Transcatheter aortic valve repair having improved paravalvular seal

  • US 10,987,236 B1
  • Filed: 12/23/2020
  • Issued: 04/27/2021
  • Est. Priority Date: 12/06/2011
  • Status: Active Grant
First Claim
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1. A transcatheter aortic valve assembly comprising:

  • an outer frame formed from a metallic material;

    an inner frame that engages a prosthetic heart valve having prosthetic leaflets, wherein the inner frame includes a cylindrically extending polymeric inner graft covering extending at least partially radially outwardly of the prosthetic heart valve and radially inwardly of the outer frame for providing sealing to the prosthetic heart valve,wherein the outer frame is secured to the inner graft covering by stitching;

    a first portion of fibers positioned radially outwardly of the outer frame that is configured to form a first sealing interface against the annulus and native valve leaflets of the patient when the first portion of fibers is compressed thereagainst, wherein the first portion of fibers extend radially outwardly of the outer frame,wherein the first portion of fibers is non-metallic; and

    a second portion of fibers carried by the outer frame that is configured to form a second sealing interface against the outer frame when the second portion of fibers is compressed thereagainst,wherein the second portion of fibers is non-metallic,wherein the first portion of fibers and the second portion of fibers are in overlapping radial alignment,wherein the transcatheter aortic valve is configured to be positioned in a patient so that the first sealing interface is in overlapping radial alignment with native valve leaflets of the aorta to seal thereagainst,wherein the valve assembly is free of an outer graft covering between the first portion of fibers and the outer frame,wherein the valve assembly has a radially compressed orientation and a radially expanded orientation,wherein the valve assembly is balloon expandable to the radially expanded orientation and,wherein expansion of the valve assembly is configured to compress the first portion of fibers and the second portion of fibers to form the respective first sealing interface and second sealing interface.

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