A bipolar electrosurgical scissors for use in open or endoscopic surgery has a pair of opposed metal blade members pivotally joined to one another and to the distal end of the scissors itself by a rivet. Each of the blade members comprises a cutting blade having an electrode on the non-shearing surface....http://www.google.co.uk/patents/US5540685?utm_source=gb-gplus-sharePatent US5540685 - Bipolar electrical scissors with metal cutting edges and shearing surfaces
