Circular surgical staplers with foldable anvil assemblies

Circular stapling instruments and anvil assemblies. The anvil assemblies may have collapsible anvil support members that may be inserted through an opening in a patient and then expanded to be attached to an anvil plate assembly that has a staple-forming surface thereon. The anvil support member is attachable to the anvil plate assembly in such a way that when the anvil assembly is coupled to the stapling head of a circular stapler, the staple-forming surface is in substantial registry with the staples supported in the stapling head. A variety of different anvil support members and anvil plate assemblies are disclosed.

Buttress assembly for use with surgical stapling device

An apparatus for joining two hollow organ sections includes a staple cartridge component, an anvil component, a knife member, a buttress mount and a buttress member. The staple cartridge component includes a plurality of surgical staples in an annular array. The anvil component is movable relative to the staple cartridge component between spaced apart and approximated positions to adjustably clamp tissue. The knife member is movable relative to the staple cartridge component. The buttress mount is concentrically disposed at least partially within the lumen of the knife member. The buttress mount includes a plurality of spokes radially extending outward and a plurality of legs detachably secured with an inner wall of the knife member. The buttress member is secured with the plurality of spokes of the buttress mount. The buttress member is concentrically aligned with the plurality of surgical staples.

Powered surgical instrument

A surgical instrument including a handle assembly, a first endoscopic portion, a motor, and a first end effector is disclosed. The first endoscopic portion is selectively connectable to a distal portion of the handle assembly and defines a longitudinal axis. The first endoscopic portion includes a housing adjacent its proximal portion and includes an actuation member. The motor is disposed in mechanical cooperation with the housing of the first endoscopic portion and is operatively connected to the actuation member for moving the actuation member substantially along the longitudinal axis. The first end effector is selectively connectable to a distal portion of the first endoscopic portion and is configured to perform a first stapling function.

Surgical instrument

A surgical stapling apparatus for progressively stapling and forming an incision in body tissue is provided. The apparatus includes a body portion and a tool assembly supported on the body portion. The apparatus further includes an input cam member slidable within the body portion, a drum member rotatably supported within the body portion, and an output cam member slidable within the body portion. The drum member is coupled to the input cam member such that linear movement of the input cam member effects rotatable movement of the drum member. The output cam member is coupled to the drum member such that rotatable movement of the drum member effects linear movement of the output cam member. Linear movement of the input cam member effects movement of an anvil in relation to a cartridge between unclamped and clamped positions.

In-situ loaded stapler

A stapling device is described which includes a tool assembly having an anvil assembly and a cartridge assembly movably supported in relation to the anvil assembly. The cartridge assembly includes a cartridge body defining a tissue contact surface and a plurality of retention slots which open onto the tissue contact surface. The cartridge body defines a plurality of recesses wherein each of the recesses is associated with one of the plurality of retention slots. A staple magazine is positioned within each of the recesses, and includes a plurality of staples. At least one biasing member is supported adjacent each of the recesses and is positioned to urge the staple magazine towards a respective one of the retention slots. A plurality of pushers is movably supported within the cartridge body between a lower position and a raised position. Each of the plurality of pushers is positioned to engage and eject at least one of the staples of the staple magazine from the retention slots. The at least one biasing member is positioned to obstruct movement of the pusher from the lower position to the raised position after the plurality of staples of the staple magazine have been ejected from a respective one of the retention slots.

Movable radiographing apparatus and movable radiation generating apparatus having wireless communication

A movable radiographing apparatus has a wireless communication function and includes a radiation generating unit including a radiation source, an arm portion configured to support the radiation generating unit, a support pillar configured to support the arm portion, and a moving unit configured to support the support pillar and including a GUI to be operated by the user. The movable radiographing apparatus further includes a connector unit to and from which an external antenna for wireless communication is attachable and detachable, wherein the connector unit is provided on at least one of the radiation generating unit, the arm portion, the support pillar, and the moving unit.

Healthcare transaction validation via blockchain, systems and methods

Healthcare transaction validation systems and methods are presented. Healthcare transactions associated with a stakeholder are compiled into a chain of healthcare transaction blocks. The chain can be considered a chronicle of person's healthcare path through life. When a transaction is conducted, the corresponding healthcare parameters (e.g., inputs, outputs, clinical evidence, outcomes, etc.) are sent to one or more validation devices. The devices establish a validity of the transaction and generate a new block via a proof-of-work principle. Once the new block has been calculated it can be appended to the stakeholder's health care blockchain.

Adaptor for surgical instrument for converting rotary input to linear output

An adaptor for a powered surgical instrument includes a casing, a cam drum, a first linear driver, and a second linear driver. The cam drum defines and is translatable along a longitudinal axis of the adaptor between a retracted position and an advanced position. The cam drum is being supported for rotation about the longitudinal axis. The cam drum defines first and second radial cam grooves about an outer surface thereof. The first cam groove defines a first profile and the second cam groove defines a second profile. The first linear driver includes a first cam follower disposed in the first cam groove and the second linear driver includes a second cam follower disposed in the second cam groove. The first and second linear drivers are supported for movement between advanced and retracted positions in response to rotation of the cam drum.

Devices and techniques for cutting and coagulating tissue

Various embodiments are directed to a method of driving an end effector coupled to an ultrasonic drive system of a surgical instrument. In accordance with the method, a generator is configured to generate at least one time varying electrical signal having a resonant frequency, monitor the resonant frequency of the at least one electrical signal, calculate a frequency slope between frequency data points of the time varying electrical signal, where the frequency slope is the change in resonant frequency over time, compare the frequency slope to a threshold frequency slope, and trigger a first response of the generator when the frequency slope crosses the threshold frequency slope.

Carrier channel with element concentration gradient distribution and fabrication method thereof

The present disclosure provides a carrier channel with an element concentration gradient distribution. The carrier channel includes a substrate and a carrier channel structure. The carrier channel structure is stacked on the substrate, wherein a ratio of a height and a width of the carrier channel is greater than 1, and the carrier channel is crystallized from the contact surface by a rapid melting growth process, thus the carrier channel structure has the element concentration gradient distribution.