发明名称 |
EXPANDER FOR VITAL PIPELINE |
摘要 |
PURPOSE:To heat a stent safely with a simple construction by arranging a reaction heating substance in a balloon as heating means of the stent so that a chemical reaction is caused with a fluid fed into the balloon through a catheter. CONSTITUTION:A vital pipeline expander 1 is made up of a balloon dilator 5 and a cylindrical stent 6. The balloon dilator 5 is made up of a catheter 2 for supplying fluids and a balloon 3 so arranged at a tip part of the catheter 2 as freely expandable. The balloon 3 comprises an elastic material and provided inside with a reaction heating substance 4 that generates heat in a chemical reaction caused with a fluid to be infected through a path 7 of the catheter to expand the balloon 3. The stent 6 mounted being fitted onto an outer circumference of the balloon 3 comprises a so-called shape memory resin having a shape memorized and is inserted into a constricted part 10 within a vital pipeline to expand the part with an expansion of the stent 6 being heated. Thus, the stent is left in the constricted part 10 thereby securing a internal cavity of the vital pipeline 9. |
申请公布号 |
JPH04105660(A) |
申请公布日期 |
1992.04.07 |
申请号 |
JP19900225850 |
申请日期 |
1990.08.27 |
申请人 |
OLYMPUS OPTICAL CO LTD |
发明人 |
HIRAO ISAMI;OZEKI KAZUHIKO;SEKINE RYUTA |
分类号 |
A61M25/00;A61F2/84;A61M25/10;A61M29/02 |
主分类号 |
A61M25/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|