| 摘要 |
A stent graft having a tubular stent frame including a plurality of connected struts that form a wall extending along a longitudinal axis from a first end to a second end is described. The stent frame may have a substantially uniform expanded diameter from the first end to the second end, a first expanded polytetrafluoroethylene (ePTFE) covering positioned over an abluminal surface of the tubular stent frame, and a second ePTFE covering positioned over a luminal surface of the tubular stent frame. The second ePTFE covering may be joined to the first ePTFE covering through the tubular stent frame wall at the expanded diameter to form an encapsulated stent. The encapsulated stent may have a reduced diameter section at a first end of the encapsulated stent that is less than the expanded diameter. |
