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Mitral Prosthesis and Methods for Implantation

  • US 20110208297A1
  • Filed: 10/28/2010
  • Published: 08/25/2011
  • 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 having two or more engagement arms, downstream ends of the engagement arms being coupled to the inner support structure,the prosthesis being configured such that, upon implantation thereof;

    downstream ends of native valve leaflets of the native mitral valve complex,the downstream ends of the engagement arms, anddownstream ends of the prosthetic leaflets,are disposed at a longitudinal distance from one another of less than 3 mm, the longitudinal distance being measured in a direction of a longitudinal axis of the prosthesis.

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