Pediatric tumor sampling device and use method thereof

By designing a flexible and adjustable dual clamping system and a multi-dimensional precise positioning and adjustment sampling device, the problem of insufficient fixing and positioning and adjustment of clamping structures in the prior art is solved, and stable clamping and accurate sampling of biopsy guns with different shapes is achieved, which improves the versatility and safety of pediatric tumor sampling.

CN120392178AInactive Publication Date: 2025-08-01FUJIAN PROVINCIAL HOSPITAL
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Patent Information

Application Number
CN202510523298.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-08
Publication Date
2025-08-01
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing pediatric tumor sampling devices have a fixed clamping structure, which cannot be adapted to biopsy guns in different shapes, and lack of positioning and adjustment accuracy, inconvenient operation, making it difficult to meet the accurate sampling needs of pediatric patients.

Method used

A pediatric tumor sampling device is designed, adopting a flexible and adjustable dual clamping system, including arc-shaped and planar clamping blocks, combined with electric turntables, lifting components and visual assistive functions, supporting multi-dimensional precise positioning and adjustment, adapting to different positions and tumor positions.

Benefits of technology

It realizes stable clamping of biopsy guns of different shapes, and multi-dimensional precise positioning, which improves the universality and safety of the sampling device, reduces the preparation time of medical staff, and improves sampling efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the field of tumor sampling, and particularly relates to a pediatric tumor sampling device and a using method thereof.The pediatric tumor sampling device comprises a bed body, a sliding frame is arranged above the bed body, an electric rotating disc is arranged on the sliding frame, the rotating end of the electric rotating disc is fixedly connected with a lifting assembly, and an extension plate is arranged on the lifting assembly; a supporting block is fixedly connected to the outer wall of the extension plate, a placing plate is rotatably connected to the top of the supporting block, a first clamping assembly is arranged on the placing plate, and the first clamping assembly comprises a first fixing block. According to the pediatric tumor sampling device and the using method thereof, the clamping assembly I and the clamping assembly II are arranged, so that the circular biopsy gun and the square biopsy gun can be accurately fixed respectively. The first adjusting block or the second adjusting block is rotated, stable clamping of instruments of different specifications is achieved, the problem that due to the appearance difference of the instruments, fixing is not firm or operation is not convenient is solved, and the universality of the device is remarkably improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of tumor sampling, and specifically to a sampling device for pediatric tumors and its usage method. Background Art

[0002] Precise sampling of pediatric tumors is a key link in pathological diagnosis and treatment plan formulation. Due to the special physiological structure of children, the tumor location is often relatively deep and adjacent to important organs, posing extremely high requirements for the flexibility, precision, and safety of the sampling device.

[0003] Currently, in the prior art, traditional pediatric tumor sampling devices have deficiencies: ① The clamping structure is fixed and can only be adapted to a single-shaped biopsy gun. When replacing instruments, the components need to be disassembled as a whole; ② Positioning adjustment relies on manual multi-joint operation, and the control precision of angles and heights is insufficient, making it difficult to meet the fine sampling requirements of pediatric patients. In view of this, we propose a sampling device for pediatric tumors and its usage method. Summary of the Invention

[0004] The main purpose of the present invention is to provide a sampling device for pediatric tumors and its usage method, which can solve the problems raised in the above background art.

[0005] To achieve the above purpose, the sampling device for pediatric tumors proposed by the present invention includes a bed body. Above the bed body, there is a sliding frame. On the sliding frame, there is an electric turntable. The rotating end of the electric turntable is fixedly connected to a lifting assembly. On the lifting assembly, there is an extension plate. The outer wall of the extension plate is fixedly connected to a support block. The top of the support block is rotatably connected to a placement plate. On the placement plate, there is a clamping assembly one, and the clamping assembly one includes:

[0006] A first fixing block. On both sides of the placement plate, there are fixedly connected first fixing blocks. Inside the first fixing blocks, there is a first bidirectional screw rotatably connected.

[0007] A first movable block. The outer wall of the first bidirectional screw is threadedly connected to the first movable block. The top of the first movable block is fixedly connected to an arc-shaped clamping block.

[0008] A first adjusting block. On both sides of the first bidirectional screw, there are fixedly connected first adjusting blocks. On the top of the placement plate, there is a first guiding rail fixedly connected.

[0009] Preferably, the bottom of the first movable block is slidably connected to the outer wall of the first guiding rail. On the placement plate, there is a clamping assembly two. The clamping assembly two includes a second fixing block. On both sides of the placement plate, there are fixedly connected second fixing blocks. Inside the second fixing blocks, there is a second bidirectional screw rotatably connected.

[0010] Preferably, the outer wall of the bidirectional screw rod 2 is threadedly connected to the movable block 2, the top of the movable block 2 is fixedly connected to the planar clamping block, both sides of the bidirectional screw rod 2 are fixedly connected to the adjustment block 2, the top of the placement plate is fixedly connected to the guide rail 2, and the bottom of the movable block 2 is slidably connected to the outer wall of the guide rail 2.

[0011] Preferably, the top of the support block is fixedly connected to a fixed column, the inner wall of the placement plate is rotatably connected to the outer wall of the fixed column, the outer wall of the fixed column is fixedly connected to a sleeve plate, the inner wall of the sleeve plate is slidably connected to a directional rod, the top of the directional rod is fixedly connected to a toggle block, the sleeve plate and the toggle block are elastically connected by a spring, and a positioning hole is provided on the placement plate.

[0012] Preferably, a heightening plate is fixedly connected to the top of the bed, a slide rail is fixedly connected to the top of the heightening plate, and the bottom of the slide is slidably connected to the outer wall of the slide rail.

[0013] Preferably, the outer wall of the slide is fixedly connected to a right-angle frame, the inner wall of the right-angle frame is threadedly connected to a threaded rod, one end of the threaded rod is fixedly connected to an adjustment disk, and the other end of the threaded rod is fixedly connected to a pressure plate.

[0014] Preferably, the outer wall of the slide is fixedly connected to a support rail, the outer wall of the support rail is slidably connected to a lower synchronization block, the side of the lower synchronization block away from the support rail is fixedly connected to a connecting plate, the outer wall of the electric turntable is fixedly connected to the outer wall of the connecting plate, the top of the slide is fixedly connected to an electric slide, the sliding end of the electric slide is fixedly connected to a push plate, the outer wall of the push plate is fixedly connected to an upper synchronization block, and the side of the upper synchronization block away from the push plate is fixedly connected to the outer wall of the connecting plate.

[0015] Preferably, the top of the slide is fixedly connected to a rotating column, the top of the rotating column is rotatably connected to a rotating plate through a damping bearing, the top of the rotating plate is rotatably connected to a placement rack through a damping bearing, and a display is placed on the top of the placement rack.

[0016] Preferably, the lifting assembly includes a lifting frame seat, the inner wall of the lifting frame seat is rotatably connected to a threaded rod, the end face of the threaded rod is fixedly connected to a rocker, the outer wall of the threaded rod is threadedly connected to a lifting block, the inner wall of the lifting frame seat is fixedly connected to a guide rod, the inner wall of the lifting block is slidably connected to the outer wall of the guide rod, and the outer wall of the extension plate is fixedly connected to the outer wall of the lifting block.

[0017] The present invention provides a method for using a pediatric tumor sampling device, comprising the following steps:

[0018] S1. Rotate the adjusting disk to drive the threaded rod to rotate, so that the pressure plate leaves the surface of the heightened plate, making it easier for us to move the slide to the vicinity of the human body sampling area. Reverse the pressure plate to make it close to the heightened plate again, completing the fixation of the slide;

[0019] S2. Start the electric slide to drive the push plate to move, and cooperate with the synchronous block to drive the connecting plate to move synchronously, so as to change the position of the electric turntable. By starting the electric turntable, the angle of the lifting component can be changed, which drives the angle of the extension plate to change, so that the angles of the parts on it are changed synchronously;

[0020] S3. Determine the biopsy gun to be used based on the patient's condition. If the biopsy gun is round, use clamp assembly 1 to secure it. If the biopsy gun is square, use clamp assembly 2 to secure it.

[0021] S4. By moving the toggle block upward, the directional rod is driven out of the positioning hole, which makes it easier for us to rotate the placement plate 180 degrees. Then, the toggle block is released, and the directional rod is reinserted into another set of positioning holes to re-fix the placement plate. This completes the replacement of the clamping assembly 1 and the clamping assembly 2, making it easier to change the position of the placement plate according to actual conditions.

[0022] S5. By rotating the adjusting block 1, the bidirectional screw 1 is driven to rotate, so that the two sets of arc-shaped clamping blocks move toward each other to fix the circular biopsy gun;

[0023] S6. The threaded rod is driven to rotate by rotating the rocker, thereby changing the height of the lifting block, driving the extension plate and the support block to change synchronously, so that the height of the clamping component 1 is changed synchronously, making it convenient for the biopsy gun to enter the human body for sampling. The insertion position of the biopsy gun is conveniently displayed through the display and the supporting CT equipment to ensure the accuracy of the insertion position.

[0024] The present invention provides a pediatric tumor sampling device and a method of use thereof. It has the following beneficial effects:

[0025] (1) The sampling device for pediatric tumors and the method for using the same have a flexible and adjustable double clamping system that can adapt to biopsy guns of different shapes. By providing a clamping component 1 (arc-shaped clamping block) and a clamping component 2 (flat clamping block), circular and square biopsy guns can be accurately fixed respectively. By rotating the adjustment block 1 or the adjustment block 2, stable clamping of instruments of different specifications can be achieved, avoiding problems of loose fixation or inconvenient operation due to differences in the shape of the instruments, thereby significantly improving the versatility of the device.

[0026] (2) The sampling device for pediatric tumors and its usage method support multi-dimensional precise positioning adjustment, meeting the requirements of complex sampling scenarios. The carriage can move horizontally along the slide rail, the electric turntable realizes 360° angle adjustment, and the lifting component controls the height through a threaded rod and a rocking disc, enabling the biopsy gun position to be adjusted from multiple directions. This three-dimensional adjustment structure can adapt to different body positions of pediatric patients and tumor positions, solving the problems of single positioning and limited operation of traditional devices.

[0027] (3) The sampling device for pediatric tumors and its usage method are very convenient in operation and have a visual assistance function, improving the safety and efficiency of sampling. The electric slide table and the synchronous block are linked to control horizontal movement, and the display supported by a damping bearing can adjust the viewing angle as it moves, and the CT image is displayed in real time to assist in positioning. The quick-fixing design of the pressure plate and the threaded rod makes the carriage stable and non-shaking after positioning. Combined with the directional rod elastically connected by a spring, it ensures accurate locking after the placement plate is repositioned, significantly reducing the preparation time of medical staff. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0029] Figure 1 It is a schematic three-dimensional structure diagram of the whole of the present invention;

[0030] Figure 2 It is a schematic partial structure diagram of the lower synchronous block and the electric slide table of the present invention;

[0031] Figure 3 It is a schematic partial structure diagram of the connecting plate and the lifting block of the present invention;

[0032] Figure 4 It is a schematic partial sectional structure diagram of the extension plate and the support block of the present invention;

[0033] Figure 5 It is a schematic partial sectional structure diagram of the fixed column and the placement plate of the present invention;

[0034] Figure 6 It is a schematic partial sectional structure diagram of the second fixed block and the planar clamping block of the present invention;

[0035] Figure 7 It is an enlarged schematic diagram of A in the schematic structure diagram of the present invention.

[0036] Explanation of the attached reference numerals: 1. Bed body; 2. Slide carriage; 3. Electric turntable; 4. Lifting assembly; 401. Lifting frame base; 402. Threaded rod; 403. Rocking disc; 404. Lifting block; 405. Guide rod; 5. Extension plate; 6. Support block; 7. Fixed column; 8. Placing plate; 9. Clamping assembly one; 901. Fixed block one; 902. Bidirectional screw one; 903. Movable block one; 904. Arc-shaped clamping block; 905. Adjusting block one; 906. Guide rail one; 10. Clamping assembly two; 1001. Fixed block two; 1002. Bidirectional screw two; 1003. Movable block two; 1004. Flat clamping block; 1005. Adjusting block two; 1006. Guide rail two; 11. Sleeve plate; 12. Orientation rod; 13. Pushing block; 14. Heightening plate; 15. Slide rail; 16. Right-angle frame; 17. Threaded bar; 18. Adjusting disc; 19. Pressing disc; 20. Support rail; 21. Lower synchronizing block; 22. Connecting plate; 23. Electric slide table; 24. Pushing plate; 25. Upper synchronizing block; 27. Rotating column; 28. Rotating plate; 29. Placing rack; 30. Display.

[0037] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] Please refer to Figure 1 - Figure 7 The present invention provides a sampling device for pediatric tumors and its using method, including a bed body 1. A slide carriage 2 is arranged above the bed body 1. An electric turntable 3 is arranged on the slide carriage 2. The rotating end of the electric turntable 3 is fixedly connected with a lifting assembly 4. An extension plate 5 is arranged on the lifting assembly 4. A support block 6 is fixedly connected to the outer wall of the extension plate 5. The top of the support block 6 is rotatably connected with a placing plate 8. A clamping assembly one 9 is arranged on the placing plate 8. The clamping assembly one 9 includes a fixed block one 901. Fixed blocks one 901 are fixedly connected to both sides of the placing plate 8. A bidirectional screw one 902 is rotatably connected to the inner wall of the fixed block one 901. A movable block one 903 is threadedly connected to the outer wall of the bidirectional screw one 902. An arc-shaped clamping block 904 is fixedly connected to the top of the movable block one 903. Adjusting blocks one 905 are fixedly connected to both sides of the bidirectional screw one 902. A guide rail one 906 is fixedly connected to the top of the placing plate 8.

[0040] In an embodiment of the present invention, in order to facilitate the guidance of the movement of the movable block 903, the bottom of the movable block 903 is slidably connected to the outer wall of the guide rail 906, and the movement of the movable block 903 is guided by the guide rail 906. By rotating the adjustment block 905, the bidirectional screw 902 is driven to rotate, so that the two groups of arc-shaped clamping blocks 904 move toward each other, and the circular biopsy gun is fixed. A clamping assembly 10 is provided on the placement plate 8, and the clamping assembly 10 includes a fixed block 1001. The fixed blocks 1001 are fixedly connected to both sides of the placement plate 8, and the inner wall of the fixed block 1001 is rotatably connected to the bidirectional screw 1002.

[0041] Furthermore, the outer wall of the bidirectional screw 1002 is threadedly connected to the movable block 1003, the top of the movable block 1003 is fixedly connected to the planar clamping block 1004, and both sides of the bidirectional screw 1002 are fixedly connected to the adjusting block 1005. The top of the placement plate 8 is fixedly connected to the guide rail 1006, and the bottom of the movable block 1003 is slidably connected to the outer wall of the guide rail 1006. By rotating the adjusting block 1005, the bidirectional screw 1002 is driven to rotate, so that the two groups of planar clamping blocks 1004 move toward each other, thereby fixing the square biopsy gun.

[0042] Furthermore, the top of the support block 6 is fixedly connected to a fixing column 7, the inner wall of the placement plate 8 is rotatably connected to the outer wall of the fixing column 7, the outer wall of the fixing column 7 is fixedly connected to a sleeve plate 11, the inner wall of the sleeve plate 11 is slidably connected to an oriented rod 12, and the top of the oriented rod 12 is fixedly connected to a toggle block 13, the sleeve plate 11 and the toggle block 13 are elastically connected by a spring, and a positioning hole is provided on the placement plate 8, and there are two groups of positioning holes. The oriented rod 12 can slide into the positioning hole, and by moving the toggle block 13 upward, the oriented rod 12 is driven to leave the positioning hole, which makes it convenient for us to rotate the placement plate 8 180 degrees, and then release the toggle block 13, so that the oriented rod 12 is reinserted into another group of positioning holes, and the placement plate 8 is re-fixed, thereby completing the replacement work of the clamping component 1 9 and the clamping component 2 10, which is convenient for changing the position of the placement plate 8 according to actual conditions.

[0043] Furthermore, a heightening plate 14 is fixedly connected to the top of the bed 1, a slide rail 15 is fixedly connected to the top of the heightening plate 14, and the bottom of the slide 2 is slidably connected to the outer wall of the slide rail 15, and the movement of the slide 2 is guided by the slide rail 15.

[0044] Further, a right-angle frame 16 is fixedly connected to the outer wall of the carriage 2. A threaded rod 17 is threadedly connected to the inner wall of the right-angle frame 16. One end of the threaded rod 17 is fixedly connected to an adjustment disk 18, and the other end of the threaded rod 17 is fixedly connected to a pressing disk 19. By rotating the adjustment disk 18, the threaded rod 17 is driven to move, thereby changing the position of the pressing disk 19. When the pressing disk 19 is in close contact with the outer wall of the elevation plate 14, in cooperation with the right-angle frame 16, the position of the carriage 2 is fixed.

[0045] Further, a support rail 20 is fixedly connected to the outer wall of the carriage 2. A lower synchronizing block 21 is slidably connected to the outer wall of the support rail 20. A connecting plate 22 is fixedly connected to the side of the lower synchronizing block 21 away from the support rail 20. The outer wall of the electric turntable 3 is fixedly connected to the outer wall of the connecting plate 22. An electric sliding table 23 is fixedly connected to the top of the carriage 2. A pushing plate 24 is fixedly connected to the sliding end of the electric sliding table 23. An upper synchronizing block 25 is fixedly connected to the outer wall of the pushing plate 24. The side of the upper synchronizing block 25 away from the pushing plate 24 is fixedly connected to the outer wall of the connecting plate 22. By the movement of the sliding end of the electric sliding table 23, the pushing plate 24 is driven to move, and in cooperation with the upper synchronizing block 25, the connecting plate 22 is driven to move. Through the cooperation of the support rail 20 and the lower synchronizing block 21, auxiliary support work is carried out for the movement of the connecting plate 22 to ensure the stability of the movement of the connecting plate 22.

[0046] Further, a rotating column 27 is fixedly connected to the top of the carriage 2. The top of the rotating column 27 is rotatably connected to a rotating plate 28 through a damping bearing. The top of the rotating plate 28 is rotatably connected to a placement rack 29 through a damping bearing. A display 30 is placed on the top of the placement rack 29. By pushing the rotating plate 28 and the placement rack 29, it is convenient to change the orientation of the display 30, making it convenient for the display to face the doctor.

[0047] Further, the lifting assembly 4 includes a lifting frame base 401. A threaded rod 402 is rotatably connected to the inner wall of the lifting frame base 401. A rocking disk 403 is fixedly connected to the end face of the threaded rod 402. A lifting block 404 is threadedly connected to the outer wall of the threaded rod 402. A guide rod 405 is fixedly connected to the inner wall of the lifting frame base 401. The inner wall of the lifting block 404 is slidably connected to the outer wall of the guide rod 405. The outer wall of the extension plate 5 is fixedly connected to the outer wall of the lifting block 404. By rotating the rocking disk 403, the threaded rod 402 is driven to rotate, thereby changing the height of the lifting block 404 and synchronously changing the height of the extension plate 5. The movement of the lifting block 404 is guided by the guide rod 405.

[0048] It should be noted that the above-mentioned electrical components are all existing technology products. Technical personnel in this field select, install and complete the circuit debugging work according to the needs of use to ensure that all electrical appliances can work normally. The components are all universal standard parts or components known to technical personnel in this field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods, and no specific restrictions are made here.

[0049] The present invention provides a method for using a pediatric tumor sampling device, comprising the following steps:

[0050] S1. Rotate the adjusting disk 18 to drive the threaded rod 17 to rotate, so that the pressure plate 19 leaves the surface of the heightened plate 14, which facilitates us to move the carriage 2 to the vicinity of the human body sampling area. Reverse the pressure plate 19 to make it close to the heightened plate 14 again, completing the fixation of the carriage 2.

[0051] S2. Start the electric slide 23 to drive the push plate 24 to move, and cooperate with the synchronization block 25 to drive the connecting plate 22 to move synchronously, thereby changing the position of the electric turntable 3. By starting the electric turntable 3, the angle of the lifting component 4 can be changed, which drives the angle of the extension plate 5 to change, so that the angles of the components on it are changed synchronously;

[0052] S3. Determine the biopsy gun to be used based on the patient's condition. If the biopsy gun is round, use clamping assembly 1 (9) to secure the gun. If the biopsy gun is square, use clamping assembly 2 (10) to secure the gun.

[0053] S4. By moving the toggle block 13 upward, the orientation rod 12 is driven to leave the positioning hole, which makes it easier for us to rotate the placement plate 8 180 degrees. Then, the toggle block 13 is released, and the orientation rod 12 is reinserted into another set of positioning holes to re-fix the placement plate 8. This completes the replacement of the clamping assembly 1 9 and the clamping assembly 2 10, making it easier to change the position of the placement plate 8 according to actual conditions.

[0054] S5. By rotating the adjusting block 1 905, the bidirectional screw 1 902 is driven to rotate, causing the two sets of arc-shaped clamping blocks 904 to move toward each other, thereby fixing the circular biopsy gun;

[0055] S6. The threaded rod 402 is rotated by rotating the rocker 403, thereby changing the height of the lifting block 404, driving the extension plate 5 and the support block 6 to change synchronously, so that the height of the clamping assembly 9 is changed synchronously, making it easier for the biopsy gun to enter the human body for sampling. The insertion position of the biopsy gun is conveniently displayed through the display 30 and the supporting CT equipment to ensure the accuracy of the insertion position.

[0056] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A sampling device for pediatric tumors, comprising a bed body (1), characterized in that: A slide (2) is provided above the bed (1), an electric turntable (3) is provided on the slide (2), a rotating end of the electric turntable (3) is fixedly connected to a lifting assembly (4), an extension plate (5) is provided on the lifting assembly (4), an outer wall of the extension plate (5) is fixedly connected to a support block (6), the top of the support block (6) is rotatably connected to a placement plate (8), a clamping assembly (9) is provided on the placement plate (8), and the clamping assembly (9) comprises: A fixed block (901), both sides of the placement plate (8) are fixedly connected to the fixed block (901), and the inner wall of the fixed block (901) is rotatably connected to a bidirectional screw (902); A movable block (903), wherein the outer wall of the bidirectional screw (902) is threadedly connected to the movable block (903), and the top of the movable block (903) is fixedly connected to an arc-shaped clamping block (904); An adjusting block (905) is fixedly connected to both sides of the bidirectional screw (902), and a guide rail (906) is fixedly connected to the top of the placement plate (8).

2. The sampling device for pediatric tumors according to claim 1, wherein: The bottom of the movable block 1 (903) is slidably connected to the outer wall of the guide rail 1 (906), and a clamping assembly 2 (10) is provided on the placement plate (8). The clamping assembly 2 (10) includes a fixed block 2 (1001). Both sides of the placement plate (8) are fixedly connected to the fixed block 2 (1001), and the inner wall of the fixed block 2 (1001) is rotatably connected to a bidirectional screw 2 (1002).

3. The sampling device for pediatric tumors according to claim 2, characterized in that: The outer wall of the bidirectional screw rod 2 (1002) is threadedly connected to the movable block 2 (1003), the top of the movable block 2 (1003) is fixedly connected to the plane clamping block (1004), both sides of the bidirectional screw rod 2 (1002) are fixedly connected to the adjustment block 2 (1005), the top of the placement plate (8) is fixedly connected to the guide rail 2 (1006), and the bottom of the movable block 2 (1003) is slidably connected to the outer wall of the guide rail 2 (1006).

4. The sampling device for pediatric tumors according to claim 1, wherein: The top of the support block (6) is fixedly connected to a fixed column (7), the inner wall of the placement plate (8) is rotatably connected to the outer wall of the fixed column (7), the outer wall of the fixed column (7) is fixedly connected to a sleeve plate (11), the inner wall of the sleeve plate (11) is slidably connected to a directional rod (12), the top of the directional rod (12) is fixedly connected to a toggle block (13), the sleeve plate (11) and the toggle block (13) are elastically connected via a spring, and a positioning hole is provided on the placement plate (8).

5. The sampling device for pediatric tumors according to claim 1, wherein: The top of the bed body (1) is fixedly connected to a heightening plate (14), the top of the heightening plate (14) is fixedly connected to a slide rail (15), and the bottom of the slide frame (2) is slidably connected to the outer wall of the slide rail (15).

6. The sampling device for pediatric tumors according to claim 1, characterized in that: The outer wall of the carriage (2) is fixedly connected with a right-angle frame (16). The inner wall of the right-angle frame (16) is threadedly connected with a threaded rod (17). One end of the threaded rod (17) is fixedly connected with an adjusting disc (18), and the other end of the threaded rod (17) is fixedly connected with a pressing disc (19).

7. The sampling device for pediatric tumors according to claim 1, characterized in that: The outer wall of the carriage (2) is fixedly connected with a support rail (20). The outer wall of the support rail (20) is slidably connected with a lower synchronization block (21). One side of the lower synchronization block (21) away from the support rail (20) is fixedly connected with a connecting plate (22). The outer wall of the electric turntable (3) is fixedly connected to the outer wall of the connecting plate (22). The top of the carriage (2) is fixedly connected with an electric slide table (23). The sliding end of the electric slide table (23) is fixedly connected with a pushing plate (24). The outer wall of the pushing plate (24) is fixedly connected with an upper synchronization block (25). One side of the upper synchronization block (25) away from the pushing plate (24) is fixedly connected to the outer wall of the connecting plate (22).

8. The sampling device for pediatric tumors according to claim 1, characterized in that: The top of the carriage (2) is fixedly connected with a rotating column (27). The top of the rotating column (27) is rotatably connected with a rotating plate (28) through a damping bearing. The top of the rotating plate (28) is rotatably connected with a placement rack (29) through a damping bearing. A display (30) is placed on the top of the placement rack (29).

9. The sampling device for pediatric tumors according to claim 1, characterized in that: The lifting assembly (4) includes a lifting frame base (401). The inner wall of the lifting frame base (401) is rotatably connected with a threaded rod (402). The end face of the threaded rod (402) is fixedly connected with a rocking disc (403). The outer wall of the threaded rod (402) is threadedly connected with a lifting block (404). The inner wall of the lifting frame base (401) is fixedly connected with a guide rod (405). The inner wall of the lifting block (404) is slidably connected to the outer wall of the guide rod (405). The outer wall of the extension plate (5) is fixedly connected to the outer wall of the lifting block (404).

10. A method for using a sampling device for pediatric tumors, the sampling device for pediatric tumors according to any one of claims 1-9, characterized in that, It includes the following steps: S1. Drive the threaded rod (17) to rotate by rotating the adjusting disc (18), so that the pressing disc (19) leaves the surface of the heightening plate (14), which facilitates us to move the carriage (2) near the human body sampling area. By reversing, the pressing disc (19) is made to closely adhere to the heightening plate (14) again to complete the fixation of the carriage (2). S2. Drive the pushing plate (24) to move by starting the electric slide table (23), and cooperate with the upper synchronization block (25) to drive the connecting plate (22) to move synchronously, changing the position of the electric turntable (3). By starting the electric turntable (3), the angle of the lifting assembly (4) can be changed, driving the angle of the extension plate (5) to change, and synchronously changing the angles of the components above it. S3. Determine the biopsy gun to be used according to the patient's condition. If the outer shape of the biopsy gun is circular, we choose to use the clamping assembly one (9) to fix the biopsy gun. If the outer shape of the biopsy gun is square, we choose to use the clamping assembly two (10) to fix the biopsy gun. S4. By moving the toggle block (13) upward, the directional rod (12) is driven to leave the positioning hole, thereby facilitating the rotation of the placement plate (8) by 180 degrees. Then, the toggle block (13) is released, and the directional rod (12) is re-inserted into another set of positioning holes, and the placement plate (8) is fixed again, thereby completing the replacement work of the clamping component 1 (9) and the clamping component 2 (10), and facilitating the change of the position of the placement plate (8) according to actual conditions. S5. By rotating the adjusting block 1 (905), the bidirectional screw 1 (902) is driven to rotate, so that the two sets of arc-shaped clamping blocks (904) move toward each other to fix the circular biopsy gun; S6. The threaded rod (402) is rotated by rotating the rocker (403), thereby changing the height of the lifting block (404), driving the extension plate (5) and the support block (6) to change synchronously, so that the height of the clamping component (9) is changed synchronously, making it easier for the biopsy gun to enter the human body and perform sampling. The insertion position of the biopsy gun is conveniently displayed through the display (30) and the matching CT equipment to ensure the accuracy of the insertion position.