A system for treating atrial fibrillation includes a stent and a delivery catheter for carrying the stent to a treatment site. The stent is self-expanding, for example, being formed of a shape memory alloy, and is configured to lodge against the interior wall of a pulmonary vein. The stent may be formed...http://www.google.es/patents/US6632223?utm_source=gb-gplus-sharePatente US6632223 - Pulmonary vein ablation stent and method
