Vascular prosthesis with crimped adapter and methods of use
The vascular prosthesis includes a luminal graft component that defines at least one fenestration and a crimped adapter at the at least one fenestration. The crimped adapter includes a perimeter and an opening with a diameter smaller than the diameter of the fenestration, and includes a crimped portion of generally concentric folds about the opening. The opening can move relative to the perimeter region of the crimped adapter to accommodate positioning of a branch prosthesis extending through the crimped adaptor. The vascular prosthesis is implanted in a patient to thereby treat, for example, an arterial aneurysm that spans a region of an artery that includes at least one arterial branch.
1. A vascular prosthesis, comprising:
a) a luminal graft component having a proximal open end, a distal open end, and defining a main lumen extending from the proximal open end to the distal open end, the luminal graft component defining at least one fenestration; and
b) a crimped adapter at the at least one fenestration, the crimped adapter including a perimeter section that is fixed to the luminal graft component and seals the fenestration, the crimped adapter also defining an opening with a diameter smaller than the fenestration and including a crimped portion of generally concentric folds arranged concentrically within the perimeter section and about the opening, wherein the concentric folds are coplanar, and whereby the crimped adapter can adapt to positioning of a branch prosthesis extending through the opening by flexation of the folds to thereby move the opening relative to the perimeter section, and wherein the concentric folds of the crimped adapter have an amplitude in a range of between about 1 mm and about 10 mm.
2. The vascular prosthesis of claim 1 , wherein the folds of the crimped adapter have a period in a range of between about 1 mm and about 5 mm.
3. The vascular prosthesis of claim 2 , wherein the folds of the crimped adapter have a period in a range of between about 2 mm and about 4 mm.
4. The vascular prosthesis of claim 1 , further including a plurality of radial stents distributed longitudinally along the luminal graft component, the radial stents including struts that define proximal apices and distal apices.
5. The vascular prosthesis of claim 1 , wherein the crimped adapter includes at least one member selected from the group consisting of polytetrafluoroethylene, polyethylene terephthalate, polymer and silicon.
6. The vascular prosthesis of claim 1 , wherein the vascular prosthesis includes one fenestration and one crimped adapter.
7. The vascular prosthesis of claim 1 , wherein the vascular prosthesis includes two fenestrations and two crimped adapters.
8. The vascular prosthesis of claim 1 , wherein the vascular prosthesis includes three fenestrations and three crimped adapters.
9. The vascular prosthesis of claim 1 , wherein the vascular prosthesis includes four fenestrations and four crimped adapters.
10. The vascular prosthesis of claim 1 , further including at least one branch prosthesis, each branch prosthesis having a proximal end and a distal end, and extendable through the opening of the crimped adapter and the fenestration of the luminal graft component.