Valve stent and artificial heart valve

Abstract

The invention belongs to the technical field of heart valves, and particularly relates to a valve stent and an artificial heart valve, the valve stent comprises a stent body, a connecting piece and a connecting piece; the connecting pieces are clamped on the support bodies, the support bodies form a net shape after being formed, openings in the top ends of the formed support bodies are larger than those in the bottom ends of the support bodies, the two sides of the connecting pieces are connected with the connecting pieces, and the connecting pieces are made of elastic materials. The connecting piece can be clamped on the stent body, so that the stent body is spliced into the required valve stent, when a valve is placed in the stent body, the corrugated connecting piece deforms, the stent body can be far away from each other, the valve is smoothly placed in the stent body, and meanwhile, the connecting piece can improve tension for the stent body, so that the valve can be conveniently placed in the stent body. Therefore, the valve is fixed on the support body, and assembling and using are convenient.

Description

Technical Field

[0001] The present invention belongs to the technical field of heart valves, in particular to a valve stent and an artificial heart valve. Background Art

[0002] A valve stent is a medical device that is mainly used to support and fix the heart valve to prevent valve insufficiency or stenosis. The heart valve is an important component of the heart and is 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, leading to impaired heart function. The valve stent is implanted inside the heart to help repair or replace the damaged valve and restore the normal function of the heart.

[0003] However, most of the existing valve stents are designed and formed in an integrated manner. Although the existing related technologies have disclosed the design of the valve stent into a multi-section splicing form, such as the patent with announcement number: CN217366197U, a stent and a heart valve, which discloses "a stent and a heart valve, the stent at least includes: a main body, a hollow columnar structure spliced ​​by diamond grids", that is, although the stent in the application also works by splicing multiple sections, there is no detailed disclosure on how the stent is spliced ​​and through what methods and structures it is connected. The selection and design of the connection method will also affect the use effect and splicing convenience of the valve stent.

[0004] Based on the above problems, the present invention provides a valve stent and an artificial heart valve. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a valve stent described in the present invention includes a stent body, a connecting piece and a connecting piece; the connecting piece is stuck on the stent body, and the stent body forms a mesh after being assembled, and the top opening of the stent body after being assembled is larger than the bottom end, both sides of the connecting piece are connected with connecting pieces, the connecting piece is made of elastic material, and the connecting piece is corrugated.

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

[0008] A group of first elastic members are fixedly connected to the inner wall of the clamping sleeve, and a pair of elastic blocking sheets are clamped to the inner wall of the clamping sleeve.

[0009] The bracket body is provided with a cavity, the inner wall of the cavity is fixedly connected with a second elastic member, the other end of the second elastic member is fixedly connected with a fixing plate, the fixing plate is movably connected with a ball, and the ball extends to the inner wall of the ferrule.

[0010] One end of the connecting pieces close to each other is fixedly connected with a connecting wire.

[0011] The inner wall of the cavity is sealingly and slidingly connected to a push plate, and both ends of the opening side of the ferrule are sealingly and slidingly connected to connecting frames extending into the cavity, the connecting frames are fixedly connected to the push plate, and the inner wall of the cavity is fixedly connected to an elastic sealing sheet sealingly wrapped around a ball, the sealing sheet is fixedly connected to a second elastic member, and the connecting frame is fixedly connected to a fixing plate at one end away from the push plate.

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

[0013] An artificial heart valve is suitable for the above-mentioned valve stent, comprising a flap valve, the inner wall of the flap valve is fixedly connected with a group of flaps, the side wall of the flap valve is provided with multiple groups of slide grooves, the slide grooves are provided with positioning columns, and the flap valve is provided with a driving mechanism for driving the positioning columns to move.

[0014] The driving mechanism includes an annular groove opened in the flap valve and connected with the slide groove, a connecting hole connected with the annular groove is opened on the side wall of the flap valve, a sealing plate for sealing the connecting hole is twisted with the side wall of the flap valve through a torsion spring, the positioning column is sealingly and slidingly connected with the inner wall of the slide groove, and a third elastic member is fixedly connected between the inner wall of the slide groove and the positioning column.

[0015] The beneficial effects of the present invention are as follows: 1. The present invention can clamp the connecting piece on the stent body so that the stent body can be assembled into the required valve stent. When the valve is placed in the stent body, the corrugated connecting piece will deform, so that the stent bodies can be separated from each other, allowing the valve to be smoothly placed in the stent body. At the same time, the connecting piece will increase the pulling force of the stent body, thereby fixing the valve on the stent body, which is convenient for assembly and use.

[0016] 2. When the bracket body is assembled, the opening position of the ferrule can be put on the bracket body. At this time, the opening side of the ferrule will be stretched open, so that it can be smoothly put on the bracket body. The ferrule is convenient for assembling the bracket body and also convenient for the subsequent disassembly of the bracket body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 is a three-dimensional diagram of the support body of the present invention; Figure 2 It is a structural schematic diagram of the connecting piece connecting the bracket body in the present invention; Figure 3 is a cross-sectional view of the ferrule in the present invention; Figure 4 yes Figure 3 A magnified image of point A; Figure 5 It is a schematic diagram of the matching structure of the support body and the flap valve in the present invention; Figure 6 yes Figure 5 Enlarged view of point B.

[0019] In the figure: 1. bracket body; 2. ferrule; 3. connecting plate; 4. first elastic member; 5. baffle; 6. ball; 7. second elastic member; 8. fixing plate; 9. sealing plate; 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

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0021] Embodiment 1: Figures 1 to 4 As shown, a valve stent and an 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, the stent body 1 is formed into a mesh after being assembled, and the top opening of the stent body 1 after being assembled is larger than the bottom end, both sides of the connecting piece 3 are connected with connecting pieces, the connecting piece 3 is made of elastic material, and the connecting piece 3 is corrugated; 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, which is convenient for assembly and use.

[0022] The connecting piece includes a ferrule 2, a side wall of which is fixedly connected to a connecting piece 3, and an opening is provided on one side of the ferrule 2. When the bracket body 1 is assembled, the opening position of the ferrule 2 can be put on the bracket body 1. At this time, the opening side of the ferrule 2 will be stretched open, so that it can be smoothly put on the bracket body 1. The ferrule 2 is used to facilitate the assembly of the bracket body 1 and also facilitate the subsequent disassembly of the bracket body 1.

[0023] A group of first elastic members 4 are fixedly connected to the inner wall of the ferrule 2, and a pair of elastic baffles 5 are clamped on the inner wall of the ferrule 2. In the present application, when the ferrule 2 is put on the bracket body 1, the baffles 5 will limit the first elastic member 4. After the ferrule 2 is put on the bracket body 1, the first elastic member 4 and the baffles 5 will increase the thrust to the bracket body 1, thereby further fixing the bracket body 1 on the ferrule 2, thereby improving the fixing effect of the ferrule 2 on the bracket body 1.

[0024] The bracket body 1 is provided with a cavity 10, and the inner wall of the cavity 10 is fixedly connected with a second elastic member 7, and the other end of the second elastic member 7 is fixedly connected with a fixing plate 8, and the fixing plate 8 is movably connected with a ball 6, and the ball 6 extends to the inner wall of the sleeve 2; when the bracket body 1 is removed from the sleeve 2, the ball 6 will rotate because the bracket body 1 is in contact with the ball 6, thereby reducing the resistance when the bracket body 1 is disassembled.

[0025] The ends of the connecting pieces 3 that are close to each other are fixedly connected with a connecting line 16; when installing the ferrules 2, only one needs to be installed, and the other ferrules 2 will be limited by the connecting line 16 and be in a line, so as to facilitate the installation of subsequent ferrules 2.

[0026] The inner wall of the cavity 10 is sealingly and slidably connected with a push plate 11, and the two ends of the opening side of the ferrule 2 are sealingly and slidably connected with a connecting frame 12 extending into the cavity 10, the connecting frame 12 is fixedly connected to the push plate 11, and the inner wall of the cavity 10 is fixedly connected with an elastic sealing sheet 9 sealed and wrapped around the ball 6, the sealing sheet 9 is fixedly connected to the second elastic member 7, and the end of the connecting frame 12 away from the push plate 11 is fixedly connected with a fixing plate 13; in the present application, when the ferrule 2 is sleeved on the bracket body 1, the ball 6 will be pushed and received in the cavity 10 to prevent the ball 6 from affecting the fixing effect of the bracket body 1, when the bracket body 1 needs to be removed from the ferrule 2, the fixing plate 13 is pushed, so that the fixing plate 13 pushes the connecting frame 12, 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 sheet 9, so that the sealing sheet 9 pushes the ball 6 to contact with the bracket body 1, thereby facilitating the disassembly of the bracket body 1.

[0027] A limiting plate 14 is rotatably connected to one of the push plates 11, and a positioning groove is provided on the other push plate 11, and a positioning block 15 corresponding to the positioning groove is fixedly connected to the limiting plate 14; after the clamping sleeve 2 is put on the bracket body 1, the limiting plate 14 can be rotated to allow the positioning block 15 to engage with the positioning groove. At this time, the connecting frame 12 will be fixed to prevent the connecting frame 12 from being pushed by mistake, causing the ball 6 to contact the bracket body 1.

[0028] Embodiment 2: Figures 5 and 6 As shown, comparative example 1, wherein another embodiment of the present invention is: an artificial heart valve, which is suitable for the above-mentioned valve stent, comprises a flap valve 17, the inner wall of the flap valve 17 is fixedly connected with a group of flaps 18, the side wall of the flap valve 17 is provided with multiple groups of slide grooves 20, the slide grooves 20 are provided with positioning columns 21, and the flap valve 17 is provided with a driving mechanism for driving the positioning columns 21 to move; the present application places the flap valve 17 into the assembled stent body 1, and then pushes the positioning columns 21 through the driving mechanism, so that the positioning columns 21 are stuck in the gap of the stent body 1, thereby firmly fixing the flap valve 17 on the stent body 1.

[0029] The driving mechanism includes an annular groove 23 provided in the flap valve 17 and connected with the slide groove 20, a connecting hole 24 connected with the annular groove 23 is provided on the side wall of the flap valve 17, a sealing plate 19 for sealing the connecting hole 24 is twisted with the side wall of the flap valve 17 through a torsion spring, the positioning column 21 is sealingly and slidingly connected with the inner wall of the slide groove 20, and a third elastic member 22 is fixedly connected between the inner wall of the slide groove 20 and the positioning column 21; the slide groove 20 is in a closed state under normal circumstances, and there is no gas circulation at this time, and the third elastic member 22 cannot push the positioning column 21. After the flap valve 17 is placed in a suitable position of the bracket body 1, the rotating sealing plate 19 no longer seals the connecting hole 24, and the gas will flow into the slide groove 20, and the third elastic member 22 will push the positioning column 21 to get stuck on the bracket body 1.

[0030] Working principle: 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, so that the stent body 1 can be separated from each other, so that the valve can be smoothly placed in the stent body 1. At the same time, the connecting piece 3 will increase the tension for the stent body 1, thereby fixing the valve on the stent body 1, which is convenient for assembly and use. When assembling the stent body 1, the present application can cover the opening position of the clamping sleeve 2 on the stent body. 1, at this time, the open side of the ferrule 2 will be stretched open, so that it can be smoothly sleeved on the bracket body 1, and the ferrule 2 is convenient for assembling the bracket body 1, and it is also convenient for the subsequent disassembly of the bracket body 1; in the present application, when the ferrule 2 is sleeved on the bracket body 1, the baffle 5 will limit the first elastic member 4, and after the ferrule 2 is sleeved on the bracket body 1, the first elastic member 4 and the baffle 5 will increase the thrust to the bracket body 1, so as to further fix the bracket body 1 on the ferrule 2, and improve the fixing effect of the ferrule 2 on the bracket body 1; When the bracket body 1 is removed from the ferrule 2, the ferrule 6 will rotate because the bracket body 1 is in contact with the ball 6, thereby reducing the resistance when the bracket body 1 is disassembled; when installing the ferrule 2, only one ferrule 2 needs to be installed, and the other ferrules 2 will be limited by the connecting line 16 on the same line, thereby facilitating the installation of subsequent ferrules 2; when the ferrule 2 is sleeved on the bracket body 1, the ball 6 will be pushed and received in the cavity 10 to prevent the ball 6 from affecting the fixing effect of the bracket body 1. When it is necessary to remove it from the ferrule 2, push the fixing plate 13, so that the fixing plate 13 pushes the connecting frame 12, so that the connecting frame 12 drives the pushing plate 11 to push the gas in the cavity 10, so that the gas pushes the sealing sheet 9, so that the sealing sheet 9 pushes the ball 6 to contact with the bracket body 1, thereby facilitating the disassembly of the bracket body 1; after the ferrule 2 is put on the bracket body 1, the limit plate 14 can be rotated to allow the positioning block 15 to engage with the positioning groove. At this time, the connecting frame 12 will be fixed to prevent the connecting frame 12 from being pushed by mistake, causing the ball 6 to contact with the bracket body 1.

[0031] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, 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.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A valve stent, comprising a stent body (1), a connecting piece (3) and a connecting piece; characterized in that: The connecting piece is clamped on the bracket body (1); the bracket body (1) forms a mesh after being assembled, and the top opening of the assembled bracket body (1) is larger than the bottom opening; both sides of the connecting piece (3) are connected with connecting pieces; the connecting piece (3) is made of elastic material, and the connecting piece (3) is corrugated.

2. A valve stent according to claim 1, characterized in that: The connecting piece comprises a ferrule (2), a side wall of the ferrule (2) being fixedly connected to a connecting sheet (3), and one side of the ferrule (2) being provided with an opening.

3. A valve stent according to claim 2, characterized in that: 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 sheets (5) are clamped to the inner wall of the clamping sleeve (2).

4. A valve stent according to claim 3, characterized in that: The support body (1) is provided with a cavity (10), the inner wall of the cavity (10) is fixedly connected to a second elastic member (7), the other end of the second elastic member (7) is fixedly connected to a fixing plate (8), the fixing plate (8) is movably connected to a sphere (6), and the sphere (6) extends to the inner wall of the ferrule (2).

5. A valve stent according to claim 4, characterized in that: One end of the connecting pieces (3) close to each other is fixedly connected with a connecting line (16).

6. A valve stent according to claim 5, characterized in that: The inner wall of the cavity (10) is sealingly and slidably connected to a push plate (11), and both ends of the opening side of the ferrule (2) are sealingly and slidably connected to a connecting frame (12) extending into the cavity (10), and the connecting frame (12) is fixedly connected to the push plate (11). The inner wall of the cavity (10) is fixedly connected to an elastic sealing sheet (9) sealingly wrapped around the ball (6), and the sealing sheet (9) is fixedly connected to the second elastic member (7), and the end of the connecting frame (12) away from the push plate (11) is fixedly connected to a fixing plate (13).

7. A valve stent according to claim 6, characterized in that: One of the push plates (11) is rotatably connected to a limit plate (14), and the other push plate (11) is provided with a positioning groove, and the limit plate (14) is fixedly connected to a positioning block (15) corresponding to the positioning groove.

8. An artificial heart valve, which is suitable for a valve stent as claimed in claim 7, characterized in that: The invention comprises a flap valve (17), the inner wall of the flap valve (17) being fixedly connected to a group of flaps (18), the side wall of the flap valve (17) being provided with a plurality of groups of slide grooves (20), the slide grooves (20) being provided with positioning columns (21), and the flap valve (17) being provided with a driving mechanism for driving the positioning columns (21) to move.

9. An artificial heart valve according to claim 8, characterized in that: The driving mechanism comprises an annular groove (23) provided in the flap valve (17) and connected to the slide groove (20); a connecting hole (24) connected to the annular groove (23) is provided on the side wall of the flap valve (17); a sealing plate (19) for sealing the connecting hole (24) is twistedly connected to the side wall of the flap valve (17) via a torsion spring; the positioning column (21) is sealingly and slidably connected to the inner wall of the slide groove (20); and a third elastic member (22) is fixedly connected between the inner wall of the slide groove (20) and the positioning column (21).

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