A surgical instrument having a handle, barrel and working end effector tip is provided. The barrel is generally tubular, with one end being releasably connected to the handle. The end effector is moveably attached to the other end of the barrel, and may be positioned and operated independently...http://www.google.es/patents/US5817119?utm_source=gb-gplus-sharePatente US5817119 - Surgical instrument for endoscopic and general surgery
Surgical instrument for endoscopic and general surgery
