Percutaneous annuloplasty system with anterior-posterior adjustment
First Claim
1. A method of percutaneous transcatheter repair of a heart valve, the method comprising:
- providing two biasing elements, a plurality of anchors, and a body member within an adjustable annuloplasty ring,wherein the two biasing elements are disposed between a first posterior region and a second posterior region of the body member and are separated by an anterior region, the two biasing elements being configured to adjust an anterior-posterior distance of the adjustable annuloplasty ring;
positioning a catheter percutaneously into a heart;
inserting the adjustable annuloplasty ring configured in an elongate insertion geometry through the catheter and into the heart;
transitioning the annuloplasty ring from the elongate insertion geometry to an annular operable geometry;
actuating an expansion tool to expand the annuloplasty ring in the annular operable geometry to an expanded state, including expanding the two biasing elements of the annuloplasty ring, and thereby increasing the anterior-posterior distance of the annuloplasty ring,wherein the two biasing elements bias the annuloplasty ring in the annular operable geometry toward a contracted state such that expansion of the annuloplasty ring to the expanded state stores a potential energy in the two biasing elements;
positioning the annuloplasty ring in abutment with an annulus of a target valve of the heart;
deploying the plurality of anchors fabricated on an anchor ribbon disposed within an interior of the annuloplasty ring;
engaging the plurality of anchors of the annuloplasty ring with the annulus of the target valve to fasten the annuloplasty ring to the annulus; and
releasing the expansion tool to release the two biasing elements of the annuloplasty ring and effectuate transition of the annuloplasty ring in the annular operable geometry from the expanded state to the contracted state to decrease the anterior-posterior distance of the annuloplasty ring and thereby decrease an anterior-posterior distance of the target valve to improve leaflet coaptation of the target valve and reduce regurgitation through the target valve,wherein the two biasing elements release the stored potential energy to force movement of the first posterior region of the annuloplasty ring toward the second posterior region of the annuloplasty ring.
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Accused Products
Abstract
Apparatus, systems, and methods are provided for repairing heart valves through percutaneous transcatheter delivery and fixation of annuloplasty rings to heart valves. An annuloplasty ring includes an outer hollow body member including a plurality of regions. Adjacent regions cooperate with one another to change the body member from an elongate insertion geometry to an annular operable geometry. Adjacent regions are coupled by a biasing element or a stepped connector to allow expansion to an expanded state and contraction to a contracted state in the annular operable geometry. The annuloplasty ring also includes an internal anchor member located at least partially within the body member and having a plurality of anchors configured to attach the annuloplasty ring to tissue of a heart valve annulus. An angled ring closure lock allows coupling of the ends of an annuloplasty ring at an apex of a D-shape annular operable geometry.
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Citations
12 Claims
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1. A method of percutaneous transcatheter repair of a heart valve, the method comprising:
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providing two biasing elements, a plurality of anchors, and a body member within an adjustable annuloplasty ring, wherein the two biasing elements are disposed between a first posterior region and a second posterior region of the body member and are separated by an anterior region, the two biasing elements being configured to adjust an anterior-posterior distance of the adjustable annuloplasty ring; positioning a catheter percutaneously into a heart; inserting the adjustable annuloplasty ring configured in an elongate insertion geometry through the catheter and into the heart; transitioning the annuloplasty ring from the elongate insertion geometry to an annular operable geometry; actuating an expansion tool to expand the annuloplasty ring in the annular operable geometry to an expanded state, including expanding the two biasing elements of the annuloplasty ring, and thereby increasing the anterior-posterior distance of the annuloplasty ring, wherein the two biasing elements bias the annuloplasty ring in the annular operable geometry toward a contracted state such that expansion of the annuloplasty ring to the expanded state stores a potential energy in the two biasing elements; positioning the annuloplasty ring in abutment with an annulus of a target valve of the heart; deploying the plurality of anchors fabricated on an anchor ribbon disposed within an interior of the annuloplasty ring; engaging the plurality of anchors of the annuloplasty ring with the annulus of the target valve to fasten the annuloplasty ring to the annulus; and releasing the expansion tool to release the two biasing elements of the annuloplasty ring and effectuate transition of the annuloplasty ring in the annular operable geometry from the expanded state to the contracted state to decrease the anterior-posterior distance of the annuloplasty ring and thereby decrease an anterior-posterior distance of the target valve to improve leaflet coaptation of the target valve and reduce regurgitation through the target valve, wherein the two biasing elements release the stored potential energy to force movement of the first posterior region of the annuloplasty ring toward the second posterior region of the annuloplasty ring. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification