Blade lockout mechanism for surgical forceps

摘要

A forceps includes first and second shaft members and a trigger assembly. The first and second shaft members each have a jaw member disposed at a distal end thereof. One or both of the jaw members are moveable to position the jaw members between an open position and a closed position. One of the jaw members is configured for reciprocation of a blade therethrough. The trigger assembly is movable between unactuated and actuated positions to selectively translate the blade between a retracted position and one or more extended positions. The blade extends at least partially through one or both of the jaw members in the one or more extended positions such that when the blade is disposed in the one or more extended positions, the trigger assembly is configured to move to the unactuated position upon movement of the jaw members from the closed position to the open position.

主权项

1. A forceps, comprising:
first and second shaft members, each of the first and second shaft members having a handle disposed at a proximal end thereof and a jaw member disposed at a distal end thereof, the handles of the first and second shaft members movable relative to one another to pivot the first and second shaft members in relation to one another such that the jaw members move between an open position and a closed position for grasping tissue between the jaw members, at least one of the jaw embers configured for reciprocation of a blade therethrough; and a trigger assembly movable between an unactuated position and an actuated position to selectively translate the blade between a retracted position and at least one extended position, the blade extending at least partially through at least one of the jaw members in the at least one extended position such that when the blade is disposed in the at least one extended position, the trigger assembly is configured to move to the unactuated position upon movement of the jaw members from the closed position to the open position.