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Valve prosthesis systems and methods

  • US 7,753,949 B2
  • Filed: 10/10/2007
  • Issued: 07/13/2010
  • Est. Priority Date: 02/23/2007
  • Status: Active Grant
First Claim
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1. A valve prosthesis, comprising:

  • a. a resilient ring defining an annular opening;

    b. a plurality of leaflet membranes mounted with respect to the resilient ring; and

    c. a plurality of positioning elements movably mounted with respect to the resilient ring, each of the positioning elements defining a first tissue engaging region, a connecting region, and a second tissue engaging region spaced from the first tissue engaging region, wherein the connecting region connects the first and second tissue engaging regions;

    wherein each positioning element of the plurality of positioning elements is inverted by rotating relative to the resilient ring between a first position in which each of the first and second tissue engaging regions is inwardly directed towards the annular opening for facilitating positioning of the valve prosthesis within a delivery catheter, and a second position in which each of the first and second tissue engaging regions is outwardly directed towards an anatomical wall for engaging tissue; and

    wherein each positioning element of the plurality of positioning elements is inverted by rotating in a first direction away from the first position and toward and into the second position to define an inversion plane.

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