Abstract: A forceps includes at least one shaft and a housing defining a cavity. An end effector assembly is attached to the shaft(s) and includes first and second jaw members movable relative to one another from a spaced apart position to a closer position. A knife channel defined within the jaw members is configured to receive a knife. A trigger assembly is disposed within the cavity and includes a trigger having a first link pivotably coupled at one end to the trigger and slidingly engaged to a second link at the other end. The second link includes a first end telescopically slideable relative to the first link upon actuation of the trigger through a range of motion and a second end pivotably coupled to a third link which, in turn, couples to the knife. Actuation of the trigger translates the knife through the knife channel.

Abstract: A surgical instrument includes first and second members movable between spaced-apart and approximated positions, a deployable component, and a trigger assembly including a trigger portion and a linkage portion. The trigger portion is engaged with the first member and includes a trigger configured to move relative to the first member between an un-actuated position and an actuated position. The linkage portion is engaged with the second member and the deployable component and is movable between a first position and a second position for moving the deployable component between a retracted position and an extended position. In the spaced-apart position of the members, the trigger portion and the linkage portion are disengaged and wherein, upon movement of the members to the approximated position, the trigger portion and the linkage portion are moved into engagement to enable actuation of the trigger to effect deployment of the deployable component.

Abstract: A bipolar forceps includes first and second shaft members and a housing defining a cavity. An end effector assembly is attached to the shafts and includes first and second jaw members that are movable relative to one another a pivot from a spaced apart position to a position closer to one another. A knife channel is defined within the jaw members and is configured to receive a knife therethrough. A trigger assembly is disposed within the cavity and includes a trigger having a first link pivotably coupled at one end to the trigger and slidingly engaged to a second link at the other end. A second link includes a first end that is slidingly receivable within the first link upon actuation of the trigger through a range of motion and a second end pivotably coupled to a third link which, in turn, couples to the knife. Actuation of the trigger translates the knife through the knife channel through the range of motion.

Abstract: A surgical instrument includes first and second members movable between spaced-apart and approximated positions, a deployable component, and a trigger assembly including a trigger portion and a linkage portion. The trigger portion is engaged with the first member and includes a trigger configured to move relative to the first member between an un-actuated position and an actuated position. The linkage portion is engaged with the second member and the deployable component and is movable between a first position and a second position for moving the deployable component between a retracted position and an extended position. In the spaced-apart position of the members, the trigger portion and the linkage portion are disengaged and wherein, upon movement of the members to the approximated position, the trigger portion and the linkage portion are moved into engagement to enable actuation of the trigger to effect deployment of the deployable component.