Heart valve prosthesis
First Claim
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1. A heart valve prosthesis, comprising:
- a stent framework that extends along an axis and which can be transferred from a collapsed state into an expanded state that when implanted has a D-shaped cross-sectional contour comprising a flattened portion that extends from a region of a left fibrous trigone to a region of a right fibrous trigone and an arcuate portion connected thereto, wherein the stent framework has a plurality of struts, which form a plurality of cells connected to one another, anda heart valve, which is secured to the stent framework,characterized in that first struts configured to lie in the region of a left fibrous trigone and in the region of the right fibrous trigone have a smaller thickness than second struts of the stent framework configured to lie on a mitral valve annulus, wherein the first struts provide opposing ends of the flattened portion when in the implanted and expanded state.
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Abstract
A heart valve prosthesis (1), including: a stent framework (2), which can be transferred from a collapsed state into an expanded state, in which the stent framework (2) extends along an axis (A′), wherein the stent framework (2) has a plurality of struts (20, 24), which form a plurality of cells (21a, 21b, 25) connected to one another; and a heart valve (3), which is fixed to the stent framework (2). In accordance with the invention, the thickness (d′) of the struts varies in the peripheral direction (U) of the expanded stent framework (2).
32 Citations
18 Claims
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1. A heart valve prosthesis, comprising:
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a stent framework that extends along an axis and which can be transferred from a collapsed state into an expanded state that when implanted has a D-shaped cross-sectional contour comprising a flattened portion that extends from a region of a left fibrous trigone to a region of a right fibrous trigone and an arcuate portion connected thereto, wherein the stent framework has a plurality of struts, which form a plurality of cells connected to one another, and a heart valve, which is secured to the stent framework, characterized in that first struts configured to lie in the region of a left fibrous trigone and in the region of the right fibrous trigone have a smaller thickness than second struts of the stent framework configured to lie on a mitral valve annulus, wherein the first struts provide opposing ends of the flattened portion when in the implanted and expanded state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification