Support device used after heart valve replacement

Abstract

The utility model relates to the technical field of medical instruments, and discloses a supporting device used after heart valve replacement, which comprises a membrane body and is characterized in that a plurality of membrane body movable columns are fixedly connected outside the membrane body, three fixing rings are fixedly connected outside the membrane body movable columns, and the membrane body movable columns are fixedly connected with the fixing rings. The exteriors of the three fixing rings are fixedly connected with connecting supporting plates, the two ends of each connecting supporting plate are fixedly connected with a plurality of external fixing metal wire meshes, and the interiors of the external fixing metal wire meshes are fixedly connected with external metal net frames; the front ends of the multiple external fixed metal wire meshes are fixedly connected with external movable metal wires. According to the utility model, the membrane body is fixed through the internal metal net rack and the internal metal wire net, and the membrane body is fixed through the clamping plate formed by the external fixed metal wire net and the external metal net rack, so that the problem that the stability of the valve is reduced due to the fact that the supporting structure is not firm enough is solved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a support device after heart valve replacement surgery. Background Technology

[0002] Heart valves are the valves between the ventricles and arteries, used to enable unidirectional blood flow. Heart valve replacement surgery is an effective treatment for severe heart valve disease. When heart valves are damaged due to congenital defects, rheumatic heart disease, infective endocarditis, etc., replacing them with artificial valves can restore normal blood flow to the heart. The implantation of artificial valves will change the internal pressure environment and blood flow pattern of the heart.

[0003] Heart valve replacement surgery involves replacing the original valve tissue with an artificial mechanical valve made of synthetic materials. The artificial bioprosthetic valve consists of two parts: the valve body and a metal support mesh. When this artificial bioprosthetic valve is used to replace the body's original valve tissue, the metal support mesh acts as a fixation mechanism, ensuring the valve body is stably attached to the appropriate position. Once installed, the valve body begins to function, mimicking the opening and closing action of a natural valve to maintain normal blood flow.

[0004] In the prior art, after heart valve surgery, the tissues around the heart valve become relatively fragile due to the trauma caused during the surgery. This fragility can lead to the valve's supporting structure becoming less robust, resulting in decreased valve stability and further affecting the valve's normal function. Utility Model Content

[0005] This invention proposes a support device for post-heart valve replacement surgery, aiming to improve the problem that the support structure of some existing devices is not strong enough, thus causing a decrease in valve stability.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a support device after heart valve replacement surgery, comprising a membrane body, a plurality of movable membrane columns fixedly connected to the outside of the membrane body, three fixed rings fixedly connected to the outside of the movable membrane columns, a connecting support plate fixedly connected to the outside of each of the three fixed rings, a plurality of external fixed metal wire meshes fixedly connected to both ends of the connecting support plate, an external metal mesh frame fixedly connected to the inside of each of the plurality of external fixed metal wire meshes, an external movable metal wire fixedly connected to the front end of each of the plurality of external fixed metal wire meshes, an external movable metal wire fixedly connected to one end of the connecting support plate, one end of the external metal mesh frame fixedly connected to the outside of the membrane body, a plurality of connecting metal wires fixedly connected to the inside of the external movable metal wires, an internal movable metal wire fixedly connected to the end of each of the plurality of connecting metal wires away from the external movable metal wires, a plurality of internal metal wire meshes fixedly connected to the outside of the internal movable metal wires, an internal metal mesh frame fixedly connected to the inside of each of the plurality of internal metal wire meshes, and an external fixed connection of the plurality of internal metal mesh frames to the inside of the membrane body.

[0007] As a further description of the above technical solution: the membrane body is fixed to the outside of the membrane body by the membrane body movable column, so that the membrane body is supported and can work. At the same time, the membrane body is fixed to the outside of the membrane body by the external metal mesh frame, so that the connecting support plate is moved away from the external metal mesh frame after the membrane body is supported, so that the external fixed metal mesh is restored from the scaled state to the fixed form.

[0008] As a further description of the above technical solution: the connecting metal wire is fixedly connected to the outside of the external movable metal wire. After the external fixed metal wire mesh moves, it drives the external movable metal wire, so that the connecting metal wire drives the internal movable metal wire to move together, thereby fixing the membrane body.

[0009] As a further description of the above technical solution: the internal metal mesh frame is fixed inside the membrane body, so that after the membrane body is supported, the internal metal mesh outside the internal metal mesh frame is restored to support the membrane body.

[0010] In this invention, the membrane body is fixed to the connecting support plate by the movable column and the fixing ring, allowing the membrane body to function normally. The external fixing metal wire mesh and the external metal mesh frame fix the membrane body as needed, preventing changes in the shape of the membrane body during operation. The external movable metal wire, the connecting metal wire, and the internal movable metal wire restrict the membrane body to a fixed area, preventing changes in position due to increased postoperative use. The internal metal mesh frame and the internal metal wire mesh fix the membrane body, and the external fixing metal wire mesh and the external metal mesh frame form a clamp to fix the membrane body, thus solving the problem of insufficient support structure leading to decreased valve stability. Attached Figure Description

[0011] Figure 1 This is a three-dimensional schematic diagram of a support device for postoperative heart valve replacement proposed in this utility model;

[0012] Figure 2 This is a schematic diagram of the membrane body of a post-heart valve replacement support device proposed in this utility model.

[0013] Figure 3 This is a schematic diagram of the internal metal mesh structure of a post-heart valve replacement support device proposed in this utility model.

[0014] Figure 4 This is a schematic diagram of the structure of the movable column of the membrane body of a support device after heart valve replacement surgery proposed in this utility model;

[0015] Figure 5 This is a schematic diagram of the external fixing wire mesh of a support device after heart valve replacement surgery proposed in this utility model.

[0016] Legend:

[0017] 1. Membrane body; 2. Membrane body movable column; 3. Fixing ring; 4. Connecting support plate; 5. External fixed metal wire mesh; 6. External metal mesh frame; 7. External movable metal wire; 8. Connecting metal wire; 9. Internal movable metal wire; 10. Internal metal wire mesh; 11. Internal metal mesh frame. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figures 1 to 3This utility model provides an embodiment of a post-heart valve replacement support device, comprising a membrane body 1. The membrane body 1 is customized according to the heart valve size of different patients, and is usually circular with moderate thickness to ensure sufficient support without affecting blood flow. Multiple movable membrane columns 2 are fixedly connected to the outside of the membrane body 1. The movable membrane columns 2 are used for support and fixation, and are cylindrical in shape to ensure the normal operation of the membrane body 1. Three fixing rings 3 are fixedly connected to the outside of the movable membrane columns 2. The fixing rings 3 are used for fixation and connection, and the three fixing rings 3 are all externally fixed. A connecting support plate 4 is fixedly connected. The connecting support plate 4 is used for fixing and supporting. Multiple external fixed metal wire meshes 5 are fixedly connected to both ends of the connecting support plate 4. The external fixed metal wire meshes 5 are used for support and fixing. They are made of medical stainless steel wire, which has good strength and biocompatibility. They adopt a diamond mesh. An external metal mesh frame 6 is fixedly connected inside the multiple external fixed metal wire meshes 5. The external metal mesh frame 6 is used to support the external fixed metal wire meshes 5 and prevent them from deforming. The external fixed metal wire meshes 5 are fixed to the membrane body 1. They are made of medical stainless steel.

[0020] Multiple external fixed metal wire meshes 5 are fixedly connected to the front ends of external movable metal wires 7. External movable metal wires 7 are used for connection and fixation. The external movable metal wires 7 are fixedly connected to one end of the connecting support plate 4. One end of the external metal mesh frame 6 is fixedly connected to the outside of the membrane body 1. Multiple connecting metal wires 8 are fixedly connected inside the external movable metal wires 7. Connecting metal wires 8 are used for fixation and connection and are made of medical stainless steel. The ends of multiple connecting metal wires 8 that are away from the external movable metal wires 7 are fixedly connected to internal movable metal wires 9. Internal movable metal wires 9 are connected to external movable metal wires 7 through connecting metal wires 8. Multiple internal metal wire meshes 10 are fixedly connected to the outside of internal movable metal wires 9. Internal metal wire meshes 10 are used to support the inside of the membrane body 1 and prevent deformation, just like external fixed metal wire meshes 5. Internal metal mesh frames 11 are fixedly connected to the inside of each of the multiple internal metal wire meshes 10. Internal metal mesh frames 11 are shorter than external metal mesh frames 6 and are used to fix the inside of the membrane body 1. The outside of multiple internal metal mesh frames 11 are fixedly connected to the inside of the membrane body 1.

[0021] Reference Figure 4 , Figure 5The membrane body 1 is fixed to the outside of the membrane body 1 by the movable column 2, so that the membrane body 1 is supported and can work. At the same time, the membrane body 1 is fixed to the outside of the membrane body 1 by the external metal mesh frame 6, so that the membrane body 1 is supported and the connecting support plate 4 is moved away from the external metal mesh frame 6, so that the external fixed metal mesh 5 is restored from the scaled state to the fixed state. The connecting metal wire 8 is fixed to the outside of the external movable metal wire 7. The external fixed metal mesh 5 moves and drives the external movable metal wire 7, so that the connecting metal wire 8 drives the internal movable metal wire 9 to move together, thus fixing the membrane body 1. The membrane body 1 is fixed to the inside of the membrane body 1 by the internal metal mesh frame 11, so that the membrane body 1 is supported and the internal metal mesh 10 outside the internal metal mesh frame 11 is restored to support the membrane body 1.

[0022] Working principle: During use, the overall scaling device is installed on the airbag and then placed inside the heart valve to be replaced. Inflation causes the airbag membrane body 1 to unfold. As the membrane body 1 unfolds, the external connecting support plate 4 and the external metal mesh frame 6 expand the external fixed metal wire mesh 5, thus supporting it in the replacement position. At the same time, the internal metal mesh frame 11 inside the membrane body 1 also expands as the airbag inflates, supporting the internal metal wire mesh 10 inside the membrane body 1, ensuring that the membrane body 1 maintains its shape stability during operation. By having the external movable metal wire 7 on the external fixed metal wire mesh 5 and the internal movable metal wire 9 on the internal metal wire mesh 10 unfold together with the membrane body 1, the connecting metal wire 8 ensures that the position of the membrane body 1 can be prevented from changing.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A post-cardiac valve replacement support device comprising a membrane body (1), characterized in that: Multiple membrane movable columns (2) are fixedly connected to the outside of the membrane body (1). Three fixed rings (3) are fixedly connected to the outside of each of the membrane movable columns (2). A connecting support plate (4) is fixedly connected to the outside of each of the three fixed rings (3). Multiple external fixed metal wire meshes (5) are fixedly connected to both ends of the connecting support plate (4). An external metal mesh frame (6) is fixedly connected to the inside of each of the multiple external fixed metal wire meshes (5). An external movable metal wire (7) is fixedly connected to the front end of each of the multiple external fixed metal wire meshes (5). The external movable metal wire (7) is fixedly connected to the connecting support plate (4). One end of the external metal mesh frame (6) is fixedly connected to the outside of the membrane body (1). Multiple connecting metal wires (8) are fixedly connected inside the external movable metal wire (7). The ends of the multiple connecting metal wires (8) that are away from the external movable metal wire (7) are fixedly connected to internal movable metal wires (9). Multiple internal metal wire meshes (10) are fixedly connected to the outside of the internal movable metal wires (9). Internal metal mesh frames (11) are fixedly connected inside the multiple internal metal wire meshes (10). The outside of the multiple internal metal mesh frames (11) is fixedly connected to the inside of the membrane body (1).

2. A post-cardiopulmonary valve replacement support device according to claim 1, wherein: The membrane body (1) is fixed to the outside of the membrane body (1) by the membrane body movable column (2), so that the membrane body (1) is supported and works. At the same time, the membrane body (1) is fixed to the outside of the membrane body (1) by the external metal mesh frame (6), so that the membrane body (1) is supported and the connecting support plate (4) is moved away from the external metal mesh frame (6), so that the external fixed metal wire mesh (5) is restored from the scaled state to the fixed form.

3. A post-cardiopulmonary valve replacement support device as in claim 1, wherein: The connecting metal wire (8) is fixedly connected to the outside of the external movable metal wire (7). After the external fixed metal wire mesh (5) moves, it drives the external movable metal wire (7), so that the connecting metal wire (8) drives the internal movable metal wire (9) to move together, thereby fixing the membrane body (1).

4. The device of claim 1, wherein: The internal metal mesh frame (11) is fixed inside the membrane body (1), so that after the membrane body (1) is supported, the internal metal wire mesh (10) outside the internal metal mesh frame (11) is restored to support the membrane body (1).

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