Heart valve prosthesis and method of manufacture

Details Heart valve prosthesis and method of manufacture Heart valve prosthesis and method of manufacture

A - Human Necessities

61

F

A61F 2/24 (2006.01)

Patent

CA 2450600

The present invention provides a cardiac valve prosthesis comprising a frame (1) and two or more leaflets (2a, 2b) (preferably three) attached to the frame. The leaflets are attached to the frame between posts (8), with a free edge (3a, 3b) which can seal the leaflets together when the valve is closed under back pressure. The leaflets are created in a mathematically defined shape allowing good wash-out of the whole leaflet orifice, including the area close to the frame posts, thereby relieving the problem of thrombus deposition under clinical implant conditions.

L'invention concerne une valvule cardiaque prothétique comportant une structure (1) et au moins deux valves (2a, 2b) (de préférence trois) fixées à la structure. Lesdites valves sont fixées à la structure entre des montants (8) avec un bord libre (3a, 3b) pouvant joindre les valves lorsque la valvule est fermée sous contre-pression. Les valves sont formées de manière définie mathématiquement, permettant ainsi un lavage efficace de l'ensemble de l'orifice de valve, y compris de la zone autour des montants de structure. Le problème des dépôts de thrombus est par conséquent résolu dans le cas d'implants cliniques.

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