Patent ID: 7678108

Claim:
A loop ablation device for ablating target tissue adjacent pulmonary veins of a patient, the loop ablation device comprising: a cannula capable of being advanced around the pulmonary veins to form a loop, the loop including first ends and a second end, the cannula being adapted to receive a liquid; at least two electrode rods carrying at least two bipolar electrodes, the at least two electrode rods being capable of being advanced through the first ends toward the second end of the loop and toward the target tissue, the at least two bipolar electrodes being adapted to receive energy to ablate the target tissue, the at least two bipolar electrodes being adapted to be surrounded by the liquid within the cannula while ablating the target tissue; and a rotating grasping mechanism coupled to the at least two electrode rods, the rotating grasping mechanism rotating the at least two electrode rods within the cannula.