HEART VALVE PROSTHESIS Russian patent published in 2014 - IPC A61F2/24 

FIELD: medicine.

SUBSTANCE: prosthesis of the heart valve contains a ring-shaped case, and rotary cusps. Means of holding each cusp in the case is made in the form of two through slots on parallel flat sections of the cusp lateral surface. The cusp slots encompass reciprocal projections on the case props. Lateral sides of the slots are convex inward the slot and limited by cylindrical surfaces. A diameter of the cylindrical surface is equal to the cusp thickness. Projections from the side of the direct blood flow are limited by the surfaces of the through slots, and from the side of the reverse blood flow - by inclined planes. The inclined plane is tangent to the cylindrical surface of the cusp slot in its open and closed positions. The lateral surfaces of the slots are the limiters of an angle of the cusp rotation from the closed position into the open position and back. The bottom surface of the slot is limited by the cylindrical surface with the diameter, equal to the cusp thickness, and is a supporting one when the cusp is opened. The inclined plane is a supporting one when the cusp is closed.

EFFECT: improved quality of the valve replacement.

2 cl, 8 dwg