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Mitral prosthesis and methods for implantation

  • US 10,433,956 B2
  • Filed: 10/28/2010
  • Issued: 10/08/2019
  • Est. Priority Date: 02/24/2010
  • Status: Active Grant
First Claim
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1. Apparatus comprising a mitral valve prosthesis for implantation at a native mitral valve complex of a subject, the prosthesis comprising:

  • an inner support structure having a downstream section and an upstream section, the upstream section having a cross-sectional area greater than the downstream section, the inner support structure being configured to be positioned at least partially on an atrial side of the native valve complex, and to prevent the prosthesis from being dislodged into a left ventricle by applying an axial force directed toward the left ventricle;

    a prosthetic valve having prosthetic valve leaflets coupled to the inner support structure; and

    an outer support structure coupled to the inner support structure, the outer support structure having more than two arms, wherein the more than two arms of the outer support structure extend in an upstream direction, are disposed radially outside of the inner support structure, and at least partially overlap the inner support structure, wherein a first arm of the more than two arms is longer than a second arm of the more than two arms, and wherein at least the first arm is configured to clamp portions of leaflets of the native valve between the inner support structure and the first arm.

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