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Prosthetic heart valve devices, prosthetic mitral valves and associated systems and methods

  • US 9,295,552 B2
  • Filed: 02/20/2015
  • Issued: 03/29/2016
  • Est. Priority Date: 10/19/2011
  • Status: Active Grant
First Claim
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1. A prosthetic device for replacing a native valve having an annulus and native leaflets, the prosthetic device configured to move from a collapsed configuration to an expanded configuration, the prosthetic device comprising:

  • a radially collapsible valve support, the valve support having a longitudinal axis and a lumen in the expanded configuration;

    a plurality of valve leaflets carried by the valve support and configured to allow blood flow through the lumen in a downstream direction and to block fluid flow through the lumen in an upstream direction when the valve support is in the expanded configuration;

    an outer member having, in the expanded configuration, a downstream portion coupled to a downstream portion of the valve support and an upstream portion, the upstream portion of the outer member being a ring-shaped frame in an unbiased expanded state spaced radially outward of the valve support such that an inner wall of the upstream portion of the outer member is separated from the valve support, the upstream portion of the outer member having an outer wall facing laterally and configured to exert an outward force against an inward-facing surface of the native leaflets in the expanded configuration, and the outer member being configured to at least partially conform to a non-circular shape of the annulus; and

    an atrial retainer extending from an upstream region of the upstream portion of the outer member and biased into a deployed shape in which the atrial retainer extends radially outwardly from the upstream region of the outer member, and the atrial retainer being configured to inhibit downstream movement of the prosthetic device.

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