Paravalvular leak protection
First Claim
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1. A prosthetic heart valve, comprising:
- a collapsible and expandable stent having a proximal end, and a distal end, the stent in an expanded condition having a minimum diameter and a maximum diameter, the maximum diameter being greater than the minimum diameter;
a cuff coupled to the stent and having a first edge and a second edge;
a valve assembly including a plurality of leaflets coupled to at least one of the stent or the cuff; and
a toroid-shaped conformable band formed of a braided metal fabric having strands, and having an inner surface disposed near the perimeter of the stent adjacent the plurality of leaflets and an outer surface adapted for contacting body tissue, the conformable band being disposed between the first edge and the second edge of the cuff, being spaced away from the proximal end of the stent, and having an outer diameter that is greater than the minimum diameter and less than the maximum diameter, and being configured to fill gaps between the stent and the body tissue, the conformable band and the cuff comprising different materials.
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Abstract
A prosthetic heart valve includes a collapsible and expandable stent having a proximal end and a distal end, and a collapsible and expandable valve assembly, the valve assembly including a plurality of leaflets connected to at least one of the stent and a cuff. The heart valve further includes a conformable band disposed about the perimeter of the stent near the proximal end for filling gaps between the collapsible prosthetic heart valve and a native valve annulus.
167 Citations
15 Claims
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1. A prosthetic heart valve, comprising:
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a collapsible and expandable stent having a proximal end, and a distal end, the stent in an expanded condition having a minimum diameter and a maximum diameter, the maximum diameter being greater than the minimum diameter; a cuff coupled to the stent and having a first edge and a second edge; a valve assembly including a plurality of leaflets coupled to at least one of the stent or the cuff; and a toroid-shaped conformable band formed of a braided metal fabric having strands, and having an inner surface disposed near the perimeter of the stent adjacent the plurality of leaflets and an outer surface adapted for contacting body tissue, the conformable band being disposed between the first edge and the second edge of the cuff, being spaced away from the proximal end of the stent, and having an outer diameter that is greater than the minimum diameter and less than the maximum diameter, and being configured to fill gaps between the stent and the body tissue, the conformable band and the cuff comprising different materials. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A prosthetic heart valve, comprising:
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a collapsible and expandable stent having a proximal end, and a distal end, the stent in an expanded condition having a maximum diameter; a valve assembly including a plurality of leaflets coupled to the stent, and a cuff coupled to the stent, the cuff having a first edge and a second edge; and a toroid-shaped conformable band formed of a braided metal fabric having strands, and being disposed on a surface of the stent between the proximal and distal ends thereof, the band being disposed between the first edge and the second edge of the cuff, being spaced away from the proximal end of the stent, and being adapted to create a fluid seal about the circumference of the stent with an adjacent body tissue, the conformable band having an outer diameter that is less than the maximum diameter of the stent in the expanded condition. - View Dependent Claims (13, 14, 15)
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Specification