| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a catheter preferably restricting the deformation or collapsing of a distal end tip. <P>SOLUTION: A balloon catheter 10 includes an outer tube and an inner tube distally extending from the outer tube, and a balloon 13 is provided from the distal end of the outer tube to the distal end side of the inner tube. The inner tube is provided with an inside distal portion 33 for reducing the rigidity of the distal end side of the balloon catheter 10, and the inside distal portion 33 distally extends from the balloon 13. The inside distal portion 33 is formed of a thermoplastic polyamide elastomer, and a tip area 36 extending over a predetermined range from a distal end opening 35 to a proximal side, has an increased crystallinity of the polyamide elastomer. <P>COPYRIGHT: (C)2012,JPO&INPIT |
