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Partially-adjustable annuloplasty structure

  • US 9,011,530 B2
  • Filed: 06/23/2011
  • Issued: 04/21/2015
  • Est. Priority Date: 12/22/2008
  • Status: Expired due to Fees
First Claim
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1. Apparatus, comprising:

  • an annuloplasty structure configured for implantation along an annulus of an atrioventricular valve of a heart of a subject, the structure comprising;

    a sleeve defining a lumen therethrough;

    an elongate coiled element disposed entirely within the lumen of the sleeve, the coiled element comprising;

    at least one first coiled portion having coils that are flexible and longitudinally compressible; and

    at least one second coiled portion in series with the first coiled portion, the second coiled portion having coils that are flexible and less longitudinally compressible than the coils of the first coiled portion;

    a contracting member disposed within a lumen of the coiled element, the contracting member being slidable through the first and second coiled portions of the coiled element in order to adjust a perimeter of the annuloplasty structure; and

    a contracting mechanism coupled to a portion of the contracting member, the contracting mechanism being;

    attached to the coiled element at the second coiled portion, andconfigured to adjust the perimeter of the annuloplasty structure by applying a force to the contracting member,wherein a length of the second coiled portion is 10-50 mm.

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