Valve endoprosthesis

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/24 (2006.01)

Patent

CA 2695873

The invention relates to a valve endoprosthesis, characterised in that it substantially comprises an extensible stent or frame (1) made of several parts, i.e. an upper cylinder (11), a lower bearing portion (21) having the shape of a truncated cone and a maximum diameter higher than that of the aortic ring and decreasing down to the diameter of the extensible stent or frame (1) in the direction of the proximal end, and arches (31), the upper cylinder (11) being connected to the lower bearing portion (21) via mounts (41) and by a valve (2) connected to said stent (1) by stitches, staples or clips. The invention can particularly be used in the field of medicine, in particular in plastic surgery, and particularly in cardiac surgery, in particular for cardiac prostheses.

La présente invention a pour objet une endoprothèse valvulaire. Endoprothèse caractérisée en ce qu'elle est essentiellement constituée par un stent ou armature extensible (1), constitué en plusieurs parties, à savoir un cylindre supérieur (11), une partie inférieure (21) d'appui de forme tronconique,, dont le diamètre maximal est supérieur à celui de l'anneau aortique et diminue jusqu'à atteindre le diamètre du stent 1 ou armature extensible en direction de l'extrémité proximale, et des arches (31), le cylindre supérieur (11) étant relié à la partie inférieure d'appui (21) par l'intermédiaire de montants (41), et par une valve (2) reliée audit stent (1) par suture, agrafes ou clips. L'invention est plus particulièrement applicable dans le domaine de la médecine, en particulier de la chirurgie réparatrice, et notamment de la chirurgie cardiaque, plus particulièrement des prothèses cardiaques.

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