A bipolar electrocoagulator comprises a working portion made as a body (1) of revolution interconnected with a drive (10), and one or two electrodes (2, 3) affixed on the surface of revolution of the body (1) to form a helix. The electrodes (2, 3) are connected, via current leads (5, 6) to a power source...http://www.google.co.uk/patents/US4637392?utm_source=gb-gplus-sharePatent US4637392 - Bipolar electrocoagulator
