This invention is a circumferential ablation device assembly which is adapted to forming a circumferential conduction block in a pulmonary vein. The assembly includes a circumferential ablation element which is adapted to ablate a circumferential region of tissue along a pulmonary vein wall which circumscribes...http://www.google.fr/patents/US6024740?utm_source=gb-gplus-shareBrevet US6024740 - Circumferential ablation device assembly
