Valve clip delivery device and valve repair system

Abstract

The present invention relates to a valve clip delivery device and valve repair system. The valve clip delivery device includes a main body, a delivery tube, a catheter, and a clamp control assembly. The delivery tube is configured as a bendable, shaped tube and is disposed at the distal end of the main body. The distal end of the delivery tube can penetrate the left atrium through a predetermined location in the heart. The proximal end of the catheter is connected to the main body, and the portion of the catheter extending from the main body is movably disposed in the delivery tube. The catheter can rotate about an axis relative to the delivery tube, and the distal end of the catheter extends from the distal end of the delivery tube to connect with a valve clamp. The clamp control assembly is mounted on the main body and is used to connect with the valve clamp to control the movement of the valve clamp. The valve clip delivery device and valve repair system proposed by the present invention have a simple structure, a small axial dimension, and a short delivery path, making it easy for an operator to control the movement distance and direction. This solves the problems of the prior art in that the valve clip delivery process is cumbersome and has poor controllability.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to a valve clip delivery device and a valve repair system. Background Art

[0002] Heart valves refer to the valves between the atria and ventricles or between the ventricles and arteries. The atrioventricular valves include the mitral valve and the tricuspid valve. The mitral valve is two valves attached to the periphery of the left atrioventricular orifice, connected to the papillary muscles by chordae tendineae, and has the function of preventing blood from the left ventricle from flowing back to the left atrium. Mitral regurgitation is a poor anastomosis of the anterior and posterior leaflets of the mitral valve due to organic or functional changes in the mitral valve leaflets and their related structures. During mitral regurgitation, blood will flow back from the left ventricle to the left atrium, causing a series of pathophysiological changes.

[0003] In recent years, interventional treatment of heart valve disease has developed rapidly due to its advantages of less trauma, relative safety and good efficacy. Among them, the valve repair method developed based on the principle of surgical valve edge-to-edge suturing technology has been recognized for its high safety, simple technical principles and high feasibility. During this operation, the operator needs to use a delivery device to deliver the valve clipper into the patient's body. In related technologies, remote delivery is mostly performed through the patient's femoral artery. Due to the long delivery path and complex device structure, the delivery process is cumbersome and the controllability is poor, which greatly increases the risk of surgery. Summary of the Invention

[0004] The present invention aims to at least address the problems of the prior art in the cumbersome and poorly controllable delivery process of valve clips. This objective is achieved through the following technical solutions:

[0005] A first aspect of the present invention provides a valve clip delivery device, which is used to deliver a valve clamp. The valve clip delivery device includes a main body, a delivery tube, a catheter and a clamp control assembly. The delivery tube is configured as a bendable shaping tube, the delivery tube is disposed at the distal end of the main body, and the distal end of the delivery tube is configured to be able to penetrate into the left atrium through a set position of the heart; the proximal end of the catheter is connected to the main body, the part of the catheter extending out of the main body is movably inserted into the delivery tube, the catheter can rotate around an axis relative to the delivery tube, and the distal end of the catheter extends from the distal end of the delivery tube to be connected to the valve clamp; the clamp control assembly is installed on the main body, and the clamp control assembly is used to be connected to the valve clamp to control the action of the valve clamp.

[0006] The valve clip delivery device proposed in an embodiment of the present invention has a main body that is easy for an operator to hold and operate. The operator can control the delivery tube and the catheter through an established interventional channel to a designated location in the patient's body by moving the main body. The delivery tube can arbitrarily change the bending direction and degree of the delivery tube according to actual conditions and can be fixed and maintained in the set bending state. For example, when the valve clip delivery device is used in a mitral valve repair surgery, the delivery tube and the catheter can pass through the established channel, through the patient's left atrial wall or left atrial appendage, and into the left atrium, thereby delivering a valve clip connected to the distal end of the catheter to the vicinity of the mitral valve. Because the catheter and the delivery tube can rotate relative to each other, the operator can adjust the clamping direction of the valve clip by rotating the catheter. The operator can then clamp the valve clip on the mitral valve by operating the clip control assembly, thereby achieving the purpose of mitral valve repair. The valve clip delivery device proposed in an embodiment of the present invention has a simple structure, a small axial size, and a short delivery path, making it easy for the operator to control the distance and direction of its movement, thereby solving the problems of the cumbersome valve clip delivery process and poor controllability in the prior art.

[0007] In addition, the valve clip delivery device according to the embodiment of the present invention may also have the following technical features:

[0008] In some embodiments of the present invention, the delivery pipe is configured as a metal pipe.

[0009] In other embodiments of the present invention, the delivery tube is configured as a bendable sheath tube.

[0010] In some embodiments of the present invention, the valve clip delivery device further includes a sheath bending adjustment component, which is disposed on the main body and connected to the sheath to control the bending of the sheath.

[0011] In some embodiments of the present invention, the valve clip delivery device further comprises an angle adjustment member connected between the main body and the delivery tube to adjust the angle of the delivery tube.

[0012] The second aspect of the present invention proposes a valve repair system, which includes a valve clamp and a valve clip delivery device proposed according to any of the above embodiments. The valve clamp is detachably connected to the catheter of the valve clip delivery device, and the valve clamp includes a plurality of relatively open and closed clamp arms and a plurality of capture arms.

[0013] The valve repair system according to the embodiment of the present invention has the same advantages as the valve repair system proposed in any of the above embodiments, which will not be described in detail here.

[0014] In addition, the valve clip delivery device according to the embodiment of the present invention may also have the following technical features:

[0015] In some embodiments of the present invention, the clamp control assembly of the valve clamp delivery device includes a clamp arm control assembly and a capture arm control assembly. The clamp arm control assembly is connected to the valve clamp to control the opening and closing of the clamp arm, and the capture arm control assembly is connected to the capture arm to control the opening and closing of the capture arm.

[0016] In some embodiments of the present invention, the capture arm control assembly includes a pull wire, a sliding member and a locking wire member, the pull wire is detachably connected to the capture arm, the sliding member is used to pull the pull wire, and the locking wire member is installed on the sliding member to lock the pull wire.

[0017] In some embodiments of the present invention, at least one slide groove is provided on the handheld portion of the main body, the sliding component can slide along the slide groove, a sliding button is provided on the sliding component, and the sliding button and the wire locking component are at least partially located outside the slide groove.

[0018] In some embodiments of the present invention, the valve repair system further comprises a stent, wherein the stent is connected to the main body of the valve clip delivery device, and the main body can rotate on the stent and move along a set direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference numerals are used throughout the accompanying drawings to denote the same components. In the accompanying drawings:

[0020] Figure 1 A schematic front view of a valve clip delivery device;

[0021] Figure 2 for Figure 1 A schematic top view of the valve clip delivery device is shown;

[0022] Figure 3 A second front view schematic diagram of the valve clip delivery device;

[0023] Figure 4 for Figure 3 A schematic top view of the valve clip delivery device is shown;

[0024] Figure 5 A third front view schematic diagram of the valve clip delivery device;

[0025] Figure 6 for Figure 5 A schematic top view of the valve clip delivery device is shown;

[0026] Figure 7 A schematic diagram of the structure of a valve clip valve repair system;

[0027] Figure 8 This is another structural schematic diagram of a valve clip valve repair system.

[0028] Reference numerals:

[0029] 1000. Valve repair system; 100. Valve clip delivery device; 200. Valve clipper;

[0030] 10. Main body; 11. Handle; 111. Slide groove; 20. Delivery tube; 21. Metal tube; 22. Sheath; 23. Sheath bending adjustment assembly; 30. Catheter; 40. Clamp control assembly; 41. Actuating wire control mechanism; 42. Pull wire control mechanism; 421. Sliding button; 422. Lock wire component; 50. Angle adjustment component. DETAILED DESCRIPTION

[0031] The following will refer to the drawings in the embodiments of the present invention. The terms used in the text are only for the purpose of describing specific example implementation methods and are not to be understood as limiting the present invention. For example, the terms "including" and "having" not only indicate the existence of the stated features, but also do not exclude the existence of other features; the terms "first" and "second" do not imply a sequence or order; the terms "inside", "outside", "above", and "below" are only for the convenience of describing the relationship of one feature relative to another feature shown in the drawings, and do not indicate that they must have a specific orientation. It should be noted that in the field of interventional medical devices, the proximal end refers to the end closer to the operator, and the distal end refers to the end farther from the operator; the axial direction refers to the direction parallel to the line connecting the distal center and the proximal center of the medical device in its natural state. In the description of the present invention, the above definitions are only for the convenience of expression and are not to be understood as limiting the present invention.

[0032] See also Figures 1 to 8 The embodiment of the first aspect of the present invention proposes a valve clip delivery device 100, and the embodiment of the second aspect proposes a valve repair system 1000. The valve clip delivery device 100 is applied to the valve repair system 1000. The valve clip delivery device 100 is used to deliver the valve clipper 200. The specific structure of the valve clipper 200 can be referred to 202210201648.X "Valve Clipper and Valve Repair System".

[0033] See also Figures 1 to 6 , and refer to Figure 7 and Figure 8The valve clip delivery device 100 proposed in this embodiment includes a main body 10, a delivery tube 20, a catheter 30, and a clipper control assembly 40. The delivery tube 20 is configured as a flexible and shaped tube and is disposed at the distal end of the main body 10. The distal end of the delivery tube 20 is configured to be able to penetrate the left atrium through a set portion of the heart. The proximal end of the catheter 30 is connected to the main body 10. The portion of the catheter 30 extending from the main body 10 is movably disposed in the delivery tube 20. The catheter 30 is rotatable relative to the delivery tube 20 about an axis. The distal end of the catheter 30 extends from the distal end of the delivery tube 20 to connect with the valve clipper 200. The clipper control assembly 40 is mounted on the main body 10 and is connected to the valve clipper 200 to control the operation of the valve clipper 200.

[0034] In the valve clip delivery device 100 proposed in this embodiment, the main body 10 is convenient for the operator to hold and operate. The operator can control the delivery tube 20 together with the catheter 30 to reach the specified position in the patient's body through the established intervention channel by moving the main body 10. The delivery tube 20 can arbitrarily change the bending direction and bending degree according to actual conditions, and can be fixed and maintained in the set bending state. For example, when applied to a valve clip surgery to repair the mitral valve, the delivery tube 20 together with the catheter 30 can pass through the established intervention channel, through the patient's left atrial wall or left atrial appendage into the left atrium, and then deliver the valve clipper 200 connected to the distal end of the catheter 30 to the vicinity of the mitral valve. The operator can adjust the clamping direction of the valve clipper 200 by rotating the catheter 30, and then the operator can clamp the valve clipper 200 on the mitral valve by operating the clipper control component 40, thereby achieving the purpose of repairing the mitral valve. The valve clip delivery device 100 and valve repair system 1000 proposed in this embodiment have a simple structure, a small axial dimension, and a short delivery path, which makes it easy for the operator to control the moving distance and direction. In addition, the delivery tube 20 and the catheter 30 are independently controllable, which solves the problem of the cumbersome valve clip delivery process and poor controllability in the prior art.

[0035] like Figure 1 As shown, in the valve clip delivery device 100 proposed in this embodiment, the main body 10 includes a shell, which can be formed by injection molding or 3D printing. The interior of the shell is provided with a receiving cavity, which is used to accommodate some other structures of the valve clip delivery device 100, such as the proximal end of the catheter 30, the clipper control assembly 40, etc. The proximal end of the main body 10 can be provided with a handle 11, such as Figure 1 、 Figure 3 and Figure 5As shown, the handle 11 can be arranged in a vertical direction to facilitate the operator to hold and operate or to facilitate connection to other equipment. The handle 11 can be connected to the main body 10 in an integrally formed manner. In an optional embodiment, a cavity can be provided in the handle 11, and the cavity can be connected to the accommodating cavity of the main body 10, so as to accommodate some other structures of the valve clip delivery device 100, such as some structures in the clamp control assembly 40 can be installed. This will be described in detail below in the embodiment of the valve repair system 1000.

[0036] Please continue reading Figures 1 to 6 The distal end of the main body 10 has an opening communicating with the accommodating cavity. The proximal end of the catheter 30 is located in the accommodating cavity and is connected to the main body 10. The catheter 30 extends from the opening and is movably inserted into the delivery tube 20. The catheter 30 can move and rotate within the delivery tube 20. In other words, the main body 10 and the catheter 30 can rotate relative to the delivery tube 20 about an axis. Therefore, when the delivery tube 20 is adjusted to a set bending state, the operator can rotate the main body 10 and the catheter 30 together, driving the valve clipper 200 connected to the distal end of the catheter 30 to rotate, thereby adjusting the valve clipper 200's clamping direction.

[0037] In addition, an exhaust valve or other structure may be provided between the delivery tube 20 and the main body 10 or the conduit 30, but this embodiment does not specifically limit this. In this embodiment, the delivery tube 20 is configured as a bendable and shaped tube. It should be noted that the term "bendable and shaped tube" in this embodiment means that the delivery tube 20 can be bent into a set shape and restored to its original shape by external force, and the delivery tube 20 will not self-recover, or the self-recovery deformation is extremely small and negligible.

[0038] For example, in some embodiments of the present invention, Figures 1 to 4 As shown, and in conjunction with Figure 7 The delivery pipe 20 is set to a metal pipe 21, for example, it can be set to a heat-treated stainless steel pipe. It can be understood that the heat-treated stainless steel pipe can be bent under the action of external force and can maintain a certain bending shape. During actual use, the operator can bend the delivery pipe 20 to a specified state by directly or indirectly bending it.

[0039] For example, when the direct bending method is adopted, there is no need to set up an additional bending mechanism, such as Figure 7As shown, when used in mitral valve repair surgery, the operator can, based on the patient's specific circumstances and the location of intervention, bend the delivery tube 20 at any time before or during entry into the left atrium to deliver the valve clip 200 to the mitral valve. In this embodiment, the delivery tube 20 is configured as a bendable and shapeable metal tube 21, which not only simplifies the overall structure of the valve clip delivery device 100 but also facilitates operation by the operator.

[0040] For example, in other embodiments of the present invention, Figure 5 and Figure 6 As shown, and in conjunction with Figure 8 The delivery tube 20 is configured as a bendable sheath 22, for example, it can be configured as a polymer material sheath. On this basis, the valve clip delivery device 100 further includes a sheath bending assembly 23, which is provided on the main body 10 and connected to the sheath 22 to control the bending of the sheath 22. For example, the distal end of the sheath 22 has a bending section, and a bending pull wire is provided on the bending section. The bending pull wire can be extended to connect with the sheath bending assembly 23, and the bending section of the sheath 22 is driven to bend by pulling the bending pull wire. Figure 8 As shown, when used in mitral valve repair surgery, the operator can adjust the bend of the delivery tube 20 after entering the left atrium based on the patient's specific conditions and the intervention site, thereby delivering the valve clipper 200 to the mitral valve. In this embodiment, the provision of an adjustable sheath 22 and a sheath bend adjustment assembly 23 facilitates operation.

[0041] Furthermore, in some embodiments of the present invention, the valve clip delivery device 100 may further include an angle adjustment member 50, which is connected between the main body 10 and the delivery tube 20 and is used to adjust the angle of the delivery tube 20. The angle adjustment member 50 and the main body 10 may be fixedly connected to ensure connection reliability. For example, the angle adjustment member 50 may be configured as a universal ball joint or hinge joint, allowing the delivery tube 20 connected thereto to rotate relative to the main body 10 to adjust the angle. This allows the operator to adjust the delivery tube 20 according to actual conditions, facilitating delivery of the valve clip 200 to a desired location.

[0042] Based on the above implementation, please refer to Figure 7 and Figure 8The valve repair system 1000 proposed in the embodiment of the second aspect of the present invention includes a valve clamp 200 and a valve clip delivery device 100 proposed according to any of the above embodiments. The valve clamp 200 and the catheter 30 of the valve clip delivery device 100 are arranged to be detachably connected. The valve clamp 200 includes a plurality of relatively open and closed clamp arms and a plurality of capture arms. When used in a valve repair surgery, the capture arm is used to capture the valve, and the clamp arm is used to clamp the valve. For example, when used in a mitral valve repair surgery, the valve clamp 200 may include two relatively open and closed clamp arms and two capture arms.

[0043] Furthermore, if Figures 1 to 8 As shown, the clipper control assembly 40 of the valve clip delivery device 100 includes a clip arm control assembly and a capture arm control assembly. For example, the clip arm control assembly includes an actuator wire (not shown) and an actuator wire control mechanism 41. The actuator wire is axially movably disposed within the main body 10, and the distal end of the actuator wire is threadedly connected to the valve clip 200 via the catheter 30. The actuator wire control mechanism 41 is connected to the actuator wire and is capable of controlling the movement of the actuator wire. During actual use of the valve repair system 1000, the operator controls the actuator wire control mechanism 41 to move the actuator wire, thereby opening the clip arm. When the clip arm reaches the set valve position, the operator controls the actuator wire control mechanism 41 to move the actuator wire, thereby closing the clip arm, thereby clamping the valve.

[0044] Furthermore, the actuating wire control mechanism 41 can also drive the actuating wire to rotate, thereby disengaging the actuating wire from the valve clip 200. During actual use of the valve repair system 1000, after the valve clip 200 is clamped onto the valve, the operator controls the actuating wire control mechanism 41 to drive the actuating wire to rotate, thereby releasing the threaded connection between the actuating wire and the valve clip 200, allowing the valve clip 200 to remain on the valve and achieve valve repair. In this embodiment, the control knob of the actuating wire control mechanism 41 is located outside the main body 10 and can be located above the handle 11, making it easier for the operator to operate.

[0045] Furthermore, if Figures 1 to 8 As shown, the capture arm control assembly in the clipper control assembly 40 includes a pull wire (not shown) and a pull wire control mechanism 42. The pull wire is connected to the capture arm of the valve clipper 200 via the catheter 30. The pull wire control mechanism 42 is connected to the pull wire and can lock the pull wire and pull the pull wire to open and close the capture arm. Furthermore, the pull wire control mechanism 42 includes a sliding member and a wire locking member 422. The sliding member is connected to the pull wire and can pull the pull wire. The wire locking member 422 is mounted on the sliding member and can lock the pull wire.

[0046] For example, the capture arm has a preloaded elastic force and is in a closed state in the initial state. During the actual use of the valve repair system 1000, the operator can open the locking wire member 422, release the pull wire, and then push the sliding member to pull the pull wire, thereby driving the capture arm to open. When the capture arm captures the valve, the operator can release the sliding member to make the capture arm automatically rebound and cooperate with the clamping arm to further clamp the valve to achieve valve repair.

[0047] On the basis of the above embodiment, the clamp control assembly 40 is mounted on the main body 10 and is partially located in the accommodating cavity of the main body 10, such as Figures 3 to 6 As shown, the pull wire control mechanism 42 is at least partially located outside the main body 10 and can be set above the handle 11 to facilitate the operator's operation. Figure 1 、 Figure 2 and Figure 7 As shown, the pulling wire control mechanism 42 can be arranged in the handle 11. For example, at least one slide groove 111 is provided on the handle 11 of the main body 10, and the sliding member can slide along the slide groove 111. A sliding button 421 is provided on the sliding member, and the sliding button 421 and the locking wire member 422 are at least partially located outside the slide groove 111 for operation by the operator.

[0048] It can be understood that, taking the valve clipper 200 having two capture arms as an example, the pull line can be set to one or two. In some embodiments of the present invention, the number of the pull lines is two, and the two pull lines are respectively connected to one capture arm. Accordingly, Figure 1 、 Figure 2 and Figure 7 As shown, there are two pull-wire control mechanisms 42, and the number of the slide grooves 111 on the handle 11 is two. The two slide grooves 111 are respectively arranged on the opposite sides of the handle 11. Thus, the sliding buttons 421 and the wire locking components 422 of the two pull-wire control mechanisms 42 respectively extend from the two slide grooves 111, which is convenient for the operator to operate and control the pull wire.

[0049] Furthermore, in some embodiments of the present invention, the valve repair system 1000 further includes a stent (not shown), which is connected to the main body 10 of the valve clip delivery device 100, for example, it can be connected to the handle 11 on the main body 10. The main body 10 can rotate on the stent and move along a set direction. For example, the stent can be provided with a support portion that can slide axially on the stent and can also rotate on the stent, thereby driving the main body 10 to rotate and move axially; alternatively, the stent can be provided with a slide groove along which the main body 10 can slide. This is not specifically limited in this embodiment. The provision of the stent in this embodiment facilitates the operator to adjust the position and angle of the main body 10, catheter 20, and delivery tube 30 in the valve clip delivery device 100, and thus adjust the position and angle of the valve clip 200.

[0050] In summary, please refer to Figure 1 、 Figure 2 and Figure 7 When the valve repair system 1000 proposed in this embodiment is used in a mitral valve repair operation, an intervention channel is pre-established on the left atrial appendage or the left atrium wall. Under the guidance of esophageal ultrasound imaging, the operator can drive the valve clip delivery device 100 to move by operating the bracket, or can hold the handle 11 of the valve clip delivery device 100 and move it, so that the valve clip delivery device 100 drives the valve clipper 200 to enter the left atrium through the intervention channel. During this process, the delivery tube 20 can be bent to ensure that the valve clipper 200 at its distal end is close to the mitral valve; after the valve clipper 200 reaches the designated position, the operator can rotate the main body 10 together with the catheter 20 to drive the valve clipper 200 to rotate so that its clamping direction is aligned with the mitral valve. The closing direction remains consistent; the operator can then manipulate the actuator wire control mechanism 41 to drive the actuator wire to move, thereby driving the clamping arm of the valve clamp 200 to open, and then manipulate the sliding button 421 of the pull wire control mechanism 42 to drive the pull wire to move, so that the capture arm of the valve clamp 200 opens, and then use the locking wire component 422 to lock the pull wire so that it stays in a position where it can capture the valve. After fine-tuning the position of the valve clamp 200, the pull wire is released to allow the capture arm to capture the valve. After that, the operator can manipulate the actuator wire control mechanism 41 again to drive the actuator wire to move, thereby driving the clamping arm to clamp the valve, and finally withdraw the pull wire and actuator wire to clamp the valve clamp 200 on the valve to complete the mitral valve repair.

[0051] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A valve clip delivery device for delivering a valve clip, characterized in that: The valve clip delivery device includes a main body, a delivery tube, a catheter, a clamp control assembly and an angle adjustment component. The delivery tube is configured as a bendable shaping tube, the delivery tube is arranged at the distal end of the main body, and the distal end of the delivery tube is configured to be able to penetrate into the left atrium through a set position of the heart; the angle adjustment component is connected between the main body and the delivery tube to adjust the angle of the delivery tube, the proximal end of the catheter is connected to the main body, the part of the catheter extending out of the main body is movably inserted into the delivery tube, the catheter can rotate around the axis relative to the delivery tube, and the distal end of the catheter extends from the distal end of the delivery tube to be connected to the valve clamp; the clamp control assembly is installed on the main body, and the clamp control assembly is used to be connected to the valve clamp to control the action of the valve clamp.

2. The valve clip delivery device according to claim 1, characterized in that: The delivery pipe is configured as a metal pipe.

3. The valve clip delivery device according to claim 1, characterized in that: The delivery tube is configured as a sheath tube with adjustable bending.

4. The valve clip delivery device according to claim 3, characterized in that: The valve clip delivery device further includes a sheath bending adjustment component, which is disposed on the main body and connected to the sheath to control the bending of the sheath.

5. A valve repair system, characterized in that: The valve repair system includes a valve clamp and a valve clip delivery device according to any one of claims 1 to 4, wherein the valve clamp is detachably connected to a catheter of the valve clip delivery device, and the valve clamp includes a plurality of relatively open and closed clamp arms and a plurality of capture arms.

6. The valve repair system according to claim 5, characterized in that: The clamp control assembly of the valve clip delivery device includes a clamp arm control assembly and a capture arm control assembly. The clamp arm control assembly is connected to the valve clamp to control the opening and closing of the clamp arm, and the capture arm control assembly is connected to the capture arm to control the opening and closing of the capture arm.

7. The valve repair system according to claim 6, characterized in that: The capture arm control assembly includes a pull wire, a sliding member, and a wire locking member. The pull wire is detachably connected to the capture arm. The sliding member is used to pull the pull wire. The wire locking member is installed on the sliding member to lock the pull wire.

8. The valve repair system according to claim 7, characterized in that: At least one sliding groove is provided on the main body, and the sliding member can slide along the sliding groove. A sliding button is provided on the sliding member, and the sliding button and the wire locking member are at least partially located outside the sliding groove.

9. The valve repair system according to claim 5, characterized in that: The valve repair system further includes a stent connected to a main body of the valve clip delivery device. The main body can rotate on the stent and move along a set direction.

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