MULTI-LEAFLET COUPLING FOR BRANCH VESSEL CONNECTION
First Claim
1. An endovascular prosthesis comprising:
- a tubular body of a graft material, the tubular body defining a lumen and having an opening formed therein;
a plurality of stents coupled to the tubular body; and
a multi-leaflet coupling having a plurality of overlapping leaflets successively coupled to the tubular body around the opening, the leaflets defining a passageway that is in fluid communication with the lumen of the tubular body, wherein the leaflets in a non-deployed configuration lay flush with the graft material of the tubular body and partially cover the opening of the tubular body and wherein the leaflets in a deployed configuration extend radially outward from the graft material of the tubular body, and wherein a diameter of the passageway defined by the leaflets increases when the leaflets transform from the non-deployed configuration to the deployed configuration.
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Accused Products
Abstract
A prosthesis includes a tubular body of a graft material, a plurality of stents coupled to the tubular body, and a coupling. The coupling has a plurality of overlapping leaflets successively coupled to the tubular body around an opening formed in the graft material. The leaflets in a non-deployed configuration lay flush with the graft material of the tubular body and partially cover the opening, and the leaflets in a deployed configuration extend radially outward from the graft material of the tubular body. Delivery and deployment of a branch vessel prosthesis through the opening causes the leaflets to transform from the non-deployed configuration to the deployed configuration, and causes a diameter or width of a passageway defined by the leaflets to increase. Leaflet material properties, as well as size, shape, and sewing patterns on adjacent leaflets may be varied in order to vary the flexibility and/or orientation of the coupling.
31 Citations
20 Claims
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1. An endovascular prosthesis comprising:
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a tubular body of a graft material, the tubular body defining a lumen and having an opening formed therein; a plurality of stents coupled to the tubular body; and a multi-leaflet coupling having a plurality of overlapping leaflets successively coupled to the tubular body around the opening, the leaflets defining a passageway that is in fluid communication with the lumen of the tubular body, wherein the leaflets in a non-deployed configuration lay flush with the graft material of the tubular body and partially cover the opening of the tubular body and wherein the leaflets in a deployed configuration extend radially outward from the graft material of the tubular body, and wherein a diameter of the passageway defined by the leaflets increases when the leaflets transform from the non-deployed configuration to the deployed configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A main prosthesis and a branch vessel prosthesis assembly comprising:
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a main prosthesis configured for placement in a main vessel, the main prosthesis including a tubular body of graft material, a plurality of stents coupled to the tubular body, and a multi-leaflet coupling having a plurality of overlapping leaflets successively coupled to the tubular body around an opening formed in the tubular body, wherein the leaflets lay flush with the graft material of the tubular body and partially cover the opening of the tubular body in a non-deployed configuration; and a branch vessel prosthesis configured for placement through the opening formed in the tubular body of the main prosthesis and into a branch vessel that extends from the main vessel, wherein the leaflets in a deployed configuration extend radially outward from the graft material of the tubular body and an inside surface of the leaflets forms a seal onto an outer surface of the branch vessel prosthesis. - View Dependent Claims (12, 13, 14)
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15. A method for excluding an aneurysm at a target location near a junction of a main vessel and a branch vessel, comprising the steps of:
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delivering a main prosthesis in a compressed configuration to the target location in the main vessel, the main prosthesis including a tubular body of graft material, a plurality of stents coupled to the tubular body, and a multi-leaflet coupling having a plurality of overlapping leaflets successively coupled to the tubular body around an opening formed in the tubular body, wherein the leaflets lay flush with the graft material of the tubular body and partially cover the opening of the tubular body; aligning the multi-leaflet coupling with the branch vessel; deploying the main prosthesis such that the tubular body expands from the compressed configuration to an expanded configuration, wherein the tubular body is disposed in the main vessel; delivering a branch vessel prosthesis in a compressed configuration through the opening formed in the tubular body of the main prosthesis and into the branch vessel, wherein delivery of the branch vessel prosthesis through the opening deploys the leaflets to extend radially outward from the graft material of the tubular body and form a seal onto an outer surface of the branch vessel prosthesis. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification