Valve stent and prosthetic heart valve

Abstract

The application belongs to the technical field of heart valve, in particular to a valve stent and artificial heart valve, which comprises a stent body, a connecting sheet and a connecting piece; the connecting piece is clamped on the stent body, the stent body forms a net shape after being assembled, and the opening at the top of the assembled stent body is larger than the bottom; the connecting sheet is made of elastic material; the connecting piece is clamped on the stent body, so that the stent body is assembled into the required valve stent; when the valve is placed into the stent body, the corrugated connecting sheet is deformed, the stent body can be away from each other, the valve is smoothly placed into the stent body, and the connecting sheet improves the pulling force of the stent body, so that the valve is fixed on the stent body, which is convenient for assembly and use.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of heart valves, in particular to a valve stent and an artificial heart valve. BACKGROUND

[0002] The valve stent is a medical device mainly used to support and fix the heart valve to prevent valve insufficiency or stenosis. The heart valve is an important component in the heart, responsible for regulating the direction and speed of blood flow. However, due to various reasons such as rheumatic heart disease, senile degeneration, etc., the heart valve may become abnormal, causing impaired heart function. The valve stent helps to repair or replace the damaged valve by implanting inside the heart, restoring the normal function of the heart.

[0003] However, the existing valve stent is mostly designed in one piece, although the related art has disclosed a valve stent designed in multiple segments, such as the patent with the announcement number CN217366197U, which discloses a stent and heart valve, which comprises at least a body, which is a hollow columnar structure formed by a rhombic grid. Although the stent in this application also works by multiple segments, it does not disclose in detail how the stent is connected and how the connection method affects the use effect and convenience of the valve stent.

[0004] Based on the above problems, the application provides a valve stent and an artificial heart valve. SUMMARY

[0005] To make up for the shortcomings of the prior art and solve at least one technical problem in the background art.

[0006] The technical solution adopted by the application to solve its technical problems is: a valve stent, comprising a stent body, a connecting piece and a connecting piece; the connecting piece is clamped on the stent body, the stent body forms a mesh after assembly, and the opening at the top of the assembled stent body is larger than the bottom, the connecting piece is connected with the connecting piece on both sides, the connecting piece is made of elastic material, and the connecting piece is corrugated.

[0007] The connecting piece comprises a sleeve, the side wall of the sleeve is fixedly connected with the connecting piece, and one side of the sleeve is provided with an opening.

[0008] The inner wall of the sleeve is fixedly connected with a group of first elastic members, and the inner wall of the sleeve is clamped with a pair of elastic flaps.

[0009] The second elastic member is fixedly connected to the inner wall of the cavity, and the other end of the second elastic member is fixedly connected to a fixed sheet.

[0010] The connecting lines are fixedly connected to the ends of the connecting sheets close to each other.

[0011] The inner wall of the cavity is sealingly and slidingly connected to a push plate, the two ends of the opening side of the sleeve are sealingly and slidingly connected to connecting frames extending into the cavity, the connecting frames are fixedly connected to the push plate, the inner wall of the cavity is fixedly connected to elastic sealing sheets sealingly wrapped around the spherical ball, the sealing sheets are fixedly connected to the second elastic member, and the end of the connecting frame away from the push plate is fixedly connected to a fixed plate.

[0012] One of the push plates is rotationally connected to a limiting plate, and the other push plate is provided with a positioning groove, and the limiting plate is fixedly connected to a positioning block corresponding to the positioning groove.

[0013] A kind of artificial heart valve, the artificial heart valve is suitable for the valve support of above-mentioned, including valve, the inner wall of the valve is fixedly connected to a group of valve leaflets, the side wall of the valve is provided with multiple groups of sliding grooves, the sliding groove is provided with positioning column, the valve is provided with drive mechanism for driving positioning column to move.

[0014] The drive mechanism includes an annular groove communicated with the sliding groove and arranged in the valve, the side wall of the valve is provided with a connecting hole communicated with the annular groove, the side wall of the valve is twisted with a sealing plate sealing the connecting hole by a torsional spring, the positioning column is sealingly and slidingly connected to the inner wall of the sliding groove, and the third elastic member is fixedly connected between the inner wall of the sliding groove and the positioning column.

[0015] The beneficial effects of the present application are as follows:

[0016] 1. The connecting piece can be clamped on the support body, so that the support body is assembled into the required valve support. When the valve is placed in the support body, the corrugated connecting piece will deform, allowing the support body to move away from each other, so that the valve can be smoothly placed in the support body. At the same time, the connecting piece can improve the pulling force of the support body, so as to fix the valve on the support body, which is convenient for assembly and use.

[0017] 2. When the support body is assembled, the opening position of the sleeve can be sleeved on the support body. At this time, the opening side of the sleeve will be opened, so as to be smoothly sleeved on the support body. The sleeve is convenient for assembling the support body, and also convenient for disassembling the support body subsequently. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be further described below with reference to the accompanying drawings.

[0019] Figure 1 is a three-dimensional diagram of the bracket body of the present invention;

[0020] Figure 2 This is a schematic structural diagram of the connecting piece connecting the bracket body in the present invention;

[0021] Figure 3 It is a cross-sectional view of the ferrule in the present invention;

[0022] Figure 4 yes Figure 3 A magnified view of point A;

[0023] Figure 5 This is a schematic diagram of the matching structure of the bracket body and the flap valve in the present invention;

[0024] Figure 6 yes Figure 5 Enlarged view of point B.

[0025] In the figure: 1. bracket body; 2. ferrule; 3. connecting piece; 4. first elastic member; 5. baffle; 6. ball; 7. second elastic member; 8. fixing piece; 9. sealing piece; 10. cavity; 11. push plate; 12. connecting frame; 13. fixing plate; 14. limiting plate; 15. positioning block; 16. connecting line; 17. flap valve; 18. flap; 19. sealing plate; 20. slide groove; 21. positioning column; 22. third elastic member; 23. annular groove; 24. connecting hole. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] Example 1: Figures 1 to 4 As shown, a valve stent and artificial heart valve according to an embodiment of the present invention include a stent body 1, a connecting piece 3 and a connecting piece; the connecting piece is clamped on the stent body 1, and the stent body 1 forms a mesh after being assembled, and the top opening of the assembled stent body 1 is larger than the bottom end. Connectors are connected to both sides of the connecting piece 3, and the connecting piece 3 is made of elastic material and has a corrugated shape.

[0028] The present application can clamp the connecting piece on the stent body 1, so that the stent body 1 can be assembled into the required valve stent. When the valve is placed in the stent body 1, the corrugated connecting piece 3 will deform, allowing the stent bodies 1 to move away from each other, allowing the valve to be smoothly placed in the stent body 1. At the same time, the connecting piece 3 will increase the pulling force for the stent body 1, thereby fixing the valve on the stent body 1, making it easy to assemble and use.

[0029] The connecting piece comprises a sleeve 2, the side wall of the sleeve 2 is fixedly connected with a connecting piece 3, and one side of the sleeve 2 is provided with an opening; when the support body 1 is assembled, the opening position of the sleeve 2 can be sleeved on the support body 1, at this time, the opening side of the sleeve 2 is opened, so as to be smoothly sleeved on the support body 1, and the sleeve 2 facilitates the assembly of the support body 1, and also facilitates the subsequent disassembly of the support body 1.

[0030] The inner wall of the sleeve 2 is fixedly connected with a group of first elastic members 4, and the inner wall of the sleeve 2 is clamped with a pair of elastic retaining sheets 5; when the sleeve 2 is sleeved on the support body 1, the retaining sheet 5 limits the first elastic member 4, and after the sleeve 2 is sleeved on the support body 1, the first elastic member 4 and the retaining sheet 5 improve the thrust on the support body 1, so as to further fix the support body 1 on the sleeve 2, and improve the fixing effect of the sleeve 2 on the support body 1.

[0031] The support body 1 is provided with a cavity 10, the inner wall of the cavity 10 is fixedly connected with a second elastic member 7, the other end of the second elastic member 7 is fixedly connected with a fixed sheet 8, the fixed sheet 8 is movably connected with a spherical ball 6, and the spherical ball 6 extends to the inner side wall of the sleeve 2; when the support body 1 is taken out from the sleeve 2, because the support body 1 is in contact with the spherical ball 6, the spherical ball 6 rotates, thereby reducing the resistance when the support body 1 is disassembled.

[0032] The connecting piece 3 is fixedly connected with a connecting line 16 at one end close to each other; when the sleeve 2 is installed, only one needs to be installed, and the other sleeves 2 are limited by the connecting line 16 on a line, thereby facilitating the installation of the subsequent sleeve 2.

[0033] The inner wall of the cavity 10 is sealingly and slidably connected with a push plate 11, the opening side of the sleeve 2 is sealingly and slidably connected with a connecting frame 12 extending into the cavity 10, the connecting frame 12 is fixedly connected with the push plate 11, the inner wall of the cavity 10 is fixedly connected with an elastic sealing sheet 9 sealingly wrapped on the spherical ball 6, the sealing sheet 9 is fixedly connected with the second elastic member 7, and the end of the connecting frame 12 away from the push plate 11 is fixedly connected with a fixed plate 13; when the sleeve 2 is sleeved on the support body 1, the spherical ball 6 is pushed into the cavity 10, preventing the spherical ball 6 from affecting the fixing effect of the support body 1, when the support body 1 needs to be taken out from the sleeve 2, the fixed plate 13 is pushed, the connecting frame 12 is pushed by the fixed plate 13, the push plate 11 is driven by the connecting frame 12, the gas in the cavity 10 is pushed by the push plate 11, the gas pushes the sealing sheet 9, the sealing sheet 9 pushes the spherical ball 6 to contact the support body 1, thereby facilitating the disassembly of the support body 1.

[0034] One of the push plate 11 is rotatably connected with a limiting plate 14, and the other push plate 11 is provided with a positioning groove, and the limiting plate 14 is fixedly connected with a positioning block 15 corresponding to the positioning groove; after the sleeve 2 is sleeved on the support body 1, the limiting plate 14 can be rotated, and the positioning block 15 is clamped with the positioning groove, so that the connecting frame 12 is fixed, and the connecting frame 12 is prevented from being pushed by mistake, so that the ball 6 is in contact with the support body 1.

[0035] Embodiment two: as shown in the embodiment one, wherein another embodiment of the application is: an artificial heart valve, the artificial heart valve is suitable for the above-mentioned valve support, including valve 17, the inner wall of the valve 17 is fixedly connected with a group of valve leaflets 18, the side wall of the valve 17 is provided with a plurality of sliding grooves 20, the sliding groove 20 is provided with a positioning column 21, the valve 17 is provided with a driving mechanism for driving the positioning column 21 to move; the application is placed in the assembled support body 1, then the positioning column 21 is pushed by the driving mechanism, so that the positioning column 21 is clamped on the gap of the support body 1, so that the valve 17 is firmly fixed on the support body 1. Figures 5 to 6 The driving mechanism includes an annular groove 23 communicated with the sliding groove 20 and opened in the valve 17, the side wall of the valve 17 is provided with a connecting hole 24 communicated with the annular groove 23, the side wall of the valve 17 is twisted with a sealing plate 19 sealing the connecting hole 24 through a torsional spring, the positioning column 21 is sealingly and slidably connected with the inner wall of the sliding groove 20, and the third elastic element 22 is fixedly connected between the inner wall of the sliding groove 20 and the positioning column 21; the sliding groove 20 is in a closed state under normal circumstances, at this time, there is no gas circulation, and the third elastic element 22 cannot push the positioning column 21, after the valve 17 is placed in the appropriate position of the support body 1, the sealing plate 19 is no longer sealed to the connecting hole 24 by rotating, at this time, the gas will circulate into the sliding groove 20, and the third elastic element 22 will push the positioning column 21 to be clamped on the support body 1.

[0036]

[0037] ​Working principle: the connecting piece can be clamped on the support body 1, so that the support body 1 is assembled into the required valve support, when the valve is placed into the support body 1, the corrugated connecting piece 3 will be deformed, allowing the support body 1 to move away from each other, allowing the valve to be smoothly placed into the support body 1, and the connecting piece 3 will increase the pulling force of the support body 1, so as to fix the valve on the support body 1, facilitating assembly and use; when assembling the support body 1, the opening position of the sleeve 2 can be sleeved on the support body 1, at this time the opening side of the sleeve 2 will be opened, so as to be smoothly sleeved on the support body 1, and the sleeve 2 is convenient for assembling the support body 1, and also convenient for disassembling the support body 1 later; when the sleeve 2 is sleeved on the support body 1, the stop piece 5 will limit the first elastic piece 4, after the sleeve 2 is sleeved on the support body 1, the first elastic piece 4 and the stop piece 5 will increase the pushing force on the support body 1, so as to further fix the support body 1 on the sleeve 2, improving the fixing effect of the sleeve 2 on the support body 1;

[0038] When the support body 1 is taken out from the sleeve 2, because the support body 1 contacts the ball 6, the ball 6 will rotate at this time, so as to reduce the resistance when disassembling the support body 1; when installing the sleeve 2, only one needs to be installed, and the other sleeves 2 will be limited by the connecting line 16, on a line, so as to facilitate the installation of the subsequent sleeve 2; when the sleeve 2 is sleeved on the support body 1, the ball 6 will be pushed into the cavity 10, preventing the ball 6 from affecting the fixing effect of the support body 1, when the support body 1 needs to be taken out from the sleeve 2, the fixed plate 13 is pushed, so that the connecting frame 12 pushes the push plate 11, so that the connecting frame 12 drives the push plate 11 to push the gas in the cavity 10, so that the gas pushes the sealing piece 9, so that the sealing piece 9 pushes the ball 6 to contact the support body 1, so as to facilitate the disassembly of the support body 1; after the sleeve 2 is sleeved on the support body 1, the limiting plate 14 can be rotated, so that the positioning block 15 is clamped with the positioning groove, at this time the connecting frame 12 will be fixed, preventing the connecting frame 12 from being pushed by mistake, causing the ball 6 to contact the support body 1.

[0039] The above front, back, left, right, up and down are based on the drawings in the specification Figure 1 As the standard of human observation angle, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0040] In the description of the application, it is to be understood that the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings and are used only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the application.

[0041] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A valve stent comprising a stent body (1), a connecting tab (3) and a connecting piece; characterized in that: The connecting piece is clamped on the support body (1), the support body (1) is formed into a net shape after being assembled, and the top opening of the assembled support body (1) is larger than the bottom opening, the connecting piece (3) is made of elastic material, and the connecting piece (3) is corrugated; The connecting piece comprises a clamping sleeve (2), the side wall of the clamping sleeve (2) is fixedly connected with the connecting piece (3), and one side of the clamping sleeve (2) is provided with an opening; A group of first elastic members (4) are fixedly connected to the inner wall of the clamping sleeve (2), and a pair of elastic blocking pieces (5) are clamped to the inner wall of the clamping sleeve (2); A cavity (10) is formed in the support body (1), a second elastic member (7) is fixedly connected to the inner wall of the cavity (10), the other end of the second elastic member (7) is fixedly connected with a fixing piece (8), the fixing piece (8) is movably connected with a spherical ball (6), and the spherical ball (6) extends to the inner side wall of the clamping sleeve (2); The inner wall of the cavity (10) is sealingly and slidably connected with a push plate (11), the two ends of the opening side of the clamping sleeve (2) are sealingly and slidably connected with a connecting frame (12) extending into the cavity (10), the connecting frame (12) is fixedly connected with the push plate (11), the inner wall of the cavity (10) is fixedly connected with an elastic sealing piece (9) sealingly wrapped around the spherical ball (6), the sealing piece (9) is fixedly connected with the second elastic member (7), and the connecting frame (12) is fixedly connected with a fixing plate (13) away from the push plate (11); One of the push plates (11) is rotatably connected with a limiting plate (14), the other push plate (11) is provided with a positioning groove, and the limiting plate (14) is fixedly connected with a positioning block (15) corresponding to the positioning groove.

2. The valve stent of claim 1, wherein: The connecting piece (3) is fixedly connected with a connecting line (16) at one end close to each other.

3. A prosthetic heart valve adapted for use with a valve support according to any one of claims 1 to 2, characterized in that: The connecting piece (3) is fixedly connected with a connecting line (16) at one end close to each other.

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