公开(公告)号：CA3120927A1

公开(公告)日：2020-06-25

申请号：CA3120927

申请日：2019-12-19

Applicant: TORAY INDUSTRIES

Inventor： YAMAMOTO MASAHIRO ,  NAKAJIMA HIROKI ,  IKEDA TOMOHIKO ,  MATSUKUMA AKINORI ,  OKADA TATSUYA

IPC: A61M25/00 ,  A61B18/00 ,  A61F7/12

Abstract: 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.