Percutaneous transvalvular intraannular band for mitral valve repair
First Claim
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1. An intraannular heart valve implant comprising:
- a body having first and second ends, first and second anchoring portions, first and second shoulder portions, and a convex shaped central portion, the first anchoring portion located proximate the first end, the second anchoring portion located proximate the second end, the first shoulder portion located proximate the first anchoring portion and the central portion, the second shoulder portion located proximate the second anchoring portion and the central portion,wherein the central portion comprises a narrowed portion narrower than part of the first and second shoulder portions to reduce resistance to blood flow, and wherein the first and second shoulder portions each comprise a narrowed portion narrower than the first and second anchoring portions to reduce resistance to blood flow,wherein a portion of the body is dimensioned for attachment within an intraannular plane of a heart valve annulus,wherein part of the implant is configured to be positioned within the intraannular plane of the heart valve annulus such that the convex shaped central portion extends out of a reference plane including a portion of the first and second ends, and such that the convex shaped central portion extends transversely across a coaptive edge formed by two or three valve leaflets, andwherein the implant does not comprise an annuloplasty ring.
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Abstract
Mitral valve prolapse and mitral regurgitation can be treating by implanting in the mitral annulus a transvalvular intraannular band. The band has a first end, a first anchoring portion located proximate the first end, a second end, a second anchoring portion located proximate the second end, and a central portion. The central portion is positioned so that it extends transversely across a coaptive edge formed by the closure of the mitral valve leaflets. The band may be implanted via translumenal access or via thoracotomy.
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Citations
20 Claims
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1. An intraannular heart valve implant comprising:
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a body having first and second ends, first and second anchoring portions, first and second shoulder portions, and a convex shaped central portion, the first anchoring portion located proximate the first end, the second anchoring portion located proximate the second end, the first shoulder portion located proximate the first anchoring portion and the central portion, the second shoulder portion located proximate the second anchoring portion and the central portion, wherein the central portion comprises a narrowed portion narrower than part of the first and second shoulder portions to reduce resistance to blood flow, and wherein the first and second shoulder portions each comprise a narrowed portion narrower than the first and second anchoring portions to reduce resistance to blood flow, wherein a portion of the body is dimensioned for attachment within an intraannular plane of a heart valve annulus, wherein part of the implant is configured to be positioned within the intraannular plane of the heart valve annulus such that the convex shaped central portion extends out of a reference plane including a portion of the first and second ends, and such that the convex shaped central portion extends transversely across a coaptive edge formed by two or three valve leaflets, and wherein the implant does not comprise an annuloplasty ring. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An intraannular heart valve implant comprising:
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an intraannular band dimensioned for attachment within an intraannular plane of a mitral valve annulus, wherein the band comprises a body comprising a first end, a second end, and a convex shaped central portion; wherein a portion of the intraannular band is configured to be positioned within the intraannular plane of the mitral valve annulus such that the convex shaped central portion extends transversely across a coaptive edge formed by the mitral valve leaflets, and such that the convex shaped central portion is convex in the direction of the ventricular side of the intraannular plane to support the leaflets and elevate the position of the coaptive edge in the direction of the ventricle during mitral valve closure, and wherein the band does not comprise an annuloplasty ring. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An intraannular heart valve implant comprising:
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an intraannular band comprising a body having a first end, a first anchoring portion located proximate the first end, a second end, a second anchoring portion located proximate the second end, and a convex shaped central portion, wherein the central portion is displaced out of a reference plane containing the first and second ends, and wherein said reference plane is configured to coincide with an intraannular plane of the mitral valve when the band is implanted; wherein a portion of the intraannular band is configured to be positioned within the intraannular plane of the mitral valve annulus such that the intraannular band extends transversely across a coaptive edge formed by the closure of the mitral valve leaflets during systole, and such that the central portion is convex in the direction of the left ventricle relative to the reference plane to elevate the position of the coaptive edge in the direction of the ventricle during valve closure, and wherein attaching the first and second anchoring portions does not affect the size and shape of the mitral annulus. - View Dependent Claims (18, 19, 20)
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Specification