Systems and methods for ablating body tissue using predicted maximum tissue temperature

Abstract From the Canadian patent

This invention is systems and methods that ablate body tissue using an electrode (16) for contacting tissue at a tissue electrode interface to transmit ablation energy at a determinable power level. The systems and methods include an element (50) to remove heat from the electrode (16) at a determinable rate. The systems and methods employ a processing element (98) to derive a prediction of the maximum tissue temperature condition occurring beneath the tissue electrode interface. The processing element (98) controls the power level of ablation energy transmitted by the electrode (16) or the , rate at which the electrode (16) is cooled or both, based, at least in part, upon the maximum …