HEART VALVE PROSTHESIS Russian patent published in 2010 - IPC A61F2/24 

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment and can be used for replacement of affected natural valves of human heart. Cusps are connected with body by means of hinge type. One element of hinge-type means is made in form of projections located on butt end surface of ring-shaped body, directed to direct blood flow, limited by support and lateral surfaces. Support surfaces of projections are made at the level or upstream of direct flow of butt end surface of body. The other element of hinge-type means is located on opposite sides of lateral surfaces of each cusp and is made in form of figured slot. Slot is limited by support and lateral surfaces, which interact with support and lateral surfaces of projections. Projections are located in pairs in each part of clearing hole symmetrically with respect to symmetry plane. Lateral surfaces of each pair of projections, located in one part of clearing hole, are formed by parts of one surface of rotation, axes of each surface of rotation being at a distance from symmetry plane in direction of each part of body clearing hole.

EFFECT: prevention of falling out of the cusps in process of work.

3 cl, 5 dwg