A surgical instrument can comprise a handle, a motor, and a shaft extending from the handle. The handle and/or the shaft can define a longitudinal axis. The surgical instrument can further comprise a fastener cartridge comprising a plurality of fasteners removably stored therein, an anvil configured to deform the fasteners, a closure drive configured to move the anvil toward and away from the fastener cartridge which is rotatable about the longitudinal axis, and a firing drive configured to deploy the fasteners from the fastener cartridge which is rotatable about the longitudinal axis. The surgical instrument can further comprise a transmission comprising a first operating configuration which connects the motor to the closure drive and a second operating configuration which connects the motor to the firing drive.

A surgical instrument for cutting and grasping tissue comprising a handle assembly, an elongated member and first and second jaws. A first movable member moves the second jaw in a first direction about a first pivot axis in a grasping action and a second movable member moves the second jaw in a second direction different than the first direction and about a second pivot axis in a cutting action. A switch is positioned at the proximal portion of the instrument and a selecting member is actuated by movement of the switch, the selecting member movable between a first position to enable movement of the second jaw in the first direction and prohibit movement in the second direction and a second position to enable movement of the second jaw in the second direction and prohibit movement in the first direction.

A staple cartridge comprises an outer tissue-contacting surface comprising at least one first staple cavity. The at least one first staple cavity is configured to receive at least one first staple that includes a first staple leg with a first tip protruding beyond the outer tissue-contacting surface when the at least one first staple is in an unfired position. The staple cartridge includes an inner tissue-contacting surface comprising at least one second staple cavity. At least one pocket extender protrudes from the outer tissue-contacting surface, wherein the at least one pocket extender is configured to conceal the first tip when the at least one first staple is in the unfired position. The inner tissue-contacting surface cooperates with the outer tissue-contacting surface and the at least one pocket extender to define a contoured frame configured to reduce friction against tissue as the staple cartridge is moved relative to tissue.

A powered handle for a surgical stapler can have a drive system including an electric motor. The powered handle can include a manual articulation mechanism to articulate a jaw assembly coupled to a reload shaft connected to the handle. The manual articulation mechanism can include a ball screw mechanism that translates an articulation member responsive to rotation of an articulation knob. The articulation mechanism includes a release function that allows the jaw assembly to return to a longitudinally centered orientation. The powered handle includes a battery pack serving as a power supply for the drive system. A control system can control actuation of the motor based on user inputs and operating parameters of the stapler. The powered handle can include a manual return mechanism.

A surgical end effector for use with a surgical instrument that includes an elongate shaft assembly that includes a rotary output drive shaft is disclosed. An elongate channel is attached to the elongate shaft assembly. An anvil frame that comprises a proximal end and a distal end is selectively movable between open and closed positions relative to the elongate channel. An anvil concentric drive member is rotatably supported by the anvil frame and is configured to receive rotary drive motions from the rotary output drive shaft of the surgical instrument when the anvil frame is in the closed position. A firing member is in driving engagement with the anvil concentric drive member for linear travel through the end effector.

A surgical instrument system comprising a housing, a first drive, a second drive, a first stapling assembly, and a second stapling assembly is disclosed. The housing comprises an electric motor configured to output rotary motions. The first drive is configured to translate in response to the rotary motions. The second drive is configured to translate independently of the first drive in response to the rotary motions. The first stapling assembly is releasably attachable to the housing. The first stapling assembly is configured to perform a first surgical function in response to the translation of the first drive. The second stapling assembly is releasably attachable to the housing when the first stapling assembly is not attached to the housing. The second stapling assembly is configured to perform a second surgical function in response to the translation of the first drive. The second surgical function and the first surgical function are different.

A surgical stapling device is disclosed which includes a handle assembly, an endoscopic body portion and a tool assembly. The tool assembly is rotatably and pivotally supported on a distal end of the endoscopic body portion. A tool assembly rotation mechanism is provided which includes a rotation knob, a substantially rigid tube and a flexible member interconnecting the rigid tube to the tool assembly. The substantially rigid tube translates rotation of the rotation knob to rotation of the flexible member and provides a channel for passage of other components of the surgical stapling device.

An end effector for use with a surgical stapler is disclosed, the end effector comprises a cartridge body comprising a longitudinal axis and a plurality of staple cavities defined in the cartridge body. The staple cavities comprise a first annular row of staple cavities extending around the longitudinal axis and a second annular row of staple cavities extending around the longitudinal axis. The end effector further comprises staples removably stored in the staple cavities and a ramp rotatable about the longitudinal axis to sequentially eject the staples from the staple cavities. The end effector further comprises a cutting member which is deployed after the staples are ejected from the staple cavities.

An end effector for use with a surgical stapler is disclosed, the end effector comprises a cartridge body comprising a longitudinal axis and a plurality of staple cavities defined in the cartridge body. The staple cavities comprise a first annular row of staple cavities extending around the longitudinal axis and a second annular row of staple cavities extending around the longitudinal axis. The end effector further comprises staples removably stored in the staple cavities and a ramp rotatable about the longitudinal axis to sequentially eject the staples from the staple cavities.

A clip cartridge assembly for use with a reposable surgical clip applier includes a clip tray, a plurality of surgical clips, and a cover. The clip tray includes a plurality of distally oriented, deflectable, resilient fingers projecting from a base wall thereof. Each resilient finger terminates in a distal shoulder and a proximal end of the clip tray is configured for selective connection with a clip pusher bar of an endoscopic assembly of the reposable surgical clip applier. The cover includes a plurality of distally oriented, deflectable, resilient fingers projecting within a channel defined through proximal and distal ends thereof. Each resilient finger of the cover terminates in a distal shoulder and the cover includes a pair of opposed slots defined within sidewalls of the channel configured to slidably retain the clip tray and the plurality of surgical clips therein. A reposable surgical clip applier is also provided.