Patent ID: 8535301
Filing Date: 2013-09-17
Classification: A61B,A61F,A61M,A61N

Abstract:
1. A method of ablating tissue, comprising: providing a tissue ablation probe comprising: shaping the tubular shaft and the cryogen delivery tube via plastic deformation such that the cryogenic ablation surface conforms to a surface of cardiac tissue to be treated; introducing the tissue ablation probe into a patient's body; manipulating the tissue ablation probe such that the cryogenic ablation surface contacts the surface of cardiac tissue to be treated; delivering a pressurized cryogen via the cryogen delivery tube such that it exits the at least one aperture and expands in the boiler chamber, thereby cooling the cryogenic ablation surface via the Joule-Thompson effect; and recovering the expanded cryogen via the exhaust passageway.