Annuloplasty rings for correcting degenerative valvular diseases

a technology for valvular diseases and annuloplasty rings, which is applied in the field of prosthetic annuloplasty rings or sets, can solve the problems of valvular insufficiency wherein the valve does not close, affects the proper functioning of the valve, and affects the function of the valv

Inactive Publication Date: 2009-06-18
EDWARDS LIFESCIENCES CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0023]The set of rings is progressively sized to take into account more of the common pathologies. More specifically, the proportional shapes of each r...

Problems solved by technology

Various diseases and certain genetic defects of the heart valves can impair the proper functioning of the valves.
Improper functioning of a valve can be severely debilitating and even fatal if left untreated, particularly if the diseased valve is the aortic valve (between the left ventricle and the aorta) or the mitral valve (between the left atrium and left ventricle).
The mitral valve and, less frequently, the tricuspid valve, are prone to deformation, such as dilation of the valve annulus, tearing of the chordae tendineae and leaflet prolapse, which results in valvular insufficiency wherein the valve does not close properly and allows for regurgitation or back flow from the left ventricle into the left atrium.
Thus, because prosthetic valves have certain disadvantages that can have serious effects (e.g., mechanical valves carry the risk of thromboembolism and require anticoagulation treatment, and biological valves have limited durability), an improper functioning mitral or tricuspid valve is ideally repaired rather than replaced....

Method used

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  • Annuloplasty rings for correcting degenerative valvular diseases
  • Annuloplasty rings for correcting degenerative valvular diseases
  • Annuloplasty rings for correcting degenerative valvular diseases

Examples

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Embodiment Construction

[0039]The present invention provides a novel set of annuloplasty rings for correcting pathologies resulting in mitral regurgitation.

[0040]FIGS. 10 and 11 are plan and section views of an exemplary annuloplasty ring 70 of the present invention. The ring 70 is shown with a fabric covering 72 over a structural interior support or body 74. Typically a suture-permeable interface 76 fills the space between the covering 72 and interior body 74.

[0041]The ring 70 in the plan view of FIG. 10 has a minor axis dimension B and a major axis dimension A. FIG. 11 shows preferred heights above a datum plane, with the center of the anterior segment rising to height C and the center of the posterior segment rising to height D. The preferred ratio of C / D is about 3:1, with the smallest rings rising to 3 mm on the anterior side and the largest to about 6 mm.

[0042]The interior body 74 of the present invention in one embodiments is desirably made of material(s) that are “generally rigid” and will initiall...

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Abstract

A set of annuloplasty rings progressively sized to take into account more of the common pathologies. The proportional shapes of each ring as the orifice size changes vary. For instance, the larger rings have larger minor axis dimensions relative to their major axis dimensions.

Description

[0001]The present application claims priority under 35 U.S.C. §119(e) to U.S. Provisional Application No. 60 / 828,458, filed Oct. 6, 2006.FIELD OF THE INVENTION[0002]The present invention refers to a prosthetic annuloplasty ring or set of rings, in particular for the mitral annulus, that are progressively proportioned at different orifice sizes.BACKGROUND OF THE INVENTION[0003]The human heart has four valves; the aortic valve, the mitral valve, the pulmonary valve and the tricuspid valve. Various diseases and certain genetic defects of the heart valves can impair the proper functioning of the valves. Improper functioning of a valve can be severely debilitating and even fatal if left untreated, particularly if the diseased valve is the aortic valve (between the left ventricle and the aorta) or the mitral valve (between the left atrium and left ventricle). The common defects and diseases affecting each of these valves, and the treatments thereof, are typically different.[0004]The mitra...

Claims

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Application Information

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IPC IPC(8): A61F2/24
CPCA61F2/2448Y10T29/49A61F2230/0034A61F2230/0065A61F2250/0018A61F2250/0037A61F2/2409A61F2/2445
Inventor CARPENTIER, ALAINADAMS, DAVID
Owner EDWARDS LIFESCIENCES CORP
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