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Sealing member for prosthetic heart valve

  • US 10,722,353 B2
  • Filed: 08/16/2018
  • Issued: 07/28/2020
  • Est. Priority Date: 08/21/2017
  • Status: Active Grant
First Claim
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1. An implantable prosthetic valve comprising:

  • an annular frame comprising an inflow end and an outflow end and being radially collapsible and expandable between a radially collapsed configuration and a radially expanded configuration, the frame defining an axial direction extending from the inflow end to the outflow end;

    a leaflet structure positioned within the frame and secured thereto; and

    an annular outer skirt positioned around an outer surface of the frame, wherein the outer skirt comprises;

    an inflow edge portion secured to the frame at a first location;

    an outflow edge portion secured to the frame at a second location;

    an intermediate portion between the inflow edge portion and the outflow edge portion, wherein the intermediate portion comprises a plurality of circumferentially spaced, axially extending slits that define a plurality of skirt segments between each pair of slits, wherein each skirt segment comprises first and second opposing edge portions; and

    a plurality of tethers, wherein each tether is secured to the first edge portion of a skirt segment at a first end of the tether, extends across the second edge portion of the same skirt segment, and is secured to the frame or an adjacent skirt segment at a second end of the tether such that when the frame is expanded to the radially expanded configuration, the first edge portion is pulled in a circumferential direction toward the second edge portion by the tether.

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