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It has an anterior, posterior, and septal segment and each of these segments are made to conform to the anterior, posterior, and septal sections of the native tricuspid annulus
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Summary This invention involves two types of tricuspid annuloplasty rings, which are designed specifically for the tricuspid annulus. The rings range in stiffness from complete flexibility, to some components being flexible and some rigid, to complete rigidity. The first type of ring is made of a rigid material and is triangular in shape. The second type is an adjustable annuloplasty ring. Adjustment of the ring can be made during or after the surgery so that it can conform to the geometry of the patients’ tricuspid annulus. The acute angle between the two edges can be adjusted by reducing the length of the third edge. This adjustability characteristic allows for independent control over individual leaflets. Since tricuspid regurgitation is usually the result of the leaflets not being in sync with each other, this adjustability feature helps the surgeon bring the leaflets in sync. Both of these rings are designed to prevent any manipulation to the AV node, which could cause heart block.