A staple cartridge for use with a surgical instrument is disclosed. The staple cartridge comprises a cartridge body comprising a tissue-supporting surface, a staple cavity defined within the cartridge body, a staple removably positioned in the staple cavity, and a staple driver movably positioned within the staple cavity, wherein the staple driver is configured to support the staple. The staple cartridge further comprises a wedge sled translatable between a proximal end and a distal end of the staple cartridge, wherein the wedge sled is configured to move the staple driver from an unfired position to a fired position during a staple firing stroke, and a driver retention member configured to retain the staple driver in a retention position that allows for the wedge sled to be retracted after the staple firing stroke.

A surgical stapler is disclosed herein. The surgical stapler comprises a body having a distal end and a proximal end, and the body defines an interior space. A first knob and a second knob are configured adjacent the proximal end of the body. An anvil and trocar assembly is configured adjacent the distal end of the surgical stapler, wherein the anvil and trocar assembly is coupled to the first knob, and the first knob is configured to facilitate the extension and retraction of the anvil and trocar assembly at the distal end of the body. A staple and knife assembly is configured adjacent the anvil and trocar assembly within the body, wherein the staple and knife assembly is coupled to the second knob, and wherein the second knob is configured to facilitate firing of staples and actuation of a knife of the staple and knife assembly sequentially.

An end effector of a surgical stapling apparatus includes an anvil buttress and an anvil assembly. The anvil buttress has a proximal end portion including a strap. The anvil assembly includes an anvil body having a proximal end portion and a distal end portion. The proximal end portion has a tissue stop configured to prevent proximal tissue migration. The tissue stop includes a strap lock. The strap lock is configured to secure the strap of the anvil buttress to the anvil assembly to secure the anvil buttress to the anvil assembly.

A stapling device includes a handle assembly, an adaptor assembly extending from the handle assembly, and a reload assembly supported on a distal end portion of the adaptor assembly. The reload assembly includes a shell housing, a staple cartridge, a first seal, a staple actuator, and a knife carrier. The first seal is disposed within a cavity of the shell housing and defines a staple actuator opening and a knife carrier opening. The staple actuator includes a proximal leg extending proximally therefrom and through the staple actuator opening of the first seal to provide a fluid seal therebetween. The knife carrier includes a proximal body portion extending proximally therefrom and through the knife carrier opening of the first seal to provide a fluid seal therebetween.

A surgical instrument is disclosed comprising an end effector including a first jaw and a second jaw, wherein the first jaw is rotatable relative to the second jaw, and a closure system configured to close the first jaw during a closure stroke. The surgical instrument further comprises an articulation joint rotatably connecting the end effector to the shaft, an articulation system configured to articulate the end effector relative to the shaft, and a firing system operably engaged with the electric motor, wherein the firing member is configured to move through the end effector during a firing stroke. The surgical instrument further comprises a first rotatable member configured to selectively synchronize the motion of the firing system with the motion of the articulation system and a second rotatable member operably engageable with the articulation system, wherein the closure system is configured to stop the rotation of the second rotatable member.

A surgical device includes a handle assembly having: a power source, a motor coupled to the power source, and a controller configured to control the motor. The device also includes an adapter assembly configured to selectively couple to the handle assembly. The adapter assembly includes a clamping transmission assembly movable by the motor. The device also includes a reload configured to selectively couple to a distal portion of the adapter assembly, the reload including a plurality of staples ejectable from the reload. The device further includes an anvil assembly selectively couplable to the distal portion of the adapter assembly and movable relative to the reload. The controller is further configured to control the motor to move the clamping transmission assembly to move the anvil assembly from a distal clamp position to a proximal clamp position and then distally from the proximal clamp position to reduce clamp force.

A surgical stapling device includes cartridge assembly having a replaceable staple cartridge. The replaceable staple cartridge includes a knife having a cutting blade that is movable between a shielded position and an exposed position in response to advancement of a drive assembly of the stapling device. In aspects of the disclosure, the knife is pivotably coupled to an actuation sled of the cartridge assembly and is biased by a resilient finger on the actuation sled to move the cutting blade to the shielded position.

A surgical cutting and fastening instrument comprises an end effector that has a shaft coupled thereto that is coupled to a robotic system. A tool mounting portion includes an electric, DC motor connected to a drive train in the shaft for powering the drive train. A power pack that comprises at least one charge-accumulating device connected to the DC motor for powering the DC motor is provided.

A loading unit for use with a surgical instrument includes a body configured for coupling to a surgical instrument and defining a longitudinal axis and having proximal and distal ends, and an end effector coupled to the distal end of the body. The end effector includes a staple cartridge assembly having a staple cartridge and an anvil assembly having an anvil plate. A drive assembly is at least partially disposed within the body. The drive assembly includes an actuator member having a roller engageable with at least one of the staple cartridge assembly or the anvil assembly. The roller is configured to rotate upon longitudinal movement of the drive assembly to facilitate movement of the drive assembly and relative movement of the staple cartridge assembly and the anvil assembly between open and approximated conditions.

Surgical stapling instruments are disclosed comprising a staple cartridge, a firing member, and a cartridge lockout configured to prevent the firing member from being advanced through the staple cartridge if the staple cartridge has been already spent. The stapling instruments further comprise a lockout in the shaft that responds to the cartridge lockout blocking the firing member.