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Implantable device for placement in a vessel having a variable size

  • US 8,211,165 B1
  • Filed: 01/08/2009
  • Issued: 07/03/2012
  • Est. Priority Date: 01/08/2008
  • Status: Active Grant
First Claim
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1. A device for implantation in a body vessel, the device having a lengthwise axis and comprising:

  • a hub member;

    a plurality of flexible struts, each strut having a first end attached to the hub member and a second end, wherein the struts are spring-biased to diverge from the hub member;

    a frame member extending only partially along a circumference of the device about said lengthwise axis and at an angle with respect to said lengthwise axis from a first attachment point with a first of the plurality of struts to a second attachment point with a second of the plurality of struts, wherein the frame member contacts at least a third of the plurality of struts; and

    a leaflet having a perimeter, a first portion of the perimeter extending along and continuously attached to the frame member from the first attachment point to the second attachment point and a second portion of the perimeter free of contact with the frame member;

    wherein the leaflet is deformable between a first position allowing fluid flow in a first, antegrade direction and a second position restricting fluid flow in a second, retrograde direction.

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