Patent ID: 6786906
Filing Date: 2004-09-07
Classification: A61B

Abstract:
An electrosurgical tool for operation in conjunction with a power supply and control means which controls the power supply to the tool, said tool having a first end from which depend electrical connections to the power supply, and the tool includes a supply or active electrode, and a return electrode, the ends of which electrodes positioned at the end of the tool opposing the first end of the tool, define the end of the tool for performing an electrosurgical function when positioned in proximity with the body tissue and characterised in that at that end of the tool, the working end of the active electrode is positioned to protrude beyond the end of the return electrode to contact with the body tissue and the return electrode is formed from a plurality of spaced electrode components; and wherein,the tool is used in conjunction with a control means for an electrosurgical generator which utilises dynamic impedance feedback and adaptive algorithm techniques together with a wave guided biphasic RF/EM energy to generate a phased energy field around the active electrode of the tool at the working end of the tool.