A system and method for cardiac mapping and ablation includes a multi-electrode catheter introduced percutaneously into a subject's heart and deployable adjacent to various endocardial sites. The electrodes are connectable to a mapping unit, an ablation power unit a pacing unit, all of which are under...http://www.google.ca/patents/US5433198?utm_source=gb-gplus-sharePatent US5433198 - Apparatus and method for cardiac ablation
