| 摘要 |
STAPLING DEVICE WITH FEATURES TO PREVENT INADVERTENT FIRING OF STAPLES A surgical device (10) includes a handle assembly (12), an elongated body (14), and a tool assembly (25). The handle assembly (12) includes an actuation assembly (40) operatively associated with an actuation shaft (90) to advance the actuation shaft (90) and configured to prevent advancement of the actuation shaft (90) when the actuation shaft (90) is in a fully retracted position and a moveable handle (19) is in a non-compressed position and/or to prevent advancement of the actuation shaft (90) when a grasping pawl (142) is extended within a grasping slot (97) of the actuation shaft (90). The actuation shaft (90) including a vertical pawl locking surface (92) near a distal end configured to engage a locking notch (154) of a vertical pawl (150). The actuation assembly (40) including a grasping pawl (142) having a radial detent (142a) configured to engage a proximal surface of a grasping slot (97) of the actuation shaft (90) when the grasping pawl (142) is positioned within the grasping slot (97). cm cco cl-i |
