Bipolar transmural ablation method and apparatus

摘要: A method and apparatus for creating transmural ablations in heart tissue, example, may include two or more electrodes adapted to be connected opposite poles of a bipolar RF generator so as energize the ablate cardiac tissue between electrodes. first electrode inserted into at location second which is spaced from location. At least one provide sufficiently low current density vicinity avoid substantial desiccation when energized. Alternatively, ablation comprises an elongated conductive member spiral shape having pitch small sufficient surface area energized by generator.