The invention is directed to a mapping catheter useful for mapping tubular regions in and around the heart. The catheter comprises an elongated tubular catheter body. A mapping assembly is provided at the distal end of the catheter body. The mapping assembly comprises a tubular structure comprising a...http://www.google.fr/patents/US7142903?utm_source=gb-gplus-shareBrevet US7142903 - Catheter with contractable mapping assembly
