The invention provides apparatus and methods for mapping conduction pathways and creating lesions in the heart wall for the treatment of atrial fibrillation. The apparatus may include at least one epicardial ablation probe having a plurality of electrodes for creating a lesion. The apparatus and method...http://www.google.com/patents/US20030028187?utm_source=gb-gplus-sharePatent US20030028187 - Device and method for forming a lesion
