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Valve prosthesis

  • US 9,937,035 B2
  • Filed: 07/14/2015
  • Issued: 04/10/2018
  • Est. Priority Date: 03/30/2012
  • Status: Active Grant
First Claim
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1. A valve prosthesis comprising:

  • a valve body including a first leaflet, a second leaflet, a third leaflet, and a fourth leaflet; and

    a self-expanding frame,wherein the first leaflet is attached to the second leaflet at a first commissure point, the second leaflet is attached to the third leaflet at a second commissure point, the third leaflet is attached to the fourth leaflet at a third commissure point, the fourth leaflet is attached to the first leaflet at a fourth commissure point,wherein the first, second, third and fourth commissure points are sewn to the frame,wherein a first angle is formed between the first commissure point and the second commissure point with a vertex of the first angle being a center of the frame, a second angle is formed between the second commissure point and the third commissure point with a vertex of the second angle being the center of the frame, a third angle is formed between the third commissure point and the fourth commissure point with a vertex of the third angle being the center of the frame, and a fourth angle is formed between the fourth commissure point and the first commissure point with a vertex of the fourth angle being the center of the frame, such that the vertex of each of the first, second, third and fourth angles are at the center of the frame, andwherein the second angle and the fourth angle are each approximately 170 degrees and are greater than the first angle and the third angle.

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