An endoscopic bioptome includes a flexible coil having a lumen with an axially displaceable wire extending therethrough. The proximal ends of the coil and wire are coupled to a manual actuator for axially displacing one of the coil and wire relative to the other. The distal end of the coil is coupled...http://www.google.es/patents/US5797957?utm_source=gb-gplus-sharePatente US5797957 - Endoscopic bioptome with a hard stop to control biting force
Endoscopic bioptome with a hard stop to control biting force
