PROSTHETIC MITRAL HEART VALVE Russian patent published in 2018 - IPC A61F2/24 

FIELD: medicine.

SUBSTANCE: mitral heart valve prosthesis contains an oval annular body 1 with stops 2 and 3 of the locking flap 4. The locking flap 4 is installed in the lumen of the body 1 on the axle hinges 5 with an ability to rotate by an angle of 50-55° with respect to the plane of the edges of the concave end 6 of the body 1. The concave end 6 of the body 1 has a bend for the fibrous ring of the mitral valve. The locking flap 4 is formed with an inner surface 7 and an outer surface 8. Surfaces 7 and 8 are bent in longitudinal and transverse planes. In the longitudinal plane, the bending radius of each surface is 300-400 mm. In the transverse plane, the bending radius of each surface is 20-40 mm. The first turn limiter 2 of the locking flap 4 is formed as a rounded rib on the portion of the inner edge of the concave end 6 of the body 1. The second turn limiter 3 of the locking flap 4 is formed as a rounded portion of the inner edge of the curved end 9 of the body 1.

EFFECT: device allows to create conditions for preservation of the tornado-like structure of the blood flow both during filling of the left ventricle, and during the isovolymic phase of the cardiac cycle, and during blood release into the arterial bed.

2 cl, 1 dwg