SURGICAL STAPLING INSTRUMENT WITH SHAFT RELEASE, POWERED FIRING, AND POWERED ARTICULATION

摘要

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.

主权项

1. A surgical instrument, comprising:
(a) a shaft assembly having a distal end portion and a proximal end portion, the proximal end portion including an end effector projecting distally therefrom; (b) a handle assembly configured to receive the proximal end portion of the shaft assembly; and (c) a latch system configured to operatively couple the shaft assembly to the handle assembly, the latch system including:
(i) a shaft lock member connected to the shaft assembly,(ii) a handle lock member connected to the handle assembly, wherein the handle lock member is configured to engage the shaft lock member and inhibit the shaft assembly from operatively uncoupling from the handle assembly,(iii) a cam base, and(iv) a latch member, the latch member having a cam surface configured to engage the cam base,
wherein the latch member is configured to selectively move from a locked position to a released position such that movement of the latch member toward the unlocked position is configured to cause the shaft lock member to disengage from the handle lock member and thereby operatively uncouple the shaft assembly from the handle assembly in the released position,wherein the latch member is further configured to selectively move from the released position to a removal position such that movement of the latch member toward the removal position is configured to cause the cam surface of the latch member to engage the cam base and thereby urge the shaft assembly in a removal direction relative to the handle assembly for indicating the removal direction to a user.