Abstract: A surgical stapling apparatus includes a housing assembly and an adapter assembly defining a longitudinal axis and selectively attachable to the housing assembly. The adapter assembly supports an end effector including an anvil assembly, a cartridge assembly, and a spring lock. The cartridge assembly supports a plurality of fasteners and a sled that is movable through the cartridge assembly to fire the plurality of fasteners. The spring lock is supported on the sled. The spring lock is positioned to move from an unlocked position to a locked position when the sled moves through the cartridge assembly to prevent the cartridge assembly from being refired.

Abstract: A surgical stapling apparatus includes a housing assembly, an elongated shaft assembly, an anvil assembly, a cartridge assembly, and a firing drive screw coupled to a firing nut. The elongated shaft assembly defines a longitudinal axis and has a distal end portion and a proximal end portion. The proximal end portion is selectively attached to the housing assembly. The anvil assembly is supported on the distal end portion of the elongated shaft assembly. The cartridge assembly is selectively attached to the anvil assembly to secure the cartridge assembly to the elongated shaft assembly. The firing nut is coupled to a firing tube. The firing tube is coupled to a firing rod. The firing rod is positioned to advance a drive beam assembly through the cartridge assembly.

Abstract: A surgical stapling device includes a tool assembly and a drive assembly. The tool assembly includes an anvil assembly, and a cartridge assembly that includes a channel member and a staple cartridge. The staple cartridge includes a cartridge body, staples, pushers, and an actuation sled. The drive assembly has a working member that is movable through the tool assembly to advance the actuation sled through the staple cartridge and actuate the tool assembly. The anvil assembly supports a lockout member that interacts with the drive assembly when the actuation sled is not positioned in a proximal portion of the cartridge body to prevent advancement of the drive assembly and firing of the stapling device.

Abstract: A surgical stapling device includes a cartridge assembly and a firing assembly. The cartridge assembly includes a cartridge body defining a central knife slot and rows of staple receiving pockets positioned on each side of the central knife slot. Each of the staple receiving slots receives one of the staples. The firing assembly includes a first firing device and a second firing device. The first firing device is movable from a retracted position to an advanced position independently of the second firing device to eject some of the staples on both sides of the central knife slot from the cartridge body, and the second firing device is subsequently movable from a retracted position to an advanced position to eject the staples remaining in the cartridge body from the cartridge body.

Abstract: A circular stapling device for performing anastomosis procedures includes an end effector that includes or is adapted to deliver probiotics to an anastomotic site during formation of the anastomosis.

Abstract: A surgical stapling apparatus includes a shaft assembly, an end effector secured to the shaft assembly, a firing assembly, and an articulation assembly. The firing assembly includes a drive beam and a flexible knife bar assembly that are selectively advanceable through the end effector for firing the end effector. The articulation assembly has an articulation link assembly and a pivotable bar guide assembly. The articulation link assembly is coupled to the end effector and actuatable to cause the end effector to articulate relative to the shaft assembly. The pivotable bar guide assembly supports the flexible knife bar assembly and includes a proximal guide assembly and a distal guide assembly that are pivotably coupled together. The proximal guide assembly is pivotably coupled to the shaft assembly. The distal guide assembly is pivotably coupled to the end effector.

Abstract: A stapling device includes an adapter assembly and a reload assembly that includes a reload release mechanism that is movable from a locked position in which the reload assembly is locked onto the adapter assembly to an unlocked position in which the reload assembly can be removed from the adapter assembly. The adapter assembly of the stapling device includes a lockout that prevents movement of the reload release mechanism to the unlocked position unless the stapling device is in a non-articulated, unfired position.

Abstract: -- A surgical stapling apparatus includes a housing assembly, an elongated shaft assembly, an anvil assembly, a cartridge assembly, and a firing drive screw coupled to a firing nut. The elongated shaft assembly defines a longitudinal axis and has a distal end portion and a proximal end portion. The proximal end portion is selectively attached to the housing assembly. The anvil assembly is supported on the distal end portion of the elongated shaft assembly. The cartridge assembly is selectively attached to the anvil assembly to secure the cartridge assembly to the elongated shaft assembly. The firing nut is coupled to a firing tube. The firing tube is coupled to a firing rod. The firing rod is positioned to advance a drive beam assembly through the cartridge assembly.

Abstract: A surgical stapling device includes an anvil section, a cartridge section, a staple cartridge, a clamping lever, and a firing assembly. The staple cartridge is releasably supported on the cartridge section and includes a lockout assembly and a knife assembly. The knife assembly includes a knife bar having a cutting blade for cutting tissue clamped between the anvil and cartridge sections. The lockout assembly includes a lockout member that movable from an unlocked position to a locked position and is positioned to shield the cutting blade in both positions. The lockout member is configured to prevent binding of the lockout member to facilitate movement of the lockout member from the unlocked position to the locked position after the stapling device is fired.

Abstract: A circular stapling device for performing anastomosis procedures includes an end effector that includes or is adapted to deliver probiotics to an anastomotic site during formation of the anastomosis.

Abstract: A surgical stapling device includes a tool assembly and a drive assembly. The tool assembly includes an anvil assembly, and a cartridge assembly that includes a channel member and a staple cartridge. The staple cartridge includes a cartridge body, staples, pushers, and an actuation sled. The drive assembly has a working member that is movable through the tool assembly to advance the actuation sled through the staple cartridge and actuate the tool assembly. The anvil assembly supports a lockout member that interacts with the drive assembly when the actuation sled is not positioned in a proximal portion of the cartridge body to prevent advancement of the drive assembly and firing of the stapling device.

Abstract: A surgical stapling device includes a tool assembly having an anvil assembly, a cartridge assembly, and a drive assembly. The cartridge assembly includes a channel member that defines a recess and a staple cartridge that is releasably received within the recess of the channel member. The staple cartridge includes a cartridge body, staples, pushers, and an actuation sled that supports a knife. The drive assembly has a working member that is movable through the tool assembly to advance the actuation sled through the staple cartridge to actuate the tool assembly. The actuation sled of the staple cartridge includes a guard to shield the knife and minimize any likelihood of injury to medical personnel during installation and replacement of the staple cartridge.

Abstract: A surgical stapling apparatus includes a shaft assembly, an end effector secured to the shaft assembly, a firing assembly, and an articulation assembly. The firing assembly includes a drive beam and a flexible knife bar assembly that are selectively advanceable through the end effector for firing the end effector. The articulation assembly has an articulation link assembly and a pivotable bar guide assembly. The articulation link assembly is coupled to the end effector and actuatable to cause the end effector to articulate relative to the shaft assembly. The pivotable bar guide assembly supports the flexible knife bar assembly and includes a proximal guide assembly and a distal guide assembly that are pivotably coupled together. The proximal guide assembly is pivotably coupled to the shaft assembly. The distal guide assembly is pivotably coupled to the end effector.

Abstract: A surgical stapling apparatus includes a shaft assembly, an end effector secured to the shaft assembly, a firing assembly, an articulation assembly, and an articulation guide. The firing assembly includes a flexible knife bar assembly that is selectively advanceable through the end effector for firing the end effector. The articulation assembly has an articulation link assembly and a pivotable bar guide assembly. The articulation link assembly is coupled to the end effector. The articulation link assembly is actuatable to cause the end effector to move relative to the shaft assembly between an unarticulated position and an articulated position. The articulation guide is associated with the pivotable bar guide assembly to enable the flexible knife bar assembly to advance through the pivotable bar guide assembly when the end effector is disposed in the unarticulated position or the articulated position.

Abstract: A surgical stapling apparatus includes a housing assembly and an adapter assembly. The adapter assembly defines a longitudinal axis and is selectively attachable to the housing assembly. The adapter assembly includes an end effector and an articulation assembly. The articulation assembly includes an articulation drive screw, an articulation nut threadedly mounted to the articulation drive screw, an articulation yolk coupled to the articulation nut, and an articulation tube that is positioned to move in response to movement of the articulation nut. Movement of the articulation tube causes the end effector to articulate relative to the longitudinal axis.

Abstract: A surgical stapling apparatus includes a housing assembly and an adapter assembly. The adapter assembly defines a longitudinal axis and is selectively attachable to the housing assembly. The adapter assembly includes an end effector and an articulation assembly. The articulation assembly includes an articulation drive screw, an articulation nut threadedly mounted to the articulation drive screw, an articulation yolk coupled to the articulation nut, and an articulation tube that is positioned to move in response to movement of the articulation nut. Movement of the articulation tube causes the end effector to articulate relative to the longitudinal axis.

Abstract: A surgical stapling device includes a cartridge assembly having a channel member that defines a cavity and a staple cartridge that is received within the cavity. The staple cartridge includes a cartridge body, pushers, staples, and an actuation sled. The cartridge body includes a proximal portion that has resilient tabs and wall portions that define a proximal portion of the knife slot. The tabs are positioned to engage inner surfaces of the channel member when the staple cartridge is inserted into the cavity. The actuation member includes a guide member that is received within the knife slot and prevents movement of the wall portions from a non-deformed state to a deformed state when the actuation sled is present in the staple cartridge. In the deformed state, passage of a drive assembly into the knife slot is prevented.

Abstract: A stapling device includes an adapter assembly and a reload assembly that includes a reload release mechanism that is movable from a locked position in which the reload assembly is locked onto the adapter assembly to an unlocked position in which the reload assembly can be removed from the adapter assembly. The adapter assembly of the stapling device includes a lockout that prevents movement of the reload release mechanism to the unlocked position unless the stapling device is in a non-articulated, unfired position.

Abstract: A surgical stapling device includes a cartridge assembly and a firing assembly. The cartridge assembly includes a cartridge body defining a central knife slot and rows of staple receiving pockets positioned on each side of the central knife slot. Each of the staple receiving slots receives one of the staples. The firing assembly includes a first firing device and a second firing device. The first firing device is movable from a retracted position to an advanced position independently of the second firing device to eject some of the staples on both sides of the central knife slot from the cartridge body, and the second firing device is subsequently movable from a retracted position to an advanced position to eject the staples remaining in the cartridge body from the cartridge body.