| 摘要 |
A stent manufactured for treating internal tubular organs, typically for treating a blood vessel, in which the stent has a sufficient diametral shrinkage ability and an ability for returning back to the original diameter thereof.A zigzag shape-memorized stent A is manufactured by performing shape memorization where a wire 1 is fixed in a zigzag bent manner in which the wire is made from a shape-memorizing Ni-Ti alloy not having been subject to shape-memorization of any sort. A stent A being shape-memorized with a zigzag shape as well as a cylindrical shape could be manufactured by performing shape-memorization process in which a stent having been shape-memorized into a zigzag shape with the end portions thereof being connected by overlapping with each other, is attached to a cylindrical jig.
|
