An endoscopic instrument with suction/irrigation end effectors includes a tube, a push rod which extends through the tube, an actuator engaging the tube and the push rod, and end effectors coupled to the tube and push rod, where the end effectors include or define a bore which acts as a lumen for suction/irrigation....http://www.google.fr/patents/US5417709?utm_source=gb-gplus-shareBrevet US5417709 - Endoscopic instrument with end effectors forming suction and/or irrigation lumens
Endoscopic instrument with end effectors forming suction and/or irrigation ...