An end effector for a surgical stapling device includes an anvil, a multiple use loading unit, and an ejector assembly. The multiple use loading unit is pivotally secured to the anvil and includes a channel member defining a cavity and a staple cartridge received within the cavity. The staple cartridge has a distal portion having an angled lower surface. The ejector assembly includes an ejector button that is supported on the channel member and engages the angled lower surface of the staple cartridge such that movement of the ejector button from an advanced position to a retracted position in relation to the channel member lifts the distal portion of the staple cartridge from the cavity of the channel member.

A system for controlling a robotic end-effector is disclosed. The system includes a robotic arm, a surgical tool including an end-effector with articulatable arm and a clamp jaw. A tool driver is coupled to the surgical tool and a motor is coupled to the tool driver and is configured to drive the surgical tool. A sensor is configured to sense external forces applied to the end-effector. A central control circuit is configured to control the tool driver. The central control circuit is configured to receive a sensed parameter from the sensor, receive a sensed motor current (I) from the motor, and control the tool driver based on the sensed parameter and the motor current (I).

A surgical instrument includes a power pack, an outer shell housing configured to selectively encase the power pack, and an adapter assembly configured to selectively couple the outer shell housing to a loading unit. The outer shell housing includes a motor and a drive shaft coupled to and rotatable by the motor. The outer shell housing includes a drive member supported in a distal portion thereof. The drive member is configured to selectively couple to the drive shaft. The adapter assembly has a drive member supported in its proximal end. The drive member of the adapter assembly is configured to selectively couple to the drive member of the outer shell housing such that rotation of the drive shaft actuates movement of the drive member of the adapter assembly via the drive member of the outer shell housing.

A staple cartridge assembly is disclosed comprising one or more wire staples and one or more staples formed from a sheet of material.

Methods for forming an implantable layer onto a staple cartridge are disclosed.

A cartridge assembly for a surgical stapler has a first cartridge portion, a second cartridge portion, and a housing. The housing is shaped and configured to provide a fulcrum about which an anvil may pivot. Each of the first and second cartridge portions has an upper surface for engaging tissue, and a slot configured to house a staple. A proximal portion of each of the first and second cartridge portions has a guide portion having at least one of a channel or a protrusion for guiding at least a portion of an i-beam. The second cartridge portion is removably coupled to the first cartridge portion to form a channel between the first and second cartridge portion. Each of the first and second cartridge portions has a recess proximal of the fulcrum, the recess shaped and configured to receive a proximal portion of the anvil.

A surgical stapling device includes a reload assembly that includes a shell housing, a staple cartridge, a plurality of staples received within the staple cartridge, a staple pushing member for ejecting the plurality of staples from the staple cartridge, and a knife for cutting tissue. The shell housing supports a strain gauge which can be molded into the shell housing.

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.

An anvil buttress loading system includes an anvil assembly, an anvil buttress retention clip coupled to the anvil assembly, an anvil buttress loading tool, and an anvil buttress. The anvil buttress is retainable on each of the anvil buttress loading tool and the anvil assembly, and is transferrable from the anvil buttress loading tool to the anvil assembly.

A surgical stapling instrument including a stapling end effector configured for unilateral sealing of tissue. The stapling end effector includes an anvil assembly, a cartridge assembly coupled to the anvil assembly such that stapling end effector is movable between open and closed positions; and a clamping member slidably disposed about the anvil assembly and the cartridge assembly between an initial position in which the stapling end effector is in the open position and subsequent advanced positions in which the stapling end effector is in the closed position. The clamping member includes a substantially “C”-shaped cross-section with a leading edge. The leading edge includes a blade portion positioned outwards of the anvil and cartridge assemblies.