Bioprosthetic heart valves having adaptive seals to minimize paravalvular leakage
First Claim
1. A bioprosthetic heart valve, comprising:
- a dry biological tissue leaflet structure comprising an inflow portion and an outflow portion;
an expandable supporting frame coupled to the dry biological tissue leaflet structure; and
an adaptive seal coupled to the expandable supporting frame, the adaptive seal comprising an expandable material configured to expand after exposure to an initiating condition;
wherein the expandable material is a substantially dehydrated hydrogel that has been crosslinked with a biodegradable crosslinker;
wherein the dry biological tissue leaflet structure, the expandable supporting frame, and the adaptive seal are configured for joint storage in a sealed package that does not contain a liquid storage solution.
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Accused Products
Abstract
A packaged bioprosthetic heart valve comprising a bioprosthetic heart valve, an adaptive seal and a package. The bioprosthetic heart valve comprises an at least partially dehydrated biological tissue leaflet structure coupled to a supporting frame. The bioprosthetic heart valve has a periphery, an inflow portion, and an outflow portion. The adaptive seal is coupled to the bioprosthetic heart valve around at least a portion of the periphery. The adaptive seal comprises an expandable material that expands after exposure to an initiating condition. The bioprosthetic heart valve and the adaptive seal is stored and contained within the package, which does not contain a liquid storage solution in contact with the bioprosthetic heart valve and the adaptive seal.
352 Citations
14 Claims
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1. A bioprosthetic heart valve, comprising:
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a dry biological tissue leaflet structure comprising an inflow portion and an outflow portion; an expandable supporting frame coupled to the dry biological tissue leaflet structure; and an adaptive seal coupled to the expandable supporting frame, the adaptive seal comprising an expandable material configured to expand after exposure to an initiating condition; wherein the expandable material is a substantially dehydrated hydrogel that has been crosslinked with a biodegradable crosslinker; wherein the dry biological tissue leaflet structure, the expandable supporting frame, and the adaptive seal are configured for joint storage in a sealed package that does not contain a liquid storage solution. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification