Prosthetic heart valve having multi-level sealing member
First Claim
1. An implantable prosthetic valve comprising:
- an annular frame;
a leaflet structure positioned within the frame; and
an annular outer skirt positioned around an outer surface of the frame, the outer skirt comprising an inflow edge secured to the frame and an outflow edge, wherein the outflow edge defines one or more upper openings allowing retrograde blood to flow between the outer surface of the frame and the outer skirt to create a plurality of regions of turbulent blood flow along the outside of the prosthetic valve; and
wherein the outer skirt comprises a fabric formed with fringes that perturb the flow of blood along the outside of the prosthetic valve.
1 Assignment
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Accused Products
Abstract
Embodiments of a prosthetic heart valve are disclosed. An implantable prosthetic valve may be radially collapsible to a collapsed configuration and radially expandable to an expanded configuration. The prosthetic valve may comprise an annular frame, a leaflet structure positioned within the frame and a plurality of outer skirts positioned around an outer surface of the frame, each outer skirt comprising an inflow edge secured to the frame and an outflow edge secured at intervals to the frame. The plurality of outer skirts may include a first outer skirt and a second outer skirt, wherein in the expanded configuration the first and second outer skirts include openings unsecured to the frame between the intervals. The inflow edge of the first annular outer skirt may be secured to the frame with sutures including radiopaque material. The first annular outer skirt may include radiopaque dye.
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Citations
20 Claims
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1. An implantable prosthetic valve comprising:
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an annular frame; a leaflet structure positioned within the frame; and an annular outer skirt positioned around an outer surface of the frame, the outer skirt comprising an inflow edge secured to the frame and an outflow edge, wherein the outflow edge defines one or more upper openings allowing retrograde blood to flow between the outer surface of the frame and the outer skirt to create a plurality of regions of turbulent blood flow along the outside of the prosthetic valve; and wherein the outer skirt comprises a fabric formed with fringes that perturb the flow of blood along the outside of the prosthetic valve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An implantable prosthetic valve, comprising:
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an annular frame; a leaflet structure positioned within the frame; a sealing member positioned around an outer surface of the frame, the sealing member extending continuously around an entire circumference of the frame, the sealing member comprising an inflow edge secured to the frame and an outflow edge; and wherein the sealing member comprises a fabric formed with fringes that perturb the flow of blood along the outside of the prosthetic valve. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification