| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a balloon which is constructed to have both a capacity of softness at the distal end side of the balloon and the capacity of maintaining an enough connecting power at the proximal end side. <P>SOLUTION: A ratio (A/B) of the thickness A of a neck portion 3e at the distal end side of the balloon 3 which is installed at the distal end of a catheter to the thickness B of the neck portion 3f at the proximal end side is prescribed to come in a range of 1/3 to 1 so that the balloon with the structure to have both the capacity of softness at the distal end side and the capacity of maintaining the enough joining power at the proximal end side becomes obtainable. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
