An electrosurgical device includes a plurality of electrodes for forming a plurality of bipolar circuits usable for affecting a patient's tissue during a surgical operation. At least one of said electrodes is operable as an active electrode in one of said bipolar circuits and as a return electrode in...http://www.google.ca/patents/US20060025765?utm_source=gb-gplus-sharePatent US20060025765 - Electrosurgical systems and methods