A recyclable valve clamping device and system

Abstract

The present invention relates to a recyclable valve clamping device and system, the valve clamping device comprises a clamping piece, a clamping arm, a locking assembly, a first connecting member, a driving rod and a lower hinge support, the distal end of the first connecting member is provided with an upper hinge support; the clamping arm comprises an inner clamping arm and an outer clamping arm, the inner side end of the inner clamping arm is rotatably connected to the upper hinge support, the inner side end of the outer clamping arm is rotatably connected to the lower hinge support, and the outer side ends of the inner clamping arm and the outer clamping arm on the same side are rotatably connected; the driving rod passes through the first connecting member and the locking assembly and extends downward to be connected to the lower hinge support; thus, the clamping arm can be clamped or unfolded by driving the driving rod to move up and down, and when the clamping arm is at the maximum unfolding angle, the angle between the inner clamping arm and the outer clamping arm is not less than 160°. Then, the present invention can not only ensure the stability of the clamping arm clamping and locking, but also easily make the valve clamping device easily get rid of the chordae plexus when it needs to be recovered, so as to realize the recovery of the valve clamping device.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a recyclable valve clamping device and system. Background Art

[0002] Mitral regurgitation is one of the most common valvular diseases today. The main causes include mitral ring dilatation, chordae insufficiency, mitral myxomatous degeneration, leaflet prolapse, rheumatic valvular heart disease, ischemic lesions, etc. Mitral valvuloplasty and artificial valve replacement are the most effective methods for treating mitral regurgitation. However, since the operation requires extracorporeal circulation technology support, it causes great trauma to the human body. For elderly patients and patients with more complications, there are relatively high complications and mortality rates.

[0003] Therefore, in recent years, medical personnel and researchers in various countries have explored transcatheter mitral valve repair technology. The main interventional treatment methods include annuloplasty, negative pressure suction suture technology and mitral valve clamping, among which mitral valve clamping has the most reliable effect. The mitral valve clamp delivers an implantable clip to the vicinity of the mitral valve through atrial septal puncture, clamps and fixes the free edges of the anterior and posterior leaflets, so that the leaflets are well aligned at the end of contraction and regurgitation is reduced. However, the opening and closing angle of the clamp arm of the mitral valve clamp cannot complete a 180° reversal to form a straight line, which makes the clamp arm always at an inverse angle with the leaflet and chordae tendineae, making it easy to get caught in the chordae and unable to be recovered into the catheter. In addition, there is a mitral valve clamp whose clamp arm can be reversed at an opening and closing angle, making it difficult for the clamp arm to get caught in the chordae tendineae and can be easily recovered into the catheter. However, since its clamp arm and its clamp arm connection are both formed of elastic materials with shape memory function, the clamp arm completely relies on the elasticity of the material to provide clamping force when clamping, and this clamping locking force is not as reliable as the mechanical locking force. In addition, the width of the clamp arm also affects the effect of the clamp. When the width of the clamp arm is too large, the delivery system will become larger, thereby making the puncture hole larger and causing greater damage to the patient. When the width of the clamp arm is too small, the clamping area of ​​the clamp is too small, resulting in poor clinical effect. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and to provide a recyclable valve clamping device and system, which can not only ensure the stability of the clamp arm clamping and locking, but also easily free the valve clamping device from the chordae tendineae plexus when recovery is required, thereby realizing the recovery of the valve clamping device.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] A recyclable valve clamping device comprises a clamping piece and a clamping arm, a valve accommodating space is formed between the clamping piece and the clamping arm, and further comprises a locking assembly, a first connecting member, a driving rod and a lower hinge support, wherein the distal end of the first connecting member is provided with an upper hinge support;

[0007] The clamping arms include at least one group of outer clamping arms and one group of inner clamping arms, each group of the outer clamping arms includes two outer clamping arms that are symmetrically arranged on the left and right, and each group of the inner clamping arms includes two inner clamping arms that are symmetrically arranged on the left and right; the inner end of each inner clamping arm is rotatably connected to the upper hinge support, the inner end of each outer clamping arm is rotatably connected to the lower hinge support, the outer ends of the inner clamping arms and the outer clamping arms on the same side are rotatably connected, and the valve accommodating space is formed between the inner clamping arms and the clamping sheets;

[0008] The driving rod passes through the first connecting member and the locking assembly and extends downward to be connected to the lower hinge support; thus, the clamping arms can be clamped or unfolded by driving the driving rod to move up and down, and when the clamping arms are at the maximum unfolding angle, the angle between the inner clamping arm and the outer clamping arm is not less than 90°;

[0009] The locking assembly is fixedly connected to the distal end of the first connecting member, and is used to lock the driving rod and thereby limit the upward and downward movement of the driving rod.

[0010] Furthermore, in the above valve clamping device, the inner clamping arm is connected to the upper hinge support via a first pin, the outer clamping arm is connected to the lower hinge support via a second pin, and the inner clamping arm and the outer clamping arm are connected via a third pin;

[0011] Or, the inner clamp arm is a rigid structure, the outer clamp arm and the lower hinge support are integrally formed of elastic material, and the inner end of the inner clamp arm is connected to the upper hinge support via a first pin;

[0012] Alternatively, the inner clamp arm, the outer clamp arm and the lower hinge support are integrally formed from elastic material.

[0013] Furthermore, in the above valve clamping device, the locking assembly includes a lock seat, a lock member, an elastic member and an unlocking member, the lock member and the elastic member are both arranged in the lock seat, the lock seat is fixedly connected to the first connecting member, and the driving rod passes through the lock seat, the lock member and the elastic member;

[0014] The elastic member is used to push the locking member to keep it in a locked state, and the locking member clamps the driving rod in the locked state;

[0015] The unlocking member is used to push the locking member and the elastic member to move to achieve unlocking. During unlocking, the elastic member is compressed, and at this time, the driving rod is released from the clamping of the locking member.

[0016] As an embodiment of the above-mentioned valve clamping device, the lock seat is a square frame with a middle portion passing through, and a card block protruding inward is provided on one side of the inner side wall of the lock seat; the lock element is a sheet, and one side of the lock element is clamped on the upper side of the card block; the elastic element is provided on the upper side of the lock element; in the locked state, the elastic element pushes the side of the lock element away from the card block to move downward, so that the lock element remains in an inclined state and thus locks the drive rod;

[0017] The unlocking member is a closed-loop metal wire passing through the lock seat, one side of the unlocking member is restricted to the lower side of the card block, and the other side is located at the lower side of the side of the lock member away from the card block. Then, when the unlocking member is pulled upward, the unlocking member will pull the lock member and the elastic member away from the side of the card block to move upward, so that the lock member tends to a horizontal state, thereby releasing the lock on the drive rod.

[0018] As an embodiment of the above-mentioned valve clamping device, the lock seat is a square frame with a middle portion passing through, and a lock hinge support extending inward is provided on one side of the lock seat; the lock is a sheet, and the middle portion of the lock is hinged to the lock hinge support; the elastic member is provided on the upper side of the lock; in the locked state, the elastic member pushes one side of the lock to move downward, so that the lock remains in an inclined state and thus locks the drive rod;

[0019] The unlocking member is a closed-loop metal wire passing through the lock seat, one side of the unlocking member is restricted to the lower side of the lock hinge support, and the other side is located at the lower side of the lock member away from the lock hinge support. Then, when the unlocking member is pulled upward, the unlocking member will pull the lock member and the elastic member away from the side of the lock hinge support and move upward, so that the lock member tends to a horizontal state, thereby releasing the lock on the drive rod.

[0020] As an embodiment of the above valve clamping device, the lock seat is a square frame with a middle portion passing through; the lock element includes two columnar bodies, the two columnar bodies are respectively arranged on both sides of the driving rod, and the elastic member is arranged on the upper sides of the two columnar bodies; in the locked state, the elastic member pushes the two columnar bodies to move closer to each other, thereby clamping and locking the driving rod;

[0021] The unlocking member is a closed-loop metal wire passing through the lock seat, and the two sides of the unlocking member are respectively restricted at the lower sides of the two columnar bodies. Then, when the unlocking member is pulled upward, the two columnar bodies move upward and separate from each other at the same time, thereby releasing the lock on the driving rod.

[0022] Furthermore, in the above valve clamping device, both sides of the middle clamping section of the inner clamping arm are provided with outwardly extending extensions, and the outer contour of the extensions is an arc-shaped rounded corner.

[0023] A recyclable valve clamping system, any of the above-mentioned recyclable valve clamping devices, also includes a conveying device, the conveying device includes a handle assembly and a tube body assembly, the proximal end of the tube body assembly is connected to the handle assembly, and the distal end is connected to the first connecting piece, and the clamping and unfolding of the clamping plate and the clamping arm can be controlled by the handle assembly.

[0024] Furthermore, in the above-mentioned valve clamping system, the tube body assembly includes a tube body, a fixing head, a second connecting member, a sliding rod and a control rod, the fixing head is fixedly connected to the distal end of the tube body, the second connecting member is fixedly connected to the fixing head, and a corresponding buckling structure is provided between the second connecting member and the first connecting member;

[0025] The distal end of the control rod is connected to the sliding rod, and the sliding rod is detachably connected to the proximal end of the driving rod; when the second connecting member is buckled with the first connecting member, the control rod can be driven to drive the sliding rod to move, thereby driving the sliding rod to connect with the driving rod, and when the sliding rod is connected and fixed with the driving rod, the buckling structure is locked.

[0026] As an embodiment of the above valve clamping system, the second connecting member is tubular, and the sliding rod can freely extend and rotate through the interior of the second connecting member;

[0027] The slide bar is threadedly connected to the driving bar. When the second connecting member is buckled with the first connecting member, the slide bar is driven to extend into the first connecting member. The slide bar is then rotated to connect and fix the slide bar to the driving bar, and the buckling structure is locked at the same time.

[0028] As an embodiment of the above valve clamping system, the sliding rod is a hollow tube, the proximal end of the sliding rod extends into the tube body and is connected to the control rod, and the distal end extends downward and sleeves on the outer periphery of the second connecting member;

[0029] The side wall of the second connecting member is provided with a protruding block protruding outwards for connecting with the fixed head, the middle part of the slide rod is provided with a sliding groove allowing the protrusion to pass through, and the protrusion passes through the sliding groove from the inside of the slide rod to be connected and fixed with the fixed head;

[0030] The proximal end of the driving rod is provided with a boss protruding outward, and the distal end of the sliding rod is provided with an L-shaped slot allowing the boss to slide in, and the width of the slot is not less than the width of the L-shaped slot, so as to allow the sliding rod to rotate relative to the second connecting member; the first connecting member and the second connecting member are both provided with corresponding slideways allowing the boss to slide, and after the first connecting member and the second connecting member are buckled, the driving rod can slide between the first connecting member and the second connecting member;

[0031] After the first connecting member and the second connecting member are buckled together, the sliding rod is driven to move and rotate, so that the boss can be clamped in the L-shaped slot, and the buckling structure can be locked at this time.

[0032] As an embodiment of the above-mentioned valve clamping system, the buckle structure includes an elastic buckle hook provided at the distal end of the second connecting member and a buckle hole provided at the proximal end of the first connecting member, the buckle hole corresponds to the elastic buckle hook, and in a natural state, the elastic buckle hook automatically contracts inwardly and disengages from the buckle hole;

[0033] Then, when connecting the first connecting member and the second connecting member, the elastic hook is inserted into the first connecting member, and then the sliding rod is driven to extend into the first connecting member and connect with the driving rod. At this time, the sliding rod pushes the elastic hook to rotate outward and engage with the buckle hole, thereby locking the engaging structure.

[0034] Furthermore, in the above-mentioned valve clamping system, the conveying device also includes two first wires, the proximal ends of the first wires are connected to the handle assembly, the distal ends pass through the interior of the tube body assembly and extend from the distal end of the tube body assembly and are connected to the clamping piece, each of the first wires is respectively connected to one of the clamping pieces, so that the clamping piece can be clamped and contracted by pulling the first wire, and the clamping piece can be freely unfolded by loosening the first wire.

[0035] Furthermore, in the above-mentioned valve clamping system, the conveying device also includes a second wire rope, the proximal end of which is connected to the handle assembly, and the distal end of which passes through the interior of the tube body assembly and extends out from the distal end of the tube body assembly and is connected to the locking assembly, so that the locking assembly can be unlocked by pulling the second wire rope, and the locking assembly can be freely locked by loosening the second wire rope.

[0036] Furthermore, in the above-mentioned valve clamping system, the handle assembly includes a housing, a telescopic rod, a telescopic adjustment knob and a rotary adjustment knob, the telescopic adjustment knob is rotatably mounted on the proximal end of the housing, the distal end of the telescopic rod extends into the housing and is slidably connected to the housing, and the proximal end thereof extends out of the housing and passes through the telescopic adjustment knob, and the telescopic rod is threadedly connected to the telescopic adjustment knob;

[0037] The rotation adjustment knob is rotatably mounted on the proximal end of the telescopic rod. A sliding hole is provided in the telescopic rod to allow the proximal end of the control rod to pass through. The proximal end of the control rod passes through the sliding hole and is connected to the rotation adjustment knob. Thus, rotating the rotation adjustment knob can drive the control rod to rotate; rotating the telescopic adjustment knob can drive the telescopic movement of the telescopic rod, thereby driving the telescopic movement of the control rod.

[0038] Furthermore, in the above-mentioned valve clamping system, the handle assembly includes two first pull rods, each of the first pull rods is connected to one of the first wires, and the first wires can be pulled by pulling the first pull rods.

[0039] Furthermore, in the above-mentioned valve clamping system, the handle assembly includes a second pull rod, and the second pull rod is connected to the second wire rope, and the second wire rope can be pulled by pulling the second pull rod.

[0040] The present invention has the following beneficial effects: the present invention provides a recyclable valve clamping device and system, the clamping device adopts a mechanical locking structure, and the clamping arms can provide a stable and reliable locking force after clamping, thereby reducing the risk of the clamping device falling off; the inner clamping arm of the valve clamping device is reversible, and when the valve clamping device needs to be recovered, the clamping arm can be driven to fully unfold, and at this time, the inner clamping arm facing the side of the clamping plate will not have a reverse angle to hook the tendon cord, so that the clamping arm can easily get rid of the tendon cord plexus and achieve recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a diagram of the anatomical structure of the human heart;

[0042] Figure 2 It is a schematic diagram of the overall structure of the recyclable valve clamping device of the present invention;

[0043] Figure 3 It is a schematic structural diagram of the recyclable valve clamping device of the present invention when clamped;

[0044] Figure 4 It is a schematic diagram of the structure of the recyclable valve clamping device of the present invention when it is unfolded at a certain angle;

[0045] Figure 5 It is a schematic structural diagram of the recyclable valve clamping device of the present invention when it is fully deployed;

[0046] Figure 6 It is a schematic diagram of the retrievable valve clamping device of the present invention being opened at a certain angle at the mitral valve leaflet;

[0047] Figure 7 for Figure 6 A partial enlarged schematic diagram of

[0048] Figure 8 A schematic diagram of the retrievable valve clipping device of the present invention being fully deployed at the mitral valve leaflet;

[0049] Fig. 9 for Figure 8 A partial enlarged schematic diagram of

[0050] Figure a1 This is a schematic diagram of the structure of embodiment a of the present invention when it is unfolded at a certain angle;

[0051] Figure a2 It is a schematic diagram of the structure of embodiment a of the present invention when it is fully unfolded;

[0052] Figure b1 This is a schematic diagram of the structure of embodiment b of the present invention when it is unfolded at a certain angle;

[0053] Figure b2 This is a schematic diagram of the structure of embodiment b of the present invention when it is fully unfolded;

[0054] Fig.10 It is a schematic diagram of the structure of the locking assembly of the present invention when it is locked;

[0055] Fig.11 It is a schematic diagram of the structure of the locking assembly of the present invention when it is unlocked;

[0056] Figure c1 is a schematic diagram of the structure of embodiment c of the present invention when locked;

[0057] Figure c2 is a schematic diagram of the structure of embodiment c of the present invention when unlocking;

[0058] Figure d1 is a schematic diagram of the structure of embodiment d of the present invention when locked;

[0059] Figure d2 is a schematic diagram of the structure of embodiment d of the present invention when unlocking;

[0060] Fig.12 It is a schematic side view of the structure of the clamp arm of the present invention;

[0061] Fig.13 It is a schematic structural diagram of the conveying device of the present invention;

[0062] Fig.14 It is a schematic diagram of the exploded structure of the tube body assembly and the valve clamping device of the present invention;

[0063] Fig.15 A schematic diagram of the structure of the first connecting member and the second connecting member connected to each other according to the present invention;

[0064] Figure e1 is a schematic diagram of the exploded structure of the tube assembly and the valve clamping device of embodiment e of the present invention;

[0065] Figure e2 is a schematic structural diagram of the connection between the first connecting member and the second connecting member of embodiment e of the present invention;

[0066] Figure e3 is a schematic diagram of the structure of the first connecting member and the second connecting member of embodiment e of the present invention after being fastened together and not locked;

[0067] Figure f1 is a schematic structural diagram of the connection between the first connecting member and the second connecting member of embodiment f of the present invention;

[0068] FIG. f2 is a schematic diagram of the exploded structure of the first connecting member and the second connecting member of Embodiment f of the present invention;

[0069] Fig.16 It is a structural schematic diagram of the connection between the tube body assembly and the valve clamping device of the present invention;

[0070] Fig.17 It is a schematic diagram of the overall structure of the handle assembly of the present invention;

[0071] Fig.18 It is a cross-sectional schematic diagram of the handle assembly of the present invention.

[0072] Specific structural description in the figure: LA left atrium, LF leaflet, MV mitral valve, LV left ventricle, CT tendon, 1 clamping piece, 11 valve accommodating space, 2 clamping arms, 21 inner clamping arms, 211 extension, 22 outer clamping arms, 23 first pin, 24 second pin, 25 third pin, 3 locking assembly, 31 locking seat, 311 card block, 312 locking member hinge support, 32 locking member, 321 columnar body, 33 elastic member, 34 unlocking member, 4 driving rod, 41 lower hinge support, 42 boss, 5 first Connecting piece, 51 upper hinge support, 52 slide, 53 buckle hole, 6 tube body assembly, 61 tube body, 62 fixed head, 63 second connecting piece, 631 protrusion, 632 elastic buckle hook, 64 slide rod, 641 slide groove, 642 L-shaped slot, 65 control rod, 66 first rope, 67 second rope, 7 handle assembly, 71 shell, 72 telescopic rod, 721 slide hole, 73 telescopic adjustment knob, 74 rotation adjustment knob, 75 locking nail, 76 guide block, 77 first pull rod, 78 second pull rod. DETAILED DESCRIPTION

[0073] The present invention is further described in detail below with reference to the embodiments given in the accompanying drawings.

[0074] Reference Figure 2 A recyclable valve clamping device comprises a clamping piece 1 and a clamping arm 2, wherein a valve accommodating space 11 is formed between the clamping piece 1 and the clamping arm 2, and then, when clamping a leaflet LF, two leaflets LF extend into two valve accommodating spaces 11 respectively, and the leaflet LF can be clamped by the clamping piece 1 and the clamping arm 2, and the valve clamping device further comprises a locking assembly 3, a first connecting member 5, a driving rod 4 and a lower hinge support 41, and an upper hinge support 51 is provided at the distal end of the first connecting member 5;

[0075] The clamping arm 2 includes at least one group of outer clamping arm groups and one group of inner clamping arm groups (preferably one group, when multiple groups are needed, multiple groups of outer clamping arm groups and inner clamping arm groups are arranged side by side), each group of the outer clamping arm groups includes two outer clamping arms 22 arranged symmetrically on the left and right, and each group of the inner clamping arm groups includes two inner clamping arms 21 symmetrically on the left and right; the inner end of each of the inner clamping arms 21 is rotatably connected to the upper hinge support 51, and the inner end of each of the outer clamping arms 22 is rotatably connected to the lower hinge support 41, and the outer ends of the inner clamping arm 21 and the outer clamping arm 22 on the same side are rotatably connected, and the valve accommodating space 11 is formed between the inner clamping arm 21 and the clamping sheet 1; it should be noted that the "inner end and outer end" here are judged based on the central axis of the driving rod, the end of the inner and outer clamping arms close to the central axis of the driving rod is the inner end, and the end away from the central axis of the driving rod is the outer end, which can be referred to Figure 2 Results shown;

[0076] The driving rod 4 passes through the first connecting member 5 and the locking assembly 3 and extends downward to be connected to the lower hinge support 41; thus, the clamping arm 2 can be clamped or unfolded by driving the driving rod 4 to move up and down. When the clamping arm 2 is at the maximum unfolding angle, the angle between the inner clamping arm 21 and the outer clamping arm 22 (the angle between the inner clamping arm 21 and the outer clamping arm 22 toward the driving rod 4) is not less than 90°. At this time, the side of the inner clamping arm 21 facing the clamping sheet will not have a reverse angle to hook the tendon cord, which can ensure that the valve clamping device can be easily detached from between the tendon cords; preferably, the angle between the inner clamping arm 21 and the outer clamping arm 22 is above 120°, preferably above 160°;

[0077] The locking assembly 3 is fixedly connected to the distal end of the first connecting member 5 (in the description of the present invention, the distal end refers to the end away from the surgical operator, and the proximal end refers to the end close to the surgical operator), and the locking assembly 3 is used to lock the driving rod 4 and thereby limit the up and down movement of the driving rod 4.

[0078] Specifically, refer to Figure 3-5 By controlling the extension length of the driving rod 4 to push the lower hinge support 41 up and down, the unfolding angle of the clamp arm 2 can be changed. Figure 3 In the middle, the clamping arm is in the clamping state, at this time, the driving rod 4 pulls the lower hinge support 41 to move upward to the highest point position, and the angle between the inner clamping arm 21 and the outer clamping arm 22 approaches 0; Figure 4 In the process, the driving rod 4 pushes the lower hinge support 41 to move downward, at which time the inner clamp arm 21 and the outer clamp arm 22 are opened at a certain angle, and the inner clamp arm 21 is pulled downward to open; Figure 5 In the embodiment, the clamp arm 2 is in the maximum extended state, at which time the driving rod 4 pushes the lower hinge support 41 downward to the lowest point, and the angle between the inner clamp arm 21 and the outer clamp arm 22 is close to 180°.

[0079] Regarding the purpose of the present invention, refer to Figure 6-9 ,exist Figure 6 In the process, the valve clamping device is transported through the left atrium LA and vertically delivered to the middle position of the mitral valve MV by the conveying device. At this time, the conveying device is manipulated to control the expansion angle of the clamping piece 1 and the clamping arm 2 so that the leaflet extends into the valve accommodating space 11, and the leaflet is clamped by the clamping piece 1 and the clamping arm 2. The opening and closing angle of the clamping arm 2 is adjusted to make the mitral valve reach the optimal closed state.

[0080] When the treatment is completed and the valve clip device needs to be removed, refer to Figure 7 , because the clamp arm will hang on the chordae tendineae CT after it is opened, and the clamp arm 2 after it is opened cannot be taken out upwards under the obstruction of the mitral valve MV. Figure 8-9 When the valve clamping device of the present invention is taken out, the lower hinge support 41 can be pushed downward by the driving rod 4, so that the clamping arm 2 can be turned over and fully unfolded. At this time, the width of the entire valve clamping device reaches the minimum value, and there is no angle between the clamping arm 2 and the leaflet and the chordae tendineae, so that it can be easily freed from the chordae tendineae and pulled upward freely, thereby realizing the recyclability of the valve clamping device.

[0081] Regarding the embodiment of the clamp arm 2 connection structure of the present invention, refer to Figure 3-5 The inner clamp arm 21 is connected to the upper hinge support 51 through a first pin 23, the outer clamp arm 22 is connected to the lower hinge support 41 through a second pin 24, and the inner clamp arm 21 and the outer clamp arm 22 are connected through a third pin 23; the components are rotatably connected through pins, thereby realizing the free rotation of the inner clamp arm 21 and the outer clamp arm 2, thereby realizing the function of the present invention.

[0082] In addition to the above-mentioned embodiments, there are other possible implementation modes for the clamp arm connection structure of the present invention. Embodiment A and Embodiment B are listed here for supplementary explanation. However, it should be noted that the protection scope of the present invention is not limited thereto. The implementation modes obtained by conventional transformation means all belong to the protection scope of the present invention.

[0083] Example a.

[0084] Reference Figure a1-a2 The inner clamp arm 21 is a rigid structure, the outer clamp arm 22 and the lower hinge support 41 are integrally formed by elastic material, and the inner end of the inner clamp arm 22 is connected to the upper hinge support 51 through a first pin; wherein the elastic material is preferably nickel-titanium alloy material.

[0085] Example b.

[0086] Reference Figure b1-b2The inner clamp arm 21, the outer clamp arm 22 and the lower hinge support 41 are integrally formed of an elastic material, wherein the elastic material is preferably a nickel-titanium alloy material.

[0087] Regarding the structure of the locking assembly of the present invention, refer to Figure 10-11 The locking assembly 3 includes a lock seat 31, a lock member 32, an elastic member 33 and an unlocking member 34. The lock member 32 and the elastic member 33 are both arranged in the lock seat 31. The lock seat 31 is fixedly connected to the first connecting member 5. The connection method is not limited to: welding, riveting, threaded connection, bonding, and laser welding is preferred. The driving rod 4 passes through the lock seat 31, the lock member 32 and the elastic member 33.

[0088] The elastic member 33 is used to push the locking member 32 to keep it in a locked state. In the locked state, the locking member 32 clamps the driving rod 4.

[0089] The unlocking member 34 is used to push the locking member 32 and the elastic member 33 to move to achieve unlocking. When unlocking, the elastic member 33 is compressed, and at this time, the driving rod 4 is released from the clamping of the locking member 32.

[0090] Specifically, as a preferred embodiment of the present invention, the lock seat 31 is a square frame with a through middle, and a block 311 protruding inward is provided on one side of the inner wall of the lock seat 31; the lock element 32 is sheet-shaped, and one side of the lock element 32 is stuck on the upper side of the block 311; the elastic element 33 is provided on the upper side of the lock element 32; in the locked state, the elastic element 33 pushes the lock element 32 away from the side of the block 311 to move downward, so that the lock element 32 maintains an inclined state and thus locks the drive rod 4; the opening and closing angle of the clamp arm 2 is locked by locking the drive rod 4. The material of the lock element 32 is a hard alloy suitable for implantation, such as a cobalt-based alloy or a titanium alloy, and cobalt-chromium alloy is preferably used herein; the material of the elastic element 33 is an elastic material suitable for implantation, such as a nickel-titanium alloy or 316L stainless steel, and nickel-titanium alloy is preferably used herein;

[0091] The unlocking member 34 is a closed-loop metal wire passing through the lock seat 31. One side of the unlocking member 34 is restricted by the lower side of the block 311, and the other side is located at the lower side of the side of the lock member 32 away from the block 311. Then, when the unlocking member 34 is pulled upward, the side of the unlocking member 34 restricted by the block 311 does not move, and the unlocking member 34 will pull the lock member 32 and the side of the elastic member 33 away from the block 311 to move upward, so that the lock member 32 tends to a horizontal state, and the lock of the driving rod 4 is released. The unlocking principle is that a through hole with a larger aperture than the diameter of the driving rod 4 is opened on the lock member 32. When the lock member 32 is in an inclined state, the lock member 32 will clamp the two sides of the driving rod 4, thereby clamping the driving rod 4. When the lock member 32 is in a horizontal state, the through hole with a larger aperture in the lock member 32 cannot restrict the driving rod 4, thereby achieving unlocking.

[0092] In addition to the above-mentioned embodiments, the locking assembly structure of the present invention has other possible implementation modes. Embodiments C and D are listed here for supplementary explanation. However, it should be noted that the protection scope of the present invention is not limited thereto. The implementation modes obtained by conventional transformation means all fall within the protection scope of the present invention.

[0093] Example c.

[0094] Referring to Figures c1-c2, the lock seat 31 is a square frame with a through middle, and a lock hinge support 312 extending inward is provided on one side of the lock seat 31; the lock 32 is a sheet, and the middle part of the lock 32 is hinged to the lock hinge support 312; the elastic member 33 is provided on the upper side of the lock 32; in the locked state, the elastic member 33 pushes one side of the lock 32 to move downward, so that the lock 32 remains in an inclined state and thus locks the driving rod 4; specifically, the lock hinge support 312 is located on one side of the driving rod 4, and only one side of the lock 32 is connected to the lock hinge support 312 through a hinge;

[0095] The unlocking member 34 is a closed-loop metal wire passing through the lock seat 31, and one side of the unlocking member 34 is restricted to the lower side of the lock hinge support 312, and the other side is located at the lower side of the lock 32 away from the lock hinge support 312. Then, when the unlocking member 34 is pulled upward, the unlocking member 34 will pull the lock 32 and the elastic member 33 away from the lock hinge support 312 and move upward, so that the lock 32 tends to a horizontal state, thereby releasing the lock on the drive rod 4.

[0096] Example d.

[0097] Referring to Figures d1-d2, the lock seat 131 is a square frame with a through middle; the lock element includes two columns 321, the two columns 321 are respectively arranged on both sides of the driving rod 4, and the elastic element 33 is arranged on the upper side of the two columns 321; in the locked state, the elastic element 33 pushes the two columns 321 to move closer to each other, thereby clamping and locking the driving rod 4;

[0098] The unlocking member 34 is a closed-loop metal wire passing through the lock seat 31, and the two sides of the unlocking member 34 are respectively restricted at the lower sides of the two columns 321. Then, when the unlocking member 34 is pulled upward, the two columns 321 move upward and separate from each other at the same time, thereby releasing the lock on the driving rod 4.

[0099] Reference Fig.12 In the present invention, the inner clamp arm 21 has two sides of the middle clamping section provided with extensions 211 extending outward, and the outer contour of the extension 211 is arc-shaped and rounded. The extension 211 increases the area of ​​the valve leaflets clamped by the valve clamping device, thereby reducing regurgitation. The width dimension A of the extension 211 affects the leaflet clamping area. To ensure the beneficial effect of the extension 211, the width dimension A is preferably set to a range of 0.2 to 5 mm. The outer contour of the extension 32 is arc-shaped and rounded, which will not damage the valve.

[0100] A recyclable valve clamping system, comprising the recyclable valve clamping device and a conveying device, Fig.13 The conveying device includes a handle assembly 7 and a tube body assembly 6. The proximal end of the tube body assembly 6 is connected to the handle assembly 7, and the distal end is connected to the first connecting member 5. The handle assembly 7 can control the clamping and unfolding of the clamping sheet 1 and the clamping arm 2.

[0101] Further, in the present invention, referring to Fig.14 The tube assembly 6 includes a tube body 61, a fixed head 62, a second connecting member 63, a sliding rod 64 and a control rod 65. The fixed head 62 is fixedly connected to the distal end of the tube body 61, the second connecting member 63 is fixedly connected to the fixed head 62, and a corresponding buckling structure is provided between the second connecting member 63 and the first connecting member 5;

[0102] The distal end of the control rod 65 is connected to the sliding rod 64, and the sliding rod 64 is detachably connected to the proximal end of the driving rod; when the second connecting member 63 is buckled with the first connecting member 5, the control rod 65 can be driven to drive the sliding rod 64 to move, thereby driving the sliding rod 64 to connect with the driving rod 4, and when the sliding rod 64 is connected and fixed to the driving rod 4, the buckling structure is locked.

[0103] Specifically, as a preferred embodiment of the present invention, refer to Figure 14-15 , the second connecting member 63 is tubular, and the sliding rod 64 can freely extend and rotate through the inside of the second connecting member 63;

[0104] The slide bar 64 is threadedly connected to the driving rod 4. When the second connecting member 63 is buckled with the first connecting member 5, the slide bar 64 is driven to extend into the first connecting member 5. The slide bar 64 is then rotated to connect and fix the slide bar 64 to the driving rod 4, and the buckling structure is locked at the same time. The locking principle can be referred to Fig.15 It is understood that when the first connecting member 5 and the second connecting member 6 are buckled together, the two connecting members cannot move up and down relative to each other, but can only move left and right. Secondly, due to the restrictions of the internal sliding rod 64 and the driving rod 4, the left and right movement between the two connecting members is limited, thereby ensuring that the two connecting members are locked and cannot be separated.

[0105] In addition to the above-mentioned embodiments, there are other possible implementation modes for the connection and fixing structure of the first connecting member and the second connecting member of the present invention. Embodiment e and embodiment f are listed here for supplementary explanation. However, it should be noted that the protection scope of the present invention is not limited thereto, and implementation modes obtained by conventional transformation means all belong to the protection scope of the present invention.

[0106] Example e.

[0107] Referring to Figures e1-e3, the slide bar 64 is a hollow tube, the proximal end of the slide bar 64 extends into the tube body 61 and is connected to the control rod 65, the control rod 65 can drive the slide bar 64 to move up and down and rotate, and the distal end extends downward to cover the outer periphery of the second connecting member 63;

[0108] The side wall of the second connecting member 63 is provided with a protruding block 631 protruding outwards for connecting with the fixing head 62, and the middle of the slide rod 64 is provided with a slide groove 641 for allowing the protruding block 631 to pass through. The protruding block 631 passes through the slide groove 641 from the inside of the slide rod 64 and is connected and fixed with the fixing head 62;

[0109] The proximal end of the driving rod 4 is provided with a boss 42 protruding outward, and the distal end of the sliding rod 64 is provided with an L-shaped slot 642 allowing the boss 42 to slide in, and the width of the slot 641 is not less than the width of the L-shaped slot 642, thereby allowing the sliding rod 64 to rotate relative to the second connecting member 63; the first connecting member 5 and the second connecting member 63 are both provided with corresponding slideways 52 allowing the boss 42 to slide, and after the first connecting member 5 and the second connecting member 63 are buckled, the driving rod 4 can slide between the first connecting member 5 and the second connecting member 63; then, when the boss 42 is inserted into the L-shaped slot 642, the up and down movement of the sliding rod 64 will drive the up and down movement of the driving rod 4, and when the driving rod 4 moves up and down, the boss 42 will move up and down along the slideway 52;

[0110] After the first connecting member 5 and the second connecting member 63 are buckled together, the slide bar 64 is driven to move and rotate, so that the boss 42 can be clamped in the L-shaped slot 642, and the buckling structure can be locked at this time.

[0111] Example f.

[0112] Referring to Figures f1-f2, the buckle structure includes an elastic buckle hook 632 provided at the distal end of the second connecting member 63 and a buckle hole 53 provided at the proximal end of the first connecting member 5, the buckle hole 53 corresponds to the elastic buckle hook 32, and in a natural state, the elastic buckle hook 632 automatically contracts inwards and disengages from the buckle hole 53;

[0113] Then, when the first connecting member 5 and the second connecting member 63 are connected, the elastic hook 632 is inserted into the first connecting member 5, and then the slide bar 64 is driven to extend into the first connecting member 5 and connect with the driving rod 4. At this time, the slide bar 64 pushes the elastic hook 632 to rotate outward and engage with the buckle hole 53, thereby locking the buckling structure. When separation is required, the slide bar 64 can be separated from the driving rod 4 and then pulled upward to make the elastic hook 632 automatically retract inward to achieve separation.

[0114] In the conveying device of the present invention, referring to Fig.16The delivery device also includes two first wires 66, the proximal ends of the first wires 66 are connected to the handle assembly 7, and the distal ends extend from the distal ends of the tube assembly 6 after passing through the interior of the tube assembly 6 and connected to the clamping piece 1. Each of the first wires 66 is connected to one of the clamping pieces 1, so that the clamping piece 1 can be pulled to clamp and contract by pulling the first wires 66, and the clamping piece 1 can be freely expanded by loosening the first wires 66. In this way, when clamping the leaflets, the clamping arms 2 need to be expanded. Since the clamping piece 1 itself is elastic and will automatically expand, it is necessary to pull the clamping piece 1 through the first wires 66 to merge them, so as to ensure that the valve accommodating space 11 is closed, so that the leaflets can freely extend into the valve accommodating space 11.

[0115] In order to control the locking state of the locking assembly, the delivery device further includes a second string 67, the proximal end of which is connected to the handle assembly 7, and the distal end of which passes through the interior of the tube assembly 6 and then extends from the distal end of the tube assembly 6 and is connected to the locking assembly 3, so that the locking assembly 3 can be unlocked by pulling the second string 67, and the locking assembly 3 can be freely locked by loosening the second string 67. Specifically, the second string 67 is connected to the unlocking member 34 of the locking assembly 3, and the unlocking member 34 can be pulled to unlock by pulling the second string 67.

[0116] The first cord 66 and the second cord 67 need to have good flexibility, bending resistance, tensile strength, and wear resistance. To meet the above-mentioned properties of the cord, the cord can be a multi-strand stainless steel wire rope, an ultra-high molecular weight polyethylene braided rope, or a multi-strand nickel-titanium wire rope. Here, an ultra-high molecular weight polyethylene braided rope is preferred.

[0117] In the handle assembly of the present invention, referring to Figure 17-18 The handle assembly 7 includes a housing 71, a telescopic rod 72, a telescopic adjustment knob 73 and a rotation adjustment knob 74. The telescopic adjustment knob 73 is installed at the proximal end of the housing 71. The distal end of the telescopic rod 72 extends into the housing 71 and is slidably connected to the housing 71, and the proximal end of the telescopic rod 72 extends out of the housing 71 and passes through the telescopic adjustment knob 73. The telescopic rod 72 is threadedly connected to the telescopic adjustment knob 73. Therefore, the telescopic rod 72 can be pushed up and down by rotating the telescopic adjustment knob 73.

[0118] The rotation adjustment knob 74 is rotatably mounted on the proximal end of the telescopic rod 72. A sliding hole 721 is opened in the telescopic rod 72 to allow the proximal end of the control rod 65 to pass through. The proximal end of the control rod 65 passes through the sliding hole 721 and is connected to the rotation adjustment knob 74. Therefore, rotating the rotation adjustment knob 74 can drive the control rod 65 to rotate; rotating the telescopic adjustment knob 73 can drive the telescopic rod 72 to move telescopically, thereby driving the control rod 65 to move telescopically.

[0119] Furthermore, a locking pin 75 for locking the rotation adjustment knob 74 is provided on one side of the telescopic rod 72. When the locking pin 75 is screwed in to press the rotation adjustment knob 74 tightly, the rotation adjustment knob 74 cannot rotate, thereby preventing the rotation adjustment knob 74 from rotating freely. When the rotation adjustment knob 74 needs to be rotated, the locking pin 75 can be loosened to perform the operation.

[0120] A guide block 76 for limiting the control rod 65 is also provided in the housing 71 . A guide hole is provided inside the guide block to allow the control rod 65 to pass through, thereby ensuring stable movement and rotation of the control rod 65 .

[0121] Furthermore, the handle assembly 7 includes two first pull rods 77 , each of the first pull rods 77 is connected to one of the first wires 66 , and the first wires 66 can be pulled by pulling the first pull rods 77 .

[0122] Furthermore, the handle assembly 7 includes a second pull rod 78 , and the second pull rod 78 is connected to the second wire rope 67 . The second wire rope 67 can be pulled by pulling the second pull rod 78 .

[0123] The above is only a preferred embodiment of the present invention, and should not be used to limit the scope of the present invention. That is, any simple equivalent changes and modifications made according to the scope of the patent application and the content of the invention description of the present invention are still within the scope of the patent of the present invention.

Claims

1. A recyclable valve clamping device, comprising a clamping piece and a clamping arm, wherein a valve accommodating space is formed between the clamping piece and the clamping arm, characterized in that: It also includes a locking assembly, a first connecting member, a driving rod and a lower hinge support, wherein the distal end of the first connecting member is provided with an upper hinge support; The clamping arms include at least one group of outer clamping arms and one group of inner clamping arms, each group of the outer clamping arms includes two outer clamping arms that are symmetrically arranged on the left and right, and each group of the inner clamping arms includes two inner clamping arms that are symmetrically arranged on the left and right; the inner end of each inner clamping arm is rotatably connected to the upper hinge support, the inner end of each outer clamping arm is rotatably connected to the lower hinge support, the outer ends of the inner clamping arms and the outer clamping arms on the same side are rotatably connected, and the valve accommodating space is formed between the inner clamping arms and the clamping sheets; The driving rod passes through the first connecting member and the locking assembly and extends downward to be connected to the lower hinge support; thus, the clamping arms can be clamped or unfolded by driving the driving rod to move up and down, and when the clamping arms are at the maximum unfolding angle, the angle between the inner clamping arms and the outer clamping arms is not less than 90°, so that the inner clamping arms facing the clamping sheet will not form a reverse angle that hooks the tendon cord; The locking assembly is fixedly connected to the distal end of the first connecting member, and the locking assembly is used to lock the driving rod and thus limit the upward and downward movement of the driving rod; The inner clamp arm is connected to the upper hinge support via a first pin, the outer clamp arm is connected to the lower hinge support via a second pin, and the inner clamp arm and the outer clamp arm are connected via a third pin; Or, the inner clamp arm is a rigid structure, the outer clamp arm and the lower hinge support are integrally formed of elastic material, and the inner end of the inner clamp arm is connected to the upper hinge support via a first pin; Or, the inner clamp arm, the outer clamp arm and the lower hinge support are integrally formed of elastic material; The locking assembly comprises a lock seat, a lock member, an elastic member and an unlocking member, wherein the lock member and the elastic member are both arranged in the lock seat, the lock seat is fixedly connected to the first connecting member, and the driving rod passes through the lock seat, the lock member and the elastic member; The elastic member is used to push the locking member to keep it in a locked state, and the locking member clamps the driving rod in the locked state; The unlocking member is used to push the locking member and the elastic member to move to achieve unlocking. When unlocking, the elastic member is compressed, and the driving rod is released from the clamping of the locking member. Extension parts extending outward are arranged on both sides of the middle clamping section of the inner clamping arm, and the outer contour of the extension parts is an arc-shaped rounded corner.

2. A retrievable valve clamping device according to claim 1, characterized in that: The lock seat is in the shape of a square frame with a through middle, and a block protruding inward is provided on one side of the inner side wall of the lock seat; the lock element is in the shape of a sheet, and one side of the lock element is clamped on the upper side of the block; the elastic element is provided on the upper side of the lock element; in the locked state, the elastic element pushes the side of the lock element away from the block to move downward, so that the lock element remains in an inclined state and thus locks the driving rod; The unlocking member is a closed-loop metal wire passing through the lock seat, one side of the unlocking member is restricted to the lower side of the card block, and the other side is located at the lower side of the side of the lock member away from the card block. Then, when the unlocking member is pulled upward, the unlocking member will pull the lock member and the elastic member away from the side of the card block to move upward, so that the lock member tends to a horizontal state, thereby releasing the lock on the drive rod.

3. A retrievable valve clamping device according to claim 1, characterized in that: The lock seat is in the shape of a square frame with a through middle, and a lock hinge support extending inward is provided on one side of the lock seat; the lock is in the shape of a sheet, and the middle part of the lock is hinged to the lock hinge support; the elastic member is provided on the upper side of the lock; in the locked state, the elastic member pushes one side of the lock to move downward, so that the lock remains in an inclined state and thus locks the driving rod; The unlocking member is a closed-loop metal wire passing through the lock seat, one side of the unlocking member is restricted to the lower side of the lock hinge support, and the other side is located at the lower side of the lock member away from the lock hinge support. Then, when the unlocking member is pulled upward, the unlocking member will pull the lock member and the elastic member away from the side of the lock hinge support and move upward, so that the lock member tends to a horizontal state, thereby releasing the lock on the drive rod.

4. A retrievable valve clamping device according to claim 1, characterized in that: The lock seat is in the shape of a square frame with a through middle; the lock element comprises two columns, which are respectively arranged on both sides of the driving rod, and the elastic element is arranged on the upper sides of the two columns; in the locked state, the elastic element pushes the two columns to move closer to each other, thereby clamping and locking the driving rod; The unlocking member is a closed-loop metal wire passing through the lock seat, and the two sides of the unlocking member are respectively restricted at the lower sides of the two columnar bodies. Then, when the unlocking member is pulled upward, the two columnar bodies move upward and separate from each other at the same time, thereby releasing the lock on the driving rod.

5. A clipping system for a retrievable valve, characterized in that: A recyclable valve clamping device comprising any one of claims 1 to 4, and also comprising a conveying device, wherein the conveying device comprises a handle assembly and a tube body assembly, wherein the proximal end of the tube body assembly is connected to the handle assembly, and the distal end is connected to the first connecting member, and the clamping plate and the clamping arm can be controlled to clamp and unfold via the handle assembly.

6. A retrievable valve clipping system according to claim 5, characterized in that: The tube body assembly comprises a tube body, a fixed head, a second connecting piece, a sliding rod and a control rod, wherein the fixed head is fixedly connected to the distal end of the tube body, the second connecting piece is fixedly connected to the fixed head, and a corresponding buckling structure is provided between the second connecting piece and the first connecting piece; The distal end of the control rod is connected to the sliding rod, and the sliding rod is detachably connected to the proximal end of the driving rod; when the second connecting member is buckled with the first connecting member, the control rod can be driven to drive the sliding rod to move, thereby driving the sliding rod to connect with the driving rod, and when the sliding rod is connected and fixed with the driving rod, the buckling structure is locked.

7. A retrievable valve clipping system according to claim 6, characterized in that: The second connecting member is tubular, and the sliding rod can freely extend and rotate through the interior of the second connecting member; The slide bar is threadedly connected to the driving bar. When the second connecting member is buckled with the first connecting member, the slide bar is driven to extend into the first connecting member. The slide bar is then rotated to connect and fix the slide bar to the driving bar, and the buckling structure is locked at the same time.

8. The clipping system for a retrievable valve according to claim 6, characterized in that: The sliding rod is in a hollow tubular shape, the proximal end of the sliding rod extends into the tubular body and is connected to the control rod, and the distal end of the sliding rod extends downward and is sleeved on the outer periphery of the second connecting member; The side wall of the second connecting member is provided with a protruding block protruding outwards for connecting with the fixed head, the middle part of the slide rod is provided with a sliding groove allowing the protrusion to pass through, and the protrusion passes through the sliding groove from the inside of the slide rod to be connected and fixed with the fixed head; The proximal end of the driving rod is provided with a boss protruding outward, and the distal end of the sliding rod is provided with an L-shaped slot allowing the boss to slide in, and the width of the slot is not less than the width of the L-shaped slot, so as to allow the sliding rod to rotate relative to the second connecting member; the first connecting member and the second connecting member are both provided with corresponding slideways allowing the boss to slide, and after the first connecting member and the second connecting member are buckled, the driving rod can slide between the first connecting member and the second connecting member; After the first connecting member and the second connecting member are buckled together, the sliding rod is driven to move and rotate, so that the boss can be clamped in the L-shaped slot, and the buckling structure can be locked at this time.

9. The clipping system for a retrievable valve according to claim 6, characterized in that: The buckle structure comprises an elastic buckle hook provided at the distal end of the second connecting member and a buckle hole provided at the proximal end of the first connecting member, the buckle hole corresponds to the elastic buckle hook, and in a natural state, the elastic buckle hook automatically contracts inwards and disengages from the buckle hole; Then, when connecting the first connecting member and the second connecting member, the elastic hook is inserted into the first connecting member, and then the sliding rod is driven to extend into the first connecting member and connect with the driving rod. At this time, the sliding rod pushes the elastic hook to rotate outward and engage with the buckle hole, thereby locking the engaging structure.

10. The clipping system for a retrievable valve according to claim 5, characterized in that: The conveying device also includes two first wires, the proximal ends of which are connected to the handle assembly, and the distal ends of which pass through the interior of the tube body assembly and extend from the distal end of the tube body assembly and are connected to the clamping piece. Each of the first wires is connected to a clamping piece, so that the clamping piece can be clamped and contracted by pulling the first wire, and the clamping piece can be freely expanded by loosening the first wire.

11. The clipping system for a retrievable valve according to claim 5, characterized in that: The conveying device also includes a second wire rope, the proximal end of which is connected to the handle assembly, and the distal end of which passes through the interior of the tube body assembly and extends out from the distal end of the tube body assembly and is connected to the locking assembly, so that the locking assembly can be unlocked by pulling the second wire rope, and the locking assembly can be freely locked by loosening the second wire rope.

12. The clipping system for a retrievable valve according to claim 6, characterized in that: The handle assembly comprises a shell, a telescopic rod, a telescopic adjustment knob and a rotary adjustment knob, wherein the telescopic adjustment knob is rotatably mounted on the proximal end of the shell, the distal end of the telescopic rod extends into the shell and is slidably connected to the shell, and the proximal end thereof extends out of the shell and passes through the telescopic adjustment knob, and the telescopic rod is threadedly connected to the telescopic adjustment knob; The rotation adjustment knob is rotatably mounted on the proximal end of the telescopic rod. A sliding hole is provided in the telescopic rod to allow the proximal end of the control rod to pass through. The proximal end of the control rod passes through the sliding hole and is connected to the rotation adjustment knob. Thus, rotating the rotation adjustment knob can drive the control rod to rotate; rotating the telescopic adjustment knob can drive the telescopic movement of the telescopic rod, thereby driving the telescopic movement of the control rod.

13. The clipping system for a retrievable valve according to claim 10, characterized in that: The handle assembly includes two first pull rods, each of which is connected to one of the first wires. The first wires can be pulled by pulling the first pull rods.

14. The clipping system for a retrievable valve according to claim 11, characterized in that: The handle assembly includes a second pull rod, and the second pull rod is connected to the second wire rope. The second wire rope can be pulled by pulling the second pull rod.

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