Patent ID: 8512387

Claim:
An esophageal cooling system for Ablation Procedures Associated with the Cardiac Arrhythmias comprising: an esophageal catheter including a phoximal balloon constructed and arranged for occluding an upper portion of an esophagus, said phoximal balloon including a coolant lumen therethrough for transfer of a liquid coolant, said coolant lumen terminating in a nozzle, said nozzle adapted to direct a liquid coolant against the inner surface of the esophageal lumen, said nozzle is constructed and arranged to produce a frusta-conically shaped spray of said liquid coolant, a suction lumen also extending through said phoximal balloon for evacuation of said liquid coolant, said suction lumen including at least one stand-off, said at least one stand-off constructed and arranged to extend between said suction lumen and said coolant lumen for locating and supporting said suction lumen within said central portion of said coolant lumen, said nozzle including a deflector member extending around said suction lumen for deflecting said liquid into said frusta-conically shaped spray.