A resectoscope comprising a hollow sheath, an observing scope inserted in the sheath, a resecting electrode inserted through the sheath and a handle part having a slider connected to the sheath, having the electrode connected at the base end to it and moving this electrode forward and rearward in the...http://www.google.es/patents/US4744361?utm_source=gb-gplus-sharePatente US4744361 - Resectoscope
