Prosthetic heart valve systems
First Claim
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1. A prosthetic heart valve comprising:
- a valved conduit comprising a generally tubular structure having at least one leaflet attached within its interior area;
a plurality of support structures connected to the tubular structure and spaced from each other along a length of the tubular structure, wherein each of the support structures is expandable from a first configuration to a second configuration when subjected to internal radial stress, wherein the internal area of each support structure is smaller in its first configuration than in its second configuration.
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Abstract
A heart valve that can be expanded following its implantation in a patient, such as to accommodate the growth of a patient and the corresponding growth of the area where the valve is implanted, and to minimize paravalvular leakage. In one aspect, the invention may maximize the orifice size of the surgical valve. The invention includes expandable implantable conduits and expandable bioprosthetic stented valves. In one aspect of the invention, the valve may be adapted to accommodate growth of a patient to address limitation on bioprosthetic valve lifespans.
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Citations
20 Claims
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1. A prosthetic heart valve comprising:
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a valved conduit comprising a generally tubular structure having at least one leaflet attached within its interior area; a plurality of support structures connected to the tubular structure and spaced from each other along a length of the tubular structure, wherein each of the support structures is expandable from a first configuration to a second configuration when subjected to internal radial stress, wherein the internal area of each support structure is smaller in its first configuration than in its second configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A prosthetic heart valve comprising:
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a sewing ring from which a plurality of stent posts extend, wherein the sewing ring is a generally tubular structure that is expandable from a first configuration to a second configuration, wherein an internal area of the sewing ring is smaller in its first configuration than in its second configuration; at least one leaflet attached within an interior area of the sewing ring; and a reconfigurable support structure, wherein at least a portion of the support structure is attached to at least one of the stent posts. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A prosthetic heart valve comprising a valved conduit comprising a generally tubular structure having at least one leaflet attached within its interior area, wherein the tubular structure comprises:
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a plurality of longitudinal support members spaced from each other around the perimeter of the tubular structure; at least one deformable member attached at a first end to a first longitudinal support member and at a second end to an adjacent second longitudinal support member, wherein the at least one deformable member is reconfigurable when the tubular structure is subjected to an internal radial stress. - View Dependent Claims (16, 17, 18)
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19. A prosthetic heart valve comprising a valved conduit comprising a generally tubular structure having a length extending along a longitudinal axis, wherein the tubular structure comprises:
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a first seam extending along at least a portion of the length of the tubular structure; and a second seam spaced from the first seam and extending along at least a portion of the length of the tubular structure; wherein the first and second seams are positioned relative to each other to form a loop of material that reduces an internal diameter of the tubular structure from an expanded configuration to a compressed configuration. - View Dependent Claims (20)
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Specification