A heart valve repair device

Abstract

This invention relates to the field of cardiac valve repair technology, specifically a cardiac valve repair device, comprising a base tube, a base rod, and a clamp. A base plate and a clamp are installed inside the base tube. The clamp includes an upper clamp and a lower clamp. A lower clamp is installed at the end of the base rod, and an upper clamp is installed on the surface of the base rod. The lower clamp is wider than the upper clamp. A stabilizing structure is installed on the opposing surfaces of the upper and lower clamps along the axial direction of the base rod. A first groove is formed on the upper clamp near the lower clamp, and a second groove is formed on the lower clamp near the upper clamp. The stabilizing structure includes a first wave rod and a second wave rod. The first wave rod is fixedly installed in the first groove, and the second wave rod is fixedly installed in the second groove. This device avoids damage to the leaflets from the barbed structure, improves the stability of leaflet clamping while protecting the leaflets, and enhances stability during closure and retraction, preventing unstable shaking or movement that could damage the leaflets during closure or retraction. It solves the problem of easy damage to the mitral valve caused by the barbed structure.

Description

Technical Field

[0001] This invention relates to the field of heart valve repair technology, and specifically to a heart valve repair device. Background Technology

[0002] In existing technologies, valve clips are commonly used for edge-to-edge repair surgery. During the clamping process of the mitral valve, barbs are provided on the surface of the valve clip to pierce the mitral valve in order to improve the stability of the clamping. However, the barbs piercing the mitral valve can easily cause damage to the mitral valve, which can lead to tearing, inflammation or perforation of the mitral valve, thereby affecting the normal function of the heart valve.

[0003] Therefore, the present invention provides a heart valve repair device to solve the above problems. Summary of the Invention

[0004] The technical problem to be solved by this invention is that the barbed structure is prone to damage when clamping the mitral valve.

[0005] This invention provides the following technical solution: a heart valve repair device, comprising a base tube, a base rod, and a clamping plate. A base plate and a clamping plate are installed inside the base tube. The clamping plate includes an upper clamping plate and a lower clamping plate. A lower clamping plate is installed at the end of the base rod. An upper clamping plate is installed on the surface of the base rod. The width of the lower clamping plate is greater than that of the upper clamping plate. A stabilizing structure is installed on the opposing surfaces of the upper and lower clamping plates along the axial direction of the base rod. A first groove is formed on the upper clamping plate near the lower clamping plate, and a second groove is formed on the lower clamping plate near the upper clamping plate. The stabilizing structure includes a first wave rod and a second wave rod. The first wave rod is fixedly installed in the first groove, and the second wave rod is fixedly installed in the second groove.

[0006] Both the first wave bar and / or the second wave bar are protruding. The first wave bar has a first protrusion protruding from the surface of the upper clamping plate near the lower clamping plate, and the second wave bar has a second protrusion protruding from the surface of the lower clamping plate near the upper clamping plate.

[0007] The second groove is a through groove structure, and the upper clamping plate and / or the lower clamping plate are equipped with stabilizing structures on both sides of the base rod radially. The first wave rod and the second wave rod on both sides are staggered.

[0008] The first wave bar is provided with a second protrusion that protrudes from the surface of the upper clamping plate away from the lower clamping plate, and the surface of the base bar is provided with a recess to accommodate the second protrusion.

[0009] The upper clamping plate and / or the lower clamping plate are provided with an S-shaped easy-break portion near the base rod, and the upper clamping plate and / or the lower clamping plate are provided with a straight clamping portion away from the base rod at the easy-break portion.

[0010] The clamping part includes a base and a telescopic part, the telescopic part is slidably installed in the base, and the stabilizing structure is located in the telescopic part.

[0011] An adjusting component is fixedly installed above and / or below the upper and / or lower clamping plates, and the adjusting component is rotatably mounted on the surface of the base rod.

[0012] The adjusting component includes an adjusting block, a damping component, and a mounting buckle. The adjusting block is rotatably mounted on the surface of the base rod and fixedly connected to the upper or lower clamping plate. A damping component is fixedly installed between the adjusting block and the base rod. A mounting buckle is fixedly installed on the side of the fixing block near the damping component.

[0013] The beneficial effects of this invention are as follows:

[0014] 1. This invention uses staggered first and second wave rods to press the leaflets into the first and second grooves respectively when clamping them, and to engage them in the first and second grooves respectively when closing and storing them, thereby improving the stability of the connection. Furthermore, the protrusions and concaves engage with each other, which can not only prevent the barbed structure from damaging the leaflets and improve the stability of clamping the leaflets while protecting them, but also improve the stability when closing and storing them, preventing unstable shaking or movement that could damage the leaflets during closure or storage.

[0015] 2. In this invention, the flexible portion utilizes its two opposing arcs to facilitate the deformation and fit of the upper or lower clamping plate to hold and close the leaflet; simultaneously, the third protrusion inserted into the second groove cooperates with the first and second protrusions to improve the stability of the connection during closure. Furthermore, during the holding of the leaflet, the telescopic portion slides and extends from the base, adapting to the heart's contractions and relaxations to prevent tearing or damage to the leaflet during holding. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure on the other side of the overall structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the working structure of the valve clamping device according to the present invention;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the present invention in its stored state;

[0021] Figure 5 This is a schematic cross-sectional view of the valve clamping mechanism in the working state of the present invention;

[0022] Figure 6 This is a schematic cross-sectional view of the adjusting component of the present invention;

[0023] Figure 7 For the present invention Figure 4 Enlarged structural diagram at point A in the middle;

[0024] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point B;

[0025] Figure 9 For the present invention Figure 5 Enlarged structural diagram at point C.

[0026] In the diagram: 1. Base tube; 2. Base rod; 3. Upper clamping plate; 31. First groove; 32. First wave rod; 321. First protrusion; 4. Lower clamping plate; 41. Second groove; 42. Second wave rod; 421. Second protrusion; 422. Third protrusion; 5. Auxiliary arm; 6. Control hole; 7. Protrusion; 71. Recess; 8. Foldable part; 81. Clamping part; 811. Base; 812. Telescopic part; 9. Adjusting component; 91. Adjusting block; 92. Damping component; 93. Mounting buckle. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and "back side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is conventionally placed during use. These terms are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention.

[0030] It should also be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] This disclosure aims to address the problem of damage easily occurring when the barbed structure clamps the mitral valve. In view of this, see... Figure 1 and Figure 2 This disclosure discloses a heart valve repair device, including a base tube 1, a base rod 2, and a clamp. The base tube 1 is equipped with a base plate and a clamp. The clamp includes an upper clamp 3 and a lower clamp 4. The lower clamp 4 is installed at the end of the base rod 2. The upper clamp 3 is installed on the surface of the base rod 2. The width of the lower clamp 4 is greater than that of the upper clamp 3. A stabilizing structure is installed on the opposite surfaces of the upper clamp 3 and the lower clamp 4 along the axial direction of the base rod 2. The upper clamp 3 has a first groove 31 on the side near the lower clamp 4, and the lower clamp 4 has a second groove 41 on the side near the upper clamp 3. The stabilizing structure includes a first wave rod 32 and a second wave rod 42. The first wave rod 32 is fixedly installed in the first groove 31, and the second wave rod 42 is fixedly installed in the second groove 41.

[0032] It should be noted that, see Figure 1 and Figure 2 The first wave bar 32 and / or the second wave bar 42 are generally wave structures with multiple bends.

[0033] It should be noted that in this embodiment, the upper clamp 3 and lower clamp 4 can be controlled to clamp the valve using any existing clamping method. For example, an auxiliary arm 5 can be installed on the upper clamp 3 and lower clamp 4, and the upper clamp 3 and lower clamp 4 can be clamped by electromagnetic force, hydraulic pressure, or pneumatic pressure. Further details are omitted here. In addition, the ends of the upper clamp 3 and lower clamp 4 can be provided with control holes 6 for accommodating guide wires, thereby controlling the closure of the upper clamp 3 and lower clamp 4 to clamp the valve via the guide wires.

[0034] It should be noted again that in this embodiment, a guide wire is provided in the control hole 6, and the upper clamping plate 3 and the lower clamping plate 4 are clamped or closed by the stretching of the guide wire in the control hole 6. The auxiliary arm 5 mainly calibrates the movement trajectory of the upper clamping plate 3 and the lower clamping plate 4, thereby achieving precise clamping.

[0035] After being transported to the mitral valve position, the upper clamping plate 3 and the lower clamping plate 4 are brought closer together and clamped by the existing control system. During the clamping process, the first wave rod 32 presses the leaflet into the second groove 41, and the second wave rod 42 presses the leaflet into the first groove 31. Thus, without using the barbed structure to clamp and avoid damaging the leaflet, the first wave rod 32, the second wave rod 42, the first groove 31 and the second groove 41 work together to stably clamp the leaflet while avoiding the barbed structure tearing the leaflet and causing damage.

[0036] See Figure 1 , Figure 2 , Figure 4 and Figure 5 The first wave bar 32 and / or the second wave bar 42 are both protruding. It should be noted that the protruding setting refers to the protrusion of the upper clamping plate 3 or the lower clamping plate 4. The first wave bar 32 is provided with a first protrusion 321 protruding from the surface of the upper clamping plate 3 near the lower clamping plate 4, and the second wave bar 42 is provided with a second protrusion 421 protruding from the surface of the lower clamping plate 4 near the upper clamping plate 3.

[0037] See Figure 5 The protruding first wave rod 32 and second wave rod 42 can further embed the petals into the first groove 31 and second groove 41 during the clamping process, thereby further improving the stability of clamping the petals. At the same time, when the upper clamping plate 3 and lower clamping plate 4 are closed after use, the first protrusion 321 can extend into the second groove 41 and the second protrusion 421 can extend into the first groove 31 to engage, thereby ensuring the stability of closure when not in use through the mutual cooperation of the first protrusion 321 and the second groove 41.

[0038] The second groove portion 41 is a through groove structure. On both sides of the upper clamping plate 3 and / or the lower clamping plate 4 along the radial direction of the base rod 2, a stable clamping structure is installed. The first corrugated rod 32 and the second corrugated rod 42 are both arranged in a staggered manner. The staggered first corrugated rod 32 and second corrugated rod 42 can staggeringly press the valve leaf into the first groove portion 31 and the second groove portion 41, thereby further stably clamping the valve leaf.

[0039] On the second corrugated rod 42 on any one side of the base rod 2 of the lower clamping plate 4, a third protruding portion 422 protruding from the surface of the lower clamping plate 4 away from the upper clamping plate 3 is provided. The second protruding portion 421 and the third protruding portion 422 are an integrated structure combination forming a "mouth" - shaped structure.

[0040] During the process of closing the upper clamping plate 3 and the lower clamping plate 4 after use, the two ends of the upper clamping plate 3 approach each other in the direction of the lower clamping plate 4, so that the first corrugated rod 32 gradually extends into the second groove portion 41 for engagement. The two ends of the lower clamping plate 4 close towards the side away from the upper clamping plate 3, so that the third protruding portion 422 of the first corrugated rod 32 extends into the second groove portion 41 for engagement. Thus, through the mutual cooperation of the first protruding portion 321, the second protruding portion 421 and the third protruding portion 422, the upper clamping plate 3 can be stably fixed to the lower clamping plate 4, and the two ends of the lower clamping plate 4 can be mutually fixed, thereby avoiding damage to the valve leaf caused by shaking due to unstable closing when closing and removing the upper clamping plate 3 and the lower clamping plate 4 after use.

[0041] See Figures 7 to 9 , convex points 7 and concave points 71 are fixedly arranged on the surface of the first corrugated rod 32 and / or the second corrugated rod 42. The convex points 7 and concave points 71 on the surface of the first corrugated rod 32 can increase the contact area and friction force with the valve leaf during the process of contacting and clamping the valve leaf, thereby improving the clamping force and the stability during the clamping process.

[0042] It should be noted that, see Figures 7 to 9 , both the convex points 7 and the concave points 71 are semi - circular structures, so as to avoid piercing into the valve leaf and causing damage.

[0043] See Figures 7 to 9 , the convex points 7 and concave points 71 on the surface of the first corrugated rod 32 and the second corrugated rod 42 are arranged in a staggered manner. It should be noted that the material of the convex points 7 is a flexible and deformable material, such as nickel - titanium alloy, titanium alloy and polyurethane. [[ID=…]]

[0044] In the process of closing the upper clamping plate 3 and the lower clamping plate 4 after use, the first corrugated rod 32 extends into the second groove portion 41, and the first corrugated rod 32 and the second corrugated rod 42 are arranged in an interleaved manner, so that the first corrugated rod 32 and the second corrugated rod 42 come into contact with each other. During the contact between the first corrugated rod 32 and the second corrugated rod 42, the convex point 7 can be inserted into the concave point 71, so as to stably clamp during clamping to increase the clamping stability, and increase the connection stability during closing to avoid damaging the valve leaf due to shaking or moving during removal.

[0045] See Figures 1 to 5 , an easily foldable portion 8 with an "S" - shaped structure is provided at the upper clamping plate 3 and / or the lower clamping plate 4 near the base rod 2, and a clamping portion 81 with a linear or curved surface structure is provided at the upper clamping plate 3 and / or the lower clamping plate 4 at a position where the easily foldable portion 8 is away from the base rod 2. The "S" - shaped easily foldable portion 8 can facilitate the deformation and swing of the upper clamping plate 3 and the lower clamping plate 4, thereby reducing the driving force required to operate the upper clamping plate 3 and the lower clamping plate 4 to clamp the valve leaf, and being prone to deformation to avoid damaging the heart valve due to excessive rigidity. The clamping portion 81 with a linear structure has low processing difficulty and can provide stable support for the repair of valve leaf lesions with regular shapes and relatively hard textures, such as those with a high degree of calcification and becoming relatively hard. The clamping portion 81 with a curved surface structure can better fit the valve leaf and evenly disperse the pressure, avoiding damage caused by excessive local pressure on the valve leaf, and at the same time improving the clamping stability to prevent the valve leaf from falling off.

[0046] See Figure 4 and Figure 5 , the clamping portion 81 includes a base portion 811 and a telescopic portion 812. A cavity is formed in the base portion 811, and the telescopic portion 812 is slidably installed in the base portion 811 through the cavity, and the stable clamping structure is located at the telescopic portion 812. To improve the sliding stability of the telescopic portion 812, a slide rail can also be etched in the base portion 811 to ensure the stable sliding of the telescopic portion 812 and prevent the telescopic portion 812 from detaching from the base portion 811. <​​​​​​​​​​​​​​​In this embodiment of the present disclosure, during the clamping of the leaflet by the upper clamping plate 3 and the lower clamping plate 4, when the heart contracts and relaxes, the telescopic part 812 can slide and extend in the base 811 while the pressure stabilizing assembly is stabilizing the clamping of the leaflet, so as to adapt to the contraction and relaxation of the heart during the clamping process, thereby avoiding tearing damage to the leaflet caused by the contraction and relaxation of the heart during the clamping process.

[0050] See Figures 1 to 5 An adjusting member 9 is fixedly installed above or below the upper clamping plate 3 and above or below the lower clamping plate 4. The adjusting member 9 is rotatably mounted on the surface of the base rod 2. The adjusting member 9 is used to control the upper clamping plate 3 and the lower clamping plate 4 to rotate circumferentially, thereby adjusting the orientation angle of the upper clamping plate 3 and the lower clamping plate 4, which can better fit the petal leaf and improve the stability of clamping the petal leaf.

[0051] It should be noted that, in this embodiment of the present disclosure, when adjusting the angle of the upper clamping plate 3 and the lower clamping plate 4, it is still necessary to use the imaging guidance in the prior art to determine the required direction and angle of rotation.

[0052] See Figure 6 The adjusting component 9 includes an adjusting block 91, a damping component 92, and a mounting buckle 93. The adjusting block 91 is rotatably mounted on the surface of the base rod 2 and fixedly connected to the upper clamping plate 3 or the lower clamping plate 4. The damping component 92 is fixedly installed between the adjusting block 91 and the base rod 2. The mounting buckle 93 is fixedly installed on the fixing block near the damping component 92. The damping component 92 is a coil spring.

[0053] See Figure 6 A guide wire is installed in the base rod 2. The guide wire extends from the opening on the surface of the base rod 2 and is connected to the mounting buckle 93 inside the adjusting block 91. By pulling the guide wire, the adjusting block 91 is driven to rotate on the surface of the base rod 2 to overcome the resistance of the damping member 92. This, in turn, drives the upper clamping plate 3 and the lower clamping plate 4 to rotate and adjust their orientation and angle, thereby better fitting the leaflets and improving the stability of clamping the leaflets.

[0054] In this embodiment, the femoral vein or internal jugular vein is first punctured with a puncture needle. Then, the needle is delivered to the mitral valve location via a guidewire and a conventional delivery system. Once delivered, the upper clamp 3 and lower clamp 4 clamp the valve leaflets using electromagnetic force, hydraulic pressure, or pneumatic pressure, along with an auxiliary arm 5. Alternatively, a guidewire is connected to the control holes 6 at the ends of the upper clamp 3 and lower clamp 4, allowing the clamping of the valve leaflets to be controlled by the traction of the guidewire.

[0055] During the clamping process of the upper clamping plate 3 and the lower clamping plate 4 approaching each other, the easily bent part 8 uses its two segments of arc in opposite directions to facilitate the deformation of the upper clamping plate 3 or the lower clamping plate 4 to fit the petal leaf for clamping. Then, the staggered first wave rod 32 and the second wave rod 42 approach each other and press the petal leaf into the first groove 31 and the second groove 41 for clamping. The staggered protrusion of the first protrusion 321 and the second protrusion 421 further presses the petal leaf into the first groove 31 and the second groove 41, further improving the clamping stability. At the same time, the protrusions 7 and concave points 71 on the surfaces of the first wave rod 32 and the second wave rod 42 can increase the contact area with the petal leaf and the clamping force, thereby further improving the clamping stability.

[0056] When clamping is complete, the telescopic part 812 can slide telescopically within the base 811 to adapt to the contraction and relaxation of the heart and avoid leaflet tearing damage caused by the contraction and relaxation of the heart.

[0057] After clamping, during storage and removal, the two ends of the upper clamping plate 3 move closer together towards the lower clamping plate 4, causing the first wave rod 32 to gradually extend into the second groove 41 for engagement. The two ends of the lower clamping plate 4 close together towards the side away from the upper clamping plate 3, causing the third protrusion 422 of the first wave rod 32 to extend into the second groove 41 for engagement. Furthermore, the protrusions 7 and concave points 71 on the surfaces of the first wave rod 32 and the second wave rod 42 can interlock to further improve the stability of the storage connection, preventing damage to the leaflets due to unstable connection during storage and removal.

[0058] In this embodiment, the staggered arrangement of the first wave bar 32 and the second wave bar 42 presses the leaflets into the first groove 31 and the second groove 41 respectively, thereby stably clamping the leaflets without using a barbed structure to avoid damage, and preventing the barbed structure from tearing the leaflets. Furthermore, the staggered arrangement of the first wave bar 32 and the second wave bar 42, which improves clamping stability by pressing the leaflets, also allows them to contact each other during closure, enabling the protrusion 7 and the concave point 71 to contact each other. This not only prevents damage to the leaflets from the barbed structure and improves the stability of clamping the leaflets while protecting them, but also enhances the stability during closure, preventing unstable shaking or movement that could damage the leaflets.

[0059] Meanwhile, the first protrusion 321 and the second protrusion 421 can further embed the leaflets into the first groove 31 and the second groove 41, further improving the stability of clamping the leaflets. Furthermore, when closing after use, the first protrusion 321 can extend into the second groove 41, the second protrusion 421 can extend into the first groove 31 for engagement, and the third protrusion 422 can extend into the second groove 41 for engagement, thereby ensuring that the upper clamping plate 3 and the lower clamping plate 4 can be stably connected when stored after use, avoiding damage to the leaflets due to unstable closure when closing or removing.

[0060] Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to this invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A heart valve repair device, comprising a base tube (1), a base rod (2), and a clamp, wherein the base tube (1) is equipped with the base rod (2) and the clamp, characterized in that: The splint includes an upper splint (3) and a lower splint (4). The lower splint (4) is installed at the end of the base rod (2), and the upper splint (3) is installed on the surface of the base rod (2). The width of the lower splint (4) is greater than that of the upper splint (3). A stable clamping structure is installed on the opposite surfaces of the upper splint (3) and the lower splint (4) along the axial direction of the base rod (2); a first groove portion (31) is formed on the side of the upper splint (3) close to the lower splint (4), and a second groove portion (41) is formed on the side of the lower splint (4) close to the upper splint (3). The stable clamping structure includes a first wavy rod (32) and a second wavy rod (42). The first wavy rod (32) is fixedly installed in the first groove portion (31), and the second wavy rod (42) is fixedly installed in the second groove portion (41); The first wavy rod (32) and / or the second wavy rod (42) both protrude. The first wavy rod (32) has a first protrusion portion (321) protruding from the surface of the upper splint (3) close to the lower splint (4); The first groove portion (31) and the second groove portion (41) are through groove structures. Stable clamping structures are installed on both sides of the upper splint (3) and / or the lower splint (4) along the radial direction of the base rod (2); The second wavy rod (42) has a second protrusion portion (421) protruding from the surface of the lower splint (4) close to the upper splint (3). The first protrusion portion (321) and the second protrusion portion (421) form a "mouth" - shaped structure; The first wavy rod (32) and the second wavy rod (42) are arranged in an alternating manner; The upper splint (3) and the lower splint (4) are provided with an easily - breakable portion (8) in an "S" - shaped structure near the base rod (2). The upper splint (3) and the lower splint (4) are provided with a clamping portion (81) having a straight structure or a curved surface structure at a position far from the base rod (2) of the easily - breakable portion (8); The clamping portion (81) includes a base portion (811) and a telescopic portion (812). The telescopic portion (812) is slidably installed in the base portion (811), and the stable clamping structure is located at the telescopic portion (812).

2. The heart valve repair device according to claim 1, characterized in that: An adjusting member (9) is fixedly installed above or below the upper splint (3) or above or below the lower splint (4). The adjusting member (9) is rotatably installed on the surface of the base rod (2).

3. A heart valve repair device according to claim 2, characterized in that: The adjusting member (9) includes an adjusting block (91), a damping member (92), and a mounting buckle (93). The adjusting block (91) is rotatably installed on the surface of the base rod (2) and is fixedly connected to the upper splint (3) or the lower splint (4). A damping member (92) is fixedly installed between the adjusting block (91) and the base rod (2). A mounting buckle (93) is fixedly installed on the side of the adjusting block (91) close to the damping member (92).

4. A heart valve repair device according to claim 3, characterized in that: Convex points (7) and concave points (71) are fixedly provided on the surface of the first wavy rod (32) and / or the second wavy rod (42).

5. A heart valve repair device according to claim 4, characterized in that: The convex points (7) and the concave points (71) on the surface of the first wavy rod (32) and the second wavy rod (42) are arranged in an alternating manner.

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