Heart valve repair instrument

Abstract

The invention relates to the technical field of heart valve repairing, in particular to a heart valve repairing instrument which comprises a base tube, a base rod and clamping plates, a base plate and the clamping plates are installed in the base tube, the clamping plates comprise the upper clamping plate and the lower clamping plate, the lower clamping plate is installed at the end of the base rod, and the upper clamping plate is installed on the surface of the base rod; clamping stabilizing structures are mounted on the opposite surfaces of the upper clamping plate and the lower clamping plate in the axial direction of the base rod; a first groove part is formed in the side, close to the lower clamping plate, of the upper clamping plate, a second groove part is formed in the side, close to the upper clamping plate, of the lower clamping plate, the stable clamping structure comprises a first wavy rod and a second wavy rod, the first wavy rod is fixedly installed in the first groove part, and the second wavy rod is fixedly installed in the second groove part; the valve leaflet is prevented from being damaged by the barb structure, the stability of clamping the valve leaflet is improved while the valve leaflet is protected, the stability during closing storage is improved, and the situation that the valve leaflet is damaged due to shaking or movement caused by instability during closing or storage is avoided; the problem that the mitral valve is easily damaged when being clamped by a barb structure is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of heart valve repair, and in particular to a heart valve repair device. Background Art

[0002] In the prior art, a valve clip is usually used to perform edge-to-edge repair surgery. In the process of clamping the mitral valve, a barb structure is provided on the surface of the valve clip to pierce the mitral valve in order to improve the clamping stability, thereby stably maintaining the clamping stability. However, the barb structure piercing the mitral valve can easily cause damage to the mitral valve, which can easily 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 the present invention is that the mitral valve is easily damaged when clamped by the barb structure.

[0005] The present invention provides the following technical solutions: a heart valve repair device, comprising a base tube, a base rod and a splint, wherein a base plate and a splint are installed in the base tube, the splint comprises an upper splint and a lower splint, the lower splint is installed at the end of the base rod, the upper splint is installed on the surface of the base rod, the width of the lower splint is greater than that of the upper splint, and a stabilizing clamping structure is installed on the opposite surfaces of the upper splint and the lower splint along the axial direction of the base rod; a first groove portion is provided on the upper splint near the lower splint side, and a second groove portion is provided on the lower splint near the upper splint side, and the stabilizing clamping structure comprises a first wave rod and a second wave rod, the first wave rod is fixedly installed in the first groove portion, and the second wave rod is fixedly installed in the second groove portion.

[0006] The first wave rod and / or the second wave rod are both protrudingly arranged. The first wave rod is provided with a first protruding portion protruding from the surface of one side of the upper clamping plate close to the lower clamping plate, and the second wave rod is provided with a second protruding portion protruding from the surface of one side of the lower clamping plate close to the upper clamping plate.

[0007] The second groove portion is a through groove structure, and the upper clamping plate and / or the lower clamping plate are both provided with stabilizing clamping structures on both sides along the radial direction of the base rod, and the first wave rods and the second wave rods on both sides are arranged alternately.

[0008] The first wave rod is provided with a second protrusion protruding from the surface of one side of the upper clamping plate away from the lower clamping plate, and the surface of the base rod is provided with a recessed portion for accommodating the second protrusion.

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

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

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

[0012] The adjusting member comprises an adjusting block, a damping member and a mounting buckle. The adjusting block is rotatably mounted on the surface of the base rod and fixedly connected to the upper clamping plate or the lower clamping plate. A damping member is fixedly mounted between the adjusting block and the base rod. A mounting buckle is fixedly mounted on the fixed block close to the damping member side.

[0013] The beneficial effects of the present invention are as follows: 1. The present invention uses the staggered first wave rod and the second wave rod to respectively press the leaflet into the first groove portion and the second groove portion when clamping the leaflet, and respectively snap into the first groove portion and the second groove portion when closed and stored to improve the stability of the connection, and make the convex points and the concave points contact and engage with each other, which can not only prevent the barb structure from damaging the leaflet, and improve the stability of clamping the leaflet while protecting the leaflet, but also improve the stability during closed and stored, and avoid unstable shaking or movement during closing or storage that may damage the leaflet.

[0014] 2. The foldable part of the present invention facilitates the upper or lower clamping plate to deform and fit the leaflets for clamping and closing and storage through its two arcs in opposite directions; at the same time, the third protrusion inserted into the second groove can cooperate with the first protrusion and the second protrusion to improve the stability of the connection during closing and storage. In addition, in the process of clamping the leaflets, the telescopic part is located in the base and telescopically slides, which can adapt to the contraction and relaxation of the heart to avoid tearing and damaging the leaflets during the clamping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the other side of the overall structure of the present invention; Figure 3 This is a schematic diagram of the working state structure of the clamping valve of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the present invention in a storage state; Figure 5 It is a cross-sectional structural schematic diagram of the working state of the clamping valve of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the adjusting member of the present invention; Figure 7 For the present invention Figure 4 The enlarged structural diagram at A in the middle; Figure 8 For the present invention Figure 7 The enlarged structural diagram at B in the middle; Fig. 9 For the present invention Figure 5 Enlarged structural diagram at point C in the middle.

[0017] In the figure: 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. convex point; 71. concave point; 8. easy-to-fold part; 81. clamping part; 811. base; 812. telescopic part; 9. adjusting member; 91. adjusting block; 92. damping member; 93. mounting buckle. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. 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 present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0020] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. Such terms are only used to facilitate the description of the present invention and simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0021] It should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] The disclosed embodiment aims to solve the problem that the barbed structure is prone to damage to the mitral valve. Figure 1 and Figure 2 The embodiment of the present disclosure proposes a heart valve repair device, including a base tube 1, a base rod 2 and a splint, wherein a base plate and a splint are installed in the base tube 1, and the splint includes an upper splint 3 and a lower splint 4, and 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, and the width of the lower splint 4 is greater than that of the upper splint 3, and a stabilizing 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; the upper splint 3 is provided with a first groove portion 31 near the lower splint 4, and the lower splint 4 is provided with a second groove portion 41 near the upper splint 3, and the stabilizing clamping structure includes a first wave rod 32 and a second wave rod 42, and the first wave rod 32 is fixedly installed in the first groove portion 31, and the second wave rod 42 is fixedly installed in the second groove portion 41.

[0023] It should be noted that see Figure 1 and Figure 2 The first wave rod 32 and / or the second wave rod 42 is a wave structure with multiple bends as a whole.

[0024] It should be noted that in the disclosed embodiment, the upper splint 3 and the lower splint 4 can be controlled to clamp the valve in any way that can be clamped in the prior art, for example, an auxiliary arm 5 is installed at the upper splint 3 and the lower splint 4, and the auxiliary arm 5 is driven by electromagnetic force, hydraulic pressure or pneumatic pressure to drive the upper splint 3 and the lower splint 4 to clamp, which will not be described in detail here. In addition, the ends of the upper splint 3 and the lower splint 4 can also be provided with a control hole 6 for accommodating a guide wire, so that the upper splint 3 and the lower splint 4 can be controlled by the guide wire to close and clamp the valve.

[0025] It needs to be explained again that, in the embodiment of the present disclosure, a guide wire is arranged in the control hole 6, and the upper splint 3 and the lower splint 4 are controlled to be clamped or closed by stretching the guide wire in the control hole 6, and the function of the auxiliary arm 5 is mainly to calibrate the movement trajectory of the upper splint 3 and the lower splint 4, so as to achieve precise clamping.

[0026] After being transported to the mitral valve position, the control system in the prior art is used to control the upper clamp 3 and the lower clamp 4 to approach each other for clamping. In the process of the upper clamp 3 and the lower clamp 4 approaching each other for clamping, the first wave rod 32 presses the leaflet into the second groove portion 41, and the second wave rod 42 presses the leaflet into the first groove portion 31. Therefore, without using the barb structure to clamp and avoid damaging the leaflet, the first wave rod 32, the second wave rod 42, the first groove portion 31 and the second groove portion 41 cooperate with each other to stably clamp the leaflet while avoiding the barb structure from tearing the leaflet and causing damage.

[0027] See also Figure 1 , Figure 2 , Figure 4 and Figure 5 The first wave bar 32 and / or the second wave bar 42 are both protrudingly arranged. It should be noted that the protruding arrangement refers to the surface arrangement of the protruding upper clamp plate 3 or the lower clamp plate 4. The first wave bar 32 is provided with a first protruding portion 321 protruding from the surface of one side of the upper clamp plate 3 close to the lower clamp plate 4, and the second wave bar 42 is provided with a second protruding portion 421 protruding from the surface of one side of the lower clamp plate 4 close to the upper clamp plate 3.

[0028] See also Figure 5 The first wave rod 32 and the second wave rod 42 are arranged to protrude, so that the leaflets can be further embedded in the first groove 31 and the second groove 41 during the process of clamping the leaflets, thereby further improving the stability of clamping the leaflets. At the same time, when the upper clamp 3 and the lower clamp 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 for engagement, thereby ensuring the stability of the closure when not in use through the mutual cooperation between the first protrusion 321 and the second groove 41.

[0029] The second groove portion 41 is a through groove structure, and the upper clamping plate 3 and / or the lower clamping plate 4 are both provided with a stabilizing clamping structure on both sides of the radial direction of the base rod 2, and the first wave rods 32 and the second wave rods 42 are both staggered. The staggered first wave rods 32 and the second wave rods 42 can staggeredly press the leaflets into the first groove portion 31 and the second groove portion 41, thereby further stably clamping the leaflets.

[0030] The second wave bar 42 of the lower clamping plate 4 located on either side of the base bar 2 is provided with a third protrusion 422 protruding from the surface of the lower clamping plate 4 away from the upper clamping plate 3. The second protrusion 421 and the third protrusion 422 are an integrated structure combined to form a "mouth" shaped structure.

[0031] In 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 toward the direction of the lower clamping plate 4, so that the first wave bar 32 gradually extends into the second groove 41 for engagement. The two ends of the lower clamping plate 4 close to each other toward the side away from the upper clamping plate 3, so that the third protrusion 422 of the first wave bar 32 extends into the second groove 41 for engagement. Thus, through the mutual cooperation of the first protrusion 321, the second protrusion 421 and the third protrusion 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 fixed to each other, thereby avoiding damage to the leaflets due to shaking caused by unstable closing when closing and removing the upper clamping plate 3 and the lower clamping plate 4 after use.

[0032] See also Figures 7 to 9 The first wave bar 32 and / or the second wave bar 42 are fixedly provided with protruding convex points 7 and concave concave points 71. The convex points 7 and concave points 71 on the surface of the first wave bar 32 can increase the contact area and friction force with the leaflet during the process of contacting and clamping with the leaflet, thereby improving the clamping force and stability during the clamping process.

[0033] It should be noted that see Figures 7 to 9 The convex point 7 and the concave point 71 are both semicircular structures, so as to avoid piercing into the valve leaflet and causing damage.

[0034] See also Figures 7 to 9 The convex points 7 and concave points 71 on the surfaces of the first wave bar 32 and the second wave bar 42 are arranged alternately. It should be noted that the convex points 7 are made of a flexible and easily deformable material, such as nickel-titanium alloy, titanium alloy and polyurethane.

[0035] During the process of closing the upper clamp 3 and the lower clamp 4 after use, the first wave rod 32 extends into the second groove 41 and the first wave rod 32 and the second wave rod 42 are arranged alternately, so that the first wave rod 32 and the second wave rod 42 are in contact with each other. During the process of the first wave rod 32 and the second wave rod 42 being in contact with each other, the convex point 7 can be inserted into the concave point 71, so that it can be stably clamped during clamping to increase the stability of clamping, and increase the stability of the connection during closing to avoid damage to the leaflet due to shaking or movement during removal.

[0036] See also Figures 1 to 5, an easily breakable part 8 with an "S" - shaped structure is provided near the base rod 2 on the upper clamping plate 3 and / or the lower clamping plate 4, and a clamping part 81 with a linear or curved - surface structure is provided on the upper clamping plate 3 and / or the lower clamping plate 4 at a position where the easily breakable part 8 is far from the base rod 2. The "S" - shaped easily breakable part 8 can facilitate the deformation and swinging 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 leaflet. At the same time, it is easy to deform and avoid being too rigid to damage the heart valve. The clamping part 81 with a linear structure has low processing difficulty and can provide stable support for the repair of valve leaflet lesions with regular shapes and relatively hard textures, such as those with a high degree of calcification and becoming relatively hard. The clamping part 81 with a curved - surface structure can better fit the valve leaflet and evenly disperse the pressure, avoiding damage caused by excessive local pressure on the valve leaflet, and improving the clamping stability to prevent the valve leaflet from falling off.

[0037] See Figure 4 and Figure 5 , the clamping part 81 includes a base part 811 and a telescopic part 812. A cavity is opened in the base part 811, and the telescopic part 812 is slidably installed in the base part 811 through the cavity, and the stable clamping structure is located on the telescopic part 812. To improve the sliding stability of the telescopic part 812, a slide rail can also be etched in the base part 811 to ensure the stable sliding of the telescopic part 812 and prevent the telescopic part 812 from detaching from the base part 811.

[0038] It should be noted that, see Figure 1 , Figure 2 , Figure 4 and Figure 5 , the base part 811 has a "U" - shaped structure, and the opposite sides are open structures.

[0039] In the prior art, a barbed structure is usually used to increase the clamping stability of the valve leaflet. During the operation of clamping the valve leaflet, the heart will contract and relax, and the prior art is prone to cause tearing damage to the valve leaflet due to the contraction and relaxation of the heart.

[0040] In the embodiment of the present disclosure, during the process of the upper clamping plate 3 and the lower clamping plate 4 clamping the valve leaflet, when the heart contracts and relaxes, during the process of stably clamping the valve leaflet by the pressure - stabilizing component, the telescopic part 812 can slide and expand and contract in the base part 811, so as to adapt to the contraction and relaxation of the heart during the clamping process, and further avoid causing tearing damage to the valve leaflet due to the contraction and relaxation of the heart during the clamping process.

[0041] See Figures 1 to 5An adjusting member 9 is fixedly installed above or below the upper clamping plate 3 and above or below the lower clamping plate 4, and the adjusting member 9 is rotatably installed 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, so as to adjust the orientation angle of the upper clamping plate 3 and the lower clamping plate 4, thereby better fitting the leaflets and improving the stability of clamping the leaflets.

[0042] It should be noted that, in the embodiment of the present disclosure, when adjusting the angles of the upper clamping plate 3 and the lower clamping plate 4, it is still necessary to cooperate with the imaging guidance in the prior art to determine the required rotation direction and angle.

[0043] See also Figure 6 The adjusting member 9 comprises an adjusting block 91, a damping member 92 and a mounting buckle 93. The adjusting block 91 is rotatably mounted on the surface of the base rod 2 and is fixedly connected to the upper clamping plate 3 or the lower clamping plate 4. The damping member 92 is fixedly mounted between the adjusting block 91 and the base rod 2. The mounting buckle 93 is fixedly mounted on the side of the fixing block close to the damping member 92. The damping member 92 is a coil spring.

[0044] See also Figure 6 A guide wire is installed in the base rod 2, and the guide wire extends from the opening on the surface of the base rod 2 and is connected to the mounting buckle 93 on the inner side of the adjustment block 91. By pulling the guide wire, the adjustment block 91 is driven to overcome the resistance of the damping member 92 and rotate on the surface of the base rod 2, thereby driving the upper clamping plate 3 and the lower clamping plate 4 to rotate and adjust the direction and angle, so as to better fit the leaflet and improve the stability of clamping the leaflet.

[0045] In the use of the disclosed embodiment, the femoral vein or internal jugular vein is first punctured by a puncture needle, and then delivered to the mitral valve position by a guide wire and a delivery system in the prior art. After being delivered to the mitral valve position, the upper splint 3 and the lower splint 4 are driven to clamp the valve leaflets by electromagnetic force, hydraulic pressure or air pressure and an auxiliary arm 5 in the prior art. Alternatively, a guide wire is connected to the control hole 6 at the end of the upper splint 3 and the lower splint 4, so that the upper splint 3 and the lower splint 4 are controlled to clamp the valve leaflets by pulling the guide wire.

[0046] In the process of the upper clamping plate 3 and the lower clamping plate 4 approaching each other for clamping, the easy-folding portion 8 facilitates the upper clamping plate 3 or the lower clamping plate 4 to deform and fit the leaflets for clamping through its two arcs in opposite directions, and then the first wave rods 32 and the second wave rods 42 arranged in an interlaced manner approach each other to respectively press the leaflets into the first groove portion 31 and the second groove portion 41 for clamping, and the interlaced protrusions of the first protrusion 321 and the second protrusion 421 further press the leaflets into the first groove portion 31 and the second groove portion 41, further improving the stability of clamping. At the same time, the convex points 7 and concave points 71 on the surfaces of the first wave rods 32 and the second wave rods 42 can increase the contact surface and clamping force with the leaflets, thereby further improving the stability of clamping.

[0047] When the clamping is completed, the telescopic portion 812 can be located in the base portion 811 and telescopically slide, thereby adapting to the contraction and relaxation of the heart and avoiding tearing and damage of the valve leaflets caused by the contraction and relaxation of the heart.

[0048] When the clamping is completed and the device is stored and taken out, the two ends of the upper clamping plate 3 approach each other toward the lower clamping plate 4, so that the first wave bar 32 gradually extends into the second groove 41 for engagement. The two ends of the lower clamping plate 4 close to each other toward the side away from the upper clamping plate 3, so that the third protrusion 422 of the first wave bar 32 extends into the second groove 41 for engagement. In addition, the convex points 7 and concave points 71 on the surfaces of the first wave bar 32 and the second wave bar 42 can be inserted into each other to further improve the stability of the storage connection, and avoid damage to the leaflets due to unstable connection during storage and removal.

[0049] In the disclosed embodiment, the staggered first wave rods 32 and the second wave rods 42 respectively press the leaflets into the first groove portion 31 and the second groove portion 41, thereby stably clamping the leaflets without using the barb structure to clamp and avoid damaging the leaflets, and avoiding the barb structure from tearing the leaflets and causing damage. In addition, the staggered arrangement of the first wave rods 32 and the second wave rods 42 that compress the leaflets and improve the clamping stability can also be staggered when closed and stored so that the first wave rods 32 and the second wave rods 42 can contact each other when closed and stored, so that the convex point 7 and the concave point 71 can contact each other, which can not only avoid the barb structure from damaging the leaflets, and improve the stability of clamping the leaflets while protecting the leaflets, but also improve the stability during closed storage, and avoid unstable shaking or movement during closing or storage that damages the leaflets.

[0050] At the same time, 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. Moreover, 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 when stored after use, the upper splint 3 and the lower splint 4 can be stably connected to avoid damage to the leaflets due to unstable closure during closing or removal.

[0051] Those skilled in the art should understand that the present invention is not limited to the above embodiments, and 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, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A heart valve repair device, comprising a base tube (1), a base rod (2) and a clamping plate, wherein the base tube (1) is provided with a base plate and a clamping plate, and characterized in that: The clamping plate comprises an upper clamping plate (3) and a lower clamping plate (4); the lower clamping plate (4) is installed at the end of the base rod (2); the upper clamping plate (3) is installed on the surface of the base rod (2); the lower clamping plate (4) is wider than the upper clamping plate (3); and a stabilizing clamping structure is installed on the opposite surfaces of the upper clamping plate (3) and the lower clamping plate (4) along the axial direction of the base rod (2); a first groove portion (31) is provided on the upper clamping plate (3) near the lower clamping plate (4); a second groove portion (41) is provided on the lower clamping plate (4) near the upper clamping plate (3); and the stabilizing clamping structure comprises a first wave rod (32) and a second wave rod (42); the first wave rod (32) is fixedly installed in the first groove portion (31); and the second wave rod (42) is fixedly installed in the second groove portion (41).

2. A heart valve repair device according to claim 1, characterized in that: The first wave bar (32) and / or the second wave bar (42) are both arranged to protrude, and the first wave bar (32) is provided with a first protruding portion (321) protruding from a surface of one side of the upper clamping plate (3) close to the lower clamping plate (4).

3. A heart valve repair device according to claim 2, characterized in that: The first groove portion (31) and the second groove portion (41) are through-groove structures, the upper clamping plate (3) and / or the lower clamping plate (4) are both provided with stabilizing clamping structures on both sides along the radial direction of the base rod (2), and the first wave rod (32) and the second wave rod (42) are arranged in a staggered manner.

4. A heart valve repair device according to claim 3, characterized in that: The first wave bar (32) is provided with a second protrusion (421) protruding from a surface of a side of the upper clamping plate (3) away from the lower clamping plate (4), and the first protrusion (321) and the second protrusion (421) in the first wave bar (32) are combined to form a "mouth"-shaped structure.

5. A heart valve repair device according to claim 4, characterized in that: The upper clamping plate (3) and / or the lower clamping plate (4) are provided with an easy-to-fold portion (8) in an S-shaped structure near the base rod (2), and the upper clamping plate (3) and / or the lower clamping plate (4) are provided with a clamping portion (81) in a straight line structure or a curved surface structure at a position away from the base rod (2) from the easy-to-fold portion (8).

6. A heart valve repair device according to claim 5, characterized in that: The clamping portion (81) comprises a base portion (811) and a telescopic portion (812); the telescopic portion (812) is slidably mounted in the base portion (811); and the stabilizing clamping structure is located in the telescopic portion (812).

7. A heart valve repair device according to claim 6, characterized in that: An adjusting member (9) is fixedly mounted above or below the upper clamping plate (3) and above or below the lower clamping plate (4), and the adjusting member (9) is rotatably mounted on the surface of the base rod (2).

8. A heart valve repair device according to claim 7, characterized in that: The adjusting member (9) comprises an adjusting block (91), a damping member (92) and a mounting buckle (93); the adjusting block (91) is rotatably mounted on the surface of the base rod (2) and is fixedly connected to the upper clamping plate (3) or the lower clamping plate (4); the damping member (92) is fixedly mounted between the adjusting block (91) and the base rod (2); and the mounting buckle (93) is fixedly mounted on the side of the fixing block close to the damping member (92).

9. A heart valve repair device according to claim 8, characterized in that: A protruding convex point (7) and a concave concave point (71) are fixedly arranged on the surface of the first wave bar (32) and / or the second wave bar (42).

10. A heart valve repair device according to claim 9, characterized in that: The convex points (7) and concave points (71) on the surfaces of the first wave bar (32) and the second wave bar (42) are arranged alternately.

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