Balloon catheter and method for inflating balloons of balloon catheter

Abstract

A balloon catheter having balloons having large diameters and high withstanding pressures, a balloon catheter having balloons easily insertable into a blood vessel, each of the balloons being inflatable to have a large diameter and also having a perfusion function at the time of inflation, and a method for inflating the balloons of the balloon catheters are provided. A balloon catheter includes a shaft extending in a longitudinal direction from a proximal side to a distal side, a first balloon disposed at a distal part of the shaft, and a balloon group including a plurality of second balloons arranged in a circumferential direction of an outer periphery of the first balloon. When the first balloon and the balloon group are inflated, adjacent ones of the second balloons constituting the balloon group are in contact with each other.

Dependencies are inferred from the claim text.