Prosthetic Valve with Sealing Members and Methods of Use Thereof
First Claim
1. A prosthetic heart valve assembly comprising:
- a prosthetic valve including a circumferential wall having an inner surface and an outer surface, wherein the prosthetic valve is radially contractible and expandable for transcatheter delivery to a native annulus; and
two or more sealing members mounted on the prosthetic valve and substantially evenly placed around the prosthetic valve, wherein the sealing members are configured to engage gaps existing between the implanted prosthesis and the native valve to prevent paravalvular leakage.
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Accused Products
Abstract
Embodiments of the present invention provide prosthetic valves having sealing members on the external surface thereof. The prosthetic heart valves of the present invention are preferably delivered by catheter directly through the apex of the heart or by other close range transcatheter delivery methods. Because these methods of implantation require a shorter length of catheter, a prosthetic valve can be more accurately oriented in the desired implantation location. Fluoroscopy can be used to further assist in orientation of the valve. The sealing members of the present invention can be positioned on the prosthetic valve such that, when the prosthetic valve is implanted in a native annulus, each provided sealing member is located adjacent to a commissural point of the native valve leaflets. Because the sealing members are precisely oriented on the prosthetic valve, a physician can ensure that the sealing members are aligned with the commissural points of the native valve leaflets. In embodiments of the present invention, the prosthetic valve can have a waisted middle section, and the sealing members can be located in the waisted middle section such that the crimped diameter of the prosthetic valve is not negatively impacted by the sealing members.
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Citations
20 Claims
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1. A prosthetic heart valve assembly comprising:
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a prosthetic valve including a circumferential wall having an inner surface and an outer surface, wherein the prosthetic valve is radially contractible and expandable for transcatheter delivery to a native annulus; and two or more sealing members mounted on the prosthetic valve and substantially evenly placed around the prosthetic valve, wherein the sealing members are configured to engage gaps existing between the implanted prosthesis and the native valve to prevent paravalvular leakage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A prosthetic heart valve assembly comprising:
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a prosthetic valve including a circumferential wall having an inner surface and an outer surface, wherein the prosthetic valve comprises an inflow section, an outflow section, and a waisted middle section having an expanded diameter less than the expanded diameters of the inflow section and the outflow section; at least one commissural seal pad mounted on the prosthetic valve at a location corresponding to the commissural points of the leaflets of a native valve, wherein the commissural seal pads are configured to prevent paravalvular leak, wherein the at least one commissural seal pad is positioned in the waisted middle section of the prosthetic valve. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method of using a prosthetic valve, the method comprising:
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obtaining a prosthetic valve comprising; a prosthetic valve including a circumferential wall having an inner surface and an outer surface, wherein the prosthetic valve is radially contractible and expandable for transcatheter delivery to a native annulus; and two or more sealing members mounted on the prosthetic valve and substantially evenly placed around the prosthetic valve, wherein the sealing members are configured to engage gaps existing between the implanted prosthesis and the native valve to prevent paravalvular leakage; and radially contracting the prosthetic valve so that the one or more sealing members do not extend beyond the maximum diameter of the outer surface of the prosthetic valve. - View Dependent Claims (18, 19, 20)
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Specification