Valve prosthesis device implanted into heart

A valve prosthesis and valve technology, applied in the field of medical devices, can solve problems such as the relative reduction of ejection fraction, and achieve the effects of improving heart failure, reducing tension, and reducing myocardial oxygen consumption

Pending Publication Date: 2021-03-05
SHANGHAI TRULIVE MEDTECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The expansion of the left ventricle in patients will lead to a relative decrease in ejection fr

Method used

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  • Valve prosthesis device implanted into heart
  • Valve prosthesis device implanted into heart
  • Valve prosthesis device implanted into heart

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This embodiment provides a valve prosthesis device for implanting into the heart, including a valve body 100 and a ventricular volume reducer 200, the valve body 100 includes a valve support 110 and an artificial valve attached to the valve support 110 leaves; the ventricular volume reducing element 200 is fixed to the valve main body 100 through a connecting piece 300, and the ventricular volume reducing element 200 is arranged in a manner to form an isolation cavity 500 that reduces the volume of the ventricle between the inner wall of the apex; wherein, the After the prosthetic device is implanted in the heart, the valve main body 100 is released at the original valve annulus to replace the original valve to open or close the blood channel, and the ventricular volume reducing element 200 is released to the left ventricle for Improve left ventricular enlargement caused by mitral regurgitation.

[0043] The heart valves in the prior art are only used to replace the nat...

Embodiment 2

[0062] This embodiment provides a valve prosthesis device for implanting into the heart. The prosthesis device in this embodiment is similar to the prosthesis device in Embodiment 1, except for the structure of the ventricular volume reducing element 200 . Wherein, the ventricular volume reducing element 200 described in this embodiment is configured as a disc-shaped structure, and the ventricular volume reducing element 200 of the disc-shaped structure is radially attached to the inner wall of the apex of the heart to form the isolation cavity 500 .

[0063] see Figure 6 , Figure 7 , is a schematic structural view of the valve prosthesis device of this embodiment.

[0064] Compared with the inverted conical structure, the distance from the apex of the heart after the release of the ventricular volume reducing member 200 in this embodiment is relatively long, so it can prevent the inner wall of the apex from touching the ventricular volume reducing member 200 when the heart...

Embodiment 3

[0068] This embodiment provides a valve prosthesis device for implanting into the heart. The prosthesis device of this embodiment is similar to the prosthesis device of Embodiment 1, and the ventricular volume reducing member 200 is in an inverted cone shape, and the difference lies in the anchoring device structure, the anchoring device of this embodiment includes a second anchoring portion 207, wherein the second anchoring portion 207 is arranged in the circumferential direction of the ventricular volume reducing element 200, and the second anchoring portion 207 provides anchoring force by piercing into the inner wall of the apex, Instead of attaching to the outer wall of the ventricle in Example 1.

[0069] Specifically, see Figure 8 , the large-diameter end portion 210 of the frame body 201 is in contact with the inner wall of the ventricle, and the force dissipating device 204 of the frame body 201 is in contact with the apex of the heart, so the second anchoring portion...

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Abstract

The invention discloses a valve prosthesis device implanted into a heart. The valve prosthesis comprises a valve main body and a ventricular volume reduction part, wherein the ventricular volume reduction part is fixed to the valve main body through a connecting part; and the ventricular volume reduction part is arranged in a manner that an isolation cavity for reducing the ventricular volume is formed between the ventricular volume reduction part and the inner wall of a cardiac apex. The valve prosthesis device can be used for replacing a native valve and treating mitral valve regurgitation caused by atrioventricular valve lesions, meanwhile, the ventricular volume reduction part is used for separating one part of the left ventricle through the isolation cavity formed between the ventricular volume reduction part and the inner wall of the cardiac apex, so that the left ventricular volume is restored to the normal size as much as possible, the left ventricular wall tension is reduced,myocardial oxygen consumption is reduced, myocardial contractility is enhanced, and cardiac function is improved; therefore, the valve prosthesis device can be used for treating mitral regurgitation and left ventricular enlargement caused by mitral regurgitation at the same time, heart failure is improved, and important clinical significance is achieved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a valve prosthesis device for implanting into the heart. Background technique [0002] The heart contains four chambers, the right atrium (RA), right ventricle (RV), left atrium (LA) and left ventricle (LV). The pumping action of the left and right sides of the heart generally occurs simultaneously throughout the cardiac cycle. The valve that separates the atria from the ventricles is called the atrioventricular valve. The atrioventricular valve acts as a one-way valve to ensure the normal flow of blood in the heart chambers. The atrioventricular valve between the left atrium and left ventricle is the mitral valve, and the atrioventricular valve between the right atrium and right ventricle is the tricuspid valve. The pulmonary valve directs blood flow to the pulmonary artery, and from there to the lungs; blood returns to the left atrium through the pulmonary vein. ...

Claims

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Application Information

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IPC IPC(8): A61F2/24
CPCA61F2/246A61F2/2463A61F2/2466
Inventor 不公告发明人
Owner SHANGHAI TRULIVE MEDTECH CO LTD
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