Transcatheter valve repair having improved paravalvular seal

  • US 11,129,735 B2
  • Filed: 02/09/2021
  • Issued: 09/28/2021
  • Est. Priority Date: 12/06/2011
  • Status: Active Grant
First Claim
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1. An endovascular transcatheter valve assembly comprising:

  • an outer frame,wherein the outer frame is formed from a metallic material and defines an open cell configurationwherein the outer frame includes an inflow end at a proximal portion thereof and an outflow end at a distal portion thereof,wherein the outer frame is formed by a plurality of struts that adjoin each other at the inflow end to form apices;

    an inner frame that engages a prosthetic heart valve having prosthetic leaflets, wherein the inner frame includes a cylindrically extending 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 proximal portion of the outer frame;

    an outer seal for preventing paravalvular leaks that at least partially extends over at least two most proximal rows of cells formed in the outer frame,wherein the outer seal is formed of outwardly extending fibers positioned externally to the outer frame,wherein the valve assembly has a radially compressed orientation and a radially expanded orientation,wherein the valve assembly is configured to press some of the fibers against native leaflets of the aorta of the patientwherein an end of the apices of the outer frame that are most proximal are uncovered by the outer seal and the graft covering,wherein the end of the most proximal apices of the outer frame extends more proximally than a proximal end of the outer seal.

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