Patent ID: 7118568
Filing Date: 2006-10-10
Classification: A61B,A61M

Abstract:
1. A process for preventing atrial premature contractions originating within a pulmonary vein from being conducted into a left atrium of a human heart comprising: advancing a medical device into the left atrium of a human heart; introducing the advanced medical device into the pulmonary vein from the left atrium of a human heart; sensing electrical activity within the pulmonary vein using the introduced medical device; locating a source of an atrial premature contraction within the pulmonary vein using the sensed electrical activity; introducing a conductive media; and forming a circumferential ablation lesion in tissue of the pulmonary vein at a location proximal from the located source of an atrial premature contraction within the pulmonary vein, wherein the ablation lesion electrically isolates the located source of an atrial premature contraction in the pulmonary vein from connection with the left atrium and blocks passage of an atrial premature contraction originating from the located source.