| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a balloon catheter which is suitably pulled from the inside of the body. <P>SOLUTION: The balloon catheter includes an outside tube and a balloon 13. The balloon 13 has a proximal side leg area joined to a distal end side of the outside tube and a proximal side cone area which is formed by being diametrically enlarged from the distal end part of the leg area to the distal side. The balloon catheter is manufactured by performing a dilation step of dilating the balloon 13 and a blade formation step of moving a plurality of pressurizing members 33 arranged around a dilated dilation/contraction part of the balloon 13 to a prescribed position in a radial-direction inside of the dilation/contraction part and crushing the dilated dilation/contraction part of the balloon 13 by the respective pressurizing members 33, thereby projecting a part of the dilation/contraction part to the radial-direction outside between the respective pressurizing members 33 and forming a plurality of blades 25. In this case, the prescribed position is set at a position at which the diameter of a virtual inscribed circle inscribed in the non-facing pressurizing surfaces 33c of the respective pressurizing members 33 is smaller than the outer diameter of the proximal side leg area. <P>COPYRIGHT: (C)2013,JPO&INPIT |
