| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an aneurysm treatment stent that reliably prevents embolus and intimal thickening of blood vessels, and moreover secures blood flow in terminal small vessels without blocking a bifurcation of the branch vessels. <P>SOLUTION: The body of aneurysm treatment stent 1 expandable in diameter includes a flexible polymer film 2 that tightly covers both inner and outer stent body surfaces. In the stent 1, the polymer film 2 has many fine pores 3 of diameter ranging from 100 to 600 μm opened in the film 2 and formed at substantially equal intervals. The aperture rate of the many fine pores 3 opened in the polymer film 2 ranges from 10 to 60%. <P>COPYRIGHT: (C)2012,JPO&INPIT |
