SURGICAL STAPLING APPARATUS WITH INTERLOCKABLE FIRING SYSTEM

摘要

A surgical stapling apparatus. Various embodiments include a handle assembly that has a movable handle that is movable through actuation strokes relative to a stationary handle housing. An actuation is shaft supported at least in part within the stationary handle housing and is movable in response to manipulation of the movable handle. Various embodiments further include a firing lock out assembly that is configured to selectively prevent longitudinal movement of the actuation shaft in a distal direction. A firing release trigger is supported on the movable handle for travel therewith and is configured to interface with the firing lockout assembly to selectively release the firing lockout assembly to permit the actuation shaft to move longitudinally in the distal direction upon manipulation of the movable handle.

主权项

1. A surgical stapling apparatus, comprising:
a handle housing; a movable handle portion operably coupled to said handle housing; an elongated shaft assembly protruding from said handle housing and having a distal end configured to be removably coupled to a disposable loading unit; an actuation shaft interfacing with said movable handle portion such that actuation of said movable handle portion causes said actuation shaft to apply actuation motions to the disposable loading unit coupled to the distal end of the elongated shaft; and a firing release trigger supported on said movable handle portion for travel therewith and interfacing with said actuation shaft such that said actuation shaft is longitudinally movable a first predetermined distance in a distal direction to apply a first one of said actuation motions to the disposable loading unit and prevented from further distal travel until said firing release trigger is activated.