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Elastic artificial biological heart valve

A heart valve and artificial technology, applied in heart valves, medical science, prostheses, etc., can solve the problems of affecting the service life, restricting the normal movement of the heart, and accelerating the damage of the valve leaflets, so as to reduce the work of the heart and improve the endurance The effect of changing bending ability and reducing stress concentration

Active Publication Date: 2005-11-30
BEIJING BALANCE MEDICAL
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  • Abstract
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AI Technical Summary

Problems solved by technology

But this hard valve seat restricts the normal movement of the heart
At the same time, the valve is fixed on the hard valve seat. When the blood passes through the valve and the valve closes, stress concentration occurs at the junction of the valve leaflet and the valve seat due to the impact of blood, which accelerates the damage of the valve leaflet and affects its use. life

Method used

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  • Elastic artificial biological heart valve
  • Elastic artificial biological heart valve
  • Elastic artificial biological heart valve

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Embodiment Construction

[0016] figure 1 This is a schematic diagram of an elastic artificial biological heart tricuspid valve according to an embodiment of the present invention. It includes a valve holder 1 and a valve seat 2. The valve holder 1 is sutured with three biological tissue flaps 5, and the valve holder 1 is made of titanium alloy wire wound into three continuous mutual Is an arc of 120 degrees (see image 3 ), the wire diameter is 0.45-0.85mm, the center line circumference of the valve holder 2 is consistent with the bottom circle formed by the three lower arcs of the valve holder 1, and the outside of the valve holder 1 and the valve holder 2 are both wrapped with polyester fabric 6. And the lower edge of the valve holder 1 and the valve seat 2 are stitched together by a loop of suture. The three tissue flaps 5 of the valve are respectively clamped by the three "∩"-shaped structures on the top of the valve frame, and the interlocking parts of the three petals are respectively clamped, and ...

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Abstract

The invention discloses an elastic artificial biological heart valve, which comprises a valve seat, a valve holder and three pieces of biological tissue valve sheets adhered thereon, the elastic artificial heart valve has a similar shape with the natural heart valve, the valve seat is formed by a support tube with a circular or elliptical cross-section and an inner core arranged in the tube, there is formed a gap between the inner core and the support tube, the valve holder is formed by winding three continuous circular arcs spaced apart by 120 degrees with medical metal wires that can be implanted into human body, the circumference of the valve seat central line is the same as the circumference of the bottom circle formed by the three lower arcs.

Description

Technical field [0001] The invention relates to an artificial biological heart valve prosthesis, in particular to an elastic artificial biological heart valve used to replace a diseased heart valve or a previously implanted artificial valve that has lost its function. Background technique [0002] For patients with severe valvular heart disease, surgical replacement of artificial valve is the only effective treatment in the end. In recent years, the follow-up of a large group of patients after long-term valve replacement has shown that the long-term survival rate of the artificial mechanical valve is not better than that of the artificial bioprosthetic valve due to the anticoagulation-related complications of the artificial mechanical valve. In addition, the aging population in recent years has caused the elderly to regress. The increasing number of sexual valvular diseases and the continuous progress in the research of artificial bioprostheses have significantly improved their d...

Claims

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Application Information

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IPC IPC(8): A61F2/24
Inventor 金磊
Owner BEIJING BALANCE MEDICAL
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