An end effector assembly for use with an endoscopic instrument includes a clevis and first and second end effectors. The clevis has curved channels extending from a distal portion of the clevis towards the proximal portion of the clevis means. Each channel has first and second inner curved walls. The...http://www.google.fr/patents/US5490861?utm_source=gb-gplus-shareBrevet US5490861 - Track guided end effector assembly for use with endoscopic instruments
Track guided end effector assembly for use with endoscopic instruments