BALLOON CATHETER AND METHOD OF MANUFACTURING BALLOON CATHETER

摘要

A biaxial medical balloon catheter, wherein only the expanded lumen of a shaft is removed from between a connection part of a shaft to a balloon sleeve on a side close to a balloon and the end of the shaft apart from the balloon, and the main wall of the expanded lumen on a side apart from the connection part is formed of the balloon sleeve on a side close to the connection part, whereby the biaxial balloon catheter having a soft structure at the connection part between the sleeve on a side close to the balloon and the shaft on a side apart from the balloon, preventing a rigidity from being abruptly changed, reducing a step, and allowing a blood vessel portion with high constriction and flexibility to be smoothly advanced thereinto can be easily manufactured with less production steps and at a high production yield.