| 摘要 |
A catheter balloon made of a polymer and comprising a cylindrical portion (2) of a substantially uniform diameter, tapered portions (3a,3b) at the front and rear of the cylindrical portion and connecting portions (4a,4b) at the front and rear of the tapered portions, characterized in that the wall thicknesses (B) of the middle parts of the tapered portions are equal to or smaller than 1.2 times the wall thickness (A) of the cylindrical portion (B/A <_ 1.2). <IMAGE> |
