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Prosthetic valve with aligned inner and outer frames

  • US 10,524,903 B2
  • Filed: 07/10/2019
  • Issued: 01/07/2020
  • Est. Priority Date: 02/05/2015
  • Status: Active Grant
First Claim
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1. An expandable prosthetic valve for implantation within a native heart valve, the prosthetic valve being configured for expansion from a radially-contracted state to a radially-expanded state, wherein the prosthetic valve comprises:

  • an expandable annular outer frame formed at least partially of outer frame struts intersecting at outer frame junctions, the annular outer frame comprising a downstream end and an upstream end opposite from the downstream end, wherein the outer frame struts along the downstream end of the annular outer frame are arranged in a first undulating configuration in which the outer frame struts extend between a first plurality of peaks and a first plurality of troughs positioned downstream from the first plurality of peaks; and

    an expandable inner frame situated at least partially within the annular outer frame and formed at least partially of inner frame struts intersecting at inner frame junctions, the inner frame comprising a downstream end and an upstream end opposite from the downstream end,wherein a plurality of inner frame tissue anchors are configured to extend radially-outward from the inner frame, andwherein the inner frame struts along the downstream end of the inner frame are arranged in a second undulating configuration in which the inner frame struts extend between a second plurality of peaks and a second plurality of troughs positioned downstream from the second plurality of peaks,wherein the annular outer frame and the inner frame are configured and interconnected in a manner such that radial expansion of the prosthetic valve from the radially-contracted state to the radially-expanded state decreases a distance between the downstream end of the annular outer frame and the downstream end of the inner frame, andwherein at least one of the first plurality of troughs is configured to be situated downstream from at least one of the second plurality of peaks.

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