ESOPHAGEAL LIQUID-SUPPLY CATHETER, AND INTERMEDIATE COMPONENT OF ESOPHAGEAL LIQUID-SUPPLY CATHETER

摘要

The present invention discloses an esophageal liquid-supply catheter with which it is possible to efficiently supply a liquid to the esophagus and thereby reduce temperature conduction during heating, cooling, etc., caused by ablation of the esophagus. This esophageal liquid-supply catheter comprises a cylindrical member, a plurality of arms of which the proximal-end parts are secured to a distal-end part of the cylindrical member, and a distal-end tip secured to the distal ends of the arms, the esophageal liquid-supply catheter being such that the plurality of arms are capable of deforming and extending outward in the radial direction of the cylindrical member. For example, a shaft that is inserted into the cylindrical member and has the distal end thereof secured to the distal-end tip is provided, and the shaft is caused to slide toward the proximal-end side relative to the cylindrical member, thereby making it possible to cause the arms to extend radially outward.