Prosthesis having an everting pivoting fenestration

摘要

The present disclosure relates to an endoluminal prosthesis (10), such as a stent graft that includes one or more fenestrations (12) to accommodate endovascular disease, such as an aneurysm in cases where one or more side branches is involved. In one embodiment, the prosthesis (10) includes fenestrations (12) that are pivotable to accommodate the dynamic geometry of the aortic branches. In another embodiment, the pivotable fenestrations (12) include a first perimeter (26), a band (28) of flexible material attached and surrounding the first perimeter (26), a second perimeter (30) attached to and surrounding the band (28) of flexible material and a support frame (48) disposed about a surface of the band (28) of flexible material. The first perimeter (26), band (28) of flexible material, and second perimeter (30) have a geometric shape. The support frame (48) includes a plurality of support units (50) having curved segments (54). The curved segments (54) of the support units (50) may be concave with respect to an exterior surface of the prosthesis (10).