| 摘要 |
A bifurcated prosthetic stent graft (100) has two stent grafts with co-located respective first ends, and disparately located respective second ends. Each stent grafts includes a first stent segment (102) at the first end of the stent graft having a semicircular portion (12) and a diameter portion (14) connecting the ends of the semicircular portion (12) and held in tension by the ends of the semicircular portion (12), defining a substantially D-shape. Compression and heat applied to the diameter portion (14) during manufacture of the stent results in the diameter portion being in tension when the stent is deployed. One or more transition segments (104) transitions the stent graft between a substantially D-shape and a substantially circular shape. A vascular graft (108a,108b) encloses the first stent segment and one or more transition stent segments, the vascular graft providing a fluid flow lumen from the first end of the stent graft to the second end. |
