A left atrium ablation catheter (4), including a sheath (8) and a deflectable electrophysiology catheter (10) housed within the sheath, is used to ablate coronary tissue at a target site within the left atrium (LA) of a heart. The electrophysiology catheter has ablation electrodes (24) along the tip...http://www.google.ca/patents/US6241728?utm_source=gb-gplus-sharePatent US6241728 - Left atrium ablation catheter and method
