Patent 7366557 was granted and assigned to Biosense Webster on April, 2008 by the United States Patent and Trademark Office.
A catheter having an elongated catheter body including a proximal end, a distal end and at least one lumen extending longitudinally therethrough is provided. A mapping assembly is mounted at the distal end of the catheter body and includes at least two loop shaped arms. Each arm includes two ends with a loop shaped portion extending therebetween. Both ends of each arm are mounted in the distal end of the catheter body. A plurality of electrodes are mounted on each arm.