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Mitral valve mechanical valve with two valve leaflets in different sizes

A kind of mechanical valve, the second-generation technology, applied in the field of medical equipment, to achieve the effect of volume reduction, beneficial protection, and noise reduction

Inactive Publication Date: 2015-06-03
THE FIRST AFFILIATED HOSPITAL OF GUANGXI MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the negative impact of existing valve design technology, and provide a mechanical valve with unequal large mitral valves with reduced negative impact, simple structure, safe use and more in line with anatomy and physiology.

Method used

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  • Mitral valve mechanical valve with two valve leaflets in different sizes
  • Mitral valve mechanical valve with two valve leaflets in different sizes
  • Mitral valve mechanical valve with two valve leaflets in different sizes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] like figure 1 As shown, a mechanical valve of bicuspid unequal large mitral valve includes a bilobed leaflet 1, a backing ring 2, a valve ring 3, an angle limiting valve 6, and a leaflet joint 7. The lining ring 2 is installed on the outer side of the valve ring 3, and the lining ring 2 and the valve ring 3 are in an oval shape. The leaflet joints 7 are arranged on two end surfaces of the central long axis of the valve annulus 3 , and the angle limiting valves 6 are arranged on both sides of the two leaflet joints 7 in pairs. The angle limiting valve 6 limits the opening angle of the bilobes 1 to 82°. The double-leaf valve 1 is respectively connected with the two leaflet joints 7 and arranged on the surface of the valve ring 3. When the double-leaf valve 1 is opened, the blood flow is a central axial flow. The double leaflets 1 are set to have unequal areas, the large leaflet 4 and the small leaflet 5, the ratio of the area of ​​the large leaflet 4 to the small leafle...

Embodiment 2

[0028] like figure 1 As shown, a mechanical valve of bicuspid unequal large mitral valve includes a bilobed leaflet 1, a backing ring 2, a valve ring 3, an angle limiting valve 6, and a leaflet joint 7. The lining ring 2 is installed on the outer side of the valve ring 3, and the lining ring 2 and the valve ring 3 are in an oval shape. The leaflet joints 7 are arranged on two end surfaces of the central long axis of the valve annulus 3 , and the angle limiting valves 6 are arranged on both sides of the two leaflet joints 7 in pairs. The angle limiting valve 6 limits the opening angle of the bilobes 1 to 80°. The double-leaf valve 1 is respectively connected with the two leaflet joints 7 and arranged on the surface of the valve ring 3. When the double-leaf valve 1 is opened, the blood flow is a central axial flow. The double leaflet 1 is set as a large leaflet 4 and a small leaflet 5 with unequal areas. The ratio of the area of ​​the large leaflet 4 to the small leaflet 5 is ...

Embodiment 3

[0031] like figure 1 As shown, a mechanical valve of bicuspid unequal large mitral valve includes a bilobed leaflet 1, a backing ring 2, a valve ring 3, an angle limiting valve 6, and a leaflet joint 7. The lining ring 2 is installed on the outer side of the valve ring 3, and the lining ring 2 and the valve ring 3 are in an oval shape. The leaflet joints 7 are arranged on two end surfaces of the central long axis of the valve annulus 3 , and the angle limiting valves 6 are arranged on both sides of the two leaflet joints 7 in pairs. The angle limiting valve 6 limits the opening angle of the bilobes 1 to 81°. The double leaflet 1 is respectively connected with two leaflet joints 7 and arranged on the surface of the valve ring 3. When the double leaflet 1 is opened, the blood flow can be in the form of a central axis. The double leaflet 1 is set as a large leaflet 4 and a small leaflet 5 with unequal areas. The ratio of the area of ​​the large leaflet 4 to the small leaflet 5 ...

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Abstract

The invention discloses a mitral valve mechanical valve with two valve leaflets in different sizes. The mitral valve mechanical valve comprises the two valve leaflets, a lining ring, a valve ring, angle limiting valves and valve leaflet joints, wherein the outer side of the valve ring is provided with the lining ring; the mitral valve mechanical valve provided by the invention is elliptical; the valve leaflet joints are arranged at two end point surfaces of a central long shaft of the valve ring; the angle limiting valves are arranged at two sides of the two valve leaflet joints in pairs; the valve leaflets are installed on the valve ring surface through the two valve leaflet joints; and the areas of the two valve leaflets are different. The mitral valve mechanical valve provided by the invention is beneficial to the pass of a great amount of blood, so that energy consumption is reduced, and a mitral ring is dissected and reconstructed conveniently, so that the cardiac muscle relaxation and contraction function is close to physiological status; and the staggered movements of the valve leaflets with different areas after being subjected to same pressure can reduce the ultrahigh shearing force generated by the movement of the valve leaflets, is beneficial to protecting blood cells, meanwhile can enable sound volume generated by the two valve leaflets to be lowered, so that the damage to blood by valve membrane starting and closing movements is reduced, and the safety and physiological reliability of the mechanical valve are improved.

Description

technical field [0001] The invention belongs to the field of medical devices, in particular to a device for heart valve surgery used to replace a diseased human heart valve, more specifically to provide an artificial mechanical valve used to replace the function of a human heart mitral valve . Background technique [0002] The mitral valve of the heart is located on the atrioventricular orifice of the left ventricle. It is called the mitral valve because of its anatomical structure of anterior cusp and posterior cusp. It opens to the left ventricle during diastole and closes to the left atrium during systole. There are four phases of left ventricular systole and diastole (isovolumetric contraction phase, ejection phase, isovolumic relaxation phase, and ventricular filling phase). Among these four phases, there are more detailed rapid ejection phases, slow ejection phases, rapid The filling phase and the slowing filling phase each have their working time and space. In these ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/24
CPCA61F2/2403
Inventor 何巍何铭权曾建业
Owner THE FIRST AFFILIATED HOSPITAL OF GUANGXI MEDICAL UNIV