A tubular intraluminal graft in the form of a tubular diametrically adjustable stent having a tubular covering of porous expanded polytetrafluoroethylene which is less than 0.10 mm thick. The covering may be on the exterior surface of the stent, or on the interior surface of the stent, or both. The covering...http://www.google.com.tw/patents/US6357104?utm_source=gb-gplus-share專利 US6357104 - Method of making an intraluminal stent graft
