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Mitral annuloplasty rings with sewing cuff

  • US 9,011,529 B2
  • Filed: 04/27/2011
  • Issued: 04/21/2015
  • Est. Priority Date: 02/09/2007
  • Status: Active Grant
First Claim
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1. A mitral annuloplasty ring for correcting a patient'"'"'s mitral valve annulus between the left atrium and left ventricle, comprising:

  • an inner ring body formed of a material that will resist deformation when subjected to the stress imparted thereon by the mitral valve annulus, the inner ring body defining a periphery as seen in plan view with a convex posterior segment adapted to be attached to a posterior aspect of the mitral annulus opposite an anterior segment that is relatively straight compared to the posterior segment adapted to be attached to an anterior aspect of the mitral annulus, the inner ring body periphery being oriented about a central flow axis that defines an upper/inflow side facing toward the left atrium when implanted and a lower/outflow side facing toward the left ventricle when implanted; and

    an outer covering of suture-permeable material surrounding the inner ring body, the outer covering including a solid molded elastomeric tube within a fabric sheath, wherein a main portion of the solid elastomeric tube completely surrounds the inner ring body and the solid elastomeric tube has a bulge that projects outwards from the main portion only on an inflow edge thereof to form a sewing cuff, wherein the inflow side of the outer covering is convexly curved to a radially outer extent of the sewing cuff, while the outflow side has a radially inward step from the sewing cuff to the main portion to form an inner corner.

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