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Prosthetic heart valve having multi-level sealing member

  • US 10,722,354 B2
  • Filed: 12/10/2018
  • Issued: 07/28/2020
  • Est. Priority Date: 02/12/2016
  • Status: Active Grant
First Claim
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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.

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