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Reconfiguring tissue features of a heart annulus

  • US 9,795,480 B2
  • Filed: 12/11/2014
  • Issued: 10/24/2017
  • Est. Priority Date: 08/24/2010
  • Status: Active Grant
First Claim
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1. An implantable annulus support for modifying a mitral valve annulus from within a left atrium, comprising:

  • an expandable tubular body having a proximal end, a distal end, a sidewall therebetween and a longitudinal axis, the sidewall comprising a plurality of struts defining a plurality of distally facing apexes, the plurality of struts including a strut segment inclined radially outward away from the longitudinal axis in a distal direction, the tubular body expandable to a radially enlarged engagement configuration having a first width sufficient to span the mitral valve annulus; and

    a plurality of tissue anchors extending in a distal direction from the distally facing apexes, wherein the plurality of tissue anchors extend in the distal direction at least after deployment from a sheath, wherein axial distal advance of the plurality of tissue anchors causes the plurality of tissue anchors to axially engage tissue;

    wherein the implantable annulus support is contractible using a delivery tool from the radially enlarged engagement configuration for engaging tissue of the mitral valve annulus, to a reduced, deployed configuration for modifying mitral valve annulus geometry, andwherein reducing an angle between at least two adjacent struts of the plurality of struts contracts the implantable annulus support and wherein increasing the angle expands the implantable annulus support.

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