| 主权项 |
1. An apparatus for applying surgical fasteners to body tissue, comprising:
an elongate body portion; an actuation mechanism movable through the body portion; a plurality of surgical fasteners disposed within the body portion; a jaw assembly mounted adjacent a distal end of the body portion, and including first and second jaw portions, the jaw assembly being movable between a spaced apart position and an approximated position to form a surgical fastener positioned between the first and second jaw portions; a camming mechanism extending from a distal end of the actuation mechanism, the camming mechanism including:
a slider; anda driver positioned distally of the slider, the driver being movable in a distal direction toward the jaw assembly into engagement with the jaw assembly to move the jaw assembly into the approximated position, the slider being positioned between the actuation mechanism and the driver to operatively connect the actuation mechanism and the driver such that movement of the actuation mechanism facilitates corresponding movement of the slider and the driver; and a wedge member positioned within the body portion wherein actuation of the actuation mechanism moves the wedge member from a distal position, in which a distal end of the wedge member maintains the first and second jaw portions in the spaced apart position, to a proximal position, in which the distal end of the wedge member is disposed proximally of the first and second jaw portions to allow the first and second jaw portions to close, wherein the wedge member includes a first slot formed therein configured and dimensioned to receive a second projection extending outwardly from the slider, the second projection being engagable with an end wall defined by the first slot in the wedge member to limit retraction of the slider in relation to the jaw assembly. |
