An ultrasonic surgical clamp coagulator apparatus is configured to effect cutting, coagulation, and clamping of tissue by cooperation of a clamping mechanism of the apparatus with an associated ultrasonic end-effector. In order to limit the force with which tissue is clamped between a clamp arm of the...http://www.google.de/patents/US5947984?utm_source=gb-gplus-sharePatent US5947984 - Ultrasonic clamp coagulator apparatus having force limiting clamping mechanism
