GASTRIC TUBE FOR DISPLACING PART OF AN ESOPHAGUS DURING CARDIAC ABLATION

摘要

A gastric tube (100) is disclosed for displacing a section of an esophagus during cardiac ablation procedures. The gastric tube is an elongated flexible tube designed to be inserted in the esophagus of a patient and extended past the portion of the esophagus which overlies the heart. The gastric tube includes a first lumen (114) extending the length of the tube and which receives a control wire, plastic stylet or other apparatus for displacement of the portion of the esophagus overlying the heart. A second lumen is included which extends to the operative section of the gastric tube, so that contrast liquid or cooling liquid can be injected into the esophagus at that location. A temperature sensor can also be included to measure the temperature of the esophageal wall, as well as electrodes to connect to a three-dimensional mapping system.