| 摘要 |
An endovascular stent for vascular vessels which can be used to occlude the vessel or which can be used to bridge damaged areas in the vessel. The endovascular stent comprising a stent that can be permanently expanded from a first diameter to a larger second diameter. The stent can be a helically wound wire stent, each wire comprising at least two strands. The two strands being twisted. The twisted strands securing fibers to form a fabric pile extending outwardly from stent, and optionally extending inwardly into the stent. In a second embodiment, the stent is enclosed with a tubular-like expandable graft. The graft having an exterior fabric pile made up of individual fibers. In both embodiments, the fibers or the pile are optionally coated with a hydrophilic polymeric gel which expands upon being wetted. |
