The invention is related to an instrument for endoscopic surgery. The instrument comprises a casing 10, further comprises a sliding tube 16 which extends into the casing with its proximal end 20 and which is disposed longitudinally slidable with respect to the casing by means of an actuating mechanism...http://www.google.es/patents/US6001096?utm_source=gb-gplus-sharePatente US6001096 - Instrument for endoscopic surgery
