A reverse internal and external dual positioning device suitable for minimally invasive spinal surgery

Abstract

The present invention relates to a reverse internal and external dual positioning device suitable for minimally invasive spine surgery, comprising a device body, a fixing seat is arranged at the upper end of the device body, a one-piece channel assembly is arranged at the lower end of the device body, a lens assembly is installed on the fixing seat, the lower end of the lens assembly is connected to the one-piece channel assembly, a bone dynamic depth control mechanism is arranged in the one-piece channel assembly, a steel plate assembly is also arranged in the one-piece channel assembly, a guide device is arranged on the device body, the steel plate assembly comprises a steel plate body, the steel plate body is connected to an adjustment rod through a universal joint, and a plurality of connecting screw assemblies are arranged on the steel plate body. Thus, the device body and the bone dynamic depth control mechanism respectively always maintain a certain downward pressure and upward lifting force, accurately and adaptively double-position the outer and inner surfaces of the bone, and ensure the safety of the operation.

Description

Technical Field

[0001] The invention relates to a minimally invasive surgery positioning device, in particular to a reverse inside-outside double positioning device suitable for minimally invasive spine surgery. Background Art

[0002] In recent years, the field of minimally invasive spinal surgery has made some major progress. Various minimally invasive spinal surgical equipment, such as minimally invasive spinal surgical endoscopes (including intervertebral disc endoscopes, intervertebral foraminal endoscopes, UBE endoscopes, etc.), spinal surgical robots, etc., have been widely used. At present, the positioning methods of these minimally invasive spinal surgical equipment are different, and can be roughly divided into the following methods: 1. Visual inspection; 2. Relying on touch; 3. Using preoperative and intraoperative image registration, intraoperative navigation, etc. Based on the past understanding of spinal degenerative diseases, they are mainly used for minimally invasive spinal surgeries such as disc removal.

[0003] Recently, literature has reported that cervical microendoscopic laminoplasty (CMEL) can cause extensive natural absorption of herniated discs, with an absorption ratio of 81.2% and a maximum absorption rate of 100%. This is the first minimally invasive spinal surgery that can artificially and efficiently "induce" herniated discs to undergo extensive natural absorption, so it is also called "herniated disc natural absorption induction surgery."

[0004] The emergence of this result indicates that the method of minimally invasive surgery for intervertebral disc herniation will undergo a disruptive change: the model that mainly uses "removing the herniated intervertebral disc" as the main treatment method will enter a model that mainly focuses on "preserving the herniated intervertebral disc" (abbreviated as "disc preservation") and allowing it to be absorbed naturally.

[0005] It can be seen that the existing minimally invasive spinal surgery equipment has some "congenital deficiencies" because they are designed to "remove" rather than "retain" the herniated intervertebral disc. Specifically, there are the following defects:

[0006] 1. Positioning basically relies on the operator's visual observation of the outer surface of the bone and hand-eye coordination, which has the risk of low accuracy and possible "misses".

[0007] 2. Preoperative and intraoperative image registration and intraoperative navigation are used. Although the accuracy is relatively high, the system structure is complex and the function is very simple. Currently, it can only be used for pedicle screw placement.

[0008] 3. Due to structural reasons, it cannot be used for CMEL procedures.

[0009] 4. If it is used for CMEL operation after modification, the operation requirements are high and the process is complicated. The existing steel plate and channel are separate structures, which is particularly cumbersome when multiple steel plates are used for multiple installations. At the same time, there are multiple difficulties such as interference between the posture adjustment of the steel plate and the channel in a narrow space (such as the channel of the endoscope), multiple skin auxiliary incisions for installation at a large tilt angle, and alternating exposure and cross-operation of the steel plate positioning and screw placement, which seriously restrict the application of these existing minimally invasive spinal surgery equipment in the field of "disc preservation" technology.

[0010] In view of the above-mentioned defects, the designer has actively carried out research and innovation in order to create a reverse inside-outside dual positioning device suitable for minimally invasive spinal surgery, making it more valuable for industrial use. Summary of the invention

[0011] In order to solve the above technical problems, the purpose of the present invention is to provide a reverse inside-outside dual positioning device suitable for minimally invasive spinal surgery.

[0012] The present invention discloses a reverse inside-outside dual positioning device suitable for minimally invasive spinal surgery, comprising a device body, wherein: a fixing seat is arranged at the upper end of the device body, a one-piece channel assembly is arranged at the lower end of the device body, a lens assembly is installed on the fixing seat, the lower end of the lens assembly is connected to the one-piece channel assembly, a bone dynamic depth control mechanism is arranged in the one-piece channel assembly, a steel plate assembly is also arranged in the one-piece channel assembly, a guiding device is arranged on the device body, the steel plate assembly comprises a steel plate body, the steel plate body is connected to an adjusting rod via a universal joint, and a plurality of connecting screw assemblies are arranged on the steel plate body.

[0013] Furthermore, the above-mentioned reverse inside-outside dual positioning device suitable for minimally invasive spinal surgery is provided with a guide channel on the fixing seat, and a main fixing screw is provided on one side of the fixing seat. The lens assembly is locked by the main fixing screw after passing through the guide channel.

[0014] Furthermore, the above-mentioned reverse inside-outside dual positioning device suitable for minimally invasive spinal surgery, wherein the one-piece channel assembly includes a steel plate one-piece inner channel assembly, an upper cover is provided on the steel plate one-piece inner channel assembly, a channel hole is provided on the upper cover, the lens assembly is connected to the channel hole, an open groove is provided at the lower end of the steel plate one-piece inner channel assembly, and the lower end of the steel plate assembly corresponds to the open groove.

[0015] Furthermore, the above-mentioned reverse inside-outside dual positioning device suitable for minimally invasive spinal surgery, wherein the bone dynamic depth control mechanism includes an outer channel tube, the wall of the outer channel tube has an auxiliary groove corresponding to the open groove at the lower end of the steel plate internal channel assembly, the outer channel tube is provided with a decompression inner channel, and the decompression inner channel is provided with a suction device and a bone dynamic device.

[0016] Furthermore, the above-mentioned reverse inside-outside dual positioning device suitable for minimally invasive spinal surgery, wherein the bone power device includes a bone power body, the tail end of the bone power body is provided with an inner sleeve with a hook, an outer sleeve is provided outside the inner sleeve with a hook, a buffer spring is provided between the outer sleeve and the inner sleeve with a hook, and a limiting cap is provided on the outer sleeve.

[0017] Furthermore, the above-mentioned reverse inside-outside dual positioning device suitable for minimally invasive spinal surgery, wherein a positioning hole is provided at the upper end of the steel plate body, a positioning screw is provided in the positioning hole, a threaded hole is provided at the lower end of the steel plate body, the connecting screw assembly is provided in the threaded hole, the connecting screw assembly includes a light column screw and a flat head screw, the steel plate body is provided with an elastic limiting mechanism on one side of the light column screw, the elastic limiting mechanism is in contact with the light column screw, and a threading hole is provided on the steel plate body.

[0018] Furthermore, the above-mentioned reverse inside-outside dual positioning device suitable for minimally invasive spinal surgery, wherein the light column screw includes a screw body, a threaded structure is provided on the screw body, a plurality of limit grooves are distributed on the upper end of the threaded structure, and a light column structure is provided at the lower end of the threaded structure; the flat head screw includes a screw body, a threaded structure is provided on the screw body, and a contact surface is provided at the lower end of the threaded structure; the elastic limit mechanism includes a card slot provided in the steel plate body, a spring card is provided in the card slot, and the side end of the spring card is in contact with the limit groove.

[0019] Furthermore, the above-mentioned reverse inside-outside dual positioning device suitable for minimally invasive spinal surgery, wherein the guiding device includes a mounting groove arranged on the device body, a guide spring is arranged in the mounting groove, and a Z-axis rotating rod is arranged at the upper end of the guide spring in the mounting groove.

[0020] Furthermore, the above-mentioned reverse inside-outside dual positioning device suitable for minimally invasive spinal surgery, wherein a Z-shaped support plate is provided on the device body, the upper end of the Z-shaped support plate is connected to the device body through a secondary fixing screw, the lower end of the Z-shaped support plate is provided with a support sleeve, and the one-piece channel assembly is connected to the support sleeve.

[0021] Furthermore, in the above-mentioned reverse inside-outside dual positioning device suitable for minimally invasive spinal surgery, the lens assembly is an adjustable lens device.

[0022] By means of the above scheme, the present invention has at least the following advantages:

[0023] 1. It can realize reverse and adaptive dual positioning of the inner and outer surfaces of the bone, which can ensure the accuracy and safety of the operation. The device body always maintains a certain downward pressure, which is conducive to the one-piece channel component to ensure that the channel and the outer surface of the bone are in contact during the human body's breathing and movement. It can not only accurately locate the outer surface of the bone, but also prevent muscles from drilling into the channel to affect the surgical operation.

[0024] 2. Through the bone dynamic depth control mechanism, the hook with hook inner sleeve can hook the inner surface of the bone and maintain a certain lifting force, which can adaptively and accurately locate the inner surface of the bone.

[0025] 3. The device body always maintains a certain pressure downward and the bone dynamic depth control mechanism always points upward. The two can adaptively locate the outer and inner surfaces of the bone in reverse, accurately indicate the spatial position of the outer and inner surfaces of the bone, avoid accidental contact with the nerves, and ensure the safety of the operation.

[0026] 4. It can realize precise control of the entry depth of bone cutting power to prevent it from accidentally entering the spinal canal and ensure safe use.

[0027] 5. Unilateral operation can complete the overall symmetrical upward movement of the ipsilateral steel plate, ligament complex, and contralateral steel plate. The spring card in the steel plate body automatically pops into the limiting groove to achieve fixation, which greatly simplifies the operation and shortens the operation time.

[0028] 6. The overall structure is simple and the size is compact, making it easy to master and use safely.

[0029] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The figure is a schematic diagram of the overall structure of the reverse inside-outside dual positioning device suitable for minimally invasive spinal surgery.

[0031] Figure 2 The diagram is a schematic diagram of the internal structure of the reverse inside-outside dual positioning device suitable for minimally invasive spinal surgery.

[0032] Figure 3 It is a structural schematic diagram of the bone dynamic depth control mechanism.

[0033] Figure 4 It is a structural schematic diagram of a one-piece channel assembly.

[0034] Figure 5 It is a schematic diagram of the side structure of the steel plate assembly.

[0035] Figure 6 It is a schematic diagram of the combination of the steel plate body and the screw assembly.

[0036] Figure 7 This is a schematic diagram of the combination of the plate body and the bone.

[0037] Figure 8 It is an implementation method of a special shape of an inner sleeve with a hook.

[0038] The meanings of the reference numerals in the drawings are as follows.

[0039] 1 Equipment body 2 Fixing base

[0040] 3 One-piece channel assembly 4 Lens assembly

[0041] 5 Bone dynamic depth control mechanism 6 Plate body

[0042] 7 Universal joint 8 Adjustment rod

[0043] 9 Guide channel 10 Main fixing screw

[0044] 11 Steel plate internal channel assembly 12 Upper cover

[0045] 13 Open slot 14 External channel tube

[0046] 15 Decompression channel 16 Suction device

[0047] 17 Bone power device 18 Hook inner sleeve

[0048] 19 Outer sleeve 20 Buffer spring

[0049] 21 Limiting cap 22 Positioning hole

[0050] 23 Positioning screw 24 Light column screw

[0051] 25 Flat head screw 26 Limiting slot

[0052] 27 Light column structure 28 Contact surface

[0053] 29 Card slot 30 Spring card

[0054] 31 Guide spring 32 Z-axis rotation rod

[0055] 33 Limiting ring 34 Z-shaped support plate

[0056] 35 Auxiliary fixing screw 36 Threading hole

[0057] 37 Pull wire 38 Auxiliary slot

[0058] 39 Rod with hook DETAILED DESCRIPTION

[0059] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0060] like Figures 1 to 7 A reverse internal and external dual positioning device suitable for minimally invasive spinal surgery includes a device body 1, which is different in that: a fixing seat 2 is provided at the upper end of the device body 1, and a one-piece channel assembly 3 is provided at the lower end of the device body 1. In order to facilitate visual observation during surgery, the present invention installs a lens assembly 4 on the fixing seat 2, and the lower end of the lens assembly 4 is connected to the one-piece channel assembly 3. At the same time, a bone power depth control mechanism 5 is provided in the one-piece channel assembly 3, and a steel plate assembly is also provided in the one-piece channel assembly 3. In addition, in order to cooperate with the subsequent position driving device to achieve more precise adjustment of the working angle, a guide device is provided on the device body 1. Furthermore, considering the need for the implementation of minimally invasive surgery steel plate internal fixation, the steel plate assembly includes a steel plate body 6, the steel plate body 6 is connected to an adjustment rod 8 through a universal joint 7, and a plurality of connecting screw assemblies are provided on the steel plate body 6.

[0061] In combination with a preferred embodiment of the present invention, a guide channel 9 is provided on the fixing seat 2, and a main fixing screw 10 is provided on one side of the fixing seat 2. The lens assembly 4 passes through the guide channel 9 and is locked by the main fixing screw 10. In this way, the lens assembly 4 can be effectively positioned to avoid unnecessary movement during use, and the depth of the lens assembly 4 can be adjusted according to actual surgical needs to better obtain the observation field of view. At the same time, considering the convenience of use, the lens assembly 4 is an adjustable lens device.

[0062] Further, the one-piece channel assembly 3 includes a steel plate one-piece internal channel assembly 11, an upper cover 12 is provided on the steel plate one-piece internal channel assembly 11, a channel hole is provided on the upper cover 12, the lens assembly 4 is connected to the channel hole, and an open groove 13 is provided at the lower end of the steel plate one-piece internal channel assembly 11, and the lower end of the steel plate assembly corresponds to the open groove 13. At the same time, auxiliary grooves 38 can be distributed in the steel plate one-piece internal channel assembly 11. In this way, the steel plate body 6 can be appropriately limited by the auxiliary grooves 38, so that it can be set in the steel plate one-piece internal channel assembly 11 in a suspended state.

[0063] In view of the actual implementation, the one-piece channel assembly 3 adopted by the present invention includes an outer channel tube 14, and an auxiliary groove (not shown in the figure) corresponding to the open groove 13 at the lower end of the steel plate one-piece inner channel assembly 11 is provided on the wall of the outer channel tube 14, and a decompression inner channel 15 is provided inside the outer channel tube 14, and a suction device 16 and a bone power device 17 are provided inside the decompression inner channel 15. Specifically, the bone power device 17 includes a bone power body and a bone power depth control mechanism 5. The bone power depth control mechanism 5 includes an outer sleeve 19, an inner sleeve 18 with a hook, a buffer spring 20 is provided between the outer sleeve 19 and the inner sleeve 18 with a hook, and a limit cap 21 is provided on the inner sleeve 18 with a hook. The bone power body is located inside the inner sleeve 18 with a hook.

[0064] like Figure 8 As shown, for some special use needs, the structure of the hooked inner sleeve can also be changed to a hooked rod 39, and the depth of the bone power body can be controlled by a limiting ring 33 fixed on the hooked rod 39.

[0065] Looking further, the present invention is provided with a positioning hole 22 at the upper end of the steel plate body 6, and a positioning screw 23 is provided in the positioning hole 22. At the same time, a threaded hole is provided at the lower end of the steel plate body 6, and a connecting screw assembly is provided in the threaded hole. Specifically, the connecting screw assembly includes a light column screw 24 and a flat head screw 25. An elastic limiting mechanism is provided on the steel plate body 6 on one side of the light column screw 24, and the elastic limiting mechanism is in contact with the light column screw 24. In addition, a threading hole 36 is provided on the steel plate body 6 to facilitate the subsequent wire pulling 37 operation. During actual use, the light column screw 24 used in the present invention includes a screw body, a threaded structure is provided on the screw body, a plurality of limiting grooves 26 are distributed on the upper end of the threaded structure, and a light column structure 27 is provided on the upper end of the threaded structure. The flat head screw 25 used includes a screw body, a threaded structure is provided on the screw body, and a contact surface 28 is provided at the lower end of the threaded structure. In order to achieve appropriate elastic limiting, the elastic limiting mechanism includes a card slot 29 provided in the steel plate body 6, a spring card 30 is provided in the card slot 29, and the side end of the spring card 30 contacts the limiting slot 26. Of course, due to the use of a threaded structure, for some special use needs, the elastic limiting mechanism can also be removed from the steel plate body 6, and the screw body and the threaded hole can be threadedly combined for positioning.

[0066] In order to satisfy multi-directional adjustment, the guide device used in the present invention includes a mounting groove arranged on the device body 1 , a guide spring 31 is arranged in the mounting groove, and a Z-direction rotating rod 32 is arranged at the upper end of the guide spring 31 .

[0067] In view of actual assembly, the present invention is provided with a Z-shaped support plate 34 on the equipment body 1, the upper end of the Z-shaped support plate 34 is connected to the equipment body 1 through a secondary fixing screw 35, the lower end of the Z-shaped support plate 34 is provided with a support sleeve, and the one-piece channel assembly 3 is connected to the support sleeve.

[0068] The working principle of the present invention is as follows:

[0069] After pressing down the hook inner sleeve 18 so that the hook at the head end hooks the inner surface of the bone, the buffer spring 20 is compressed, and its elastic force pushes the hook inner sleeve 18 upward, so that the hook inner sleeve 18 can be adaptively raised and lowered and positioned along with the inner surface of the bone. The tail of the hook inner sleeve 18 is threaded, and the limit cap 21 can be rotated to the top of the outer sleeve 19 to play a limit role. In this way, the hook inner sleeve 18 is prevented from accidentally falling and touching the nerve tissue, which may cause danger. In addition, the interior of the hook inner sleeve 18 is hollow, which allows the bone power device 17 to just cut through the bone without touching the nerve tissue, ensuring safety.

[0070] During use, after the outer channel is inserted into the human body, the soft tissue can be blocked, and the decompression inner channel 15 is inserted into the outer channel. The electric knife is used to clean the soft tissue through the lumen of the decompression inner channel 15 and the hook inner sleeve 18, and the bone power device 17 first opens a decompression groove on one side of the spinal canal. Then the decompression inner channel 15 is removed and replaced with the steel plate connected inner channel assembly 11. The posture of the steel plate connected inner channel assembly 11 can be adjusted accordingly by adjusting the outer channel.

[0071] Afterwards, the universal rod and the Z-axis rotating rod 32 are used to make the steel plate body 6 fall off from the open groove 13 of the internal channel of the joint and reach the ideal position on the outer surface of the bone. Next, the light column screw 24 is screwed in, and the pull wire 37 on the threading hole 36 of the steel plate body 6 is left outside the incision for standby use. Then, the same operation is performed on the opposite side, the flat head screw 25 is screwed in and the pull wire 37 is pulled to assist in lifting, and the steel plate bodies 6 on both sides and the spinous process ligament complex are definitely lifted and fixed firmly. In this way, the steel plate bodies 6 on both sides can be moved up together by unilateral operation, avoiding cumbersome operations such as alternating exposure and cross operation on the left and right sides.

[0072] It can be seen from the above textual description and the accompanying drawings that the present invention has the following advantages:

[0073] 1. It can realize reverse and adaptive dual positioning of the inner and outer surfaces of the bone, which can ensure the accuracy and safety of the operation. The device body always maintains a certain downward pressure, which is conducive to the one-piece channel component to ensure that the channel and the outer surface of the bone are in contact during the human body's breathing and movement. It can not only accurately locate the outer surface of the bone, but also prevent muscles from drilling into the channel to affect the surgical operation.

[0074] 2. Through the bone dynamic depth control mechanism, the hook with hook inner sleeve can hook the inner surface of the bone and maintain a certain lifting force, which can adaptively and accurately locate the inner surface of the bone.

[0075] 3. The device body always maintains a certain pressure downward and the bone dynamic depth control mechanism always points upward. The two can adaptively locate the outer and inner surfaces of the bone in reverse, accurately indicate the spatial position of the outer and inner surfaces of the bone, avoid accidental contact with the nerves, and ensure the safety of the operation.

[0076] 4. It can realize precise control of the entry depth of bone cutting power to prevent it from accidentally entering the spinal canal and ensure safe use.

[0077] 5. Unilateral operation can complete the overall symmetrical upward movement of the ipsilateral steel plate, ligament complex, and contralateral steel plate. The spring card in the steel plate body automatically pops into the limiting groove to achieve fixation, which greatly simplifies the operation and shortens the operation time.

[0078] 6. The overall structure is simple and the size is compact, making it easy to master and use safely.

[0079] In addition, the indicated orientations or positional relationships described in the present invention are all based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or structure referred to must have a specific orientation or be operated with a specific orientation structure. Therefore, they cannot be understood as limitations on the present invention.

[0080] The terms "primary" and "secondary" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "primary" or "secondary" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0081] Likewise, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0082] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "setting" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. And it can be directly on another component or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0083] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0084] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A reverse internal and external dual positioning device suitable for minimally invasive spinal surgery, comprising a device body, characterized in that: The upper end of the device body is provided with a fixing seat, the lower end of the device body is provided with a one-piece channel assembly, the fixing seat is mounted with a lens assembly, the lower end of the lens assembly is connected to the one-piece channel assembly, a bone power depth control mechanism is provided in the one-piece channel assembly, a steel plate assembly is also provided in the one-piece channel assembly, a guide device is provided on the device body, the steel plate assembly includes a steel plate body, the steel plate body is connected with an adjustment rod through a universal joint, and a plurality of connecting screw assemblies are provided on the steel plate body; The fixing seat is provided with a guide channel, a main fixing screw is provided on one side of the fixing seat, and the lens assembly is locked by the main fixing screw after passing through the guide channel; The one-piece channel assembly comprises a steel plate one-piece internal channel assembly, an upper cover is provided on the steel plate one-piece internal channel assembly, a channel hole is provided on the upper cover, the lens assembly is connected to the channel hole, an open groove is provided at the lower end of the steel plate one-piece internal channel assembly, and the lower end of the steel plate assembly corresponds to the open groove; The bone power depth control mechanism comprises an outer channel tube, a decompression inner channel is sleeved in the outer channel tube, an aspirator and a bone power device are arranged in the decompression inner channel, the bone power device comprises a bone power body, an inner sleeve with a hook is arranged at the tail end of the bone power body, an outer sleeve is arranged outside the inner sleeve with a hook, a buffer spring is arranged between the outer sleeve and the inner sleeve with a hook, and a limit cap is arranged on the outer sleeve; A positioning hole is provided at the upper end of the steel plate body, a positioning screw is provided in the positioning hole, a threaded hole is provided at the lower end of the steel plate body, the connecting screw assembly is provided in the threaded hole, the connecting screw assembly includes a light column screw and a flat head screw, an elastic limiting mechanism is provided on one side of the steel plate body located at the light column screw, the elastic limiting mechanism is in contact with the light column screw, and a threading hole is provided on the steel plate body; the light column screw includes a screw body, a threaded structure is provided on the screw body, a plurality of limiting grooves are distributed on the upper end of the threaded structure, a light column structure is provided at the lower end of the threaded structure, the flat head screw includes a screw body, a threaded structure is provided on the screw body, a contact surface is provided at the lower end of the threaded structure, the elastic limiting mechanism includes a card slot provided in the steel plate body, a spring card is provided in the card slot, and the side end of the spring card is in contact with the limiting slot; The guide device comprises a mounting groove arranged on the equipment body, a guide spring is arranged in the mounting groove, and a Z-direction rotating rod is arranged at the upper end of the guide spring in the mounting groove; A Z-shaped support plate is provided on the equipment body, the upper end of the Z-shaped support plate is connected to the equipment body through a secondary fixing screw, a support sleeve is provided at the lower end of the Z-shaped support plate, and the one-piece channel assembly is connected to the support sleeve; The lens assembly is an adjustable lens device.

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