In an electrosurgical system which is operable within the frequency range of from 100 kHz to 50 MHz and which has a handheld instrument with an elongate instrument shaft, the distal end of the shaft carries a bipolar electrode assembly for use in a conductive fluid field. The electrode assembly has an...http://www.google.ca/patents/US20040181219?utm_source=gb-gplus-sharePatent US20040181219 - Electrosurgical instrument and an electrosugery system including such an instrument
