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Adjustable annuloplasty ring activation system

  • US 20070135913A1
  • Filed: 12/14/2006
  • Published: 06/14/2007
  • Est. Priority Date: 06/29/2004
  • Status: Abandoned Application
First Claim
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1. An adjustable annuloplasty device, comprising:

  • a body member comprising a shape memory material, the body member configured to be placed at or near a base of a valve of a heart;

    a hysteretic material configured to undergo magnetic hysteresis in response to a first activation energy, the hysteretic material being in thermal communication with the shape memory material;

    wherein the body member has a first size of a body member dimension in a first configuration and a second size of the body member dimension in a second configuration; and

    wherein, when the body member is in position in the heart, a change from the first configuration to the second configuration changes a size of a dimension of an annulus of the valve.

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