Surgical instrument with multiple program responses during a firing motion

A surgical instrument. The surgical instrument includes an elongated channel configured to support a staple cartridge, an anvil pivotably connected to the elongated channel, a knife mechanically coupled to the staple cartridge, an electric motor and a control circuit electrically connected to the electric motor. The control circuit is configured to change a firing motion a first way based on a first value of a projected peak firing force and a second way based on a second value of the projected peak firing force value.

Surgical instrument with detection sensors

Aspects of the present disclosure are presented for a surgical instrument having one or more sensors at or a near an end effector and configured to aide in the detection of tissues and other materials and structures at a surgical site. The detections may then be used to aide in the placement of the end effector and to confirm which objects to operate on, or alternatively, to avoid. Examples of sensors include laser sensors used to employ Doppler shift principles to detect movement of objects at the surgical site, such as blood cells; resistance sensors to detect the presence of metal; monochromatic light sources that allow for different levels of absorption from different types of substances present at the surgical site, and near infrared spectrometers with small form factors.

Compressible adjunct with crossing spacer fibers

A staple cartridge assembly for use with a surgical stapling instrument includes a staple cartridge including a plurality of staples and a cartridge deck. The staple cartridge assembly also includes a compressible adjunct positionable against the cartridge deck, wherein the staples are deployable into tissue captured against the compressible adjunct, and wherein the compressible adjunct comprises a first biocompatible layer comprising a first portion, a second biocompatible layer comprising a second portion, and crossed spacer fibers extending between the first portion and the second portion.

Surgical instrument with detachable motor control unit

A surgical stapling instrument. Various embodiments include an actuation system for selectively generating a plurality of control motions. A surgical end effector is operably coupled to the actuation system. The actuation system interfaces with an actuation member configured to operably engage rotatable camming members to fire staples within the end effector into forming contact with an anvil portion of the end effector.

ROBOTICALLY-CONTROLLED END EFFECTOR

The present invention is directed to a surgical instrument with a robotics system, a memory device and an end effector having an elongate channel, knife position sensor(s) and a firing bar coupled to a knife. In response to drive motions initiated by the robotics system, the firing bar may translate within the elongate channel. As the firing bar translates, the sensor(s) transmit a signal to the memory device. The position of the knife may be determined from the output signals and may be communicated to the robotics system or instrument user. The sensors may be Hall Effect sensors.

Anvil layer attached to a proximal end of an end effector

An anvil-attachable layer for use with a surgical stapler, or fastening instrument, wherein a proximal end portion of the layer is attached to a staple cartridge assembly, for example. The layer may be attached to the staple cartridge assembly by an adhesive, weld, or a staple-cartridge-based clamp, wherein the attachment is weak enough to allow the layer to pull away from the staple cartridge assembly with stapled tissue. Alternatively, the layer can include two or more lateral slits that define a connector region that can be cut by a knife of a surgical stapler to release the layer.

Stapling assembly for forming staples to different heights

A stapling assembly comprising an anvil, a staple cartridge, and a tissue cutting knife is disclosed. The staple cartridge comprises a longitudinal slot, a first group of staple cavities, a second group of staple cavities, staple drivers, and staples. The staples comprise a first group of staples positioned in the first group of staple cavities, and a second group of staples positioned in the second group of staple cavities. The first group of staples are deformed against the anvil to a first formed height by the staple drivers during a staple firing stroke. The second group of staples are deformed against the anvil to a second formed height by the staple drivers during the staple firing stroke. The second formed height is different than the first formed height. The tissue cutting knife is movable longitudinally within the longitudinal slot to drive the staple drivers during the staple firing stroke.

End effector detention systems for surgical instruments

A surgical instrument system can comprise a surgical instrument, a first end effector, and a second end effector, wherein the end effectors are attachable to the surgical instrument. The first end effector can comprise a first set of stored data pertaining to the first end effector, wherein the surgical instrument is configured to ascertain the first set of data and enter a first operating state. The second end effector can comprise a second set of stored data pertaining to the second end effector, wherein the surgical instrument is configured to ascertain the second set of data and enter a second operating state. The surgical instrument is further configured to enter a default operating state if said surgical instrument is unable to ascertain a set of stored data from an end effector.

Surgical stapling instruments with replaceable staple cartridges

A surgical stapling instrument having a surgical end effector that includes first and second jaws that are selectively movable relative to each other. The surgical stapling instrument further includes a staple cartridge having a sled movable through said staple cartridge between an unfired position and a fired position. The sled includes a central portion configured to be received by a longitudinal slot, a first wedge-shaped cam on a first side of the central portion, and a second wedge-shaped cam on a second side of the central portion. The central portion extends distal to the first wedge-shaped cam and said second wedge-shaped cam. The surgical stapling instrument further includes a firing member configured to advance the sled from the unfired position toward the fired position during a staple firing stroke and a lockout system.

Adhesive film laminate

A surgical stapler, or fastening instrument, may generally comprise a layer, such as a tissue thickness compensator, for example, releasably attached to a fastener cartridge and/or anvil by a flowable attachment portion. The flowable attachment portion may be indefinitely flowable. The flowable attachment portion may be flowable from the time that layer is installed to the fastener cartridge to the time in which the layer is implanted to patient tissue. The flowable attachment portion may comprise a pressure sensitive adhesive. The flowable attachment portion may comprise an adhesive laminate comprising a base layer comprising the tissue thickness compensator and an adhesive layer on at least a portion of a surface of the base layer comprising the pressure sensitive adhesive. Articles of manufacture comprising flowable attachment portion and methods of making and using the flowable attachment portion are also described.