| 摘要 |
A new stent graft comprises two coaxial, radially-expandable stents (11,12), between which a flexible, extensible layer of material (13) is located. Preferably this covers only a part of the stents. The stents preferably have terminal inter-bonding. The layer, preferably a sheet or fabric, comprises polytetrafluoroethylene or polyethylene terephthalate. It is a biological material, e.g. of autologous or homologous origin. |
