BALLOON FOR BALLOON CATHETER, BALLOON CATHETER INCLUDING SAME, AND METHOD FOR PRODUCING BALLOON CATHETER

Abstract

Disclosed is a balloon for a balloon catheter in which the protrusion part provided on the balloon can easily bite into the stenosis, thereby efficiently dilating the stenosis. A balloon (2) for a balloon catheter having a balloon body (20) and a protrusion part (28) that projects outward from the outer surface of the balloon body (20) in the radial direction (y1) and extends in the longitudinal axis direction (x1); the protrusion part (28) having a tip region (28t) including an outer end (28T) and a base region (28b) located inward from the tip region (28t), the balloon body (20) and the protrusion part (28) being composed of the same material, and the surface roughness of the base region (28b) is smaller than that of the tip region (28t) where the surface roughness if measured for a reference length in a direction perpendicular to the longitudinal axis direction (x1).

CPC Classifications