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Valve cuff support

  • US 10,206,777 B2
  • Filed: 12/11/2015
  • Issued: 02/19/2019
  • Est. Priority Date: 06/28/2012
  • Status: Active Grant
First Claim
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1. A prosthetic heart valve, comprising:

  • a stent having a collapsed condition and an expanded condition, the stent having a proximal end, a distal end, a plurality of commissure features, and a plurality of cells, each cell being formed by a plurality of struts;

    a valve assembly secured to the stent, the valve assembly including a cuff and a plurality of leaflets; and

    an underwire disposed around a perimeter of the stent such that the cuff is disposed between the underwire and the plurality of leaflets, the underwire defining a parabolic shape including a descending portion extending toward the proximal end of the stent, an ascending portion extending toward one of the commissure features, and an intermediate portion between the descending portion and the ascending portion, the underwire being sutured to the cuff and to at least one of the plurality of leaflets with a repeating pattern that extends along the descending portion, the ascending portion, and the intermediate portion, the pattern being disposed solely between the commissure features and the proximal end of the stent.

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