Patent ID: 11957402
Assignee: COVIDIEN LP
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 8:
9. An electrosurgical vessel sealing instrument, comprising:
a housing;
a shaft extending from the housing;
an end effector assembly coupled to a distal end of the shaft and including a pair of first and second jaw members configured to deliver electrosurgical energy to tissue;
a cam slot defined in each of the first and second jaw members;
a pair of cam members disposed within the cam slots defined by the respective first and second jaw members, the pair of cam members configured to move along a longitudinal axis defined by the shaft;
a drive train configured to move through the shaft along the longitudinal axis to move the pair of cam members within the cam slots defined by the respective first and second jaw members, thereby moving at least one of the first or second jaw members relative to the other jaw member, the drive train including a proximal drive rod and a distal resilient member configured to cooperate to cause the first and second jaw members to provide a closure force on tissue disposed between the jaw members upon longitudinal movement of the drive train along the longitudinal axis.