HEART VALVE PROSTHESIS Russian patent published in 2009 - IPC A61F2/24 

FIELD: medicine.

SUBSTANCE: invention concerns medical equipment and can be used in cardiosurgery for replacement of the damaged natural valves of the heart. The prosthesis contains a ring-shaped case and rotary cusps. The agent of deduction of the cusp in the case is executed in the form of two pairs through grooves forming among themselves two mutually-grasping structures. One pair of grooves is executed on the opposite additional regiments located on an internal surface of the case. The second pair of grooves - on opposite parallel sites of a lateral surface of a cusp. The wall of each groove represents a part of surface circular ring from its internal diameter. On the case surface opposite face prominences are placed. Internal surfaces of these prominences are executed flat and mutually parallel, with the possibility of interaction with opposite parallel sites of a lateral surface of a cusp. The supports for restriction of an angle of opening of cusps are located on internal surfaces of face.

EFFECT: invention is referred on rising of reliability of the valve at the expense of clottage depression on hinges.

3 cl, 7 dwg