| abstract |
A covered stent for treating a stenotic region in a blood vessel. The stentncovering has different porosities in different regions. In those regions, typically thenends, where tissue ingrowth and re-endothelialization are desired, the stent coveringnis more porous, and in those regions were it is desirable to inhibit such ingrowth,nthe stent covering is substantially non-porous. |