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Abstract

An annuloplasty system is disclosed that respects the uniqueness of each anterior mitral or tricuspid valve leaflet as the appropriate template for an annuloplasty ring. Each dilated tissue annulus is brought to a precise anterior mitral or tricuspid leaflet perimeter dimension, rather than to the dimension of a specific-sized annuloplasty ring. Thus, precise measured plication of the dilated mitral or tricuspid annulus is possible in every case, resulting in mitral or tricuspid repair with greater predictability and reproduceability. Substantially rigid suture support segments to be placed at least partially circumferentially about an anatomical structure, such as a heart valve, are delivered to the heart valve by a plurality of linked-together segment holders. The segment holders also function as sizing elements for precisely and easily measuring the perimeter of an anterior mitral or tricuspid leaflet, for example. The segments are enclosed in a double layer of autologous viable pericardium, according to one embodiment, forming a pericardial tube. Together, the pericardial tube and the segments create an annuloplasty ring presenting significant advantages over the prior art. Devices and methods according to the invention can also be used to size, stabilize, and/or reduce the circumference of other anatomical structures, not just mitral and tricuspid valves.

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First Claim