Reconfiguring tissue features of a heart annulus
First Claim
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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Accused Products
Abstract
Among other things, a tool to attach a support to a heart valve annulus includes a stabilizing body that includes features to stabilize an axial position of the tool relative to the annulus, and an attachment device connected to the stabilizing body, the stabilizing body and the attachment device being movable relative to one another under control from a location remote from the tool. The support may have an expandable tubular body having a plurality of struts, a plurality of tissue anchors extending from distally facing apexes in a distal direction post-deployment, wherein axial distal advance of the implantable annulus support causes the plurality of tissue anchors to axially engage tissue, and the implantable annulus support is self-contractible from a radially enlarged engagement configuration for engaging tissue of the mitral valve annulus, to a reduced, deployed configuration for modifying mitral valve annulus geometry.
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Citations
10 Claims
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1. An implantable annulus support for modifying a mitral valve annulus from within a left atrium, comprising:
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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, and wherein 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification