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Expandable Support Frame and Medical Device

  • US 20180055635A1
  • Filed: 11/06/2017
  • Published: 03/01/2018
  • Est. Priority Date: 02/11/2013
  • Status: Active Grant
First Claim
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1. A medical device for regulating fluid flow through a body vessel of a patient, comprising:

  • an expandable support frame having a longitudinal axis, an outer circumference, an unexpanded configuration, the support frame comprising;

    a first connector segment comprising substantially parallel first and second struts and a first connecting bar extending between and joining the first and second struts;

    a second connector segment disposed substantially opposite the first connector segment with respect to said longitudinal axis, the second connector segment comprising substantially parallel third and fourth struts and a second connecting bar extending between and joining the third and fourth struts;

    a third connector segment disposed circumferentially adjacent the first and second connector segments;

    a fourth connector segment disposed substantially opposite the third connector segment with respect to said longitudinal axis;

    a proximal portion defining a first circumferential serpentine path joined to the first, second, third, and fourth connector segments; and

    a distal portion defining a second circumferential serpentine path joined to the first, second, third, and fourth connector segments and comprising a first connector strut extending between and joining the first and third connector segments, a second connector strut extending between and joining the second and third connector segments, a third connector strut extending between and joining the first and fourth connector segments, and a fourth connector strut extending between and joining the second and fourth connector segments, each of the connector struts comprising a curvilinear strut that includes a straight portion;

    a first leaflet attached to the support frame along an attachment pathway extending along the first and second connector struts and along a first portion of the first connector segment and a first portion of the second connector segment, the first leaflet having a first free edge and a first inner surface; and

    a second leaflet attached to the support frame along a second attachment pathway extending along the third and fourth connector struts and along a second portion of the first connector segment and a second portion of the second connector segment, the second leaflet having a second free edge and a second inner surface;

    wherein the first and second free edges cooperatively define a valve orifice.

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