BALLOON FOR BALLOON CATHETER AND BALLOON CATHETER INCLUDING SAME

Abstract

A balloon for a balloon catheter that, when deflated, can cut a stenosed site and be easily folded to reduce outer diameter and a balloon catheter including the balloon are provided. The balloon includes a balloon main body having an outer surface and an inner surface and a protruding portion protruding outward in a radial direction from the outer surface of the main body and extending in a longitudinal axis direction. The protruding portion in a straight tube portion has an ST-portion notch and the protruding portion in a distal-side tapered portion has a DT-portion notch. A depth of the ST-portion notch and a depth (D4) of the DT-portion notch are each 50 μm or more, and the depth (D3), a height (H3) of the protruding portion in the straight tube portion, the depth (D4), and a height (H4) of the protruding portion in the distal-side tapered portion satisfy D3/H3≤D4/H4.

CPC Classifications