Transcatheter stent and valve assembly
First Claim
Patent Images
1. A valve suitable for implantation into a human or animal comprising one or more leaflets, wherein the one or more leaflets are constructed from a layer of a material which has a surface porosity of 1.9% to less than 15%, wherein the one or more leaflets comprise more than one layer of the material, and wherein at least two layers of the more than one layer are anisotropic.
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Accused Products
Abstract
Valves constructed from low porosity leaflets are disclosed. The valves disclosed herein may be integrated into a variety of structures, such as valved conduits and transcatheter stents, and may be constructed of one or more layers. Embodiments herein are also directed to methods of using the same and methods of making the same.
94 Citations
22 Claims
- 1. A valve suitable for implantation into a human or animal comprising one or more leaflets, wherein the one or more leaflets are constructed from a layer of a material which has a surface porosity of 1.9% to less than 15%, wherein the one or more leaflets comprise more than one layer of the material, and wherein at least two layers of the more than one layer are anisotropic.
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11. A valved conduit suitable for implantation into a human or animal comprising:
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a conduit having an inner surface and an outer surface; a valve attached to the inner surface of the conduit at a plurality of attachment points, the valve further comprising one or more leaflets, wherein the one or more leaflets are constructed from a layer of a material which has a surface porosity of 1.9% to less than 15%, wherein the one or more leaflets comprise more than one layer of the material, and wherein at least two layers of the more than one layer are anisotropic. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A valved conduit suitable for implantation into a human or animal comprising:
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a fluoropolymer conduit having an inner surface and an outer surface; a valve attached to the inner surface of the conduit at a plurality of attachment points, wherein the valve includes one or more leaflets, wherein the one or more leaflets are constructed from at least two layers of a fluoropolymer having a surface porosity of 1.9% to about 7% and a total thickness of about 0.045 mm, and wherein the at least two layers are anisotropic with orientations that offset by an angle of at least 10 degrees.
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Specification