"d"-shape stent for treatment of abdominal aortic aneurysm

Details "d"-shape stent for treatment of abdominal aortic aneurysm "d"-shape stent for treatment of abdominal aortic aneurysm

A - Human Necessities

61

F

A61F 2/82 (2006.01) A61B 17/00 (2006.01) A61F 2/06 (2006.01) A61F 2/90 (2006.01)

Patent

CA 2572288

A bifurcated prosthetic stent graft has two stent grafts with co-located respective first ends, and disparately located respective second ends. Each stent grafts includes a first stent segment at the first end of the stent graft having a semicircular portion and a diameter portion connecting the ends of the semicircular portion and held in tension by the ends of the semicircular portion, defining a substantially D-shape. Compression and heat applied to the diameter portion during manufacture of the stent results in the diameter portion being in tension when the stent is deployed. One or more transition segments transitions the stent graft between a substantially D-shape and a substantially circular shape. A vascular graft 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.

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