SYSTEMS AND METHODS FOR HAIR EXTENSIONS

Description

RELATED APPLICATIONS

This application is a continuation-in-part of U.S. application Ser. No. 19/075,218, filed Mar. 10, 2025, now allowed, which claims priority to and the benefit of U.S. Provisional Application No. 63/563,950, filed on Mar. 11, 2024, and U.S. Provisional Application No. 63/755,523, filed on Feb. 7, 2025, each of which is hereby incorporated by reference herein in its entirety.

TECHNICAL FIELD

The present disclosure relates generally to systems and methods for hair extensions, and more particularly, to systems and methods for permanent and semi-permanent bases for coupling with hair extensions, hair wefts, toppers, wigs, or the like.

BACKGROUND

Typical hair extensions or hair wefts are coupled to a base or a hair base formed from hair of the user/wearer along with fasteners (e.g., collapsible beads). As such, as the hair of the user grows, the hair extensions coupled thereto also grow out relative to the scalp of the user. This requires routine maintenance about every 4 to 8 weeks to maintain the desired look of the hair extensions. Further, typical hair extensions add bulk and weight to the user's head and when sewn to the hair base or taped/glued into/onto the hair of the user, the hair extensions are worn by the user all day and night until removed. As such, the user needs to wash, rinse, and dry their natural hair along with the hair extensions every time they wash, rinse, and dry their natural hair. In some circumstances, the user may not have sufficient hair for coupling a typical hair extension or hair weft to a hair base. Such users lacking sufficient hair may not be able to secure typical hair extensions to their head. The present disclosure is directed to solving these and other problems.

SUMMARY

According to some implementations of the present disclosure, a method is provided. The method includes coupling a substrate to a scalp of a user and coupling a hair extension element to the substrate.

According to some implementations of the present disclosure, a hair extension system is disclosed. The system includes a substrate configured to be coupled to a scalp of a user and a hair extension element configured to be coupled to the substrate.

According to some implementations of the present disclosure, a hair extension system includes: a foundation with (i) a plurality of implants configured to be positioned about a head of a user, and (ii) a wire coupled to each of the plurality of implants; and a hair extension coupled to the foundation.

According to some implementations of the present disclosure, a hair extension system includes a foundation with (i) a first implant configured to be positioned adjacent to a first ear of a user; (ii) a second implant configured to be positioned adjacent to a second ear of the user; (iii) a loop piercing configured to be positioned between the first implant and the second implant; and (iv) a wire coupled to the first implant, the second implant, and the loop piercing; and a hair extension coupled to the foundation.

According to some implementations of the present disclosure, a hair extension system includes a foundation configured to be coupled about a portion of a head of a user, the foundation has (i) a first substrate with a first surface that is configured to face the head of the user and a second opposing surface; and (ii) a first portion of an interlocking mechanism protruding from the second opposing surface of the first substrate; and a hair extension configured to be removably coupled to the foundation, the hair extension has (i) extension hair bundled together; (ii) a second substrate with a first surface that is configured to face the extension hair and a second opposing surface; and (iii) a second portion of the interlocking mechanism protruding from the second opposing surface of the second substrate.

According to some implementations of the present disclosure, a hair extension system includes a foundation configured to be coupled about a portion of a head of a user, the foundation has (i) a first substrate; and (ii) a first portion of a zipper mechanism coupled to the first substrate; and a hair extension configured to be removably coupled to the foundation, the hair extension has (i) a second substrate; (ii) extension hair bundled together and coupled to the second substrate; and (iii) a second portion of the zipper mechanism coupled to the second substrate.

According to some implementations of the present disclosure, an end clip configured to be used in a hair extension system, the end clip having a base having a first portion and a second portion with a necked portion between the first portion and the second portion; and a plurality of fingers extending from the second portion of the base.

According to some implementations of the present disclosure, a hair extension system includes a base configured to be coupled to a scalp of an user, the base including: a base substrate having a first base end portion, an opposing second base end portion, and a central base portion extending from the first base end portion to the second base end portion; a first base end coupling mechanism fixed to the first base end portion of the base substrate; a second base end coupling mechanism fixed to the second base end portion of the base substrate; and a first press lock fastener fixed along a length of the central base portion of the base substrate. The hair extension system may also include a hair extension element configured to be coupled to the base, the hair extension element including: an extension substrate having a first extension end portion, an opposing second extension end portion, and a central extension portion extending from the first extension end portion to the second extension end portion; a first extension end coupling mechanism fixed to the first extension end portion of the extension substrate, the first extension end coupling mechanism being configured to be coupled to the first base end coupling mechanism to aid in securing the first extension end portion of the extension substrate to the first base end portion of the base substrate; a second extension end coupling mechanism fixed to the second opposing extension end portion of the extension substrate, the second extension end coupling mechanism being configured to be coupled to the second base end coupling mechanism to aid in securing the second extension end portion of the extension substrate to the second base end portion of the base substrate; and a second press lock fastener fixed along a length of the central extension portion of the extension substrate, the second press lock fastener being configured to be coupled to the first press lock fastener to aid in securing the central extension portion of the extension substrate to the central base portion of the base substrate.

The above summary is not intended to represent each implementation or every aspect of the present disclosure. Additional features and benefits of the present disclosure are apparent from the detailed description and figures set forth below.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a front view of a hair extension system including a zipper fastening mechanism according to some implementations of the present disclosure;

FIG. 2A illustrates a portion of a method of installing the hair extension system of FIG. 1 on a user according to some implementations of the present disclosure;

FIG. 2B illustrates another portion of the method of installing the hair extension system of FIG. 1 on a user according to some implementations of the present disclosure;

FIG. 2C illustrates another portion of the method of installing the hair extension system of FIG. 1 on a user according to some implementations of the present disclosure;

FIG. 2D illustrates another portion of the method of installing the hair extension system of FIG. 1 on a user according to some implementations of the present disclosure;

FIG. 2E illustrates another portion of the method of installing the hair extension system of FIG. 1 on a user according to some implementations of the present disclosure;

FIG. 2F illustrates another portion of the method of installing the hair extension system of FIG. 1 on a user according to some implementations of the present disclosure;

FIG. 2G illustrates another portion of the method of installing the hair extension system of FIG. 1 on a user according to some implementations of the present disclosure;

FIG. 2H illustrates another portion of the method of installing the hair extension system of FIG. 1 on a user according to some implementations of the present disclosure;

FIG. 2I illustrates another portion of the method of installing the hair extension system of FIG. 1 on a user according to some implementations of the present disclosure;

FIG. 2J illustrates another portion of the method of installing the hair extension system of FIG. 1 on a user according to some implementations of the present disclosure;

FIG. 3 is a front view of a hair extension system including an interlocking mechanism according to some implementations of the present disclosure;

FIG. 4A illustrates a portion of a method of installing the hair extension system of FIG. 3 on a user according to some implementations of the present disclosure;

FIG. 4B illustrates another portion of the method of installing the hair extension system of FIG. 3 on a user according to some implementations of the present disclosure;

FIG. 4C illustrates another portion of the method of installing the hair extension system of FIG. 3 on a user according to some implementations of the present disclosure;

FIG. 4D illustrates another portion of the method of installing the hair extension system of FIG. 3 on a user according to some implementations of the present disclosure;

FIG. 4E illustrates another portion of the method of installing the hair extension system of FIG. 3 on a user according to some implementations of the present disclosure;

FIG. 4F illustrates another portion of the method of installing the hair extension system of FIG. 3 on a user according to some implementations of the present disclosure;

FIG. 5A is a front view of a hair extension system including a magnetic fastening mechanism according to some implementations of the present disclosure;

FIG. 5B illustrates a portion of a method of installing the hair extension system of FIG. 5A on a user according to some implementations of the present disclosure;

FIG. 5C illustrates another portion of the method of installing the hair extension system of FIG. 5A according to some implementations of the present disclosure;

FIG. 6 illustrates an end clip to aid in holding down ends of a hair extension system relatively closer to the scalp of the user according to some implementations of the present disclosure;

FIG. 7 illustrates a method of installing a hair extension directly to the scalp/skin of a user according to some implementations of the present disclosure;

FIG. 8 illustrates a method of installing a base of a hair extension system directly to the scalp/skin of a user according to some implementations of the present disclosure;

FIG. 9 illustrates a partially exploded view of a hair extension system including a wire base coupled to loop piercings according to some implementations of the present disclosure;

FIG. 10 illustrates a method of attaching a hair extension portion of the system of FIG. 9 to the wire base according to some implementations of the present disclosure;

FIG. 11 is a top view of a head of a user with a plurality of implants installed about the head of the user and coupled with a base wire to form a foundation for attaching a hair extension portion thereto according to some implementations of the present disclosure;

FIG. 12 is an exploded perspective view of one of the implants of FIG. 11 illustrating a path of the base wire therethrough;

FIG. 13 is a cross-sectional perspective view of the implant of FIG. 12;

FIG. 14A is a cross-sectional side of the implant of FIG. 12 in a first configuration with a cap decoupled from a post of the implant;

FIG. 14B is a cross-sectional side of the implant of FIG. 12 in a second configuration with the cap coupled to the post and engaging the wire;

FIG. 15 is an exploded perspective view of another one of the implants of FIG. 11 positioned at the end of the foundation according to some implementations of the present disclosure;

FIG. 16A is an assembled perspective view of the implant of FIG. 15 in a first configuration with a cap partially coupled to a post of the implant;

FIG. 16B is an assembled perspective view of the end implant of FIG. 15 in a second configuration with a cap further coupled to the post of the implant;

FIG. 17 is an exploded perspective view of an implant configured to mate with a wire according to some implementations of the present disclosure;

FIG. 18 is an assembled perspective view of the implant of FIG. 17;

FIG. 19A is a cross-sectional side of the implant of FIG. 17 in a first configuration with a cap decoupled from a post of the implant;

FIG. 19B is a cross-sectional side of the implant of FIG. 17 in a second configuration with the cap coupled to the post and engaging the wire;

FIG. 20 is an exploded perspective view of an implant configured to mate with a wire according to some implementations of the present disclosure;

FIG. 21 is a front perspective view of a hair extension system with a hair extension base separated from a hair extension element according to some implementations of the present disclosure;

FIG. 22A is an assembled front view of a portion of the hair extension base of the hair extension system of FIG. 21;

FIG. 22B is an exploded front view of the portion of the hair extension base of FIG. 22A;

FIG. 22C is a cross-sectional view of a portion of the hair extension base of FIG. 22A;

FIG. 23A is an assembled front view of a portion of the hair extension element of the hair extension system of FIG. 21;

FIG. 23B is an assembled rear view of the portion of the hair extension element of FIG. 23A;

FIG. 23C is an exploded front view of the portion of the hair extension element of FIG. 23A;

FIG. 23D is a cross-sectional view of a portion of the hair extension element of FIG. 23A;

FIG. 24 is a cross-sectional view of a portion of the hair extension base of FIG. 22A removably connected to a portion of the hair extension element of FIG. 23A according to some implementations of the present disclosure;

FIG. 25A illustrates a portion of a method of installing the hair extension system of FIG. 21 on a user according to some implementations of the present disclosure;

FIG. 25B illustrates another portion of a method of installing the hair extension system of FIG. 21 on a user according to some implementations of the present disclosure;

FIG. 25C illustrates another portion of a method of installing the hair extension system of FIG. 21 on a user according to some implementations of the present disclosure;

FIG. 25D illustrates another portion of a method of installing the hair extension system of FIG. 21 on a user according to some implementations of the present disclosure;

FIG. 25E illustrates another portion of a method of installing the hair extension system of FIG. 21 on a user according to some implementations of the present disclosure;

FIG. 25F illustrates another portion of a method of installing the hair extension system of FIG. 21 on a user according to some implementations of the present disclosure;

FIG. 25G illustrates another portion of a method of installing the hair extension system of FIG. 21 on a user according to some implementations of the present disclosure;

FIG. 25H illustrates another portion of a method of installing the hair extension system of FIG. 21 on a user according to some implementations of the present disclosure; and

FIG. 26A illustrates a hair extension base of a hair extension system according to some implementations of the present disclosure.

FIG. 26B is an exploded front view of the hair extension base of FIG. 26A.

FIG. 26C is cross-sectional view of a portion of the hair extension element of FIG. 26A.

While the present disclosure is susceptible to various modifications and alternative forms, specific implementations thereof have been shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that it is not intended to limit the present disclosure to the particular forms disclosed, but on the contrary, the present disclosure is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure as defined by the appended claims.

DETAILED DESCRIPTION

The present disclosure provides systems and methods for installing hair extension elements or hair weft elements to a head of a user (e.g., a client, a patient, a human, an animal, a subject, etc.) in semi-permanent, permanent, and removable fashions.

According to some implementations, the disclosed systems and methods for installing hair extension elements allow for users with varying hair lengths, hair density, and the absence of natural hair itself, to securely attach a hair extension element to the head of the user.

According to some implementations, a hair extension system includes a substrate configured to be coupled to the scalp of a user and a hair extension element configured to be coupled to the substrate.

In some implementations, the substrate is made of one or more materials, such as, for example, metal, plastic, rubber, glue, tape, magnetic strips, silicone, fabric, or any combination thereof. In some implementations, the substrate includes one or more layers of the same and/or different materials.

According to some implementations, the substrate is coupled to the scalp of the user in a permanent fashion. In some such implementations, the substrate is sewn, threaded, sutured, stitched, stapled, pierced, or any combination thereof to the scalp of the user with a thread or suture that is not readily biodegradable. In other words, the thread or suture that couples the substrate to the scalp of the user remains in place without dissolving or breaking apart until removed by a technician or a user, for example, to adjust or replace the hair extension system after a period of wear.

According to some implementations, the substrate is coupled to the scalp of the user in a semi-permanent fashion. In some such implementations, the substrate is be sewn, threaded, sutured, stitched, stapled, pierced, or any combination thereof to the scalp of the user with a thread or suture that is readily biodegradable. In other words, the thread or suture that couples the substrate to the scalp of the user may be configured to be absorbed into tissue of the user (e.g., into the tissue of the scalp of the user) and/or to be dissolved or broken up over a period of time (e.g., after a period of two weeks, after a period of one month, after a period of six months, after a period of a year, etc.).

The hair extension elements described herein can be customized to the needs of the user. In some implementations, the hair extension elements are configured to enhance the appearance of the user's natural hair by supplementing the natural hair of the user with hair extension elements sized and fitted to the user in a manner to complement the natural hair of the user. In some implementations, the hair extension elements are configured to act as a replacement or a substantial replacement to the user's natural hair, for example, for users who are not able to maintain natural hair due to illness or other conditions, when a user has thinned hair, hair loss, or the like. In this regard, the size and shape of the substrate and the hair extension elements can be adjusted to provide the user with hair extension elements that mimic the look and feel of natural hair. Accordingly, the hair extension elements and substrates described herein can be customized according to the needs of the user.

According to some implementations, the hair extension elements described herein are created by starting with a string and/or material that is positioned relatively horizontally. The string has no memory properties and is not rigid. Then strands of extension hair (e.g., one at time, two at a time, a bundle of hairs at a time) are tied (manually by hand and/or automatically using a machine) along the string to create a row of extension hair or a hair weft. Thereafter, the interface or junction of the extension hair and string is secured by (i) attaching a substrate to the interface, (ii) sewing the soft string about itself, the extension hair, the substrate, and/or the scalp of the user, (iii) applying an adhesive/glue, keratin, or the like to the interface, (iv) or any combination thereof.

In some implementations, and generally in the context of attaching a hair weft to a hair base, sewing generally refers to the use of thread to attach two items together by wrapping the thread about the items and/or through at least a portion of one or both items and/or by making stitches or ties or knots with the thread. In some such implementations, the thread is made of any suitable material, such as, for example, cotton, polyester, nylon, silk, or any combination thereof. In some implementations, and generally in the context of attaching an item (e.g., a hair weft, a substrate, a mesh, etc.) directly to skin of a user, stitching generally refers to the use of sutures to attach the item directly to the skin of the user. In some such implementations, the suture material is made of any suitable material, such as, for example, polyglycolic acid, cat gut, silk, nylon, polypropylene, or any combination thereof. In some such implementations, polyglycolic acid and/or cat gut are used for absorbable sutures, and silk, nylon, polypropylene, or any combination thereof are used for non-absorbable sutures.

In some implementations, in lieu of the string, the strands of extension hair are bonded directly to a substrate. The substrate may be of minimal dimensions necessary to appropriately bond to the strands of extension hair. In some implementations, the substrate is a thin layer of keratin glue or any other similar material.

In some implementations, in lieu of or in addition to using the string, a rigid wire is used. The rigid wire has memory properties such that the rigid wire can be bent and/or shaped into a structure/pattern that is relatively maintained over time. The rigid wire can have a thickness between about 0.03 millimeters to about 1 millimeter. As such, the hair extension can be molded and bent about the head of a user and hold that shape as desired by the installer. The rigid wire also aids in minimizing and/or reducing and/or eliminating a ripping effect that can occur with hair extensions that are sewn to foundations without such a rigid wire incorporated into the hair extension structure.

In some such implementations, the rigid wire is encapsulated in the hair extension by the extension hair, the substrate, the adhesive/glue, etc., or any combination thereof to aid in providing a cushion between the rigid wire and the scalp of the user.

Referring now to FIG. 1, a hair extension system 100 is illustrated. The hair extension system 100 includes a base 120 and a hair extension element 150. The base 120 is configured to be coupled to a user along, for example, a hair part running along a rear of the head of the user between respective temples of the user. The hair extension element 150 is configured to be coupled to the base 120. The base 120 includes a substrate 122 that serves as the foundation for the hair extension element 150 to be attached thereto. Similarly, the hair extension element 150 includes a substrate 152 to which extension hair 154 is bonded.

Attached to the substrate 122 is a zipper tape 130 with zipper teeth 132. The zipper tape 130 runs generally along the entire length of the base 120. A first end portion of the zipper tape 130 includes a first zipper stop element 140. As shown, the zipper tape 130 is coupled to the substrate 122 with a thread 124 with one or more stitches. Alternatively, the zipper tape 130 can be coupled to the substrate 122 by any other means, such as for example, adhesive, bonding, glue, etc., or any combination thereof.

The substrate 152 of the hair extension element 150 includes, is coupled with, and/or bonded to a zipper tape 160 with zipper teeth 162. The zipper tape 160 runs generally along the entire length of the hair extension element 150. A first end portion of the zipper tape 160 includes a second zipper stop element 170.

According to some implementations, to couple the extension hair element 150 to the base 120, the first zipper stop element 140 and the second zipper stop element 170 are brought together such that a zipper slider 172 aligns with a zipper notch 142 formed in the first zipper stop element 140. In some implementations, the first zipper stop element 140 includes a magnetic element 144 and the second zipper stop element 170 includes a corresponding magnetic element 174 that are configured to attract one another and facilitate an alignment of the second zipper stop element 170 with the first zipper stop element 140. According to some implementations, the magnetic element 144 and the magnetic element 174 attract one another to a sufficient degree to keep the first zipper stop element 140 engaged to the second zipper stop element 170 (e.g., with the zipper slider 172 aligned with the zipper notch 142) even while the zipper is in an unzipped configuration (e.g., when the zipper teeth 132 and the corresponding zipper teeth 162 are not interlocked).

According to some implementations, the first end portion of the zipper tape 130 includes apertures 134. The apertures 134 extend through the substrate 122. The apertures 134 allow a technician installing the hair extension system 100 and/or the user of hair extension system 100 to further secure the base 120 to the user. For example, in some implementations, thread is used to stitch a first end of the substrate 122 to the user so that the interface between hair extension element 150 and base 120 remains tightly, securely, and discreetly against the user during use. The number and size of the apertures 134 is varied. While two apertures are shown on a first end of the base 120, the base 120 can include one, two, three, four, or more apertures 134 on each respective end of the substrate 122.

To couple the hair extension element 150 to the base 120, a user of hair extension system 100 engages first zipper stop element 140 with the second zipper stop element 170 (e.g., by positioning the first magnetic element 144 sufficiently close to the second magnetic element 174), and then uses the zipper pull 164 to pull the zipper slider 172 along the zipper tape 160. As the zipper slider 172 moves across the zipper tape 160, the zipper teeth 132 interlock with the corresponding zipper teeth 162 thereby removably coupling the hair extension element 150 to the base 120.

The base 120 can couple to the user in a variety of manners. According to some implementations, the base 120 is attached to a hair base formed using natural hair of the user (e.g., hair that has grown from the head of the user and is still attached and not fallen out, yet). In some implementations, the base 120 is attached to the skin and/or scalp of the user, for example, to the skin/scalp of the user that is exposed along a hair part line established between, for example, respective temples of the user along the back of the head of the user (hereinafter referred to as a “scalp base”). The base 120 can be attached to the hair base and/or the scalp base of the user using a variety of methods and materials including thread, sutures, stitches, staples, adhesives, piercings, or any combination thereof.

While the hair extension system 100 has been described as having the zipper tape 130, 160 bonded to the substrate 122 of base 120 and the substrate 152 of hair extension element 150, in some alternative implementations, there are no separate substrates where the zipper tape itself acts as the substrate. Further, in some implementations, the base 120 is composed entirely of the substrate 122. In this regard, the base 120 can be composed of a mesh material, as is described in more detail with respect to FIG. 8.

Referring to FIGS. 2A-2J, a method of installing the hair extension system 100 to a hair base on the head of a user is illustrated. However, the base 120 of the hair extension system 100 can also be coupled to the head of the user using any of the other disclosed methodologies herein (e.g., to the scalp base of the user).

As illustrated in FIG. 2A, a hair base 180 is designed to securely hold the extension hair 154 in place while blending naturally with the user's existing hair. The hair base 180 is made from natural hair 182 and hair beads 184. The hair beads 184 are small, discreet components that attach to the natural hair 182. These beads are typically made from a lightweight material such as silicone and/or metal and are designed to be gentle on the hair while providing a secure hold. A first portion of natural hair with roots along the hair part of the user is threaded through a first hair bead closest to the roots of the first portion of natural hair. The first portion of natural hair is divided into a second portion that is allowed to hang down from the first hair bead and a third portion that is threaded through a successive, second hair bead. An additional fourth portion of natural hair with roots along the hair part of the user is threaded through the second hair bead along with the third portion of natural hair. This process continues in a similar manner until hair base 180 is formed. During use, the hair beads 184 remain tightly fixed to the natural hair 182, thereby ensuring that the hair base 180 does not move much relative to the scalp of the user.

FIG. 2B illustrates an implementation of attaching the base 120 of the hair extension system 100 to the hair base 180. As shown, the thread 124, is used to secure the base 120 to the hair base 180. The thread 124 is threaded and stitched along a top edge 127 of the base 120 to secure the base 120 to the hair base 180. When attached, a first surface 125 of the base 120 faces the user's head, while a second surface 126 faces away from the head. Further, the top edge 127 and a bottom edge 128 of base 120 provide structural boundaries for the attachment of other components. For example, along the second surface 126, the zipper tape 130 is affixed. The zipper tape 130 includes the zipper teeth 132, which interlock with the corresponding zipper teeth 172 of the hair extension element 150 to secure the hair extension element 150 in place when the hair extension system 100 is in a worn configuration.

Referring to FIG. 2C, the hair extension system 100 is illustrated in its applied state on a user's head (e.g., coupled to the hair base 180). The base 120 is positioned along the hair base 180, ensuring a seamless integration with the natural hair. Following attachment of the base 120, FIG. 2D illustrates a process of attaching the hair extension element 150 to the base 120 that has been secured to the hair base 180 of the user. As illustrated in FIG. 2D, the hair extension element 150 includes a first surface 155, which faces the head when the device is worn, and a second surface 156, which faces away from the head. Further, the hair extension element 150 features a top edge 157 and a bottom edge 158, which provide structural boundaries for the attachment of other components.

Referring to FIG. 2E, corresponding ends of the base 120 and the hair extension element 150 are brought together to begin the coupling process. At a sufficiently close distance, magnetic attraction between the magnetic element 144 and the magnetic element 174 causes the first zipper stop element 140 and the second zipper stop element 170 to couple.

The base 120 further includes the zipper tape 130, which is equipped with the zipper teeth 132. The zipper teeth 132 interlock with the corresponding zipper teeth 162 on the hair extension element 150, allowing for easy attachment and removal of the hair extension element 150. The zipper tape 130 is securely attached to the substrate 122.

The first zipper stop element 140 is provided at one end of the zipper tape 130 to facilitate the engagement of the zipper teeth 132 with the zipper teeth 162. Adjacent to the first the zipper stop element 140 is the zipper notch 142, which helps guide align the zipper slide 172 with the first zipper stop element 140 during the attachment process. The zipper pull 164 allows a user to easily move the zipper slide 172 to engage and disengage the zipper teeth 132 from the zipper teeth 162, allowing the hair extension element 150 to be attached or removed from the base 120. The zipper pull 164 is designed to be easy to use, even with one hand, making the hair extension system 100 convenient and user-friendly.

In addition to the zipper components, according to some implementations the base 120 includes apertures 134, which are used for additional securing mechanisms, such as clips or bobby pins, to provide extra stability to the hair extension system.

According to implementations, the hair extension element 150 includes the substrate 152, which is similar in construction to the substrate 122 of the base 120. The substrate 152 supports the extension hair 154, which is designed to blend seamlessly with the user's natural hair. The extension hair 154 is made from natural or synthetic fibers, depending on the desired look and feel.

The hair extension element 150 also includes the zipper tape 160, which is equipped with the zipper teeth 162 that correspond to the zipper teeth 132 on the base 120. The zipper tape 160 is securely attached to the substrate 152, ensuring the hair extension element 150 remains stable during use.

The magnetic element 144 and the magnetic element 174 which facilitate alignment of the first zipper stop element 140 and the second zipper stop element 170. The magnetic attraction between the magnetic element 144 and the magnetic element 174 also allow the first zipper stop element 140 to be retained within the second zipper stop element 170 when the zipper is in an unzipped configuration.

Referring now to FIGS. 2F-2H, once the second zipper stop element 170 has been properly aligned with the first zipper stop element 140 and engaged thereto, a user begins to pull the zipper pull 164 along the base 120 to detachably couple the base 120 to the hair extension element 150. FIG. 2I illustrates the hair extension system 100 fully coupled to the hair base 180 of a user. FIG. 2J illustrates hair extension system 100 fully coupled to the hair base 180 of a user, with the user's hair part unparted and the natural hair repositioned in its typical resting location.

In another implementation, a hair extension system 200 is provided as illustrated in FIG. 3. The hair extension system 200 includes a base 220, which serves as the primary support structure for a hair extension element 250. The base 220 has a substrate 222, which is designed to interface with the user, for example, using any of the methodologies described above with respect to the base 120 of the hair extension system 100 (e.g., to the hair base 180 and/or to the scalp base, as described below). The base 220 also includes a first interlocking mechanism 232 and a second interlocking mechanism 234 coupled to the substrate 222. The interlocking mechanisms 232, 234 are configured to secure the hair extension element 250 to the base 220. The first interlocking mechanism 232 is positioned on an upper portion of the substrate 222, while the second interlocking mechanism 234 is positioned on a lower portion of the substrate 222. Together, interlocking mechanisms 232, 234 ensure a firm and stable connection between the base 220 and the hair extension element 250.

Additionally, according to some implementations, the base 220 includes an additional securing mechanism 236 located on one or both ends of the substrate 222, proximate to the temples of the user when the substrate 222 is coupled to the user. The additional securing mechanism 236 provides extra stability and security, preventing any accidental detachment of the hair extension element 250 during use. The additional securing mechanism 236 is strategically placed to complement the interlocking mechanisms 232 and 234, enhancing the overall reliability of the system 200.

The hair extension element 250 includes a substrate 252 and a extension hair 254. As illustrated in FIG. 4D, the hair extension element 250 includes a first interlocking mechanism 262 that corresponds to the first interlocking mechanism 232 of the substrate 222 and a second interlocking mechanism 264 that corresponds to the second interlocking mechanism 234 of the substrate 222. The first interlocking mechanism 262 is positioned on an upper portion of the substrate 252, while the second interlocking mechanism 264 is positioned on a lower portion of the substrate 252. Together, these interlocking mechanisms 232, 262 and 234, 264 ensure a firm and stable connection between the base 220 and the hair extension element 250. Also as illustrated in FIG. 4D is an additional securing mechanism 266 located on one or both ends of the substrate 252, corresponding to the additional securing mechanism 236 of base 220. The additional securing mechanism 266 provides extra stability and security, preventing any accidental detachment of the hair extension element 250 during use. The additional securing mechanism 266 is strategically placed to complement the interlocking mechanisms 262 and 264, enhancing the overall reliability of the system 200.

Referring now to FIGS. 4A-4F a method of attaching the hair extension system 200 to the scalp base of the user is illustrated. It should be noted that although FIGS. 4A-4F are illustrated with reference to the hair extension system 200, the same or similar techniques are suitable to couple any other hair extension system described herein to a scalp base 280 of a user. As illustrated in FIG. 4A, first a technician or a user of the hair extension system 200 creates a part in the hair of the user to reveal the scalp base 280 consisting of the hair part 282 that runs along the rear of the head of the user between respective temples of the user. FIG. 4B-4C illustrates a sequence in which the base 220 is attached to the scalp base 280 along the hair part 282. The base 220 features a first surface 225, which is intended to face towards the user's head, ensuring a secure and comfortable fit. The first surface 225 is designed to be in contact with the scalp base 280, providing stability and preventing slippage during use. A second surface 226 of the base 220 faces away from the head, and it is typically where the hair extensions are attached or integrated. The base 220 is further defined by a top edge 227 and a bottom edge 228. The top edge 227 is positioned closer to the top of the head, while the bottom edge 228 is oriented towards the bottom of the head while the base 220 is in use. Base 220 is attached to the scalp base 280 using any suitable means, including but not limited to adhesives, threads, sutures, piercings, and any combination thereof.

Referring now to FIG. 4D, the removable coupling of the base 220 to the hair extension element 250 is illustrated. The base 220 is equipped with the first interlocking mechanism 232 and the second interlocking mechanism 234. These interlocking 232, 234 mechanisms are designed to detachably engage with corresponding interlocking mechanisms on the hair extension element 250 to ensure a secure fit. The first interlocking mechanism 232 and the second interlocking mechanism 234 are positioned on the substrate 222 of the base 220.

The hair extension element 250 is designed to integrate seamlessly with the base 220. The hair extension element 250 has a top edge 257 and a bottom edge 258, which define the boundaries of the hair extension element 250. The hair extension element 250 also includes a first interlocking mechanism 262 and a second interlocking mechanism 264 coupled to the second substrate 252. These interlocking mechanisms 262, 264 correspond to the interlocking mechanisms 232, 234 on the base 220, allowing for a secure attachment.

To further enhance the security of the attachment, the hair extension system 200 includes additional securing mechanism 236 on the base 220 and additional securing mechanism 266 on the hair extension element 250. These additional securing mechanisms provide extra retention of the ends of the base 220 to the hair extension element 250, ensuring that the hair extension system 200 remains firmly in place during use.

The design of the interlocking mechanisms and the additional securing mechanisms ensures that the hair extension system 200 is both easy to use and reliable. The interlocking mechanisms 232, 234, 262, and 264 allow for quick attachment and detachment of the base 220 from the hair extension element 250, while the additional securing mechanisms 236 and 266 provide added security to the attachment of the base 220 to the hair extension element 250, preventing the hair extension element 250 from slipping or becoming loose with respect to base 220.

FIG. 4E illustrates a cross-sectional view of the attachment between the base 220 and the hair attachment element 250. Within a middle portion of the attachment interface between the base 220 and the hair attachment element 250, the first interlocking mechanism 232 of the base 220 and the corresponding first interlocking mechanism 262 of the hair extension element 250 are fit together in a press and fit configuration and similarly, the second interlocking mechanism 234 of the base 220 and the corresponding second interlocking mechanism 264 of the hair extension element 250 are fit together. At respective ends of the base 220 and the hair extension element 250, the connection is similar except with an additional secure connection being made between the additional securing mechanism 236 and the additional securing mechanism 266. As illustrated, the additional securing mechanisms 236 and 266 are implemented as a snap, but it should be understood that the additional securing mechanism is varied as desired in some implementations. For example, a button, a snap, a magnet, a pin, etc., or any combinations thereof are suitable to be the additional securing mechanisms 236, 266. After the base 220 is attached to the scalp base 280 and the hair extension element 250 is attached to the base 220, the hair part of the user is unparted and the natural hair returned to its resting position (e.g., a worn configuration), as illustrated in FIG. 4F, with the hair extension system 200 fully attached in a worn configuration.

Now referring to FIGS. 5A-5C, a hair extension system 300 is illustrated as well as a method of attaching the hair extension system 300 to the scalp base 280. Although hair extension system 300 is illustrated attached to the scalp base 280, it should be understood that in other implementations, hair extension system 300 is attached to the hair base 180 as described in reference to the hair extension system 100.

FIG. 5A illustrates the hair extension system 300 including a base 320 and a hair extension element 350, both of which incorporate magnetic elements 330 and 360 to facilitate attachment therebetween.

The base 320 is an elongated structure that serves as the primary attachment point for the hair extension element 350. According to some implementations, the base 320 is constructed of a substrate 322. The base 320 has a top edge 327 and a bottom edge 328. The magnetic element 330 is integrated into the base 320 and extends along its length. The magnetic element 330 is designed to attract and hold the corresponding magnetic element 360 on the hair extension element 350, ensuring a secure connection. Additionally, alignment elements 336 are positioned along the base 320 to aid in the precise alignment of the magnetic elements 330, 360 to facilitate secure attachment of the base 320 to the hair extension element 350.

The hair extension element 350 includes a substrate 352, to which extension hair 354 is attached. The substrate 352 has a top edge 357 and a bottom edge 358. Similar to the base 320, the hair extension element 350 includes the magnetic element 360 that extends along the length of the substrate 352. The magnetic element 360 is positioned to align with and attach to the magnetic element 330 on the base 320. Alignment elements 366 are also included on the hair extension element 350 to ensure proper positioning and secure attachment to the base 320.

According to some implementations, magnetic element 330 and magnetic element 360 are of an elongated and flexible construction, ensuring that magnetic element 330 is able to follow the contour of the substrate 322 and that magnetic element 360 is able to follow the contour of the substrate 352, for example, when the hair extension system is in a worn configuration (e.g., when the base 320 is coupled to the user and the hair extension element 350 is coupled to the base 320).

When the hair extension system 300 is in use, the base 320 is coupled to the scalp base 280, and the hair extension element 350 is aligned with the base 320 using the alignment elements 336, 366. The magnetic elements 330, 360 attract each other, securing the hair extension element 350 to the base 320. This magnetic attachment method provides a strong and reliable connection while allowing for easy removal and reattachment of the hair extension element 350 as needed.

The extension hair 354 attached to the substrate 352 of the hair extension element 350 blends seamlessly with the natural hair, providing a natural and aesthetically pleasing appearance. The hair extension system 300 is designed to be lightweight and comfortable to wear, ensuring that the user enjoys the benefits of hair extensions without discomfort or inconvenience.

Referring now to FIG. 5B, the base 320 of the hair extension system 300 is attached to the scalp base 280 of the user in a similar manner as described with respect to the hair extension system 200 (e.g., using string, sutures, adhesive, piercings, and any combinations thereof). Once the base 320 of the hair extension system 300 is appropriately attached to the scalp base 280, the hair extension element 350 is positioned and aligned such that the magnetic element 360 is attracted to and moves towards the magnetic element 330 until the hair extension element 350 is attached to the base 320.

The substrate 352 includes a top edge 357 and a bottom edge 358. Attached to the substrate 352 is the magnetic element 360, which corresponds to the magnetic element 330 on the base 320, allowing for a secure magnetic connection. The hair extension element 350 also includes the alignment elements 366, which work in conjunction with the alignment elements 336 on the base 320 to ensure precise alignment and secure attachment.

In use, the magnetic element 330 on the base 320 and the magnetic element 360 on the hair extension element 350 attract each other, securing the hair extension element 350 to the base 320. The alignment elements 336 on the base 320 and the alignment elements 366 on the hair extension element 350 ensure that the two components are properly aligned, providing a stable and secure attachment. This system allows for easy attachment and removal of the hair extension element 350, providing a convenient and effective solution for hair extensions.

The hair extension system 300 depicted in FIG. 5C utilizes a magnetic mechanism for secure attachment. The hair extension system 300 includes a pair of magnetic elements 330 and 360, which are designed to align and attract each other, thereby securing the hair extension in place. The magnetic element 330 is integrated into the base 320 of the hair extension system 300, while the corresponding magnetic element 360 is embedded within the hair extension element 350.

When the hair extension system 300 is applied, the magnetic elements 330 and 360 are brought into proximity, causing them to attract and align due to their magnetic properties. This alignment is facilitated by the aligned elements 376, which are a result of the combination of the alignment element 336 of the base 320 and alignment element 366 of the hair extension element 350 coming together, which ensure that the magnetic elements 330, 360 are correctly positioned relative to each other. The aligned elements 376 are designed to provide a stable and secure connection, preventing any misalignment that could compromise the attachment of the hair extension.

The magnetic elements 330, 360 are strategically placed to maximize the holding strength while maintaining a discreet appearance. This design allows for a seamless integration of the hair extension system 300 with the natural hair, providing a natural look and feel. The use of magnetic elements 330 and 360 also enables easy application and removal of the hair extension system 300, offering convenience and flexibility to the user.

Referring now to FIG. 6, an end clip 400 is disclosed that is compatible with any of the hair extension system disclosed herein to further secure respective ends of a hair extension element to a respective base when the hair extension system is in a worn configuration. In this regard, the end clip 400 is designed to provide additional stability and security to hair extensions, ensuring they remain firmly in place during use.

The end clip 400 includes a base 410, which serves as the primary structural component of the clip. Extending from the base 410 are multiple fingers 420, which are designed to grip and hold the any of the described hair extension elements securely. The fingers 420 are flexible and conform to the shape of the hair extension element, providing a secure fit without causing damage to the hair.

Connecting the base 410 to the fingers 420 is a neck 430. The neck 430 includes a first portion 432, which is larger in size, and a second portion 434, which is smaller in size than the first portion 432. This design allows for a graduated transition from the base 410 to the fingers 420, enhancing the clip's ability to hold a respective hair extension element securely.

The neck 430 also features apertures 442 and 444. The aperture 442 is located on the larger side of the neck 430, while the aperture 444 is situated on the smaller side. These apertures are designed to reduce the overall weight of the clip and provide points for additional securing mechanisms if needed.

To enhance the grip and prevent slippage, one or more portions of the end clip 400 is lined with silicone 450. The silicone 450 provides a non-slip surface that helps to hold the hair extension in place, even during vigorous activities. The silicone 450 is strategically placed to maximize contact with a respective hair extension element, ensuring a secure hold.

FIG. 7 illustrates a hair extension element 550 being attached directly to the scalp base 280 of a user. Note that hair extension elements 150, 250, and 350, described elsewhere herein, can be attached directly to the scalp base 280 of the user in a similar manner as described with respect to the hair extension element 550.

The hair part 282 is a section of the user's scalp that includes a part in the hair to create a space for the attachment of the hair extension element 550. The hair part allows the extension hair 554 of hair extension element 550 to blend seamlessly with the user's natural hair, enhancing the overall appearance and making the hair extension element 550 less noticeable.

To attach hair extension element 550 to the user, thread 124 is used to stitch portions of the hair extension element 550 to the scalp base 280. In some implementations, thread 124 is used to attach a substrate 552 to the scalp base 280. In some implementations, the thread 124 is chosen to match the color of the user's hair, further enhancing the natural appearance of the extension.

Now referring to FIG. 8, a method of attaching the base 120 to the scalp base 280 of a user is illustrated. It should be noted that, although FIG. 8 is illustrated with reference to the base 120, the same or similar techniques are suitable to couple any other base to the scalp base 280 of a user. In some such implementations, the base is a piece of mesh that is coupled to the scalp base 280 of the user (e.g., via one or more stiches). In some such implementations, a hair weft, wig, or topper is thereafter coupled directly to the mesh using a thread.

The base 120 is constructed with the first surface 125 facing the head and the second surface 126 facing away from the head. The first surface 125 is designed to be comfortable when positioned against the scalp, while the second surface 126 is intended to support the attachment of a corresponding hair extension element (e.g., hair extension element 150).

The base 120 includes the top edge 127 and the bottom edge 128, which define the vertical boundaries of the base. Along the length of the base 120, the zipper tape 130 is affixed. The zipper tape 130 is equipped with zipper teeth 132 that interlock with corresponding zipper teeth 162 of the hair extension element 150 to secure the hair extension element 150 to the base 120.

The scalp base 280 serves as the foundation for the hair extension system 100, providing a stable surface for attachment. The hair part 282 is the section of the user's natural hair that is parted to accommodate the placement of the base 120. The hair part 282 ensures that the hair extension element 150 blends seamlessly with the user's natural hair, creating a natural and undetectable appearance.

In some implementations, the thread 124 is used to attach the base 120 to the scalp base 280. In this regard, the base 120 includes a substrate 122 that is composed at least in part of a mesh material. The thread 124 is used to create a number of vertical stitches along the top edge 127 at regular intervals along the scalp base 280. In some implementations, the vertical stitches are placed along the top edge 127 at equidistant intervals of every eighth inch, every quarter inch, every half inch, every inch, and/or variations thereof, depending on a number of factors, such as the weight of the hair extension element being attached to the user, the user's hair length/quality/strength, the activity level of the user, etc. In some other implementations, the vertical stitches are placed along the top edge 127 but not at equidistant intervals.

In some implementations (not illustrated), respective ends of the base 120 are configured to be attached by the thread 124 with a vertical stitch along the top edge 127 of respective ends of the base 120 and an additional vertical stitch along the bottom edge 128 of respective ends of the base 120. In contrast, between, the respective ends of the base 120, the base 120 is attached with a vertical stitch along the top edge 127 and not the bottom edge 128.

In some implementations, a base is of a generally circular or oval shape and constructed of a mesh material that extends across the center of the generally circular or oval shape to allow for the secure attachment of wigs, toppers, and/or other hairpieces to the user. In some such implementations, the base is configured to be positioned on the top of the head of the user, with the mesh material extending across the top of the head of the user. The base is attached to the scalp of the user using any of the methods described herein. For example, the base can be attached to the scalp along the top of the head of the user by pulling portions of the natural hair through holes of the mesh material and subsequently locking the natural hair into place with one or more hair beads (e.g., which are the same as, or similar to, the hair beads 184 described elsewhere herein). The hair beads are sized and shaped such that the hair beads do not readily pass through the holes in the mesh. Additionally, or alternatively, the base can be attached to the scalp of the user by sewing the mesh material to the natural hair of the user and/or the hair beads. Additionally, or alternatively, the base can be stitched to the scalp of the user directly, using stitches that are permanent or semi-permanent in nature. Subsequently, the base is configured to receive one or more hair extension elements configured to mimic the natural hair of the user and replace conventional wigs or toppers.

In yet other implementations, the mesh extends around a perimeter of the generally circular or oval shape with an open portion lacking mesh material within the center of the generally circular or oval shape. In other words, the mesh of base forms a generally ring-like structure, which is attached to the scalp of the user. The ring-like structure is advantageous for when the user has retained some natural hair along the top of the scalp and would like to supplement the natural hair along the perimeter of the scalp. In such implementations, the base is configured to be positioned around an upper perimeter of the top of the head (e.g., about a scalp base). For example, the base can be attached to the scalp along the scalp base by pulling portions of the natural hair through holes of the mesh material and subsequently locking the natural hair into place with one or more hair beads. The hair beads are sized and shaped such that the hair beads do not readily pass through the holes in the mesh. Additionally, or alternatively, the base can be attached to the scalp of the user by sewing the mesh material to the natural hair of the user and/or the hair beads. Additionally, or alternatively, the base can be stitched to the scalp of the user directly, using stitches that are permanent or semi-permanent in nature. Subsequently, the base is configured to receive one or more hair extension elements configured to mimic the natural hair of the user and replace conventional wigs or toppers.

Although not specifically illustrated in FIG. 8, according to some implementations, ends of the base 120 include a number of apertures (e.g., similar to apertures 134 described above). According to some implementations, three apertures are provided in each respective end of the base 120. In a worn configuration of the hair extension system 100, the ends of the base 120 are positioned approximately near respective temples of the user, and the apertures are used to further secure the base 120 to the scalp base 280.

In some implementations, the hair extension element 550 is configured to couple to a base 520, as illustrated with reference to FIGS. 9 and 10. Although FIGS. 9-10 refer to the hair extension element 550, it should be understood that the same or similar techniques are suitable to couple any other hair extension element described herein to the base 520.

Referring to FIG. 9, the hair extension system 500 includes the base 520, which serves as the primary support structure for the hair extension element 550. The base 520 includes a substrate 522, which provides a stable platform for the attachment of other components, such as the hair extension element 550. The base 520 includes substrate 522 and a plurality of loop piercings 530. Each loop piercing 530 is configured to receive the substrate 522 therethrough and thereby secure the substrate 522 to the scalp base 280 of a user. In this regard, each loop piercing 530 is configured to be pierced through the skin of a user and thereafter a shaft 532 is connected to a connector ring 534, securing the substrate 522 to the loop piercings 530 and the loop piercings 530 to the scalp base 280 of the user.

The hair extension element 550 is designed to be coupled to the base 520. The hair extension element 550 includes the substrate 552, which acts as the foundation for the extension hair 554. The extension hair 554 is attached to the substrate 552, allowing it to hang naturally and blend seamlessly with the user's natural hair.

Referring to FIG. 10, the hair extension element 550 includes a substrate 552 bonded to extension hair 554. The substrate 552 is a flexible material similar to the substrate 522, designed to hold the extension hair 554 securely. The extension hair 554 is attached to the substrate 552 using various methods, such as sewing, gluing, stitching, or bonding, and any combinations thereof. The substrate 552 is then attached to the base 520 and the substrate 522 using the loop piercing 530 and the thread 124.

The thread 124 is used to secure the hair extension element 550 to the base 520 and the substrate 522. According to some implementations, the thread 124 is threaded around the substrate 552 and the substrate 522 and passed through the skin of the user to secure the base 520 to the hair extension element 550. In some implementations, the thread 124 is threaded through the loop piercing 530, creating a strong and durable connection. The thread 124 can be made from various materials, such as nylon or polyester, to ensure strength and longevity.

The loop piercing 530 is designed to create a secure attachment to the scalp of a user (e.g., to the scalp base 280 of a user) and to hold the weight of the hair extension element 550 when the hair extension system 500 is in a worn configuration. As illustrated, the loop piercing 530 is positioned along the edge of the base 520 and the substrate 522, allowing the thread 124 to pass through and secure the hair extension element 550 to the scalp base 280 of a user. The loop piercing 530 can be made from metals, plastics, resins, and combinations thereof, and is designed to withstand the tension applied by the hair extension element 550.

The hair extension element 550 includes the substrate 552 with extension hair bonded thereto. The substrate 552 is a flexible material similar to the substrate 522, designed to hold the extension hair 554 securely. In some implementations, the substrate 552 includes a thin layer of keratin glue for bonding the extension hair 554 together. The extension hair 554 are attached to the substrate 552 using various methods, such as sewing, stitching, gluing, or bonding. The substrate 552 is then attached to the base 520 by the substrate 522 using the loop piercing 530 and the thread 124.

FIG. 11 illustrates a hair extension system 600 that includes a base 620 configured to be positioned around the head of a user. The base 620 is designed to provide a secure foundation for the attachment of hair extensions, such as any of the hair extension elements described elsewhere herein (e.g., hair extension element 150, 250, 350, 550, and combinations thereof).

The base 620 includes a number of implants 630 holding a base wire 622 against the scalp of a user. While the implementation illustrated in FIG. 11 includes two implants at the temples of a user and an additional five (5) implants around the back of the head of the user, it should be understood that the number and positioning of the implants 630 can be varied as desired according to a number of parameters, for example weight of the attached hair extension element (e.g., hair extension element 150, 250, 350, 550, or combinations thereof), the elasticity of the skin of the scalp, the age of the user, the activity level of the user, etc. Although the base 620 is illustrated having implants 630 in FIG. 11, in some implementations, base 620 includes one or more implants 630, one or more implants 650, one or more implants 670, one or more implants 690, and/or combinations and variations thereof.

The base 620 includes the base wire 622, which extends around the perimeter of the user's head, providing structural support and stability for attaching the hair extension element (e.g., hair extension element 150, 250, 350, 550, or combinations thereof).

The base wire 622 is connected to an end cap 624 at each terminal end of the base wire 622, ensuring that the base wire 622 remains securely in place and does not move or shift during use. The end cap 624 serves to protect the ends of the base wire 622 and to provide a smooth, finished appearance.

The hair extension system 600 further includes additional implants 630, which are strategically positioned around the head of the user. Each implant 630 has a base 632 that is designed to be implanted below the skin of the user. The base 632 provides a stable anchor point for the implant 630. In some implementations, the base 632 is generally smooth. In some other implementations, the base 632 is generally roughened to aid in osteointegration of the implant and the skin and/or bone of the user. In some implementations, the base 632 includes a porous coating to aid in osteointegration of the implant and the skin and/or bone of the user.

Extending from the base 632 is a post 634, which protrudes through the skin and provides a point of attachment of the base wire 622 to the user. The post 634 is designed to be durable and to withstand the forces exerted through the base wire 622 by the attached hair extension element (e.g., hair extension element 150, 250, 350, 550, or combinations thereof) during daily wear by the user.

A cap 636 is removably coupled to the post 634. The cap 636 serves to secure the base wire 622 to the post 634, preventing any movement or displacement of the wire. Additionally, the cap 636 provides a smooth and aesthetically pleasing appearance, concealing the post 634 and the attachment point.

Implant 630 is illustrated in exploded view in FIG. 12. A base 632 serves as the foundational structure of the implant 630 and anchors the implant 630 below the skin of the user. In some implementations, implant 630 is a subdermal implant. In some implementations, implant 630 is configured to attach to the bone of the user's scalp.

Extending from the base 632 is a post 634. The post 634 is a cylindrical extension that rises vertically from the base 632 and in some implementations, at least a portion of the post 634 extends above the skin of a user. The post 634 includes a threaded bore 635, an internal threaded cavity designed to receive and engage with a threaded shaft 637.

The post 634 includes a throughbore 633, which is a passageway that allows the base wire 622 to pass through. The throughbore 633 is strategically positioned to ensure the base wire 622 is threaded through the implant 630 without obstruction while positioning the base wire 622 strategically close to the scalp of the user, to provide a discreet fit mimicking the appearance of natural hair while providing comfort to the user. In some implementations of the present disclosure, the posts 634 are sized and shaped to protrude from the skin, when implanted/installed, between about 0.5 millimeters and about 5 millimeters. In some implementations, the throughbore 633 of the post is sized and shaped to permit a wire therethrough having a diameter between about 0.1 millimeters and about 1.0 millimeters

The cap 636 is designed to thread into the post 634. The cap 636 is equipped with a threaded shaft 637 that corresponds to the threaded bore 635 within the post 634. When the cap 636 is screwed onto the post 634, the threaded shaft 637 engages with the threaded bore 635, securing the cap 636 in place. This mechanism ensures that the cap 636 remains firmly attached to the post 634, providing a secure closure. Any other removable or non-removable connection between the cap 636 and the post 634 is contemplated (e.g., a snap connection, a welded connection, a press-fit connection, a Morse taper connection, etc., or any other connection or any combination thereof).

When the cap 636 is in a coupled configuration, the threaded shaft 637 comes into contact with the base wire 622 and hold base wire 622 firmly in position. This configuration prevents the base wire 622 from moving relative to the implant 630, ensuring a stable and secure attachment. Base wire 622 is designed to be positioned through the throughbore 633 of the base 632 of implants 630, or similar implants (described below) to secure a respective hair extension element (e.g., hair extension element 150, 250, 350, 550, or combinations thereof) to a user.

FIG. 13 illustrates an exploded, sectional view of the implant 630 in which the base wire 622 is positioned through the throughbore 633. The throughbore 633 extends into and intersects with at least a portion of the threaded bore 635. When the cap 636 is in a coupled configuration, as described above, the threaded shaft 637 extends towards, and comes into contact with a portion of the base wire 622, holding the base wire 622 securely in place with respect to the implant 630.

In that regard, FIGS. 14A-14B illustrates the implant 630 in a decoupled configuration and coupled configuration, respectively. In FIG. 14A, the cap 636 is in a decoupled configuration and although the base wire 622 is already positioned through the throughbore 633, the base wire 622 is free to move with respect to the implant 630. In contrast, in FIG. 14B, the cap 636 is in a coupled configuration and the threaded shaft 637 has come into contact with a portion of the base wire 622 to securely hold the base wire 622 in place with respect to the implant 630.

In some implementations, the base 620 uses one or more implants 650, as illustrated in FIG. 15. The implants 650 are placed near the respective temples of a user. When a respective hair extension element (e.g., one of hair extension elements 150, 250, 350, 550, or combinations thereof) is coupled to the base 620, portions of the implant 650 are configured to closely hold the ends of the coupled hair extension element against the user to keep the hair extension element secure to the user.

The base 652 of the implant 650 is configured to be anchored into the user in a similar manner as was described with respect to the implant 630 and be positioned under the skin of the user when implanted. In some implementations, the base 652 is generally smooth. In some other implementations, the base 652 is generally roughened to aid in osteointegration of the implant and the skin and/or bone of the user. In some implementations, the base 652 includes a porous coating to aid in osteointegration of the implant and the skin and/or bone of the user.

Extending from the base 652 is a post 654. The post 654 includes a throughbore 653, which allows for the passage of the base wire 622. The post 654 also includes a threaded bore 655, which at least partially intersects with the throughbore 653. The threaded bore 655 provides a secure and adjustable connection for the cap 656, which is configured to be removably coupled to the post 654 by a connection between the threaded shaft 657 and the threaded bore 655. In some implementations of the present disclosure, the posts 654 are sized and shaped to protrude from the skin, when implanted/installed, between about 0.5 millimeters and about 5 millimeters. In some implementations, the throughbore 653 of the post is sized and shaped to permit a wire therethrough having a diameter between about 0.1 millimeters and about 1.0 millimeters

The implant 650 also features a biasing tab 660. When the cap 656 is in a coupled configuration with the base 652, the biasing tab 660 is configured to rotate towards the scalp of the user. The biasing tab 660 is positioned and configured to be attached to respective ends of the hair extension element (e.g., any of the hair extension elements described herein, and combinations and variations thereof) and hold the ends of the hair extension element closely to the user for increased security and comfort. Biasing tab 660 includes two arms with ends that are configured to fit into respective apertures 658 of the implant 650, located in post 654. Located at the ends of the two arms is a corresponding cam 662. In some implementations, the biasing tab 660 aids in keeping the hair extension within about 1 millimeter to about 3 millimeters from the scalp of the user. In some implementations, the biasing tab 660 aids in keeping the hair extension within about 2 millimeters from the scalp of the user.

While the biasing tab 660 is shown as having a generally triangular shape, the biasing tab 660 can have any shape, such as, for example, a rectangular shape, a rounded triangular shape, a square shape, a circular shape, an ovular shape, etc., or any combination thereof. The corner flap can be made of any suitable material, such as, for example, plastic, metal, rubber, silicone, or any combination thereof. In some implementations, the biasing tab 660 is about 1 millimeter wide to about 5 millimeters wide and about 3 millimeters long to about 8 millimeters long. In some implementations, the biasing tabs 660 are positioned between about 0.5 inches and 2 inches from the natural hairline of the user. In some implementations, the corner implants are positioned between about 1.0 inches and 2.0 inches from the natural hairline of the user.

FIGS. 16A-16B illustrates a sequence in which the cam 662 moves from an uncoupled configuration in FIG. 16A to a coupled configuration in FIG. 16B. According to some implementations, the arms of the biasing tab 660 fit into the respective apertures 658, and the cams 662 position the biasing tab 660 at an angle away from the scalp of the user when the cap 656 is uncoupled to the base 652 as illustrated in FIG. 16A. In contrast, when the cap 656 is in a coupled configuration (e.g., when the threaded shaft 657 is fully threaded into the threaded bore 655), the threaded shaft 657 comes into contact with the cams 662, causing the biasing tab 660 to pivot towards the scalp of the user, as illustrated in FIG. 16B.

In some implementations, the base 620 uses one or more implants 670. The implant 670 is similar to implant 630 except that the base wire 622 is configured to be positioned through a throughbore notch 673. Throughbore notch 673, in combination with a gasket 678 of cap 676, form the aperture through which the base wire 622 is configured to be positioned. The throughbore notch 673 is formed within mating surface 679. To detachably couple the cap 676 to base 672 of the implant 670, the threaded shaft 677 is screwed into the threaded bore 675 until the gasket 678 comes into contact with the base wire 622 while the base wire 622 is positioned within throughbore notch 673. In such a configuration, the base wire 622 is held securely and firmly such that base wire 622 cannot move with respect to the implant 670, as illustrated in FIG. 18.

FIGS. 19A and 19B illustrate a cross-sectional view of the implant 670 in both a decoupled (FIG. 19A) and coupled (FIG. 19B) configuration. The cap 676 is designed to be removably coupled to the post 674. The cap 676 features the threaded shaft 677 that engages with the threaded bore 675 of the post 674. The threaded connection between the threaded bore 675 and the threaded shaft 677 allows for easy removal and reattachment of the cap 676 when necessary, facilitating maintenance and adjustments. In a coupled configuration, the base wire 622 is held in between the throughbore notch 673 of the base 672, and the gasket 678 of the cap 676 in a similar manner as described with respect to the implant 630 and the implant 650. In some implementations, the base 672 is generally smooth. In some other implementations, the base 672 is generally roughened to aid in osteointegration of the implant and the skin and/or bone of the user. In some implementations, the base 672 includes a porous coating to aid in osteointegration of the implant and the skin and/or bone of the user. In some implementations of the present disclosure, the posts 674 are sized and shaped to protrude from the skin, when implanted/installed, between about 0.5 millimeters and about 5 millimeters. In some implementations, the throughbore notch 673 of the post is sized and shaped to permit a wire therethrough having a diameter between about 0.1 millimeters and about 1.0 millimeters

In some implementations, one or more implants 690 are used to attach the base 620 to a user.

The implant 690 is similar to the implant 630 in components and functionality, except that the implant 690 is coupled to the user via bone screw 698 to provide further security to the connection between the implant 690 and the user. Thus, the implant 690 is suitable for use when hair extension element being attached (e.g., one of hair extension elements 150, 250, 350, 550, or combinations thereof) is heavier (e.g., due to longer extension hair), when the skin of the user cannot hold the weight of the attached hair extension element (e.g., due to inelasticity of the skin), etc.

The implant 690 includes a base 692, which is configured to be positioned adjacent to the bone structure of a user. In some implementations, the base 692 is generally smooth. In some other implementations, the base 692 is generally roughened to aid in osteointegration of the implant and the skin and/or bone of the user. In some implementations, the base 692 includes a porous coating to aid in osteointegration of the implant and the skin and/or bone of the user.

Extending from the base 692 is a post 694. The post 694 is designed to protrude from the base 692 and provide an attachment point for other components of the implant 690. The post 694 also includes a threaded bore 695. The threaded bore 695 is configured to receive a threaded shaft 697, which is part of the cap 696.

The post 694 includes a throughbore 693, which is designed to allow the base wire 622 to pass therethrough. The throughbore 693 ensures that the base wire 622 is securely held in place, preventing any unwanted movement. In some implementations of the present disclosure, the posts 694 are sized and shaped to protrude from the skin, when implanted/installed, between about 0.5 millimeters and about 5 millimeters. In some implementations, the throughbore 693 of the post is sized and shaped to permit a wire therethrough having a diameter between about 0.1 millimeters and about 1.0 millimeters

The cap 696 is designed to be removably coupled to the post 694. The cap 696 includes the threaded shaft 697 that engages with the threaded bore 695 of the post 694. When the cap 696 is screwed onto the post 694, the cap 696 acts to secure the base wire 622 in place, preventing it from moving relative to the post 694.

Additionally, the implant system 690 includes a bone screw 698. The bone screw 698 is designed to be inserted into the bone structure of a user, providing a secure anchor for the implant 690. The bone screw 698 ensures that the base 692 remains firmly attached to the bone, maintaining the stability of the implant 690 and the base wire 622.

Referring to FIG. 21, a hair extension system 700 includes a hair extension base or a base 720 configured to be secured to a user, and a hair extension element 750 configured to be removably coupled to the base 720. The hair extension element 750 has extension hair 759 and is configured to be removably connected to the base 720.

Referring generally to FIGS. 21 to 22C, the base 720 includes a substrate 722 (best shown in FIG. 22B) that provides structural support of the base 720. In some implementations, the substrate 722 is constructed from any suitable material to balance conformability, durability, and biocompatibility, including, for example, woven, knit, or nonwoven fabrics (e.g., polyester, nylon, aramid, cotton blends); mesh or lace textiles (e.g., monofilament mesh, tulle); leather; synthetic leather (e.g., polyurethane- or PVC-coated fabrics, microfiber suede); flexible polymer sheets or films (e.g., polyurethane, TPU, TPE, silicone sheet); elastomeric laminates; and combinations or multilayer laminates thereof. In some implementations, the substrates incorporate localized reinforcement tapes or bonded layers to tailor edge stiffness, distribute load, and improve wear resistance while maintaining a thin, low-profile interface.

In some implementations, the substrate 722 of the base 720 is provided as an elongated, flexible strip having a length of about 120 mm to about 200 mm, a width of about 10 mm to about 25 mm, and a thickness of about 0.3 mm to about 2 mm. For instance, in some implementations, the substrate 722 has a length of about 150 mm, a width of about 15 mm, and a thickness of about 0.5 mm. In other implementations, the substrate 722 has a length of about 180 mm, a width of about 20 mm, and a thickness of about 1 mm. The specific dimensions of the substrate 722 can be selected and adjusted based on the intended application, the anatomical region of the user's scalp, the desired coverage area, the amount of extension hair to be supported, or any combination thereof. The substrate 722 may be cut to length or otherwise tailored to fit the user's head contour, and the width may be varied to accommodate different densities or types of coupling mechanisms.

Attachment loops 726 are disposed at each end of the substrate 722 and coupled thereto, as best shown in FIG. 21 and FIG. 22C. The attachment loops 726 are positioned to receive and retain corresponding hooks 756 (best shown in FIGS. 21, 23A) of the hair extension element 750 that together aid in the installation process. For example, the attachment loops 726 facilitate pre-alignment and temporary retention of the hair extension element 750 to the base 720 prior to full engagement therewith. The attachment loops 726 have an exposed portion 726A and a base portion 726B (as best shown in FIGS. 21 and 22C). With the attachment loops 726 attached to the substrate 722, substrate end caps 728 (best shown in FIG. 22B) are fitted over the respective ends of the substrate 722. The substrate end caps 728 are configured to cover, hide, and secure the base portions 726B of each of the attachment loops 726 such that, after installation of the substrate end cap 728, the exposed portion 726A of each attachment loop 726 remains accessible to, for example, the hooks 756. Each of the substrate end caps 728 defines a respective slot 729 that allows respective ones of the exposed portions 726A of the attachment loops 726 to extend therethrough when assembled, as shown in, for example, FIGS. 22C and 24. The slot 729 can be formed in the substrate end caps 728 as a counterbore, countersink, stepped pocket, contoured channel that conforms to the geometry of the base portion 726B to stabilize the loop 726 against rotational and lateral movement, or any combination thereof. As best shown in FIGS. 21 and 22C, a base press lock fastener 724 is fixed to the substrate 722 and extends generally between respective ends of the substrate 722 and between the attachment loops 726. The base press lock fastener 724 includes a plurality of protrusions 727 that are configured to facilitate attachment of the base press lock fastener 724 to a corresponding extension press lock fastener 754, described below. As shown in FIG. 22B, the base press lock fastener 724 is attached to the substrate 722 via a base bonding layer 730 positioned between the base press lock fastener 724 and the substrate 722. The base press lock fastener 724 extends between respective ends of the substrate 722 and between the attachment loops 726. The base press lock fastener 724 also includes voids 723 (best shown in FIG. 22C) that are positioned between the respective protrusions 727 and define spaces therebetween.

According to some implementations, the base press lock fastener 724 occupies between about 10% and about 90% of the area between the attachment loops 726, depending on the desired strength and flexibility of the connection between the base press lock fastener 724 and the extension press lock fastener 754. In some implementations, the base press lock fastener 724 occupies about 25%, 50%, 75%, or any other amount of the area between the attachment loops 726. According to some implementations, the base press lock fastener 724 extends between the attachment loops 726 leaving about 3 mm to 5 mm of space away from the respective attachment loops 726.

Referring to FIG. 22B, the substrate 722 serves as the component to which other components of the hair extension base 720 are bonded. In this regard, a hair bonding layer 732 is attached to a first surface of the substrate 722. The hair bonding layer 732 aids in securing the base 720 to existing hair of a user by bonding the substrate 722 to the user's hair. In some implementations, the bonding layer 732 is a peel-away hair adhesive (e.g., a pressure-sensitive adhesive with a removable release liner). In other implementations, the hair bonding layer 732 is any other suitable adhesive or attachment medium configured to attach the base 720 to the user's hair via the substrate 722, including double-sided medical tapes, silicone-based adhesives, acrylic or polyurethane pressure-sensitive adhesives, heat-activated adhesives, cyanoacrylate or epoxy systems, mechanical attachment features used in combination with adhesives, or any combination thereof.

In some implementations, the base bonding layer 730 is a hot-melt adhesive film. In alternative implementations, in addition to the bonding layer 730 or in lieu thereof, the base press lock fastener 724 is attached to the substrate 722 by other joining techniques, such as ultrasonic welding, thermal welding, radio-frequency (RF) welding, heat staking, laser welding, solvent bonding, overmolding or insert molding of the fastener onto/into the substrate, stitching, riveting, mechanical fastening, or any combination thereof.

Referring now to FIG. 22C, the base portion 726B of the attachment loop 726 includes a pair of holes, or apertures, through which a fastener, such as a rivet, is positioned to extending through the substrate 722 and permanently fix the attachment loop 726 to the substrate 722. It should be noted that the base bonding layer 730 is not shown in FIG. 22C between the substrate 722 and the base press lock fastener 724. According to some implementations, the base bonding layer 730 is implemented as a hot-melt adhesive layer of insignificant thickness, and is therefore not illustrated and/or visible in FIG. 22C.

In addition to the illustrated configuration in which the base portion 726B of each attachment loop 726 is secured to the substrate 722 by a pair of rivets extending through the substrate 722 (FIG. 22C), other attachment techniques may be employed to fix the attachment loops 726 to the base while preserving a low-profile, end-stabilized geometry. In some implementations, the rivets of the base portion 726B are swaged or crimped through aligned apertures in the substrate 722, with a backer washer on a user-facing side 721 to distribute load and present a smooth bearing surface. In some implementations, the base portion 726B is stitched to the substrate 722 using bar-tack stitches or zig-zag stitches that pass through pre-formed holes in the base portion 726B and through the substrate 722, optionally with a reinforcement tape or patch laminated to the substrate 722 to increase tear resistance in the stitched region.

In some implementations, the end cap 728 aids in retention of the attachment loop 726. For example, the slot 729 can include undercuts, ribs, or keyways that mate with complementary flats or barbs on the base portion 726B to prevent rotation, and the substrate end cap 728 is then affixed to the substrate 722 by adhesive bonding, heat staking, or ultrasonic welding so that the substrate end cap 728 clamps the base portion 726B against the substrate 722. In some embodiments, low-profile fasteners, such as micro-screws passing through the base 726B into molded inserts embedded in the substrate 722, are employed.

Generally referring to FIGS. 21 and 23A-23D, the hair extension element 750 includes a substrate 752 (best shown in FIG. 23C) to which the extension hair 759 (best shown in FIG. 21) is coupled. The substrate 752 provides structural support of the hair extension element 750. In some implementations, the substrate 752 is the same as, or similar to, the substrate 722 described above. In some such implementations, the substrate 752 is dimensioned to have complementary dimensions as the substrate 722, and is constructed of the same, or similar, materials described with respect to the substrate 722.

Attachment hooks 756 are provided on the hair extension element 750. Each of the attachment hooks 756 includes an exposed portion 756A and a covered base portion 756B. The exposed portions 756A of the attachment hooks are configured to engage with corresponding ones of the attachment loops 726 of the base 720. Engagement between the exposed portion 756A and a corresponding one of the attachment loops 726 permits a user to provisionally hang, align, and/or pre-load the hair extension element 750 relative to the base 720 prior to fully attaching the hair extension element 750 onto the base 720 (e.g., via the base press lock fastener 724 and the extension press lock fastener 754).

The substrate end caps 758 (best shown in FIG. 23) are fitted over the respective ends of the substrate 752. The substrate end caps 758 are configured to cover and hide the base portions 756B (best shown in FIG. 21 and FIG. 23D) of each of the attachment hooks 756 such that, after installation of the substrate end cap 758, an exposed portion 756A of each of the attachment hooks 756 remains accessible. The substrate end caps 758 include a slot 760 formed therein to allow respective ones of the exposed portions 756A of the attachment hooks 756 to extend through the substrate end cap 758 when assembled as shown in FIGS. 22D and 24. The slot 760 is the same as, or similar to, the slot 729 (FIG. 22B), and can be implemented in a the same, or similar, manner to conform to the geometry of the base portion 756B to stabilize the attachment hook 756 against rotational and lateral movement.

The extension press lock fastener 754 (best shown in FIG. 23C) is affixed to the substrate 752 and includes a plurality of protrusions 757 (best shown in FIGS. 21 and 23D) positioned to correspond with the voids 723 (best shown in FIGS. 21 and 22C) of the base press lock fastener 724. When pressed together, the protrusions 727 of the base press lock fastener 724 securely press fit between the protrusions 757 of the extension press lock fastener 754 and into voids 753 to form a stable and releasable connection, as best shown in FIG. 24. As best shown in FIG. 23C, the extension press lock fastener 754 is attached to the substrate 752 and extends between respective ends of the substrate 752 and between the attachment hooks 756. The extension press lock fastener 754 also includes the voids 753 (as best shown in FIG. 23D) that are positioned between the respective protrusions 757 and define spaces between the respective protrusions 727 of the extension press lock fastener 754. As shown in FIG. 23C, the extension press lock fastener 754 is attached to the substrate 752 and extends between respective ends of the substrate 752 and between the attachment hooks 756. The extension press lock fastener 754 includes the voids 753 (as best shown in FIG. 23D) that are positioned between the respective protrusions 757 and define spaces between the respective protrusions 757.

According to some implementations, the extension press lock fastener 754 occupies between about 10% and about 90% of the area between the attachment hooks 756, depending on the desired strength and flexibility of the connection. In some implementations, the extension press lock fastener 754 occupies about 25%, 50%, 75%, or any other amount of the area between the attachment hooks 756. According to some implementations, the extension press lock fastener 754 extends between attachment the hooks 756 about 3 mm to 5 mm of space away from the respective attachment hooks 756.

As best shown in FIG. 23B, the extension hair 759 extends from the substrate 752 and is configured to blend naturally with the user's natural hair in a worn configuration. In some implementations, a hair extension attachment substrate 766 is provided to which the extension hair 759 is secured, and the hair extension attachment substrate 766 is in turn bonded to the substrate 752. The hair-extension side 749 of the hair extension element 750 generally presents the finished aesthetic of the hair extension element 750.

As best shown in FIG. 23C, proceeding generally from a user-facing side 751 toward the hair-extension side 749, the substrate 752 serves as the component to which other layers of the hair extension element 750 are bonded. A bonding layer 762 is positioned to bond the extension press lock fastener 754 to the substrate 752. On the hair-extension side 749 of the substrate 752, a second bonding layer 764 is provided. The second bonding layer 764 is configured to secure the hair extension attachment substrate 766 and/or the extension hair 759 to the substrate 752. In some implementations, the hair extension attachment substrate 766 is of minimal dimensions necessary to appropriately bond to the strands of extension hair. In some implementations, the substrate 766 is a thin layer of keratin glue or any other similar material. In some implementations, the hair extension attachment substrate 766 is a string to which strands of extension hair are tied to create a row of extension hair or a hair weft. The substrate end cap 758 is shown offset from each end of the substrate 752. Each of the substrate end caps 758 are configured to fit over the end of the substrate 752 to provide edge protection and a finished appearance, while hiding the base portion 756B of the attachment hook 756. The substrate end caps 758 each include the slot 760 formed therein to allow respective ones of the exposed portion 756A of the attachment hook 756 to extend through the substrate end cap 758 when assembled, as best shown in FIGS. 23D and 24. The slot 760 can be implemented as a counterbore, countersink, stepped pocket, or contoured channel that conforms to the geometry of the base portion 756B to stabilize the attachment hook 756 against rotational and lateral movement.

In some implementations, the bonding layers 762, 764 are implemented as a hot-melt adhesive film. In alternative implementations, in place of one or more of the bonding layers 762, 764, the layers of the hair extension element 750 are joined with other joining techniques, such as ultrasonic welding, thermal welding, radio-frequency (RF) welding, heat staking, laser welding, solvent bonding, overmolding or insert molding of the fastener onto/into the substrate, stitching, riveting, or mechanical fastening.

FIG. 23D is a cross-sectional view of the hair extension element 750 according to some implementations of the present disclosure. On the user-facing side 751, the extension press lock fastener 754 is secured to the substrate 752 via the bonding layer 762. In some implementations, the bonding layer 762 is implemented as hot-melt adhesive layer of insignificant thickness, and is therefore not illustrated in FIG. 23D. The extension press lock fastener 754 presents the protrusions 757 that project outwardly for interleaving engagement with the corresponding base press lock fastener 724 on the base 720 when the hair extension element 750 is pressed into place. The voids 753 in the extension press lock fastener 754 are shaped to snugly fit the corresponding protrusions 727 of the base press lock fastener 724, thereby enhancing alignment and retention.

Beyond arranging the base portion 756B within the substrate end cap 758 as illustrated (FIGS. 23C-23D), multiple attachment constructions may be used to fix the attachment hooks 756 to the substrate 752 in a manner that stabilizes the hook against rotation and peel while preserving a thin, user-facing profile. In some implementations, the base portion 756B is a plate with apertures that align to through-holes in the substrate 752; one or more rivets, eyelets, or grommets are then swaged through the stack to secure the base 756B to the substrate 752. In other implementations, the substrate 752 is a multilayer laminate having a local pocket, and base 756B is placed in the pocket and encapsulated by bonding the laminate layers together using adhesive lamination, ultrasonic welding, or heat/pressure so that the base 756B is trapped in-plane and prevented from rotating by keying features such as flats, notches, or barbs along the perimeter of the base 756B engaging complementary features in the pocket.

In some implementations, the bonding layers 762, 764 are a hot-melt adhesive film. In alternative implementations, in place of one or more of the bonding layers 762, 764, the layers of the hair extension element 750 are joined with other joining techniques, such as ultrasonic welding, thermal welding, radio-frequency (RF) welding, heat staking, laser welding, solvent bonding, overmolding or insert molding of the fastener onto/into the substrate, stitching, riveting, mechanical fastening, or any combination thereof.

In some implementations, the base press lock fastener 724, and the extension press lock fastener 754 are fabricated from any suitable material or materials, including, without limitation, thermoplastics such as polyamides (e.g., nylon 6, nylon 6/6), polyoxymethylene (acetal/POM), polypropylene, polyethylene, polycarbonate, acrylonitrile butadiene styrene (ABS), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polyphenylene sulfide (PPS), and polyether ether ketone (PEEK); elastomeric polymers such as thermoplastic polyurethane (TPU) and thermoplastic elastomers (TPE); silicone; engineering composites including glass- or carbon-fiber reinforced polymers; metals such as stainless steel, spring steel, and aluminum, or any combination thereof. In some implementations, portions of the protrusions 727, 757 are formed from materials of differing hardness/durometer to optimize press-fit retention and peel-release behavior, and one or more low-friction or wear-resistant surface treatments or coatings (e.g., PTFE or silicone-based coatings) are applied to reduce wear, noise, and insertion force over repeated attach/detach cycles.

Now with reference to FIG. 24, when the base press lock fastener 724 and the extension press lock fastener 754 are pressed together, the protrusions 727 of the base press lock fastener 724 interleave with and press fit between the protrusions 757 of the extension press lock fastener 754 to releasably lock the hair extension element 750 to the base 720. The base press lock fastener 724 and the extension press lock fastener 754 provide a low-profile, repeatable connection that maintains the hair extension element 750 in a stable, worn configuration while permitting repeated removal and reattachment as needed. As shown in FIG. 24, the arrangement of the attachment loops 726 on the base 720, the attachment hook 756 with the exposed portion 756A on the hair extension element 750, and the elongated press lock fasteners 724, 754, act in concert to guide the components into proper press-fit engagement. Upon engagement, the extension hair 759 is supported in a position that blends naturally with the user's natural hair (as best shown in FIG. 25H), while the base 720 remains discreetly positioned against the user (as best shown in FIG. 25F).

In some implementations, the base press lock fastener 724 and the extension press lock fastener 754 are engineered to facilitate alignment flexibility during coupling of the base 720 and the hair extension element 750. The protrusions 727 of the base press lock fastener 724 and the corresponding protrusions 757 of the extension press lock fastener 754 include geometries configured to self-center and interleave even when the base press lock fastener 724 and the extension press lock fastener 754 are not perfectly aligned prior to engagement. For example, each of the protrusions 727, 757 can include tapered lead-in surfaces, radiused edges, chamfered entrance profiles, or any combination thereof, that guide the mating features into registry as axial pressure is applied. In some implementations, complementary voids 723 on the base-side and/or the voids 753 on the hair extension-side are dimensioned with clearance margins to admit the corresponding protrusions 757, 727 under conditions of minor offset, thereby promoting progressive seating and stable interlock as the components are pressed together.

This alignment-tolerant construction accommodates vertical misalignment (e.g., offset normal to the wear surface), horizontal misalignment (e.g., lateral offset along or across the length of the fastener), or a combination thereof. In some implementations, the interface tolerances allow the base press lock fastener 724 and the extension press lock fastener 754 to securely couple with a maximum misalignment of about ±5 mm in any direction prior to final seating. The elongated nature of the press lock fasteners 724, 754 further supports angular accommodation by providing multiple engagement points along their lengths, enabling the interface to ramp in from one end toward the other until full engagement is achieved. In other words, the press lock fasteners 724, 754 can start engaging at one end and progressively interlock along their length, accommodating slight misalignments and making the attachment process smoother and more forgiving.

In some implementations, the protrusion/void arrays of the press lock fasteners 724, 754 are patterned with a regular pitch in rows and columns such that successful engagement can occur even when the opposing fastener is shifted by one pitch increment. For example, instead of each protrusion 727 being guided into its nominal corresponding void 753, the geometry and pitch of the arrays permit the protrusion 727 to enter the void 753 that is one row above (e.g., along a transverse direction) or one position to the left or right (e.g., along the longitudinal direction). Likewise, the protrusion 757 of the extension press lock fastener 754 can be received in the void 723 that is offset by one row or one column relative to a nominal alignment.

In some implementations, to enhance misalignment tolerance without compromising retention, one or both of the fasteners 724, 754 incorporate alternating protrusion and recess patterns with staggered pitch or variable-width channels that receive the opposing features over a range of offsets. In some implementations, low-friction surface finishes or coatings are applied to selected contact regions to reduce initial insertion force and to prevent scuffing during alignment correction, while higher-friction or microtextured regions are positioned at final seating depths to increase resistance to peel and shear once locked.

In some implementations, one or more of the voids 723 (FIG. 22C) and the voids 753 (FIG. 23D) on the respective fasteners 724, 754 are sized to accommodate corresponding protrusions, facilitating alignment and secure seating. The interleaving press-fit connection forms a low-profile, repeatable interface that resists shear and peel forces during daily activities while permitting removal and reattachment as needed.

As shown in FIG. 24, the attachment loops 726 and the attachment hooks 756 are configured to project slightly beyond a nominal flush surface defined by adjacent portions of the substrates 722, 752 and the substrate end caps 728, 758. By contrast, the protrusions 727, 757 of the press lock fasteners 724, 754 form a low-profile interleaving field that, in an in-use condition, presents a substantially uniform composite thickness across the interface. In the assembled condition shown in FIG. 24, the exposed portion 756A of the attachment hook 756 cooperates with the attachment loop 726 to facilitate provisional alignment and to stabilize the ends during press-fit engagement of the press lock fasteners 724, 754, described in more detail with respect to FIGS. 25A-25H.

In some implementations, the exposed portion 726A of each attachment loop 726 and the exposed portion 756A of each of the attachment hooks 756 extend a controlled distance outward relative to the crest height of the adjacent protrusions 727, 757. For example, the loops/hooks 726, 756 can extend about 1-2 mm beyond the maximum protrusion height of the press lock fasteners 724, 754. This differential facilitates initial endwise engagement between the exposed portion 756A and the attachment loop 726 prior to press-fit coupling of the protrusions 727, 757, while maintaining a discreet profile once fully assembled, as best seen in FIG. 25G, described in more detail below.

In some implementations, an inner surface of the attachment loop 726 is spaced from the adjacent surface of the substrate 722 (and/or the substrate end cap 728) by a clearance that closely matches the thickness of the exposed portion 756A of the attachment hook 756. The clearance is selected so that, when the exposed portion 756A is received within the attachment loop 726, the exposed portion 756A firmly contacts the inner surface of the attachment loop 726 while permitting a limited amount of play. This limited play assists with fine alignment of the protrusions 727 of the base press lock fastener 724 relative to the protrusions 757 of the extension press lock fastener 754 prior to pressing the fasteners together.

In some implementations, the inner surface of the attachment loop 726 is positioned marginally above the inner surface of the exposed portion 756A of the attachment hook 756 when initially engaged. This geometry promotes smooth hook-in-loop capture while still allowing the exterior surfaces of the substrate end caps 728, 758 and adjacent portions of the substrates 722, 752 to appear substantially flush once the press lock fasteners 724, 754 are fully seated. In the fully seated condition, the end region presents minimal relief of the exposed portion 726A/756A necessary for secure end retention, while the interleaved protrusions 727, 757 remain substantially concealed within the composite thickness of the coupled interface.

In some implementations, the slots 729, 760 and the encapsulated base portions 726B, 756B cooperate to control the stand-off of the exposed portions 726A, 756A relative to the substrates 722, 752. The depths of the slots 729, 760 and local wall profiles can be dimensioned to establish the loop clearance and hook projection discussed above, thereby ensuring that (i) provisional end engagement between the base 720 and the hair extension element 750 occurs reliably, (ii) the press lock fasteners 724, 754 can be aligned and pressed together without interference, and (iii) the assembled interface of the hair extension system 700, including the base 720 and the hair extension element 750, presents a streamlined, low-snag profile.

In some implementations, the substrates 722, 752 can be configured with micro-perforations to improve breathability and moisture vapor transmission along the scalp interface while preserving structural integrity for stitching, adhesive bonding, and engagement. In some implementations, a field of through-holes is distributed across regions of the substrate 722, 752 not occupied by the press lock fasteners 724, 754, and the substrate end caps 728, 758. The micro-perforations may have a nominal diameter of about 0.3 mm to about 0.6 mm. The perforation lattice can be defined by a regular pitch, for example, a center-to-center spacing of about 1.5 mm to about 3.0 mm, or by a non-uniform pattern with increased density in central areas to enhance breathability and reduced density near edges and high-load features to preserve tear resistance. In some embodiments, a keep-out margin of at least about 1.0 mm to about 2.0 mm is maintained between any perforation and the footprint of the base press lock fastener 724, the attachment loops 726, and/or the attachment hooks 756.

The micro-perforations can be formed by laser drilling, mechanical pin punching, rotary die cutting, or by selecting a substrate layer inherently possessing micro-pores that meet the dimensional criteria. When laser drilling is used, process parameters may be selected to limit the heat-affected zone to about 0.1 mm or less around each perforation, thereby reducing stiffening, fray, or discoloration. For fabrics or laminates, perimeter sealing of the perforations can be achieved by localized thermal setting, ultrasonic treatment, or application of a thin elastomeric coating to inhibit fraying and to present a smooth, low-irritation surface against the scalp. Furthermore, where a base 780 includes an upper edge portion 770 with apertures 772 for sewing or suturing (as best shown in FIGS. 26A-26C), the micro-perforation field may be omitted from a band proximate to the upper edge portion 770 to ensure needle passage remains guided by the apertures 772 and to preserve the intended stitch path and load distribution. The result is a low-profile, comfortable base that reduces moisture accumulation under the substrate 722 during wear while retaining the mechanical performance required for repeated attachment and removal of the hair extension element 750.

According to some implementations, to mitigate injury under unexpected loading, an optional safety breakaway feature is implemented so that coupling between the base 720 and the hair extension element 750 releases at a peak load between about 35 N and about 50 N.

Referring now to FIGS. 25A-25G, a method of installing the hair extension system 700 employing the base 720 with the base press lock fastener 724 and the complementary hair extension element 750 with the extension press lock fastener 754 is illustrated according to some implementations of the present disclosure.

FIG. 25A illustrates the preparation of a scalp base 880 by forming a hair part 882 along a desired path on the head of a user. The hair part 882 defines an attachment corridor through which the base 720 is to be positioned and secured. In some implementations, the hair part 882 extends generally between the user's temples or along a region selected by the technician to optimize coverage, comfort, and blending with the user's natural hair.

FIG. 25B shows the base 720 being positioned along the hair part 882 and coupled to the user. As illustrated, the base 720 includes the substrate 722 configured to be secured to the user, and the hair bonding layer 732 disposed on the user-facing side 721 of the substrate 722. The hair bonding layer 732 is configured to interface with and bond to strands of the user's natural hair exposed along the hair part 882, thereby stabilizing the base 720 relative to the scalp base 880.

FIG. 25C depicts the base 720 in an attached state along the hair part 882. In this configuration, the attachment hooks 726 and the base press lock fastener 724 of the base 720 face away from the user and are presented for engagement with the hair extension element 750. In particular, the attachment loop 726 at each end of the base 720 and the base press lock fastener 724 along the length of the substrate 722 are oriented outwardly to receive the corresponding attachment hooks 756 and the extension press lock fastener 754 of the hair extension element 750, respectively. This arrangement facilitates provisional end alignment via the attachment loop 726 and final, elongated engagement via the interleaving protrusions 727, 757 of the press lock fasteners 724, 754.

FIG. 25D illustrates a preparation step in which a portion of the user's natural hair located below and attached to the base 720 is lifted and brought up and over the top of the head to form a second hair part 884. The lifting action creates a temporary overlying curtain of hair that covers the base 720, while the base 720 is shown flipped up (e.g., rotated axially away from the scalp) to expose an underside region. This maneuver temporarily conceals the base 720 during installation of the hair extension system 700 and exposes a section of hair that will serve as a backer for the base 720 after bonding, as described below.

FIG. 25E shows application of an optional bonding layer 804 to the hair that has been brought over the top of the head and is held in the second hair part 884, while the base 720 remains flipped up as described with reference to FIG. 25D above. The bonding layer 804 is applied onto the exposed hair surface to form a stabilizing backer to the base 720. In this configuration, when the base 720 is returned from its flipped-up position, the hair bearing the bonding layer 804 and the base 720 function together to sandwich a portion of the user's hair between the backer (the bonding layer 804) and the user-facing side 721 of the base 720. This sandwiching increases the stability of the base 720, distributes loading during daily wear, and promotes a discreet, low-profile interface under the user's natural hair.

FIG. 25F illustrates the step following application of the bonding layer 804. The hair that formed the second hair part 884 is brought back down to its general resting direction over the base 720, thus returning the base 720 to the orientation shown previously with reference to FIG. 25C. The hair extension element 750 is then applied to the outward-facing side of the base 720. During this step, the attachment hook 756 of the hair extension element 750 adjacent to the right ear of the user (hidden) is engaged with the attachment loop 726 (hidden) of the base 720 to provisionally suspend and align the hair extension element 750, while the extension press lock fastener 754 is brought into registry with the base press lock fastener 724.

FIG. 25G shows the hair extension element 750 fully attached to the base 720 via the attachment hooks 756 and extension press lock fastener 754. In the assembled configuration, the attachment hooks 756 of the hair extension element 750 are engaged with the attachment loops 726 of the base 720 to provide endwise stabilization, and the base press lock fastener 724 and the extension press lock fastener 754 are pressed together so that the protrusions 727 of the base press lock fastener 724 interleave with and press fit between the protrusions 757 of the extension press lock fastener 754 along their lengths. Enlarged cross-sectional views included in FIG. 25G further illustrate the end engagement between the attachment loops 726 and the attachment hooks 756, and the elongated interleaving engagement between the base press lock fastener 724 and the extension press lock fastener 754 with the protrusions 727, 757 in a locked, worn configuration. In the final arrangement, as shown in FIG. 25H, the extension hair 759 carried by the hair extension element 750 blends naturally with the user's hair.

Referring now to FIGS. 26A-26C, according to some implementations of the present disclosure, a hair extension base 780 or the base 780 is illustrated. The hair extension base 780 of FIGS. 26A-26C is similar to the hair extension base 720 shown and described with respect to FIGS. 22A-22C, respectively, except for inclusion of an upper edge portion 770 with the apertures 772 of the substrate 722. The upper edge portion 770 with the apertures 772 aids in facilitating sewing of the base 780 to a user for a permanent or semi-permanent installation. In some implementations the base 780 is stitched directly to a scalp base (e.g., scalp base 280 of FIG. 7), in the same, or similar, manner as previously described with respect to FIG. 8. In some implementations, the base 780 is stitches to a hair base (e.g., hair base 180 of FIG. 2A), in the same, or similar, manner as previously described with respect to FIGS. 2A-2C.

The substrate 722 includes the upper edge portion 770 that has the plurality of apertures 772 therein. The upper edge portion 770 is sized and shaped to extend slightly past top edges of corresponding layers, such as a top edge 792 of the base bonding layer 730, a top edge 794 of the base press lock fastener 724, and respective top edges 796 of the substrate end caps 728. The upper edge portion 770 is positioned to permit one or more stitches to pass through the apertures 772 to couple the base 780 to the scalp base 280 (e.g., by suturing or sewing), enabling a permanent or semi-permanent installation as appropriate for the user and use case and as similarly described with reference to FIG. 8. In some implementations, the upper edge portion 770 extends beyond top edges of corresponding layers of the base 780 by about 1 mm, 2 mm, 5 mm, or 10 mm.

As noted above and in connection with FIG. 8, the apertures 772 of the upper edge portion 770 permit the base 720 to be sewn to the scalp base 280 and/or to natural hair using (e.g., via hair base 180) thread or suture material in the same or a similar manner as previously described. Stitch patterns (e.g., vertical stitches along a top edge region, localized end stitches, or other patterns) and spacing can be selected based on weight of the attached hair extension element, hair density/quality, activity level, and desired wear duration.

As best shown in FIG. 26C, the apertures 772 extend through and between the user-facing side of the substrate 722 and a hair-extension side 719 away from the user of the substrate 722. Although FIGS. 26A-26C are illustrated with reference to the base 780, the same or similar sewing/stitching techniques enabled by the upper edge portion 770 with the apertures 772 are suitable to couple any base described herein to the scalp base 280 of a user (similarly as described with respect to FIG. 8), the hair base 180 of the user (similarly as describe with respect to FIG. 2), or the base 620 (similarly as described with respect to FIG. 11).

In some implementations, the upper edge portion 770 includes the apertures 772 configured to receive thread, suture, or other coupling media to secure the base 720 to a scalp base 280 and/or to natural hair. The apertures 772 may be formed by weaving, knitting, punching, laser-cutting, molding, or any combination thereof, and may be arranged, sized, and reinforced to balance conformability, durability, and load distribution during daily wear.

In some implementations, some or all of the apertures 772 are reinforced to enhance tear resistance and to maintain aperture shape during stitching. Reinforcement can include metal or polymer grommets, eyelets, or bushings that are crimped, swaged, heat-set, ultrasonically welded, or adhesively bonded to the upper edge portion 770 around the perimeters of the apertures 772. In other implementations, the reinforcement is provided by stitched or bar-tacked buttonhole finishes applied to selected one or more of the apertures 772, by local overmolding of a thin polymer ring around the aperture 772, or by lamination of a secondary reinforcement tape or patch on one or both faces of the upper edge portion 770 surrounding the aperture 772. These reinforcements help resist fraying, distribute tensile loads from stitches into the mesh body, and promote smooth passage of thread or sutures to reduce abrasion and snagging.

In some implementations, the apertures 772 are arranged linearly across the upper edge portion 770. For example, a single row of the apertures 772 is placed along the upper edge portion 770 of the base 720 at a substantially constant offset from a top edge of the upper edge portion 770 to guide stitch placement and provide a consistent stitch line that distributes load uniformly along the coupling interface. In some implementations, two or more parallel linear rows are provided to allow the installer to select an inner or outer stitch line based on desired permanence, hair density, or comfort considerations.

In some implementations, the apertures 772 are arranged in a zig-zag pattern to increase stitch path length and improve load dispersion through the upper edge portion 770. By way of example, a first aperture 772 is positioned toward the bottom of the upper edge portion 770, a second adjacent aperture 772 is positioned about midway between the top and bottom of the upper edge portion 770, a third adjacent aperture 772 is positioned toward the top of the upper edge portion 770, and the sequence repeats along the length of the base 720. This alternating bottom-middle-top progression creates a serpentine suture path that resists localized tearing and distributes tensile forces over a broader area while maintaining a thin profile suitable for concealment under natural hair.

In some implementations, the spacing between adjacent apertures 772 is selected according to anticipated loads, user activity level, and hair density, and can be about 1 mm, 2 mm, 5 mm, or 10 mm. In certain embodiments, tighter spacing (e.g., about 1-2 mm) is used in end regions or other high-load zones near coupling features (e.g., adjacent attachment loops 726/end caps 728) to increase stitch density and endwise stability, whereas wider spacing (e.g., about 5-10 mm) is used along central regions to preserve flexibility and reduce bulk. In other embodiments, spacing is non-uniform, with localized clusters of the closely spaced reinforced apertures 772 interspersed with the more widely spaced apertures 772 to tailor compliance and retention along the length of the base 720.

In some implementations, aperture placement is coordinated with other base features to avoid interference and preserve a streamlined profile. For example, linear or zig-zag rows of apertures 772 may be positioned below a top edge of the upper edge portion 770 of the substrate 722 and outside the footprint of the base press lock fastener 724 and the substrate end caps 728 to ensure stitches do not impinge on mating components during engagement with the hair extension element 750. In other implementations, selected reinforced apertures 772 are color-coded or marked to indicate recommended stitch patterns or to distinguish between semi-permanent and permanent attachment options.

In some implementations, the apertures 772 are dimensioned and finished to accommodate a range of suture and thread types, including absorbable and non-absorbable sutures, and textile threads (e.g., thread 124). The reinforced grommet or eyelet finish presents a low-friction, radiused interface configured to facilitate needle passage and to reduce wear on the suture material over time. Where used with medical sutures for direct scalp stitching to the scalp base 280, the reinforcement can be selected from biocompatible materials appropriate for extended skin contact and repeated hygiene cycles.

In some implementations, the upper edge portion 770 of the substrate 722 does not include the plurality of pre-formed apertures 772. In these configurations, the substrate 722 may be constructed from a material that is readily pierceable at the time of installation, such as natural leather, synthetic leather (e.g., vinyl leather), or a suitable fabric. These materials are selected for their ability to be easily penetrated by a needle, suture, or thread during the attachment process, thereby eliminating the need for pre-existing holes or apertures along the upper edge portion 770.

When the upper edge portion 770 is formed without apertures, the installer or technician can create stitch or suture passages as needed during the installation procedure. For example, when securing the base 720 to a hair base (e.g., the hair base 180), directly to a scalp base (e.g., the scalp base 280) of the user, or to a dermal base (e.g., the base 620) the installer may use a needle to pierce through the upper edge portion 770 at desired locations, forming custom stitch points that accommodate the specific requirements of the user's hair density, scalp condition, or desired attachment pattern. This approach provides flexibility in stitch placement, allowing for variable spacing, orientation, and density of stitches according to the unique anatomical and aesthetic needs of each user.

Alternative Implementations

Implementation 1. A method comprising: coupling a substrate to a scalp of a user; and coupling a hair extension element to the substrate.

Implementation 2. The method of Implementation 1, wherein the substrate is permanently, semi-permanently, or temporarily coupled to the scalp of the user.

Implementation 3. The method of Implementation 1, wherein the coupling of the substrate to the scalp of the user includes using adhesive, one or more strips of tape, one or more hair beads, one or more clips, one or more non-dissolving threads, one or more dissolving threads, or any combination thereof.

Implementation 4. The method of Implementation 1, wherein the coupling of the substrate to the scalp of the user includes stitching, using one or more sutures, the substrate directly to the scalp of the user.

Implementation 5. The method of Implementation 1, wherein the coupling of the substrate to the scalp of the user includes sewing, using a thread, the substrate directly to a hair base.

Implementation 6. The method of Implementation 5, wherein the hair base is formed using natural hair of the user.

Implementation 7. The method of Implementation 6, wherein the hair base is further formed using a plurality of hair beads.

Implementation 8. The method of Implementation 1, wherein the substrate is a flexible sheet of material with a plurality of apertures therethrough.

Implementation 9. The method of Implementation 8, wherein the flexible sheet of material with the plurality of apertures therethrough forms a mesh.

Implementation 10. The method of Implementation 1, wherein the coupling of the hair extension element to the substrate includes removably coupling a first coupling mechanism that is fixed to the substrate to a second coupling mechanism that is fixed to the hair extension element.

Implementation 11. The method of Implementation 10, wherein the first coupling mechanism includes a first zipper portion and the second coupling mechanism includes a second zipper portion configured to be removably coupled to the first zipper portion.

Implementation 12. The method of Implementation 11, wherein the first zipper portion includes a first magnetic element, the second zipper portion includes a second magnetic element, and wherein the first magnetic element and the second magnetic element are configured to facilitate alignment of the first zipper portion with the second zipper portion when coupling the first zipper portion with the second zipper portion.

Implementation 13. The method of Implementation 10, wherein the first coupling mechanism includes a first interlocking mechanism and the second coupling mechanism includes a second interlocking mechanism configured to be removably coupled to the first interlocking mechanism.

Implementation 14. The method of Implementation 13, further comprising removably coupling a first additional coupling mechanism that is fixed to a first end portion of the substrate to a second additional coupling mechanism that is fixed to a first end portion of the hair extension element.

Implementation 15. The method of Implementation 10, wherein the first coupling mechanism includes a first elongated and flexible magnetic element and the second coupling mechanism includes a second elongated and flexible magnetic element configured to be removably coupled to the first elongated and flexible magnetic element.

Implementation 16. The method of Implementation 15, wherein the substrate includes a first alignment element and the hair extension element includes a second alignment element, wherein the first alignment element and the second alignment element are configured to facilitate alignment of corresponding ends of the first elongated and flexible magnetic element and the second elongated and flexible magnetic element when coupling the first elongated and flexible magnetic element with the second elongated and flexible magnetic element.

Implementation 17. The method of Implementation 9, wherein the coupling of the substrate to the scalp of the user includes stitching the mesh to the scalp of the user along a hair part line formed in the natural hair of the user.

Implementation 18. The method of Implementation 17, wherein the mesh has a top edge, a bottom edge, a first end portion, and a second opposing end portion, and wherein the stitching of the mesh to the scalp of the user includes making one or more vertical sutures along the top edge of the mesh between the first end portion and the second end portion.

Implementation 19. The method of Implementation 18, wherein the stitching the mesh to the scalp of the user further includes (i) making a first vertical stitch at the top edge of the first end portion, (ii) making a second vertical stitch at the bottom edge of the first end portion, (iii) making a third vertical stitch at the top edge of the second end portion, and (iv) making a fourth vertical stitch at the bottom edge of the second end portion.

Implementation 20. The method of Implementation 18, wherein the vertical stitches along the top edge of the mesh between the first end portion and the second end portion include an equidistant spacing between respective vertical stitches.

Implementation 21. The method of Implementation 20, wherein the equidistant spacing between respective vertical stitches is between ⅛ inch to 1 inch.

Implementation 22. The method of Implementation 1, wherein the coupling of the hair extension element to the substrate includes bonding the hair extension element to the substrate after the coupling of the substrate to the scalp of the user.

Implementation 23. The method of Implementation 22, wherein the bonding includes sewing, stitching, adhesive, melting, or any combination thereof.

Implementation 24. A hair extension system comprising: a substrate configured to be coupled to a scalp of a user; and a hair extension element configured to be coupled to the substrate.

Implementation 25. The system of Implementation 24, wherein the substrate is permanently, semi-permanently, or temporarily coupled to the scalp of the user.

Implementation 26. The system of Implementation 24, wherein the substrate is coupled to the scalp of the user by an adhesive, one or more strips of tape, one or more hair beads, one or more clips, one or more non-dissolving threads, one or more dissolving threads, or any combinations thereof.

Implementation 27. The system of Implementation 24, wherein the substrate is configured to be stitched, using one or more sutures, directly to the scalp of the user.

Implementation 28. The system of Implementation 24, wherein the coupling of the substrate to the scalp of the user includes sewing, using a thread, the substrate directly to a hair base.

Implementation 29. The system of Implementation 28, wherein the hair base is formed using natural hair of the user.

Implementation 30. The system of Implementation 29, wherein the hair base is further formed using a plurality of hair beads.

Implementation 31. The system of Implementation 24, wherein the substrate is a flexible sheet of material with a plurality of apertures therethrough.

Implementation 32. The system of Implementation 31, wherein the flexible sheet of material with the plurality of apertures therethrough forms a mesh.

Implementation 33. The system of Implementation 24, wherein the substrate includes a first coupling mechanism that is fixed to the substrate, the hair extension element includes a second coupling mechanism that is fixed to the hair extension element, and the first coupling mechanism is configured to be removably coupled to the second coupling mechanism.

Implementation 34. The system of Implementation 33, wherein the first coupling mechanism includes a first zipper portion and the second coupling mechanism includes a second zipper portion configured to be removably coupled to the first zipper portion.

Implementation 35. The system of Implementation 34, wherein the first zipper portion includes a first magnetic element, the second zipper portion includes a second magnetic element, and wherein the first magnetic element and the second magnetic element are configured to facilitate alignment of the first zipper portion with the second zipper portion when coupling the first zipper portion with the second zipper portion.

Implementation 36. The system of Implementation 33, wherein the first coupling mechanism includes a first interlocking mechanism and the second coupling mechanism includes a second interlocking mechanism configured to be removably coupled to the first interlocking mechanism.

Implementation 37. The system of Implementation 27, wherein the substrate includes a first additional coupling mechanism that is fixed to a first end portion of the substrate, the hair extension element includes a second additional coupling mechanism that is fixed to a first end portion of the hair extension element, wherein the first additional coupling mechanism is configured to be removably coupled to the second additional coupling mechanism.

Implementation 38. The system of Implementation 33, wherein the first coupling mechanism includes a first elongated and flexible magnetic element and the second coupling mechanism includes a second elongated and flexible magnetic element configured to be removably coupled to the first elongated and flexible magnetic element.

Implementation 39. The system of Implementation 38, wherein the substrate includes a first alignment element and the hair extension element includes a second alignment element, wherein the first alignment element and the second alignment element are configured to facilitate alignment of corresponding ends of the first elongated and flexible magnetic element and the second elongated and flexible magnetic element when coupling the first elongated and flexible magnetic element with the second elongated and flexible magnetic element.

Implementation 40. The system of Implementation 32, further comprising suture material for use in coupling the substrate to the scalp of the user along a hair part line formed in the natural hair of the user.

Implementation 41. The system of Implementation 40, further comprising thread material for use in coupling the hair extension element to the substrate.

Implementation 42. The system of Implementation 24, wherein the hair extension is bonded to the substrate.

Implementation 43. The system of Implementation 42, wherein the bond is formed using sewing, stitching, adhesive, or any combination thereof.

Implementation 44. A hair extension system comprising: a foundation including: a plurality of implants configured to be positioned about a head of a user; and a wire coupled to each of the plurality of implants; and a hair extension coupled to the foundation.

Implementation 45. The system of Implementation 44, wherein each of the plurality of implants includes a base, a post, and a cap.

Implementation 46. The system of Implementation 45, wherein the base is configured to be implanted below skin of the user and the post is configured to at least partially protrude from the skin of the user.

Implementation 47. The system of Implementation 46, wherein the post includes a throughbore configured to permit the wire to pass therethrough.

Implementation 48. The system of Implementation 47, wherein the cap is configured to be removably coupled to the post to aid in preventing the wire from moving relative to the post.

Implementation 49. The system of Implementation 45, wherein the post extends from a first surface of the base and a second opposing surface of the base is smooth, roughened, includes a porous coating, or any combination thereof.

Implementation 50. The system of Implementation 45, wherein the post extends from a first surface of the base and a fastener extends from a second opposing surface of the base, the fastener being configured to aid in securing the implant to a skull of the user.

Implementation 51. The system of Implementation 44, wherein the hair extension is sown to the foundation using one or more threads.

Implementation 52. The system of Implementation 45, wherein the plurality of implants includes two corner implants and one or more central implants, and wherein each of the corner implants further includes a corner flap.

Implementation 53. The system of Implementation 52, wherein corner flap is pivotably coupled to the post.

Implementation 54. The system of Implementation 52, wherein corner flap is fixedly coupled to the post.

Implementation 55. The system of Implementation 52, wherein corner flap is pivotably coupled to the post such that when the cap is removably coupled to the post, the cap aids in biasing the corner flap towards a scalp of the user.

Implementation 56. A hair extension system comprising: a foundation including: a first implant configured to be positioned adjacent to a first ear of a user; a second implant configured to be positioned adjacent to a second ear of the user; a loop piercing configured to be positioned between the first implant and the second implant; and a wire coupled to the first implant, the second implant, and the loop piercing; and a hair extension coupled to the foundation.

Implementation 57. The system of Implementation 56, wherein the first implant includes a first base, a first post, and a first cap, the second implant includes a second base, a second post, and a second cap.

Implementation 58. The system of Implementation 57, wherein the first base is configured to be implanted below skin of the user such that the first post is configured to at least partially protrude from the skin of the user, and wherein the second base is configured to be implanted below skin of the user such that the second post is configured to at least partially protrude from the skin of the user, and wherein the loop piercing is configured to be coupled to the skin of the user such that a first portion of the loop piercing is below the skin of the user and a second portion of the loop piercing is outside the user.

Implementation 59. The system of Implementation 58, wherein the loop piercing and the skin of the user form a throughbore configured to permit the wire to pass therethrough.

Implementation 60. The system of Implementation 57, wherein the first implant includes a first corner flap and the second implant includes a second corner flap.

Implementation 61. The system of Implementation 60, wherein the first corner flap is pivotably coupled to the first post the second corner flap is pivotably coupled to the second post.

Implementation 62. The system of Implementation 60, wherein the first corner flap is pivotably coupled to the first post such that when the first cap is removably coupled to the first post, the first cap aids in biasing the first corner flap towards a scalp of the user, and wherein the second corner flap is pivotably coupled to the second post such that when the second cap is removably coupled to the second post, the second cap aids in biasing the second corner flap towards the scalp of the user.

Implementation 63. A hair extension system comprising: a foundation configured to be coupled about a portion of a head of a user, the foundation including: a first substrate with a first surface that is configured to face the head of the user and a second opposing surface; and a first portion of an interlocking mechanism protruding from the second opposing surface of the first substrate; and a hair extension configured to be removably coupled to the foundation, the hair extension including: extension hair bundled together; a second substrate with a first surface that is configured to face the extension hair and a second opposing surface; and a second portion of the interlocking mechanism protruding from the second opposing surface of the second substrate.

Implementation 64. The system of Implementation 63, wherein the foundation is configured to be taped to hair of the user to aid in maintaining a connection of the foundation with the head of the user.

Implementation 65. The system of Implementation 63, wherein the foundation is configured to be sewn to hair of the user to aid in maintaining a connection of the foundation with the head of the user.

Implementation 66. The system of Implementation 63, wherein the foundation is configured to be attached to one or more implants in the head of the user.

Implementation 67. The system of Implementation 63, wherein the foundation is configured to be attached to one or more loop piercings coupled to the head of the user.

Implementation 68. A hair extension system comprising: a foundation configured to be coupled about a portion of a head of a user, the foundation including: a first substrate; and a first portion of a zipper mechanism coupled to the first substrate; and a hair extension configured to be removably coupled to the foundation, the hair extension including: a second substrate; extension hair bundled together and coupled to the second substrate; and a second portion of the zipper mechanism coupled to the second substrate.

Implementation 69. The system of Implementation 68, wherein the foundation is configured to be taped to hair of the user to aid in maintaining a connection of the foundation with the head of the user.

Implementation 70. The system of Implementation 68, wherein the foundation is configured to be sewn to hair of the user to aid in maintaining a connection of the foundation with the head of the user.

Implementation 71. The system of Implementation 68, wherein the foundation is configured to be attached to one or more implants in the head of the user.

Implementation 72. The system of Implementation 68, wherein the foundation is configured to be attached to one or more loop piercings coupled to the head of the user.

Implementation 73. The system of Implementation 68, wherein the zipper mechanism includes a zipper pull configured to aid in securing the second portion of the zipper mechanism to the first portion of the zipper mechanism, thereby coupling the hair extension to the foundation.

Implementation 74. The system of Implementation 73, further comprising a bundle of hair coupled to the zipper pull to aid in camouflaging the zipper pull when hanging relative to the extension hair.

Implementation 75. The system of Implementation 73, wherein the zipper pull is removably coupled to the second portion of the zipper mechanism or the first portion of the zipper mechanism, thereby permitting the zipper pull to be decoupled from the foundation and the hair extension when the second portion of the zipper mechanism is secured to the first portion of the zipper mechanism.

Implementation 76. The system of Implementation 68, wherein the zipper mechanism includes metal zipper teeth, plastic zipper teeth, or a combination thereof.

Implementation 77. An end clip configured to be used in a hair extension system, the end clip comprising: abase having a first portion and a second portion with a necked portion between the first portion and the second portion; and a plurality of fingers extending from the second portion of the base.

Implementation 78. The end clip of Implementation 77, wherein the base includes a first aperture in the first portion of the base and second aperture in the second portion of the base.

Implementation 79. The end clip of Implementation 78, wherein the base is configured to be folded at the necked portion such that the first aperture aligns with the second aperture.

Implementation 80. The end clip of Implementation 79, wherein a first surface of the base is coated with silicone.

Implementation 81. A hair extension system comprising: a base configured to be coupled to a scalp of a user, the base including: a base substrate having a first base end portion, an opposing second base end portion, and a central base portion extending from the first base end portion to the second base end portion; a first base end coupling mechanism fixed to the first base end portion of the base substrate; a second base end coupling mechanism fixed to the second base end portion of the base substrate; and a first press lock fastener fixed along a length of the central base portion of the base substrate; and a hair extension element configured to be coupled to the base, the hair extension element including: an extension substrate having a first extension end portion, an opposing second extension end portion, and a central extension portion extending from the first extension end portion to the second extension end portion; a first extension end coupling mechanism fixed to the first extension end portion of the extension substrate, the first extension end coupling mechanism being configured to be coupled to the first base end coupling mechanism to aid in securing the first extension end portion of the extension substrate to the first base end portion of the base substrate; a second extension end coupling mechanism fixed to the second opposing extension end portion of the extension substrate, the second extension end coupling mechanism being configured to be coupled to the second base end coupling mechanism to aid in securing the second extension end portion of the extension substrate to the second base end portion of the base substrate; and a second press lock fastener fixed along a length of the central extension portion of the extension substrate, the second press lock fastener being configured to be coupled to the first press lock fastener to aid in securing the central extension portion of the extension substrate to the central base portion of the base substrate.

Implementation 82. The hair extension system of implementation 81, wherein the first base end coupling mechanism includes a first attachment loop, the second base end coupling mechanism includes a second attachment loop, the first extension end coupling mechanism include a first attachment hook, and the second extension end coupling mechanism includes a second attachment hook, the first attachment hook being configured to engage the first attachment loop and the second attachment hook being configured to engage the second attachment loop.

Implementation 83. The hair extension system of implementation 81, wherein the first press lock fastener includes a first plurality of protrusions and the second press lock fastener includes a second plurality of protrusions, the second plurality of protrusions being configured to interleave in a press-fit with corresponding protrusions of the first plurality of protrusions.

Implementation 84. The hair extension system of implementation 83, wherein the first elongated coupling mechanism includes a void between each of the first plurality of protrusions, the second elongated coupling mechanism includes a void between each of the second plurality of protrusions, the voids being configured to receive corresponding protrusions of the first and second elongated coupling mechanisms.

Implementation 85. The hair extension system of implementation 83, wherein the first plurality of protrusions and the second plurality of protrusions are patterned in a regular pitch in rows and columns to allow interleaving when the first plurality of protrusions are offset in pitch by at least one row or column with respect to the second plurality of protrusions.

Implementation 86. The hair extension system of implementation 83, wherein protrusions of at least one of the first elongated coupling mechanism and the second elongated coupling mechanism includes a tapered or chamfered lead-in surface, the tapered or chamfered lead-in surface being configured to self-center the first elongated coupling mechanism with respect to the second elongated coupling mechanism during engagement.

Implementation 87. The hair extension system of implementation 81, further including a first base substrate end cap fitted over the first base end portion, the first base substrate end cap including a slot through which a portion of the first base end coupling mechanism protrudes, and a second base substrate end cap fitted over the second base end portion, the second base substrate end cap including a slot through which a portion of the second base end coupling mechanism protrudes.

Implementation 88. The hair extension system of implementation 87, wherein each slot includes a channel shaped to stabilize a respective one of the first base end coupling mechanism and the second base end coupling mechanism against rotational and lateral movement.

Implementation 89. The hair extension system of implementation 81, further including a first extension substrate end cap fitted over the first extension end portion, the first extension substrate end cap including a slot through which a portion of the first extension end coupling mechanism protrudes, and a second extension substrate end cap fitted over the second extension end portion, the second extension substrate end cap including a slot through which a portion of the second extension end coupling mechanism protrudes.

Implementation 90. The hair extension system of implementation 89, wherein each slot includes a channel shaped to stabilize a respective one of the first extension end coupling mechanism and the second extension end coupling mechanism against rotational and lateral movement.

Implementation 91. The hair extension system of implementation 81, wherein a user-facing side of the base substrate includes a hair bonding layer configured to adhere the base to hair strands of the user.

Implementation 92. The hair extension system of implementation 91, wherein the hair bonding layer is a silicone-based adhesive, an acrylic pressure-sensitive adhesive, a polyurethane pressure-sensitive adhesives, double-sided medical tape, or any combination thereof.

Implementation 93. The hair extension system of implementation 81, wherein the base substrate includes a mesh layer having apertures configured to receive stitches or sutures to permanently or semi-permanently couple the base to a scalp base of the user.

Implementation 94. The hair extension system of implementation 93, wherein the apertures of the mesh layer are distributed along a top edge region of the base substrate at a selected spacing to accommodate stitch, suture, or thread placement.

Implementation 95. The hair extension system of implementation 87, wherein each of the first base substrate end cap and the second base substrate end cap are dimensioned such that an exterior-facing surface of the first base substrate end cap is flush with adjacent surfaces of the base substrate and an exterior-facing surface of the second base substrate end cap is flush with adjacent surfaces of the base substrate.

Implementation 96. The hair extension system of implementation 89, wherein each of the first extension substrate end cap and the second extension substrate end cap are dimensioned such that a user-facing surface of the first extension substrate end cap is flush with adjacent surfaces of the base substrate and a user-facing surface of the second extension substrate end cap is flush with adjacent surfaces of the base substrate.

Implementation 97. The hair extension system of implementation 83, wherein the first press lock fastener includes a void geometry matched to a protrusion geometry of second press lock fastener to facilitate engagement of the first press lock fastener with the second press lock fastener.

Implementation 98. The hair extension system of implementation 81, wherein the base is configured to be stitched, using one or more sutures, directly to the scalp of the user.

Implementation 99. The hair extension system of implementation 81, wherein the base is configured to be coupled indirectly to the scalp of the user via a hair base formed using natural hair of the user.

Implementation 100. The hair extension system of implementation 81, wherein the base is configured to be coupled to the scalp of the user using adhesive, one or more strips of tape, one or more hair beads, one or more clips, one or more non-dissolving threads, one or more dissolving threads, or any combination thereof.

One or more elements or aspects or steps, or any portion(s) thereof, from one or more of any of the above implementations and/or below claims can be combined with one or more elements or aspects or steps, or any portion(s) thereof, from one or more of any of the other above implementations and/or below claims or combinations thereof, to form one or more additional implementations and/or claims of the present disclosure.

While the present disclosure has been described with reference to one or more particular implementations, those skilled in the art will recognize that many changes may be made thereto without departing from the spirit and scope of the present disclosure. Each of these implementations and obvious variations thereof is contemplated as falling within the spirit and scope of the present disclosure. It is also contemplated that additional implementations according to aspects of the present disclosure may combine any number of features from any of the implementations described herein.