| 摘要 |
An expandable stent suitable for implantation in a lumen is covered with a biological material. A strip 50 of pericardium is helically wound around a supporting stent 54 while the stent is in a compressed state. When the stent is expanded, the strip unwinds, but maintains full coverage of the stent. Interlocking edges 62, 64 are formed on the strip of pericardium to maintain full coverage of the stent. |
