An improved catheter is provided that is particularly useful for mapping the pulmonary vein and other tubular regions of or near the heart. The catheter comprises an elongated catheter body having a proximal end, a distal end and at least one lumen extending longitudinally therethrough. A mapping assembly...http://www.google.de/patents/US7738938?utm_source=gb-gplus-sharePatent US7738938 - Catheter and method for mapping a pulmonary vein
