Mitral valve annuloplasty ring for molding left ventricle...

A - Human Necessities – 61 – F

Patent

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A61F 2/24 (2006.01)

Patent

CA 2467766

An annuloplasty ring for correcting maladies of the mitral annulus that not only reshapes the annulus but also reconfigures the adjacent left ventricular muscle wall. The ring may be continuous and is made of a relatively rigid material, such as Stellite. The ring has a generally oval shape that is three- dimensional at least on the posterior side. A posterior portion of the ring rises or bows upward from adjacent sides to pull the posterior aspect of the native annulus farther up than its original, healthy shape. In doing so, the ring also pulls the ventricular wall upward which helps mitigate some of the effects of congestive heart failure. Further, one or both of the posterior and anterior portions of the ring may also bow inward.

L'invention concerne une bague d'annuloplastie pour corriger des maladies de l'anneau mitral qui non seulement refaçonne l'anneau mais également reconfigure la paroi du muscle ventriculaire gauche adjacente. La bague peut être continue et constituée d'une matière relativement rigide telle que la Stellite. La bague présente une forme d'une manière générale ovale laquelle est tridimensionnelle au moins sur le côté postérieur. Une partie postérieure de la bague monte ou se bombe vers le haut à partir des côtés adjacents pour tirer l'aspect postérieur de l'anneau natif davantage vers le haut que dans sa forme saine d'origine. Ce faisant, la bague tire également la paroi ventriculaire vers le haut ce qui aide à éliminer certains des effets de l'insuffisance cardiaque congestive. De plus, une des parties postérieures et antérieures ou les deux parties de la bague peuvent également se bomber vers l'intérieur.

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