MULTI-ELEMENT BI-POLAR ABLATION ELECTRODE

摘要

An electrosurgical system includes an elongate device having a distal end portion carrying a plurality of electrically conductive elements, each element electrically insulated from the other elements. A generator is provided having first and second terminals for forming an electrical circuit. Control circuitry which may be located in the device, the generator or external to both, selectively connects a first electrode comprising one or more of the elements to the first generator terminal, and a second electrode comprising one or more of the further elements to the second generator terminal, to form an electrical circuit that is completed by electrical conduction between the first electrode and the second electrode.