Medical assembly applied to automatic operation and medical device with automatic operation

By designing medical components that are automated, including the handle body, the first catheter, the first connector and the first slide, the problem of the existing medical equipment being difficult to achieve rapid and efficient automated operation in manual operation is solved, and the precise operation of the outer sheath tube and ablation electrode is achieved, reducing the surgical duration and personnel costs.

CN119818171AActive Publication Date: 2025-04-15SHANGHAI SHUNENG MEDICAL TECH CO LTD
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Patent Information

Application Number
CN202510160709.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-13
Publication Date
2025-04-15
Estimated Expiration
2045-02-13

AI Technical Summary

Technical Problem

It is difficult to achieve rapid and efficient automated operation in manual operation of existing medical equipment, especially in the use of endoscopy and channel devices, where consumables cannot be accurately positioned or released accurately, which increases the length and complexity of the operation, and requires multiple people to operate, increasing personnel costs and the risk of operation errors.

Method used

An automated operation medical component is designed, including a handle body, a first catheter, a first connector, a first slider and an outer sheath tube. Through the coordinated work of these components, the precise release and positioning of the outer sheath tube and the precise delivery of the ablation electrode are achieved, reducing the number of surgical personnel and the difficulty of operation.

Benefits of technology

Accurate operation of the outer sheath tube and ablation electrode is achieved, reducing the duration and complexity of the operation, reducing personnel costs, and reducing the risk of operational errors.

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Abstract

The invention belongs to the technical field of medical instrument ablation, and particularly relates to a consumable handle applied to automatic operation and an automatic-operation medical device, and the consumable handle applied to automatic operation comprises a handle body; the first catheter is connected to one end of the handle body, the first connecting piece can be detachably connected with an external instrument, and the first connecting piece is arranged at the other end of the first catheter; the first sliding block is movably arranged in the first connecting piece; the second sliding block is movably arranged in the first connecting piece, and the first sliding block and the second sliding block can synchronously and linearly move or only the second sliding block linearly moves; the outer sheath tube is movably arranged on the handle body, and one end of the outer sheath tube is connected with the first sliding block; the control wire is movably arranged in the outer sheath tube in a penetrating mode, and one end of the control wire can stretch out of the outer sheath tube to be connected with the second sliding block. By the adoption of the structure, conveying of the outer sheath tube, conveying of the ablation electrode and automatic operation of expansion and contraction can be achieved, operation is convenient, and ablation efficiency is improved.
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Description

Technical Field

[0001] The present invention belongs to the technical field of medical instruments, and in particular to a medical component for automated operation and a medical device for automated operation. Background Art

[0002] Prior art A variety of energy delivery methods have been employed in medical treatments, including radiofrequency, microwaves, high-intensity focused ultrasound (HIFU), and pulsed electric fields (PEF).

[0003] Most existing structures use methods such as turning a wheel with one hand, pushing a slider with one hand, and pushing or pulling back with both hands. The currently commonly used manual control of the consumables to move forward and backward, open and retract cannot be used quickly and efficiently with endoscopes, various channels, and other new devices (such as robots). When using endoscopes and channels, they cannot be accurately positioned or released. When operating a supporting robot, it is necessary to repeatedly operate the consumables at the operating dashboard and the robot channel. The release and recovery actions of the consumables are repeated many times each time the surgery is performed. The inability to accurately position or release, and repeated operations at the dashboard and the robot channel increase the duration and complexity of the operation. Using two people to operate at the same time increases personnel costs, and may result in damage to the patient's cavity due to failure to recycle during movement, or other usage errors. Summary of the invention

[0004] The present invention provides a medical component for automated operation, which solves the technical problems in the above technical background, can realize the accurate release and positioning of the outer sheath and the accurate delivery of the ablation electrode to the target position, without repeated operations, reducing the number of surgical personnel and the difficulty of surgical operation. Another aspect of the present invention also provides an automated medical device.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] A medical component for automated operation, comprising:

[0007] The handle body has a first cavity;

[0008] A first conduit having a first passage extending therethrough, one end of the first conduit being connected to one end of the handle body;

[0009] a first connector, which can be detachably connected to an external device, and is disposed at the other end of the first conduit, and is provided with a first sliding cavity, and the first channel connects the first sliding cavity and the first cavity;

[0010] A first sliding block is movably disposed in a first sliding cavity of the first connecting member, and the first sliding block can perform reciprocating linear movement in the first sliding cavity;

[0011] An outer sheath tube is arranged at the other end of the handle body, the outer sheath tube can move relative to the handle body, and the first slider can drive the outer sheath tube to move relative to the handle body;

[0012] The ablation electrode is arranged at the distal end of the outer sheath tube, and the ablation electrode can be configured with ablation energy.

[0013] In some embodiments, a first pull tube is provided between the first slider and the outer sheath tube. The first pull tube is movably inserted into the first channel and sleeved on the control wire. One end of the first pull tube is connected to the first slider, and the other end of the first pull tube passes through the first catheter and is connected to one end of the outer sheath tube.

[0014] In some embodiments, it also includes a first bridge tube, a second bridge tube and a third bridge tube arranged in the handle body, wherein the first bridge tube is connected to the outer sheath tube, the third bridge tube is connected to the first pull tube, both ends of the second bridge tube are respectively connected to the first bridge tube and the third bridge tube, the second bridge tube is slidably arranged in the handle body, and the first bridge tube, the second bridge tube and the third bridge tube are coaxially arranged.

[0015] In some embodiments, the first catheter is provided with a third channel, and the third channel is independent of the first channel. A first wire is provided in the third channel, one end of the first wire passes through the first connector to form a first plug, and the other end of the first wire passes through the second cavity of the handle body, passes into the second channel of the outer sheath tube and extends to the distal end of the outer sheath tube.

[0016] In some embodiments, a first conductive plate of a preset length is disposed in the handle body, the first conductive plate is distributed along the axis direction of the outer sheath tube, and a conductive spring is disposed on the second bridge tube, the conductive spring abuts against the first conductive plate;

[0017] The first wire is divided into two sections, including a first section located in the third channel and a second section located in the second channel. One end of the first section of the first wire is connected to the first conductive plate, and one end of the second section of the first wire passes through the outer sheath and is connected to the conductive spring.

[0018] In some embodiments, it further comprises a second slider capable of reciprocating linear movement in the first sliding cavity and a control wire movably arranged in the outer sheath tube and the first pull tube, wherein one end of the control wire passes through the first pull tube and is connected to the second slider;

[0019] The ablation electrode is a basket weaving structure, having a first end and a second end. The first end of the ablation electrode is connected to one end of the control wire, the second end of the ablation electrode is connected to one end of the outer sheath tube, and the ablation electrode is connected to one end of the second segment of the first wire.

[0020] In some embodiments, a plurality of third support plates are provided in the handle body, and grooves matching the shape of the second bridging tube are provided on the plurality of support plates, and the second bridging tube reciprocates on the plurality of third support plates, wherein the outer diameter of the second bridging tube is larger than the outer diameters of the first bridging tube and the third bridging tube, the outer diameter of the third bridging tube is larger than the outer diameter of the first pulling tube, and the outer diameter of the first bridging tube is larger than the outer diameter of the outer sheath tube.

[0021] In some embodiments, a first connection hole is provided on the first sliding block, and a second connection hole is provided on the second sliding block, and the first connection hole may correspond to the second connection hole in position.

[0022] In some embodiments, a first limiting structure is provided between the first slider and / or the second slider and the first connecting member, and the first limiting structure is used for the first connecting member to drive the first slider and the second slider to rotate synchronously.

[0023] In some embodiments, the first limiting structure includes a first limiting boss provided on the first slider and / or a first limiting boss provided on the second slider, and a first limiting groove provided on the first sliding cavity of the first connecting member; or

[0024] A first limiting groove provided on the first sliding block and / or a first limiting groove provided on the second sliding block, and a first limiting boss provided on the first sliding cavity of the first connecting member;

[0025] The first limiting boss is adapted to the first limiting groove and the two are mutually clamped, and the first limiting boss and the first limiting groove are both distributed along the axial direction of the first connecting member.

[0026] In some embodiments, a first engaging portion is provided between the first slider and the second slider, the first connecting hole and the second connecting hole are both provided in the first engaging portion, and the second slider can rotate synchronously with the first slider through the engaging portion.

[0027] In some embodiments, the present invention further provides an automated medical device, including: a consumable handle for automated operation as described in each of the above embodiments;

[0028] A control handle having a second cavity;

[0029] A first driving slider is movably disposed in the second cavity of the control handle, the first driving slider can make reciprocating linear movements, and the first driving slider is provided with a first connecting portion; a second engaging portion is provided between the second slider and the first connecting portion, and the second engaging portion is used for detachable connection between the second slider and the first connecting portion, so that the second slider is separated from the first connecting portion or the second slider moves synchronously with the first driving slider;

[0030] A first support tube is arranged on the control handle, and the first connecting member is detachably arranged on the first support tube;

[0031] The first connecting slider is movably arranged in the second cavity. The first connecting slider can make reciprocating linear movements in the second cavity. The first connecting slider is provided with a retractable first pin. The first pin can be inserted only into the first connecting hole or simultaneously into the first connecting hole and the second connecting hole.

[0032] In some embodiments, it also includes a first support plate, a second support plate, a first motor, a first screw rod, and a first guide shaft. The first support plate and the second support plate are spaced apart in the second cavity, the first motor is disposed on the second support plate, two ends of the first screw rod are rotatably disposed on the first support plate and the second support plate, and the first screw rod is connected to the output end of the first motor, two ends of the first guide shaft are respectively disposed on the first support plate and the second support plate, and the first guide shaft is arranged parallel to the first screw rod, and the first driving slider is sleeved on the first screw rod and the first guide shaft.

[0033] In some embodiments, it also includes a second guide shaft arranged in the second cavity, the first connecting slider is passed through the second guide shaft, the second guide shaft and the first guide shaft are parallel to each other, and a first limiting groove adapted to the first connecting slider is arranged on the first support plate, and the first connecting slider abuts against the inner wall of the first limiting groove.

[0034] In some embodiments, a first threaded hole is provided on the first connecting slider, at least one first rubber ring is provided in the first threaded hole, a first threaded column is further provided on the first threaded hole, the first threaded column can squeeze the first rubber ring, and the first threaded column and the first rubber ring are passed through the second guide shaft.

[0035] In some embodiments, it also includes a second pin arranged on the first driving slider and a third connecting hole arranged on the first connecting slider, or a third connecting hole arranged on the first driving slider and a second pin arranged on the first connecting slider, the second pin is adapted to the three connecting holes, and the second pin can be plugged into or detached from the third connecting hole.

[0036] In some embodiments, one end of the first support tube is fixed to the first support plate, and the other end of the first support tube is connected to the control handle;

[0037] The first supporting tube is provided with a through first cylindrical channel, the first cylindrical channel is adapted to the shape of the first connecting member, the first supporting tube is provided with a first slot and a second slot, the first connecting member is provided with a first boss, the first slot and the second slot are connected, the width of the first slot is adapted to the width of the first boss, the width of the two slots is adapted to the length of the first boss, and the second slot is provided with a preset length.

[0038] In some embodiments, the first support tube is provided with a first give way groove distributed along its own axial direction, the first connecting member is provided with a second give way groove, the first connecting hole and the second connecting hole correspond to the position of the second give way groove, the first give way groove corresponds to the position of the first pin, and when the first boss enters the second slot through the first slot and rotates in the second slot, the first give way groove may correspond to the position of the second give way groove.

[0039] In some embodiments, the second engaging portion includes a second boss disposed on the second slider and a third notch and a fourth notch disposed on the first connecting portion, the third notch and the fourth notch are connected, the third notch is adapted to the shape of the second boss, and the fourth notch is provided with a preset length;

[0040] The second boss includes a rotating part and a limiting part, the third slot includes a rotating groove and a limiting groove, the thickness of the limiting part of the second boss is adapted to the width of the fourth slot, wherein the angle of rotation of the second boss in the fourth slot is consistent with the angle of rotation of the first boss in the second slot.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] The present invention arranges a first connecting member and a handle body, the handle body and the first connecting member are fixedly connected via a first conduit, a first sliding cavity is arranged in the first connecting member, a first slider and a second slider capable of reciprocating linear movement are arranged in the first sliding cavity, wherein the second slider can move alone or the first slider and the second slider can move synchronously, and through the synchronous movement of the first slider and the second slider, the transportation of an outer sheath tube movably arranged on the handle body is realized, and the transportation of consumables is realized, and by only moving the second slider, the movement of the control wire relative to the outer sheath tube can be realized, and the opening or contraction of the consumables can be realized.

[0043] Combined with the control handle arranged at one end of the first catheter, a first driving slider and a first connecting slider are arranged in the control handle, the first driving slider is connected to the second slider, and the first connecting slider can be connected to the first slider and the second slider, thereby realizing the controlled connection between the first slider and the second slider, and further realizing the automatic control of the outer sheath and the control wire.

[0044] Additional aspects and advantages of the present application will be partially given in the following description, which will become apparent from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a schematic diagram of the three-dimensional structure of the consumable handle applied to automated operation of the present invention;

[0046] Figure 2 It is a schematic diagram of the internal structure of the control handle of the present invention;

[0047] Figure 3 A schematic diagram of the first sliding block and the second sliding block of the present invention being assembled in the first connecting member;

[0048] Figure 4 for Figure 3 Exploded view in ;

[0049] Figure 5 for Figure 4 A schematic diagram of the structure of the other side of the first slider and the second slider;

[0050] Figure 6 It is a first structural schematic diagram of a first driving slider of the present invention;

[0051] Figure 7 It is a second structural schematic diagram of the first driving slider of the present invention;

[0052] Figure 8 is a schematic diagram of a first connection block of the present invention;

[0053] Fig. 9 is a cross-sectional view of the locking structure on the first connecting slider;

[0054] Fig.10 is a first schematic diagram of a first support cylinder of the present invention;

[0055] Fig.11 is a second schematic diagram of the first support tube of the present invention;

[0056] Fig.12 The schematic diagram of the internal structure of the control handle of the present invention without the first driving slider and the first connecting slider;

[0057] Fig.13 It is a schematic diagram of the internal structure of the control handle of the present invention;

[0058] Fig.14 A three-dimensional schematic diagram of an automatically operated medical device of the present invention;

[0059] Fig.15 for Fig.14 Enlarged view of point A in the middle;

[0060] Fig.16 It is a schematic diagram of the internal structure of the handle body of the present invention;

[0061] Fig.17 for Fig.16 Enlarged view of point B in the middle;

[0062] Fig.18 It is a partial structural cross-sectional view of the handle body of the present invention;

[0063] Fig.19 It is an enlarged view of the operating interface of the control handle of the present invention;

[0064] Fig. 20 A schematic diagram of a second embodiment of the present invention in which the first driving slider and the second slider are connected;

[0065] Fig.21 for Fig. 20 Exploded view in ;

[0066] Fig. 22 It is a cross-sectional view of the connection between the first driving slider and the second slider of the present invention. DETAILED DESCRIPTION

[0067] The present application is further described in detail below in conjunction with specific drawings. In the description of this embodiment, unless otherwise specified, the terms "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the present application must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application.

[0068] In one embodiment, Figure 1 , Fig.14and Fig.16 As shown, the present invention provides an automated medical device, which mainly includes:

[0069] The handle body 300 has a first cavity, and a first connector 308 is disposed at one end of the handle body 300, and the first connector 308 is connected to a matching instrument, such as an endoscope or a robot channel;

[0070] The first connecting member 108 can be detachably connected to the external control device. In this embodiment, the first connecting member 108 is detachably arranged on the control handle 100, and a first sliding cavity 1081 is provided on the first connecting member 108. In this embodiment, the matching part of the first connecting member 108 and the control handle 100 is a cylindrical structure, which can be plugged and connected to the control handle 100, and the first connecting member 108 can rotate relative to the control handle 100.

[0071] The first slider 109 is movably disposed in the first slide cavity 1081 of the first connecting member 108, and performs reciprocating linear movement in the first slide cavity 1081. The first slider 109 is provided with a first connecting hole 1091, which is used to drive the first slider 109 to perform linear movement. In this embodiment, the first slider 109 only performs reciprocating linear movement relative to the length direction of the first slide cavity 1081, and the first slider 109 is adapted to the first slide cavity 1081 in appearance;

[0072] The first conduit 200 is connected to the handle body 300 at one end and to the first connector 108 at the other end. A first channel 201 is provided on the first conduit 200. The first channel 201 connects the first cavity of the handle body 300 and the first sliding cavity 1081 of the first connector 108. Furthermore, a PTFE lining 203 is provided in the first channel 201. Fig.17 As shown, the friction resistance between the first pull tube 306 and the first guide tube 200 is reduced.

[0073] The outer sheath tube 400 has a second passage passing through both ends thereof, and the outer sheath tube 400 is movably disposed at one end of the first connector 308 of the handle body 300, and one end of the outer sheath tube 400 extends into the first cavity of the handle body 300, and the outer sheath tube 400 can reciprocate along its own axis relative to the handle body 300;

[0074] The ablation electrode is arranged at the distal end of the outer sheath tube. The ablation electrode can be electrically connected to an external energy generator and is configured with ablation energy for ablation. In this embodiment, the ablation electrode is a columnar structure, and its outer diameter and the outer diameter of the outer sheath tube can be provided with a tip for puncturing the lesion tissue. In this embodiment, by providing a first connecting piece, the entire medical assembly can be detachably connected to the external control structure, thereby realizing the reciprocating linear movement of the first slider, and then driving the outer sheath tube to move relative to the handle body through the first pull tube, thereby realizing the precise delivery of the position of the ablation electrode.

[0075] In one embodiment, it also includes a first pull tube 306, which is movably arranged in the first channel 201 of the first catheter 200 and movably sleeved on the control wire 1104. One end of the first pull tube 306 is connected to the outer sheath tube 400, and the other end of the first pull tube 306 is connected to the first slider 109. The movement of the first slider 109 drives the outer sheath tube 400 to move relative to the handle body 300.

[0076] In one embodiment, the first catheter 306 is provided with a third channel 202 connecting the first sliding cavity 1081 and the first cavity, the third channel 202 and the first channel 201 are independent of each other, a first wire 307 is provided in the third channel 202, one end of the first wire 307 is electrically connected to the ablation electrode 500 through the second channel, and the other end of the first wire 307 extends out of the first connector 108 and forms a first plug 3071. The first wire 307 is used to transmit external energy to the ablation electrode 500.

[0077] Furthermore, since the outer sheath 400 will move relative to the handle body 300, in order to avoid pulling on the first wire 307 during movement, or the first wire 307 has excess length inside the handle body 300, the first wire 307 is divided into two sections, the first wire 307 located in the second channel is the second section, and the first wire 307 located in the third channel 201 is the first section, and an electrical sliding connection is performed inside the handle body.

[0078] Specifically, a first bridge tube 304, a second bridge tube 303 and a third bridge tube 305 are arranged inside the handle body 300, wherein the first bridge tube 304 is connected to the outer sheath tube 400, the third bridge tube 305 is connected to the first pull tube 306, and both ends of the second bridge tube 303 are respectively connected to the first bridge tube 304 and the third bridge tube 305, the second bridge tube 303 slides in the handle body 100, and a plurality of third support plates 301 are arranged inside the handle body 100, and an adaptive groove is arranged on the third support plate 301, and the second bridge tube 303 can Reciprocating linear sliding is performed on the grooves of multiple third support plates 301. The second bridge tube 303 is a rigid structure. The outer diameter of the second bridge tube 303 is relatively large, thereby ensuring the stability of its sliding structure. The outer diameter of the second bridge tube 303 is greater than the outer diameters of the first bridge tube 304 and the third bridge tube 305. The outer diameter of the third bridge tube 305 is greater than the outer diameter of the first pull tube 306. The outer diameter of the first bridge tube 304 is greater than the outer diameter of the outer sheath tube 400. Since the outer diameters of the outer sheath tube 400 and the first pull tube 306 are relatively small, this type of structure is designed for transition, while ensuring the sliding stability of the second bridge tube 303.

[0079] It should be particularly noted that the first bridge tube 304, the second bridge tube 303 and the third bridge tube 305 are coaxially arranged. Further, a conductive spring 3031 is arranged on the second bridge tube 303, and the conductive spring 3031 is made of a metal conductive material. A first conductive plate 302 of a certain length is arranged inside the handle body 300, and a first wire 307 located in the third channel 202 is fixedly connected to the first conductive plate 302, and the first wire 307 located in the second channel is connected to the conductive spring 3031. The conductive spring 3031 is in sliding contact with the first conductive plate 302, and when the conductive spring 3031 is in contact with the first conductive plate 302, it is in a compressed state, thereby ensuring the stability of the electrical connection between the conductive spring 3031 and the first conductive plate 302.

[0080] Optionally, the first wire 307 may also be embedded in the outer sheath 400 or a separate channel may be provided for the first wire 307 to pass through.

[0081] In one embodiment, it further includes a second slider 110, which is movably disposed in the first sliding cavity 1081 of the first connecting member 108, wherein the second slider 110 can be detachably connected to the first connecting portion 1031 of the first driving slider 103, and a second connecting hole 1103 is provided at one end of the second slider 110 close to the first slider 109, and the second connecting hole 1103 can correspond to the position of the first connecting hole 1093, and the first connecting hole 1093 is located outside the second connecting hole 1103;

[0082] Further, it also includes a control wire 1104, such as Fig.18As shown, the control wire 1104 is movably arranged in the second channel of the outer sheath tube 400, one end of the control wire 1104 is connected to the first end of the ablation electrode 500, and the other end of the control wire 1104 passes through the second channel, the handle body 300, the first channel 201 and the first slider 109, and is connected to the second slider 110. In this embodiment, a through-hole 1092 is provided on the first slider 109, so that the control wire 1104 passes through the first slider 109 and is connected to the second slider 110;

[0083] In one embodiment, an ablation electrode 500 is disposed at one end of the outer sheath away from the handle body 300. Fig.15 As shown, the ablation electrode 500 has a first end and a second end, and can be configured with ablation energy, such as pulse energy; the ablation electrode 500 is an expandable structure, the second end of the ablation electrode 500 is connected to one end of the outer sheath 400, and the first end of the ablation electrode 500 is connected to one end of the control wire 1104. By moving the control wire 1104 relative to the outer sheath 400, the first end and the second end of the ablation electrode 500 are driven to move closer to achieve expansion of the ablation electrode 500. In this embodiment, the ablation electrode 500 is a basket woven structure, and its appearance can be cylindrical, spindle-shaped, balloon-shaped or other structures.

[0084] Optionally, the ablation electrode 500 may be a columnar structure, which is directly connected to one end of the control wire 1104 , and the ablation electrode 500 is retracted into or extended out of the outer sheath tube 500 by the movement of the control wire 1104 .

[0085] In one embodiment, in order to ensure that the first slider 109 and the second slider 110 only make reciprocating linear movements relative to the first connecting member 108, a first limiting structure is provided between the first slider 109 and the first connecting member 108, or a first limiting structure is provided between the second slider 110 and the first connecting member 108, or a first limiting structure is provided between the first slider 109 and the second slider 110 and the first connecting member 108. In this embodiment, the first slider 109 and the second slider 110 are engaged and can rotate synchronously, so a first limiting structure is provided between the first slider 109 and the first connecting member 108.

[0086] Furthermore, if Figure 3 and Figure 4 As shown, the first limiting structure includes a first limiting boss 1091 arranged on the first slider 109 and a first limiting groove 1082 arranged on the first connecting member 108, wherein the first limiting groove 1082 is distributed along the axial direction of the first connecting member 108, and the first limiting boss 1091 is clamped in the first limiting groove 1082.

[0087] Optionally, the first limiting boss 1091 may be disposed on the inner wall of the first connecting member 108 , and a correspondingly adapted first limiting groove 1082 may be disposed on the first sliding block 109 .

[0088] Optionally, the first limiting boss 1091 and the first limiting groove 1082 may be arranged only between the second slider 110 and the first connecting member 108 ; or the first limiting boss 1091 and the first limiting groove 1082 may be arranged simultaneously between the first connecting member 108 and the first slider 109 and the second slider 110 .

[0089] Furthermore, in order to ensure that the first slider 109 and the second slider 110 can rotate synchronously and the positions of the first connection hole 1093 and the second connection hole 1103 can correspond, a first fitting portion is provided between the first slider 109 and the second slider 110. Specifically, a first fitting boss 1094 is provided on the first slider 109, a second fitting boss 1104 is provided on the second slider 110, the first connection hole 1093 is provided on the first fitting boss 1094, and the second connection hole 1103 is provided on the second fitting boss 1104. The first interlocking boss 1094 can abut against the second interlocking boss 1104 to avoid relative rotation between the first slider 109 and the second slider 110. When the first interlocking boss 1094 and the second interlocking boss 1104 are fully abutted, the positions of the first connecting hole 1093 and the second connecting hole 1103 are aligned, and the central axes of the two coincide, thereby facilitating the first pin 1061 to be inserted into the first connecting hole 1093 and the second connecting hole 1103.

[0090] Optionally, the contact surfaces between the first slider 109, the second slider 110 and the first connecting member 108 may be set to be non-rotating irregular shapes, for example, the contact cross-section therebetween may be a triangle, a quadrilateral or an ellipse.

[0091] In one embodiment, Figure 2 - Figure 5 As shown, an automated medical device provided by the present invention mainly includes a control handle 100, a first driving slider 103, a first connecting slider 106, a first supporting cylinder 107 and the consumable handles for automated operation in the above-mentioned embodiments.

[0092] Specifically, the control handle 100 is provided with a second cavity. In this embodiment, the control handle 100 includes two shells spliced ​​to each other, which facilitates the assembly of its internal components;

[0093] The first driving slider 103 is movably disposed in the second cavity of the control handle 100, and the first driving slider 103 performs reciprocating linear movement in the second cavity. Figure 6As shown, a first connecting portion 1031 is provided on the first driving slider 103; in this embodiment, the first driving slider 103 can be moved by an electric or hydraulic driving force.

[0094] The first connecting slider 106 is movably disposed in the second cavity, wherein the first connecting slider 106 can make a reciprocating linear movement in the second cavity, and the moving direction is consistent with the moving direction of the second slider 110. A retractable first latch 1061 is disposed on the first connecting slider 106. Figure 8 As shown, when the first latch 1061 is only inserted into the first connecting hole 1093, the position of the first slider 109 can be fixed or moved relative to the first slider 109. When the first latch 1061 is simultaneously inserted into the first connecting hole 1093 and the second connecting hole 1103, the first slider 109 and the second slider 110 can move synchronously or be fixed synchronously. When the first latch 1061 is not inserted into the first connecting hole 1093 and the second connecting hole 1103, the first connecting member 108 can be rotated and adjusted relative to the control handle 100.

[0095] In order to facilitate the detachable connection between the first connecting member 108 and the control handle 100, a first support tube 107 is provided on the control handle 100, one end of the first support tube 107 is fixed to the first support plate 1001, and the other end of the first support tube 107 is fixed to the housing of the control handle 100;

[0096] Specifically, Fig.10 and Fig.11 As shown, the first support cylinder 107 is provided with a through first cylindrical channel, and the first cylindrical channel is adapted to the shape of the first connecting member 108, so that the first connecting member 108 can rotate relative to the first support cylinder 107 and reciprocate along its axis. A first notch 1072 and a second notch 1073 are provided on the first support cylinder 107, and a first boss 1083 is provided on the first connecting member 108, wherein the first notch 1072 and the second notch 1073 are communicated, the first notch 1072 is distributed along the axis direction of the first support cylinder 107, the second notch 1073 is arranged on the side wall of the first support cylinder 107 and is a through structure, and the first notch 1072 The width is consistent with the width of the first boss 1083, so that the first boss 1083 can enter the second slot 1073 through the first slot 1072, the width of the second slot 1073 is adapted to the length of the first boss 1083, and the second slot 1073 has a preset length, so that after the first boss 1083 enters the second slot 1073, the first connecting member 108 is rotated to make the first boss 1083 and the first slot 1072 misaligned, thereby axially limiting and fixing the first boss 1083, so that the first boss 1083 is clamped in the second slot 1073, and the relative position of the first connecting member 108 and the first support cylinder 107 is fixed.

[0097] Furthermore, the first support tube 107 is provided with a first clearance groove 1071 distributed along the axis direction thereof, and the first connecting member 108 is provided with a second clearance groove 1081 distributed along the axis direction thereof, and the first connecting hole 1093 and the second connecting hole 1103 both correspond to the positions of the second clearance groove 1081, and the first clearance groove 1071 corresponds to the position of the first latch 1061. When the first boss 1083 rotates to the limit position in the second notch 1073, the first clearance groove 1071 and the second clearance groove 1083 correspond to each other, and at this time, the first latch 1061 can be plugged into the first connecting hole 1093 and the second connecting hole 1103. The limit position in this embodiment is that the first boss 1083 abuts against each other in the radial direction of the first support tube 107 and cannot rotate.

[0098] In one embodiment, in order to achieve a detachable connection between the second slider 110 and the first connecting portion 1031 of the first driving slider 103, a second interlocking portion is provided between the second slider 110 and the first connecting portion 1031, wherein the second interlocking portion is used for the second slider 110 and the first driving slider 103 to perform synchronous reciprocating linear movement.

[0099] Specifically, the second engaging portion includes a second boss disposed on the second slider 110 and a third notch and a fourth notch 1034 disposed on the first connecting portion 1031, the third notch and the fourth notch 1034 are connected, the third notch is adapted to the shape of the second boss, so that the second boss passes through the third notch and then enters the fourth notch 1034, and the fourth notch 1034 is provided with a preset length in the radial direction of the first connecting portion 1031 of the cylindrical structure;

[0100] The second boss includes a rotating portion 1101 and a limiting portion 1102, and the third notch includes a rotating groove 1032 and a limiting groove 1033. The rotating portion 1101 of the second boss corresponds to the rotating groove 1032 of the third notch, and the limiting portion 1102 of the second boss corresponds to the limiting groove 1032 of the third notch. The thickness of the limiting portion 1102 of the second boss matches the width of the fourth notch 1034, thereby ensuring that the second boss is clamped in the fourth notch 1034, thereby achieving axial limitation between the two. At the same time, the second boss does not protrude from the outer wall of the first connecting portion 1031, which facilitates the rotation of the second slider 110 and avoids motion interference. It should be particularly pointed out that the angle of the second boss rotating in the fourth notch 1034 is consistent with the angle of the first boss 1083 rotating in the second notch 1073, thereby ensuring that the first boss 1083 and the second boss are both synchronously rotated to the limit position. The limit position is as mentioned above and will not be described in detail here.

[0101] In one embodiment, the detachable connection between the first driving slider 103 and the second slider 110 can also be in the form of a buckle, such as Figure 20-22 As shown, a first buckle 503 and a first connection channel 10311 are provided on the first connection portion 1031 of the first driving slider 103. In the initial state, the first buckle 503 is located in the first connection channel 10311. When subjected to an external force, the first buckle 503 can exit the first connection channel 10311. In this embodiment, the first buckle 503 exits the first connection channel 10311 by rotating. A first slot 1105 adapted to the first buckle 503 is provided on the second slider 110. The first buckle 503 can be engaged in the first slot 1105, so that the first driving slider 103 drives the second slider 110 to move.

[0102] Furthermore, the first clip 503 includes a first clip section 5032 and a first control section 5031, and the first clip 503 is rotatably disposed on the side wall of the first connecting portion 1031 through a first rotating shaft 50322, wherein the thickness of the first clip section 5032 is adapted to the width of the first slot 1105, thereby maintaining a limit in the axial movement direction of the second slider 110, so that the first driving slider 103 and the second slider 110 move synchronously. A first return spring 5033 is provided on the first control section 5031. On the one hand, the first return spring 5033 is used for resetting the first clip 503 so that the first clip 503 is located in the first connecting channel 10311. On the other hand, when the first clip section 5032 is squeezed by an external force, the first clip 503 rotates, so that the second plug-in section 3022 of the second slider 110 is plugged into the first connecting channel 10311. At the same time, when the first slot 1105 corresponds to the position of the first clip section 5032, under the action of the first return spring 5033, the first clip section 5032 is clipped into the first slot 1105, thereby realizing the fixation of the second slider 110 relative to the first driving slider 103. In this embodiment, one end of the first return spring 5033 is fixed at the distal end of the first control section 5031, and the other end of the first return spring 5033 is fixed to the first connecting portion 1031. At the same time, the first return spring 5033 is in a stretched state, applying a pulling force to the first control section 5031 in the direction of the first connecting portion 1031, so that the first clamping section 5032 is located in the first connecting channel 10311.

[0103] In one embodiment, the control handle 100 is provided with a first button 504, one end of the first button 504 is in contact with the first control section 5031, and the first button 504 can drive the first buckle 503 to rotate; the first button 504 is sleeved with a first limit spring 5041, one end of the first limit spring 5041 is connected to the housing of the control handle 100, and the other end of the first limit spring 5041 is connected to the first button 504. In this embodiment, an annular boss is provided on the first button 504, and the first button 504 can be movably provided on the housing of the control handle 100 through the first limit spring 5041. When the first button 504 is pressed, the first limit spring is in a stretched state, and the first button 504 drives the first buckle 503 to rotate around the first rotating shaft 50322, so that the first clamping section 5032 of the first buckle 503 exits the first clamping groove 1105, so that the second slider 110 is separated from the first driving slider 103. In the present embodiment, it should be particularly pointed out that one end of the first button 504 is in pressure-free contact with the first control section 5031 of the first buckle 503. When the first button 504 is not pressed, the first button 504 does not exert a force on the first buckle 503, so as to facilitate the movement of the first buckle 503 relative to the first button 504.

[0104] Furthermore, in order to facilitate the clamping and fixing of the first clip 503 and the second slider 110, a first guide surface 50321 is provided on the side of the first clamping section 5032 of the first clip 503 close to the second slider 110 and / or a second guide surface 1106 is provided on the second slider 110, thereby realizing a quick connection between the second slider 110 and the first driving slider 103.

[0105] Specifically, the first guide surface 50321 and the second guide surface 1106 are both inclined surfaces. Fig. 22 As shown, the first guide surface 50321 and the second guide surface 1106 are inclined toward the second slider 110 at a certain angle. In this embodiment, the greater the inclination angle of the first guide surface 50321 and the second guide surface 1106, the smaller the resistance encountered during the process of advancing the first connecting member 108. It should be particularly pointed out that when the first boss 1083 on the first connecting member 108 is in the process of linear advancement, when the first boss 1083 abuts against the inner wall passing through the first notch 1072 and the second notch 1073, the first buckle 503 and the first slot 1105 are just engaged.

[0106] In one embodiment, in order to facilitate the movement control of the first driving slider 103, a first support plate 1001 and a second support plate 1002 are arranged in the second cavity, the first support plate 1001 and the second support plate 1002 divide the second cavity into a first space, a second space and a third space, the first driving slider 103 is arranged in the second space, a first screw rod 102 and a first guide shaft 104 are arranged between the first support plate 1001 and the second support plate 1002, the first screw rod 102 is rotatably arranged on the first support plate 1001 and the second support plate 1002, the first guide shaft 104 is fixedly arranged on the first support plate 1001 and the second support plate 1002 at both ends, and the first screw rod 102 and the first guide shaft 104 are arranged in parallel, and the first driving slider 103 is movably sleeved on the first screw rod 102 and the first guide shaft 104. In this embodiment, there are two first guide shafts 104. A first motor 101 is arranged in the third space, and an output end of the first motor 101 is connected to a first screw rod 102 . The first motor 101 rotates forward and reversely, thereby driving the first screw rod 102 to rotate forward and reversely, thereby driving the first driving slider 103 to perform reciprocating linear movement.

[0107] Furthermore, a battery 1011 for driving the first motor 101 is disposed in the third space, and the battery 1011 is connected to the first motor 101, so that the control handle 100 can be operated without a power cord, so that it is not restricted by the application environment.

[0108] In one embodiment, in order to make the first connecting slider 106 move linearly in the second cavity, a second guide shaft 105 is provided in the second space, and both ends of the second guide shaft 105 are fixed on the first support plate 1001 and the second support plate 1002, wherein the second guide shaft 105 is arranged in parallel with the first guide shaft 104. Fig.12 As shown, a first limiting groove 10011 is provided on the first support plate 1001, and the first limiting groove 10011 is adapted to the width of the first connecting slider 106, so that the first connecting slider 106 and the inner wall of the first limiting groove 10011 abut against each other, and the abutting surfaces of the two are planes, combined with the second guide shaft 105, thereby limiting the first connecting slider 106 to only make reciprocating linear movements in the second cavity.

[0109] Optionally, the first connecting slider 106 can be limited by a linear convex structure or an irregular hole-shaft matching structure so that the first connecting slider 106 can only move back and forth linearly.

[0110] In one embodiment, Figure 8 and Fig. 9As shown, in order to achieve the position fixation of the first slider 109, a first threaded hole is provided on the first connection slider 106, and an adapted first rubber ring 1064 is provided in the first threaded hole, wherein the number of the first rubber ring 1064 is at least one, and an adapted first threaded column 1063 is provided on the first threaded hole. Specifically, during assembly, the first threaded column 1063 and the first rubber ring 1064 are both sleeved on the second guide shaft 105, and when the first threaded column 1063 rotates in the first threaded hole, the first rubber ring 1064 can be squeezed, thereby increasing the friction between the first connection slider 106 and the second guide shaft 105, so that the first connection slider 106 can keep the position of the first slider 109 relatively fixed relative to the first connection member 108 without being driven by an external force.

[0111] In one embodiment, in order to reduce the volume of the driving control and control handle 100, the first connecting slider 106 and the first driving slider 103 may be connected by power, so that the first driving slider 103 drives the first connecting slider 106 to move synchronously. Figure 7 As shown, in this embodiment, a retractable second latch 1035 is provided on the first driving slider 103, and a third connecting hole 1062 is provided on the first connecting slider 106, wherein the second latch 1035 can be plugged into or out of the third connecting hole 1062, when the second latch 1035 is plugged into the third connecting hole 1062, the first connecting slider 106 and the first driving slider 103 can move synchronously, when the second latch 1035 is out of the third connecting hole 1062, the position of the first connecting slider 106 is fixed, and the first driving slider 103 moves alone, thereby driving the second slider 110 to move alone. In this embodiment, the first latch 1061 and the second latch 1035 have the same structure, and are both telescopic mechanisms of the electric push rod, which are controlled by electric drive, which is a prior art and will not be described in detail here.

[0112] Optionally, as another variation of this embodiment, the third connection hole 1062 may be disposed on the first driving slider 103 , and the second latch 1035 may be disposed on the first connection slider 106 , which may also achieve the above-mentioned purpose.

[0113] In one embodiment, in order to facilitate operation, an operation button 1003 is provided on the control handle 100. Fig.19 As shown, an operation mark is provided on the operation button 1003, and the operator performs corresponding operations according to the operation mark to realize the expansion or contraction of the ablation electrode 500 and the advancement or retreat of the outer sheath 400. The reset button is mainly used to put the ablation electrode 500 in the initial state to prevent the ablation electrode 500 from moving in the human body cavity when it is in the expanded state and not contracted.

[0114] Further, in one embodiment, if Fig.12 and Fig.13 As shown, a first position sensing component and a second position sensing component are provided inside the control handle 100. The first position sensing component is mainly used to detect the position of the first driving slider 103 in the control handle 100 to prevent the first driving slider 103 from overtravel movement. The second sensing position is mainly used to detect whether the ablation electrode 500 is in an initial state. Before and after surgical ablation, a reset process is generally required to put the ablation electrode 500 in an initial state to facilitate movement in the human body cavity and avoid damage to the human body cavity due to untimely contraction. The initial state is when the first driving slider 103 is in the initial state. Fig.13 Specifically, the first position sensing component includes a first photosensitive photocoupler 1004, a second photosensitive photocoupler 1005 and a first photosensitive baffle 1067. The first photosensitive photocoupler 1004 and the second photosensitive photocoupler 1005 are respectively located near the first support plate 1001 and the second support plate 1002. The first photosensitive baffle 1067 is located on the first connecting slider 106. The first photosensitive baffle 1067 reciprocates between the first photosensitive photocoupler 1004 and the second photosensitive photocoupler 1005. The second position sensing component includes a third photosensitive baffle 1065 disposed on the first connecting slider 106 and a third photosensitive photocoupler 1036 disposed on the first driving slider 103. Figure 7 As shown, it is mainly used to confirm whether the first driving slider 103 is in the initial position, that is, the ablation electrode 500 is in the contracted state.

[0115] The above is only a preferred embodiment of the present invention. It should be noted that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. A medical component for automated operation, characterized in that: include: The handle body has a first cavity; A first conduit having a first passage extending therethrough, one end of the first conduit being connected to one end of the handle body; a first connector, which can be detachably connected to an external device, and is disposed at the other end of the first conduit, and is provided with a first sliding cavity, and the first channel connects the first sliding cavity and the first cavity; A first sliding block is movably disposed in a first sliding cavity of the first connecting member, and the first sliding block can perform reciprocating linear movement in the first sliding cavity; An outer sheath tube is arranged at the other end of the handle body, the outer sheath tube can move relative to the handle body, and the first slider can drive the outer sheath tube to move relative to the handle body; The ablation electrode is arranged at the distal end of the outer sheath tube, and the ablation electrode can be configured with ablation energy.

2. A medical component for automated operation according to claim 1, characterized in that: A first pull tube is provided between the first slider and the outer sheath tube. The first pull tube is movably arranged in the first channel. One end of the first pull tube is connected to the first slider, and the other end of the first pull tube passes through the first catheter and is connected to one end of the outer sheath tube.

3. A medical component for automated operation according to claim 2, characterized in that: It also includes a first bridge tube, a second bridge tube and a third bridge tube arranged in the handle body, wherein the first bridge tube is connected to the outer sheath tube, the third bridge tube is connected to the first pull tube, the two ends of the second bridge tube are respectively connected to the first bridge tube and the third bridge tube, the second bridge tube is slidably arranged in the handle body, and the first bridge tube, the second bridge tube and the third bridge tube are coaxially arranged.

4. A medical component for automated operation according to claim 3, characterized in that: The first catheter is provided with a third channel, and the third channel is independent of the first channel. A first wire is provided in the third channel, one end of the first wire passes through the first connector to form a first plug, and the other end of the first wire passes through the second cavity of the body and is provided in the second channel of the outer sheath tube and extends to the distal end of the outer sheath tube.

5. A medical component for automated operation according to claim 4, characterized in that: A first conductive plate of a preset length is provided in the handle body, the first conductive plate is distributed along the axis direction of the outer sheath tube, and a conductive spring is provided on the second bridge tube, the conductive spring abuts against the first conductive plate; The first wire is divided into two sections, including a first section located in the third channel and a second section located in the second channel. One end of the first section of the first wire is connected to the first conductive plate, and one end of the second section of the first wire passes through the outer sheath and is connected to the conductive spring.

6. A medical component for automated operation according to claim 5, characterized in that: It also includes a second slider capable of reciprocating linear movement in the first sliding cavity and a control wire movably arranged in the outer sheath tube and the first pull tube, one end of the control wire passing through the first pull tube and connected to the second slider; The ablation electrode is a basket weaving structure, having a first end and a second end. The first end of the ablation electrode is connected to one end of the control wire, the second end of the ablation electrode is connected to one end of the outer sheath tube, and the ablation electrode is connected to one end of the second segment of the first wire.

7. A medical component for automated operation according to claim 3, characterized in that: A plurality of third support plates are provided in the handle body, and grooves matching the shape of the second bridging tube are provided on the plurality of support plates. The second bridging tube reciprocates on the plurality of third support plates, wherein the outer diameter of the second bridging tube is larger than the outer diameters of the first bridging tube and the third bridging tube, the outer diameter of the third bridging tube is larger than the outer diameter of the first pulling tube, and the outer diameter of the first bridging tube is larger than the outer diameter of the outer sheath tube.

8. The medical component for automated operation according to claim 6, characterized in that: The first sliding block is provided with a first connecting hole, and the second sliding block is provided with a second connecting hole. The first connecting hole may correspond to the second connecting hole in position.

9. A medical component for automated operation according to claim 8, characterized in that: A first limiting structure is provided between the first slider and / or the second slider and the first connecting member, and the first limiting structure is used for the first connecting member to drive the first slider and the second slider to rotate synchronously.

10. A medical component for automated operation according to claim 9, characterized in that: The first limiting structure includes a first limiting boss provided on the first sliding block and / or a first limiting boss provided on the second sliding block, and a first limiting groove provided on the first sliding cavity of the first connecting member; or A first limiting groove provided on the first sliding block and / or a first limiting groove provided on the second sliding block, and a first limiting boss provided on the first sliding cavity of the first connecting member; The first limiting boss is adapted to the first limiting groove and the two are mutually clamped, and the first limiting boss and the first limiting groove are both distributed along the axial direction of the first connecting member.

11. A medical component for automated operation according to claim 10, characterized in that: A first fitting portion is provided between the first slider and the second slider, the first connection hole and the second connection hole are both provided in the first fitting portion, and the second slider can rotate synchronously with the first slider through the fitting portion.

12. An automatically operated medical device, characterized in that: include: A medical component for automated operation as claimed in any one of claims 1 to 11; A control handle having a second cavity; A first driving slider is movably disposed in the second cavity of the control handle, the first driving slider can make reciprocating linear movements, and the first driving slider is provided with a first connecting portion; a second engaging portion is provided between the second slider and the first connecting portion, and the second engaging portion is used for detachable connection between the second slider and the first connecting portion, so that the second slider is separated from the first connecting portion or the second slider moves synchronously with the first driving slider; A first support tube is arranged on the control handle, and the first connecting member is detachably arranged on the first support tube; The first connecting slider is movably arranged in the second cavity. The first connecting slider can make reciprocating linear movements in the second cavity. The first connecting slider is provided with a retractable first pin. The first pin can be inserted only into the first connecting hole or simultaneously into the first connecting hole and the second connecting hole.

13. An automated medical device according to claim 12, characterized in that: It also includes a first support plate, a second support plate, a first motor, a first screw rod, and a first guide shaft. The first support plate and the second support plate are arranged in the second cavity at an interval. The first motor is arranged on the second support plate. The two ends of the first screw rod are respectively rotatably arranged on the first support plate and the second support plate, and the first screw rod is connected to the output end of the first motor. The two ends of the first guide shaft are respectively arranged on the first support plate and the second support plate, and the first guide shaft is arranged parallel to the first screw rod. The first driving slider is sleeved on the first screw rod and the first guide shaft.

14. An automated medical device according to claim 13, characterized in that: It also includes a second guide shaft arranged in the second cavity, the first connecting slider is passed through the second guide shaft, the second guide shaft and the first guide shaft are parallel to each other, and a first limiting groove adapted to the first connecting slider is arranged on the first support plate, and the first connecting slider abuts against the inner wall of the first limiting groove.

15. An automated medical device according to claim 14, characterized in that: The first connecting slider is provided with a first threaded hole, in which at least one first rubber ring is provided, and the first threaded hole is further provided with a first threaded column, which can squeeze the first rubber ring, and the first threaded column and the first rubber ring are passed through the second guide shaft.

16. An automated medical device according to claim 15, characterized in that: It also includes a second latch arranged on the first driving slider and a third connecting hole arranged on the first connecting slider, or a third connecting hole arranged on the first driving slider and a second latch arranged on the first connecting slider, the second latch is adapted to the three connecting holes, and the second latch can be plugged into or detached from the third connecting hole.

17. An automated medical device according to claim 13, characterized in that: One end of the first support tube is fixed to the first support plate, and the other end of the first support tube is connected to the control handle; The first supporting tube is provided with a through first cylindrical channel, the first cylindrical channel is adapted to the shape of the first connecting member, the first supporting tube is provided with a first slot and a second slot, the first connecting member is provided with a first boss, the first slot and the second slot are connected, the width of the first slot is adapted to the width of the first boss, the width of the two slots is adapted to the length of the first boss, and the second slot is provided with a preset length.

18. An automated medical device according to claim 17, characterized in that: The first supporting tube is provided with a first giving way groove distributed along its own axial direction, the first connecting member is provided with a second giving way groove, the first connecting hole and the second connecting hole correspond to the position of the second giving way groove, the first giving way groove corresponds to the position of the first latch, and when the first boss enters the second slot through the first slot and rotates in the second slot, the first giving way groove can correspond to the position of the second giving way groove.

19. An automated medical device according to claim 18, characterized in that: The second engaging portion includes a second boss disposed on the second slider and a third notch and a fourth notch disposed on the first connecting portion, the third notch and the fourth notch are connected, the third notch is adapted to the shape of the second boss, and the fourth notch is provided with a preset length; The second boss includes a rotating part and a limiting part, the third slot includes a rotating groove and a limiting groove, the thickness of the limiting part of the second boss is adapted to the width of the fourth slot, wherein the angle of rotation of the second boss in the fourth slot is consistent with the angle of rotation of the first boss in the second slot.

Citation Information

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