Patent ID: 8224422
Filing Date: 2012-07-17
Classification: A61B

Abstract:
1. A method for controlling an ablation of cardiac tissue using information regarding tissue temperature at various locations of an esophagus of a patient using an electroanatomic mapping system comprising the steps of: introducing an esophageal mapping catheter having a distal end into the esophagus of the patient wherein the distal end of the esophageal mapping catheter contains a location sensor having a plurality of coils, each coil capable of providing an electrical signal in response to a magnetic field; transmitting the plurality of electrical signals to the electroanatomic mapping system; generating a location of the distal end of the esophageal mapping catheter in the electroanatomic mapping system and displaying the location; withdrawing the distal end of the esophageal mapping catheter in order to generate location information along the internal surface of the esophagus; measuring the temperature at one or more locations along the internal surface of the esophagus; and, controlling an ablation of cardiac tissue near the esophagus based on the temperature within the esophagus.