| 摘要 |
FIELD: medicine.SUBSTANCE: invention refers to cardiovascular surgery and aims at replacing the involved natural mitral valves during cardiac surgeries. The mitral valve prosthesis comprises a frame with a supporting base and attached well-rounded poles, a folding lock element of a polymer material or biological tissue, and a suture cuff. The supporting base in a plane perpendicular to the central axis of the valve prosthesis is kidney-shaped, and in a vertical plane, it is saddle-shaped by bending a portion of the supporting base in the vertical plane towards the direct blood flow through the valve. The suture cuff is attached along a lower edge of the supporting base facing the direct blood flow after the saddle and kidney shape.EFFECT: increasing the reliability and durability of the prosthesis by reducing loads on the elements that is provided by the special shape of the supporting base of the prosthesis.5 cl, 4 dwg |
