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A valve stent to prevent coronary blockage

A technology of valves and coronary arteries, applied in the field of valve stents, can solve the problems of blockage of the autogenous valve leaflets to the coronary vessels, depression height, etc., and achieve the effects of reducing risks, reducing caliber, and avoiding blockage of coronary blood supply

Active Publication Date: 2021-07-02
NINGBO JENSCARE BIOTECHNOLOGY CO LTD
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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 overcome the existing technical limitations. Aiming at the situation that the aortic valve or other valve rings are replaced, which may cause the blockage of the native valve leaflets to the coronary vessels, a valve stent to avoid coronary blockage is proposed. Through A valve depressor is installed so that when the stent is installed, the height of the autogenous valve leaflet along the direction of the vessel wall or chamber wall is lowered, thereby preventing the autologous valve leaflet from blocking the coronary artery opening, improving the patient's survival rate, and reducing the risk of valve stent implantation. Secondary risks brought about by entry

Method used

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  • A valve stent to prevent coronary blockage
  • A valve stent to prevent coronary blockage
  • A valve stent to prevent coronary blockage

Examples

Experimental program
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Effect test

specific Embodiment 1

[0040] At the aircraft of the aorta, the blood flows upward from the left ventricle to the initial artery. The aircraft of the aircraft has a three-piece unidirectional autologous leaflet, in normal state, the aortic valve composed of the three flapped leaves constantly is closed and opened, when the blood of the left ventricle is active At the time, the aortic valve was swung up and opened, and then the aortic valve returned to the horizontal state, and the unfolded three flap constituted a blocking surface to prevent the blood of the lifting of the lifting main chassis from returning to the left ventricle. At the valve sinus of the aorta, there are two side branch blood vessels, which are left-crown artery and right coronary artery, and the blood flowing through the aortic valve is divided into the heart from these two sites for blood.

[0041] Figure 1A with 1b The planned prosthesis is shown in the prior art. in Figure 1A In the middle, the radial support card of the bracket ...

specific Embodiment 2

[0052] Such as Figure 4A with Figure 4B As shown, as an embodiment, a valve bracket 100 that avoids the coronary plugging, including the valve sewing segment 110 and the clamping member 120, the clamp 120 and the valve sewing section 110 Connecting together, one end of the clamp 120 is fixedly coupled to the valve sewing section 210, and the other end is free. The clamp 120 is provided with a valve device 130 between the valve sewing segments 110, the valve device 130 being a flexible rope. The free end of the clamp 120 is provided with a connecting structure 125 that is a hole. One end 2301 of the valve device 130 is connected to the clamp 120 through the connecting structure 125, and the other end 1302 of the valve device 130 is released after riding a free edge of the original autologous leaflet, and is After manual adjustment, it is connected to the valve sewing section 110. Further, the other end 1302 of the valve device 130 is free to extends into vitro, and is connected to ...

specific Embodiment 3

[0062] Such as Figure 6A with Figure 6B As shown, as an embodiment, a valve bracket 100 that avoids the coronary plugging, including the valve sewing segment 110 and the clamping member 120, the clamp 120 and the valve sewing section 110 as an integral structure, One end of the clamp 120 is fixedly coupled to the valve sewing section 110, and the other end is free. The clamp 120 is provided with a valve device 130 between the valve sewing segments 110, the valve device 130 being a flexible rope. The free end of the clamp 120 is provided with a connection structure 125, and one end 1301 of the valve device 130 is connected to the clamp 120 through the connecting structure 125, and the other end 1302 of the valve device 130 is released. The ride rides on the free edge of the protozoal autologous leaf, and the valve device 130 is manually adjusted to connect with the cardiac tissue. Herene tissue can be a tip, nipple muscle, side blood vessel, and myocardial wall. More preferably, th...

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Abstract

The present application relates to a valve stent for avoiding coronary blockage, comprising a valve sewing section and a clamping piece, one end of the clamping piece is fixedly connected to the valve sewing section, and the other end of the clamping piece is free, A valve pressing device is arranged between the clamping part and the valve sewing section, one end of the valve pressing device is connected to the clamping part, and the valve pressing device straddles the original native leaflet after release. On the free edge, by setting a valve pressing device, when the stent is implanted, the height of the autologous valve leaflet along the direction of the vessel wall or the chamber wall is reduced when the stent is opened, thereby preventing the autologous valve leaflet from blocking the coronary artery opening and improving the survival rate of the patient. At the same time, the secondary risk caused by valve stent implantation is reduced.

Description

Technical field: [0001] The present invention belongs to the field of medical devices, involves a valve bracket that avoids coronary plugging. Background technique: [0002] The shape of the heart is inverted, and the front and rear cones are slightly flat. If it is considered to the head, it is located at the top of the head, and the coronary artery of the head is just a top crown, which is the origin of its name. The coronary artery is the artery supplied to the heart of blood, from the aortic root (liter of the main artery), two, and the heart surface. The left and right coronary artery is the first to branch of the initial artery. The left coronary artery is a short dry, from the left aortic sinus, between the pulmonary artery starting portion and left heart, and then divided into the front room between the front room and swirls immediately along the front. The front intercom is down in front of the front interior, and the inherent sacral displacement is in combination with t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/24
CPCA61F2/2412A61F2/2418A61F2/2436
Inventor 李毅斌郑玲和
Owner NINGBO JENSCARE BIOTECHNOLOGY CO LTD
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