Abstract: An apparatus includes a body assembly, a shaft assembly, and an end effector. The shaft assembly includes an outer sheath and a motorized driving mechanism. The body assembly is configured to actuate the driving mechanism. The end effector includes a staple deck, an anvil, a first staple driver, and a second staple driver. The first staple driver is configured to fire a first annular array of staples of the plurality of staples against the anvil to deform the first annular array of staples at a first compressed staple height. The second staple driver is configured to fire a second annular array of staples of the plurality of staples against the anvil to deform the second annular array of staples at a second compressed staple height independent of the first staple driver. The first compressed staple height and the second compressed staple height are different.

Abstract: An apparatus includes a shaft assembly and an end effector. The shaft assembly includes an outer sheath and a staple driving mechanism. The end effector includes a staple deck, an anvil, a first staple driver, and a second staple driver. The staple deck defines a plurality of staple openings in at least one annular array. Each staple opening in the plurality of staple openings houses a staple. The anvil is configured to actuate relative to the staple deck to compress tissue between the staple deck and the anvil. The staple driving mechanism is configured to actuate the first staple driver to fire a first staple of the plurality of staples against the anvil. The staple driving mechanism is further configured to actuate the second staple driver independently of the first staple driver to fire a second staple of the plurality of staples against the anvil.

Abstract: An apparatus includes a body assembly, a modular shaft assembly, and a coupling detection assembly. The body assembly includes a control circuit, a battery pack operable to power the control circuit, and a first electrical contact assembly. The modular shaft assembly includes a second electrical contact assembly that is configured to operatively engage the first electrical contact assembly when the modular shaft assembly selectively couples with the body assembly. A detection trigger member is configured to activate a detection activation member such that the detection activation member communicates a first detection signal to the control circuit when the modular shaft assembly selectively couples with the body assembly. The control circuit is configured to verify operative engagement between the first electrical contact and the second electrical contact in response to the control circuit receiving the first detection signal.

Abstract: A surgical instrument includes a shaft assembly, a handle assembly, and a latch system configured to operatively couple the shaft and handle assemblies. The latch system includes shaft and a handle lock members respectively connected to the shaft and handle assemblies for inhibiting operative uncoupling of the shaft and handle assemblies. The latch member has a cam surface and a latch member. The latch member is configured to selectively move from a locked position to a released position such that movement of the latch member causes the shaft and handle lock members to disengage and uncouple the shaft and handle assemblies. The latch member is further configured to selectively move from the released position to a removal position such that further movement of the latch member causes the cam surface of the latch member to engage the cam base and urge the shaft assembly in a removal direction.