A bipolar electrosurgical instrument for clamping, grasping, manipulating, and sealing tissue includes first and second shafts each having a jaw member extending from a distal end thereof and a handle disposed at a proximal end thereof. The handle being operable to effect movement of the jaw members...http://www.google.fr/patents/US7553312?utm_source=gb-gplus-shareBrevet US7553312 - Vessel sealing instrument
