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Prosthetic valve with S-shaped tissue anchors

  • US 10,667,908 B2
  • Filed: 07/20/2018
  • Issued: 06/02/2020
  • Est. Priority Date: 02/05/2015
  • Status: Active Grant
First Claim
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1. A prosthetic valve for implantation within a native mitral valve, the prosthetic valve comprising:

  • an annular valve body; and

    a plurality of ventricular anchoring legs, each ventricular anchoring leg comprising;

    a proximal leg end secured to the annular valve body, anda terminal leg end opposite from the proximal leg end,wherein a length of each ventricular anchoring leg that extends between the proximal and terminal leg ends thereof is configured to extend radially outward from the annular valve body,wherein at least one ventricular anchoring leg includes;

    a first surface extending between the proximal leg end and terminal leg end of the at least one ventricular anchoring leg, the first surface having a first curved leg portion situated between the proximal leg end and the terminal leg end, wherein the first curved leg portion is configured to have a convex arrangement with respect to a longitudinal axis of the annular valve body, anda second surface extending between the proximal leg end and terminal leg end of the at least one ventricular anchoring leg, the second surface being situated on an opposite side of the ventricular anchoring leg from the first surface and having a second curved leg portion situated between the first curved leg portion and the terminal leg end, wherein the second curved leg portion is configured to have a concave arrangement with respect to the longitudinal axis of the annular valve body,wherein at least one of the first curved leg portion and the second curved leg portion of the at least one ventricular anchoring leg is situated at the same angular position about the longitudinal axis of the annular valve body as the proximal leg end of the at least one ventricular anchoring leg, andwherein a portion of the annular valve body situated downstream from the proximal leg end of the at least one ventricular anchoring leg is configured to remain in a radially-reduced configuration while the at least one ventricular anchoring leg extends radially outward from the annular valve body.

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