Patent ID: 8876817
Filing Date: 2014-11-04
Classification: A61B

Abstract:
1. An electrophysiology system comprising: an ablation catheter including: a radiofrequency (RF) generator operatively coupled to the tissue ablation electrode for generating the ablation energy to be conveyed to the tissue ablation electrode; and a mapping processor configured to: an indication that the tissue ablation electrode is in contact with the myocardial tissue if, based on the comparison between the amplitudes of the output signals, a difference between the amplitude of any one of the output signals and the amplitude of any one or more of the other output signals exceeds a predetermined threshold; and an indication that the tissue ablation electrode is not in contact with the myocardial tissue if, based on the comparison between the amplitudes of the output signals, the difference between the amplitude of any one of the output signals and the amplitude of any one or more of the other output signals does not exceed a predetermined threshold.