22-02-2018 дата публикации
Номер: US20180049752A1
Принадлежит:
A surgical instrument includes a housing, an elongated shaft extending distally from the housing, an end effector assembly, and a trigger assembly. The trigger assembly is disposed in mechanical cooperation with the housing and is configured to longitudinally translate a drive member. The trigger assembly includes a trigger, a gear assembly, a spool, a slider, and a flexible drive member. The trigger is disposed in mechanical cooperation with the gear assembly. The flexible drive member is configured to engage the gear assembly, the spool, and the slider. Movement of the trigger with respect to the housing results in movement of the flexible drive member with respect to the housing and longitudinal movement of the slider with respect to the housing. 1. A surgical instrument , comprising:a housing;an elongated shaft extending distally from the housing and defining a longitudinal axis;an end effector assembly disposed adjacent a distal end of the elongated shaft, the end effector assembly including a first jaw member and a second jaw member, at least one of the jaw members movable with respect to the other jaw member from a spaced-apart position to a position closer to the other jaw member for grasping tissue; anda trigger assembly disposed in mechanical cooperation with the housing and configured to longitudinally translate a drive member, the trigger assembly including a trigger, a gear assembly, a spool, a slider, and a flexible drive member, the trigger disposed in mechanical cooperation with the gear assembly, the flexible drive member configured to engage the gear assembly, the spool, and the slider, wherein movement of the trigger with respect to the housing results in movement of the flexible drive member with respect to the housing and longitudinal movement of the slider with respect to the housing.2. The surgical instrument according to claim 1 , further comprising a drive assembly disposed at least partially within the housing claim 1 , the drive assembly ...
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