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Mitral regurgitation treatment instrument

A mitral valve and regurgitation technology, applied in the field of medical devices, can solve problems such as mitral valve damage

Pending Publication Date: 2020-12-29
上海丹领商务咨询事务所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a mitral valve regurgitation treatment device to solve the technical problem that the treatment and repair of mitral valve regurgitation in the prior art is easy to cause damage to the mitral valve valve

Method used

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  • Mitral regurgitation treatment instrument
  • Mitral regurgitation treatment instrument
  • Mitral regurgitation treatment instrument

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] figure 1 What is shown is a schematic diagram when the mitral valve 13 of the heart 1 has a mitral regurgitation lesion. Usually, the plane where the mitral valve 13 of the heart 1 is located is roughly D-shaped, and there are three main positions where regurgitation is likely to occur, which are respectively defined as the first regurgitation position P1, the second regurgitation position P2 and the third regurgitation position P3. 1 When mitral valve regurgitation occurs, it may be that all three regurgitation sites produce regurgitation lesions, or one or two regurgitation sites produce regurgitation lesions.

[0061] like Figure 1 to Figure 18 As shown, this embodiment provides a mitral valve regurgitation treatment device, which is used to interfere with the left atrium 11, and includes a stent 200 and a base membrane 300. The stent 200 is an annular grid structure, and the stent 200 is used to contact One end (ie, the bottom end) of the mitral valve 13 has a pl...

Embodiment 2

[0090] In order to increase the area of ​​the through hole 310, to increase the effective valve area of ​​the patient after surgical treatment, and reduce the transvalvular pressure difference, such as Figure 19 ~ Figure 21 As shown, the mitral valve regurgitation treatment device in this embodiment is different from the first embodiment in that the through hole 310 is set as an eccentric circular hole, that is, the base membrane 300 and the through hole 310 are set eccentrically.

[0091] The eccentric circular hole can be set on the side away from the lesion regurgitation position, and then the area of ​​the through hole 310 can be increased to increase the effective valve area and reduce the transvalvular pressure difference. Flow position P1, second reflux position P2, third reflux position P3) The reflux caused by prolapse can be treated by turning the release angle of the device during the release process, specifically as Figure 21 shown. in Figure 21 The a represen...

Embodiment 3

[0096] In order to increase the area of ​​the through hole 310, to increase the effective valve area of ​​the patient after surgical treatment, and reduce the transvalvular pressure difference, such as Figure 22 ~ Figure 24 As shown, the device for treating mitral valve regurgitation in this embodiment is different from Embodiment 1 and Embodiment 2 in that the through hole 310 is set in an oval shape.

[0097] Preferably, the through hole 310 is ellipse eccentric to the base film 300 , and the short side of the ellipse of the through hole 310 is arranged tangent to the edge of the base film 300 .

[0098] The apparatus for treating mitral valve regurgitation in this embodiment is similar to that in Embodiment 2, and the regurgitation caused by prolapse at different positions can be implemented through rotation, specifically as Figure 24 shown. in Figure 24 The a represents the schematic diagram of the treatment when the lesion occurs in the second reflux position P2; F...

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Abstract

The invention provides a mitral regurgitation treatment instrument, and relates to the technical field of medical instruments. The mitral regurgitation treatment instrument comprises a support and a bottom film, wherein the support is of an annular latticed structure, and the end, used for contacting a mitral valve, of the support is provided with a plane end; and the plane end is covered with thebottom film, the bottom film is annularly arranged, and a through hole corresponding to the annular shape of the bottom film is used for allowing blood to flow. The mitral regurgitation is treated byblocking a mitral regurgitation position, so that the operation difficulty is relatively low, and the problem that the requirements for doctor teams and equipment are high is solved; the risks of subvalvular tissue damage and outflow tract blocking in an existing valve replacement fixing process are avoided, so that the safety of the instrument is greatly improved; and the through hole is formedin the bottom of the instrument, so that the effect of limiting regurgitation of prolapse treatment can be guaranteed, the original subvalvular structure of a patient is completely reserved, and convenience can be provided for a valve-in-valve technology through the design of the through hole.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a mitral valve regurgitation treatment device. Background technique [0002] The heart is an important organ that provides power for blood circulation in the human body. The heart is divided into left and right parts, each containing a ventricle and an atrium. Between the left ventricle and the right ventricle through the interventricular septum, between the left atrium and the right atrium through the atrial septum. The direction of blood flow between the left atrium and left ventricle is regulated by the mitral valve. A healthy mitral valve ensures that oxygen-rich blood flows from the left atrium to the left ventricle, from which it pumps to arteries throughout the body. The direction of blood flow between the right atrium and right ventricle is regulated by the tricuspid valve. The tricuspid valve ensures that carbon dioxide-rich venous blood flows from the right ...

Claims

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Application Information

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IPC IPC(8): A61F2/24
CPCA61F2/2442A61F2/2466
Inventor 闫小珅
Owner 上海丹领商务咨询事务所
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