An electrosurgical instrument for cutting tissue includes a blade assembly. The blade assembly includes a first electrode having a first pre-selected shape and a first distal edge, and a second electrode disposed in spaced relation relative to the first electrode. The second electrode includes a second...http://www.google.se/patents/US20090234354?utm_source=gb-gplus-sharePatent US20090234354 - Bipolar Cutting End Effector
