A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 2/24 (2006.01)
Patent
CA 2258967
A mitral valve prosthesis consists of a support housing (stent) with a large base ring that bears two stays which substantially extend in the ring axis direction and are connected by curved walls for securing two flexible cusps. The free ends of the stays form an inner support for the cusps. In order to avoid a possible mutual interference between the heart and valve functions, the base ring (12) has in the top view a closed, non-round shape with a common longitudinal axis (15) but two transverse half-axis (16, 17) of different sizes. The stays (18, 19) lie on the longitudinal axis (15) and form the transition between the two halves of the valve. The less curved wall (13) carries a (mural) cusp (11) having a smaller surface and a higher angle of inclination relative to the base ring base surface than the more curved wall (14).
Cette valvule mitrale prothétique comprend un boîtier de soutien ("stent") pourvu d'un anneau de base qui porte deux piliers qui s'étendent sensiblement dans la direction de l'axe de l'anneau et sont reliés par des parois courbes qui servent à assujettir deux valves flexibles. Les extrémités libres des piliers forment un appui intérieur pour les valves. Afin d'éviter une interférence mutuelle possible entre les fonctions du coeur et de la valvule, l'anneau de base vu d'en haut a une forme fermée non arrondie avec un axe longitudinal commun (15) mais deux demi-axes transversaux (16, 17) de grandeurs différentes. Les piliers (18, 19) se situent sur l'axe longitudinal (15) et forment le point de transition entre les deux moitiés de la valvule. La paroi (13) de moindre courbure porte une valve (murale) (11) de moindre surface et plus fortement inclinée par rapport à la surface de base de l'anneau de base que la paroi (14) de plus grande courbure.
Adiam Life Science Ag
Adiam Medizintechnik Gmbh & Co. Kg
Fetherstonhaugh & Co.
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