Puncture navigation fixator for pain department

By using a motor-driven gear train and hydraulic system to hold the patient, combined with damping and ratchet design, the problem of vibration of pain management puncture equipment at the patient's spine has been solved, achieving stability and accuracy in the puncture process.

CN121647780APending Publication Date: 2026-03-13Affiliated Hospital of Shijiazhuang Medical College
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-24
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing pain management puncture equipment is prone to shaking or wobbling when performing punctures on the patient's spine due to respiratory movements, causing inconvenience for medical staff.

Method used

A pain management puncture navigation fixator is used, which uses a motor-driven gear column to move an arc-shaped clamping column to close and hold the patient. Combined with a hydraulic system and clamping block design, it increases the contact area and stability with the patient's body, and uses damping and ratchet to prevent positional displacement and shaking.

Benefits of technology

This ensures the stability and accuracy of the equipment during the puncture process, reduces equipment vibration and shaking, and improves the safety and efficiency of the operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of medical equipment, in particular to a puncture navigation fixator for the pain department, which comprises a fixing plate, a plurality of arc-shaped clamping columns are slidably connected to the fixing plate, a fixing rod is fixedly connected between the two arc-shaped clamping columns, a first sealing rod is fixedly connected to the fixing rod, and a second sealing rod is fixedly connected to the fixing rod. A first hydraulic bin is fixedly installed in the fixing plate, the first sealing rod is slidably connected with the interior of the first hydraulic bin, and the first hydraulic bin communicates with a plurality of first conveying pipes. One end of each fixing rod is fixedly connected with a limiting rod, each limiting rod is slidably connected with a rack, one end of each rack is fixedly connected with a first spring, the other end of each first spring is fixedly connected with one side of the corresponding fixing rod, and the other end of each rack is fixedly connected with a second sealing rod. In the using process, the device can be stably fixed to the body of a patient through the clamping blocks.
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Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a puncture navigation fixation device for pain management. Background Technology

[0002] The development of a puncture navigation and fixation device for pain management stems primarily from the growing clinical demand for precise and minimally invasive treatments and the limitations of traditional puncture methods. With the increasing prevalence of minimally invasive interventional treatments in pain management (such as nerve blocks, discectomy, and tumor intervention), traditional punctures, relying on two-dimensional imaging and manual operation, suffer from inaccurate positioning, significant human error, prolonged procedure time, and high risk of complications. This device, through its mechanical structure design, assists in stabilizing the puncture needle, ensuring stable insertion at the predetermined location during patient punctures. This achieves precision in the puncture process, promoting a shift in pain management from "experience-driven" to "technology-driven" approaches, and improving treatment safety and efficiency.

[0003] When using existing equipment to perform punctures on a patient's spine, the chest and abdomen expand outward during breathing, causing the equipment to shake or sway along with the movement of the chest and abdomen, which inconveniences medical staff. Summary of the Invention

[0004] The purpose of this invention is to provide a puncture navigation fixation device for pain management, in order to solve the problem mentioned in the background art that existing devices may vibrate or shake during the maintenance and repair of the device when performing punctures on the patient's spine, causing inconvenience to medical staff.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a puncture navigation fixation device for pain management, comprising a fixation plate, a plurality of arc-shaped clamping columns slidably connected to the fixation plate, a fixation rod fixedly connected between two of the arc-shaped clamping columns, a first sealing rod fixedly connected to the fixation rod, a first hydraulic chamber fixedly installed inside the fixation plate, the first sealing rod slidably connected to the inside of the first hydraulic chamber, and a plurality of first delivery pipes connected to the first hydraulic chamber; Each of the fixed rods has a limiting rod fixedly connected to one end, and a rack is slidably connected to each limiting rod. A first spring is fixedly connected to one end of each rack, and the other end of the first spring is fixedly connected to one side of the fixed rod. A second sealing rod is fixedly connected to the other end of the rack, and a second hydraulic chamber is slidably connected to the second sealing rod. The second hydraulic chamber is fixedly installed at one end of the limiting rod, and the second hydraulic chamber is connected to multiple second conveying pipes.

[0006] Furthermore, a gear post is rotatably connected inside the fixed plate, and the gear post is located between the two racks; The fixed plate is slidably connected with sliding pinholes.

[0007] Furthermore, a clamping block is rotatably connected to one end of the arc-shaped clamping column, and an arc-shaped hydraulic chamber is provided at the pivot of the clamping block and the arc-shaped clamping column. The arc-shaped hydraulic chamber is located inside the arc-shaped clamping column, and the second conveying pipe is connected to the arc-shaped hydraulic chamber. An arc-shaped slider is fixedly connected to the pivot of the clamping block, and the arc-shaped slider is slidably connected to the interior of the arc-shaped hydraulic chamber.

[0008] Furthermore, the arc-shaped clamping column is provided with an inclined sliding groove and an arc-shaped sliding groove, and the inclined sliding groove and the arc-shaped sliding groove are connected.

[0009] Furthermore, the clamping block has an internal sliding connection to an abutment block, one end of which is fixedly connected to a sliding post. The sliding post is slidably connected to the inclined slide groove and the arc-shaped slide groove. The clamping block has a straight slide groove, and the sliding post is slidably connected to the straight slide groove.

[0010] Furthermore, a pair of sliding blocks are slidably connected inside the clamping block, and a resisting inclined block is fixedly connected to one side of the sliding block. The resisting inclined block is used to abut against the resisting block, and a second spring is fixedly connected between the two sliding blocks.

[0011] Furthermore, a sealing tube is provided inside the fixing plate, the sealing tube is connected to the first conveying tube, a third sealing rod is slidably connected inside the sealing tube, a round abutment block is slidably connected to one end of the third sealing rod, a third spring is provided between the round abutment block and the third sealing rod, and an inclined abutment rod is slidably connected inside the third sealing rod.

[0012] Furthermore, a sliding sealing block is provided between the sealing tube and the first conveying tube. The sliding sealing block is slidably connected to the inside of the fixed plate. A limiting inclined block is fixedly connected to one side of the sliding sealing block. A fourth spring is provided between the limiting inclined block and the fixed plate.

[0013] Furthermore, a limiting groove is provided inside the fixed plate, and a limiting slider is slidably connected inside the limiting groove. The limiting slider is slidably connected to the inclined rod. A limiting ball is fixedly connected to one end of the limiting slider. The limiting ball abuts against one side of the limiting inclined block. A fifth spring is fixedly connected between the limiting slider and the fixed plate.

[0014] Furthermore, a ratchet is fixedly connected to the gear post, a sliding pawl is provided on one side of the ratchet, the sliding pawl is slidably connected to the fixed plate, a sixth spring is provided on one side of the sliding pawl, the sixth spring is located inside the fixed plate, and a motor is fixedly connected to one end of the gear post, the motor is fixedly mounted on the fixed plate.

[0015] The technical solution provided by this invention has the following advantages compared with the known prior art: I. This invention uses a motor to drive a gear column to rotate, which in turn pulls the arc-shaped clamping columns to contract, allowing each arc-shaped clamping column to clamp tightly onto the patient. This design prevents shaking during puncture. II. In this invention, the hydraulic oil in the first hydraulic chamber is squeezed by the first sealing rod and then squeezed into the sealing tube. This allows the third sealing rod to drive the round abutment block to support the patient's back, making the fixation plate more stable on the patient's back, increasing the contact area between the patient's back and the fixation plate, and further increasing the stability of the device. Third, this invention rotates the clamping block so that it can clamp onto the patient's body. During the rotation, the sliding block slides out of the clamping block, increasing the contact area with the patient and further increasing the stability of the device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the lower structure of the present invention; Figure 3 This is a schematic cross-sectional view of the fixing plate structure of the present invention; Figure 4 This is a schematic diagram of the arc-shaped clamping column structure of the present invention; Figure 5 This is a schematic diagram of the resisting inclined block structure of the present invention; Figure 6 This is a schematic cross-sectional view of the clamping block structure of the present invention; Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle.

[0018] Figure 8 This is a schematic diagram of the arc-shaped groove structure of the present invention; Figure 9 This is a schematic diagram of the second spring structure of the present invention; Figure 10 This is a schematic diagram of the sealing tube structure of the present invention; Figure 11 For the present invention Figure 10 Enlarged structural diagram at point B; Figure 12 For the present invention Figure 10 Enlarged structural diagram at point C; Figure 13 This is a schematic diagram of the ratchet structure of the present invention.

[0019] In the diagram: 1. Fixing plate; 2. Arc-shaped clamping post; 3. Fixing rod; 4. First sealing rod; 5. First hydraulic chamber; 6. First conveying pipe; 7. Limiting rod; 8. Rack; 9. First spring; 10. Second sealing rod; 11. Second hydraulic chamber; 12. Second conveying pipe; 13. Gear post; 14. Sliding pinhole; 15. Clamping block; 16. Arc-shaped hydraulic chamber; 17. Arc-shaped slider; 18. Inclined slide groove; 19. Arc-shaped slide groove; 20. Abutment block; 21. 21. Sliding column; 22. Straight slide groove; 23. Sliding block; 24. Abutting inclined block; 25. Second spring; 26. Sealing tube; 27. Third sealing rod; 28. Round abutment block; 29. ​​Third spring; 30. Inclined abutment rod; 31. Sliding sealing block; 32. Restricting inclined block; 33. Fourth spring; 34. Restricting slide groove; 35. Restricting slider; 36. Restricting ball; 37. Fifth spring; 38. Ratchet; 39. Sliding pawl; 40. Sixth spring; 41. Motor. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] The present invention will be further described below with reference to embodiments.

[0022] Example: A puncture navigation fixation device for pain management, such as... Figures 1-13As shown, the device includes a fixed plate 1, on which multiple arc-shaped clamping columns 2 are slidably connected. Through the design of the multiple arc-shaped clamping columns 2, the entire device can be clamped onto the patient's body. A fixed rod 3 is fixedly connected between two arc-shaped clamping columns 2. A first sealing rod 4 is fixedly connected to the fixed rod 3. A first hydraulic chamber 5 is fixedly installed inside the fixed plate 1. The first sealing rod 4 is slidably connected to the inside of the first hydraulic chamber 5. Multiple first delivery pipes 6 are connected to the first hydraulic chamber 5. Through the design of the first sealing rod 4 and the first hydraulic chamber 5, when the first sealing rod 4 slides inside the first hydraulic chamber 5, it can squeeze the hydraulic oil in the first hydraulic chamber 5 into the first delivery pipes 6, or it can draw the hydraulic oil in the first delivery pipes 6 into the first hydraulic chamber 5. One end of each fixed rod 3 is fixedly connected to a limiting rod 7. Each limiting rod 7 is slidably connected to a rack 8. One end of the rack 8 is fixedly connected to a first spring 9. The other end of the first spring 9 is fixedly connected to one side of the fixed rod 3. The other end of the rack 8 is fixedly connected to a second sealing rod 10. The second sealing rod 10 is slidably connected to a second hydraulic chamber 11. The second hydraulic chamber 11 is fixedly installed on one end of the limiting rod 7. The second hydraulic chamber 11 is connected to multiple second conveying pipes 12.

[0023] A gear column 13 is rotatably connected inside the fixed plate 1, and the gear column 13 is located between two racks 8; The rotation of the gear column 13 causes the racks 8 on both sides of the gear column 13 to slide. The sliding of the racks 8 causes the first spring 9, the limiting rod 7, the fixing rod 3 and the arc-shaped clamping column 2 to slide in opposite directions. The sliding of the arc-shaped clamping column 2 in opposite directions allows the arc-shaped clamping column 2 to clamp the patient's body. It should be noted that the first spring 9 will not deform before the arc-shaped clamping column 2 clamps the patient.

[0024] A sliding needle hole 14 is slidably connected to the fixed plate 1. It should be noted that the sliding needle hole 14 has a certain damping, so that the position of the sliding needle hole 14 will not shift when the patient is punctured. This device is existing technology and professionals in this field can choose freely.

[0025] One end of the arc-shaped clamping column 2 is rotatably connected to a clamping block 15. An arc-shaped hydraulic chamber 16 is provided at the pivot of the clamping block 15 and the arc-shaped clamping column 2. The arc-shaped hydraulic chamber 16 is located inside the arc-shaped clamping column 2. The second delivery pipe 12 is connected to the arc-shaped hydraulic chamber 16. An arc-shaped slider 17 is fixedly connected to the pivot of the clamping block 15. The arc-shaped slider 17 is slidably connected to the inside of the arc-shaped hydraulic chamber 16. When the hydraulic oil enters the arc-shaped hydraulic chamber 16 through the second delivery pipe 12, it can squeeze the arc-shaped slider 17, so that the arc-shaped slider 17 can drive the clamping block 15 to rotate together, thereby clamping the patient's body through the clamping block 15.

[0026] An inclined slide groove 18 and an arc-shaped slide groove 19 are provided on the arc-shaped clamping column 2, and the inclined slide groove 18 and the arc-shaped slide groove 19 are connected.

[0027] An abutment block 20 is slidably connected inside the clamping block 15. A sliding post 21 is fixedly connected to one end of the abutment block 20. The sliding post 21 is slidably connected to the inclined slide groove 18 and the arc-shaped slide groove 19. A straight slide groove 22 is provided on the clamping block 15, and the sliding post 21 is slidably connected to the straight slide groove 22. (See...) Figure 5 By designing the inclined slide 18, the arc slide 19 and the straight slide 22, the positions of the sliding column 21 and the abutment block 20 can be guided, so that the sliding column 21 can drive the abutment block 20 to slide up and down.

[0028] A pair of sliding blocks 23 are slidably connected inside the clamping block 15. A retaining inclined block 24 is fixedly connected to one side of the sliding block 23. The retaining inclined block 24 is used to abut against the abutting block 20. A second spring 25 is fixedly connected between the two sliding blocks 23. Through the abutting block 20 against the retaining inclined block 24, the retaining inclined block 24 can drive the sliding block 23 to slide outward of the clamping block 15. This design can increase the contact area with the patient's body, thereby more firmly fixing the device to the patient's body.

[0029] The fixing plate 1 has a sealing tube 26 inside, which is connected to the first delivery tube 6. A third sealing rod 27 is slidably connected inside the sealing tube 26. A round abutment block 28 is slidably connected to one end of the third sealing rod 27. A third spring 29 is provided between the round abutment block 28 and the third sealing rod 27. An inclined abutment rod 30 is slidably connected inside the third sealing rod 27. With this design, when the fixing plate 1 is placed on the patient's back, due to the curve of the back, some parts of the fixing plate 1 will not be in contact with the patient. This allows the third sealing rod 27 to drive the round abutment block 28 to abut against the patient's body, further increasing the contact area with the patient's back. This allows the puncture needle to be punctured more stably during subsequent punctures.

[0030] A sliding sealing block 31 is provided between the sealing pipe 26 and the first conveying pipe 6. The sliding sealing block 31 is slidably connected to the inside of the fixed plate 1. A limiting inclined block 32 is fixedly connected to one side of the sliding sealing block 31. A fourth spring 33 is provided between the limiting inclined block 32 and the fixed plate 1. Through the design of the sliding sealing block 31, the sealing pipe 26 can be blocked, so that the hydraulic oil in the first conveying pipe 6 cannot continue to be conveyed into the sealing pipe 26.

[0031] The fixed plate 1 has a limiting groove 34 inside, and a limiting slider 35 is slidably connected inside the limiting groove 34. The limiting groove 34 can limit the position of the limiting slider 35 and prevent the limiting slider 35 from shifting during the sliding process. The limiting slider 35 is slidably connected to the inclined rod 30. A limiting ball 36 is fixedly connected to one end of the limiting slider 35. The limiting ball 36 abuts against one side of the limiting inclined block 32. A fifth spring 37 is fixedly connected between the limiting slider 35 and the fixed plate 1. The limiting ball 36 can reduce the friction between the limiting ball 36 and the limiting inclined block 32.

[0032] A ratchet 38 is fixedly connected to the gear column 13. A sliding pawl 39 is provided on one side of the ratchet 38. The design of the ratchet 38 and the sliding pawl 39 can prevent the gear column 13 from rotating and prevent the arc-shaped clamping column 2 from loosening after clamping the patient's body. The sliding pawl 39 is slidably connected to the fixing plate 1. A sixth spring 40 is provided on one side of the sliding pawl 39 and is located inside the fixing plate 1. A motor 41 is fixedly connected to one end of the gear column 13. The motor 41 is fixedly installed on the fixing plate 1. The design of the motor 41 can drive the gear column 13 to rotate and provide power to the device. It should be noted that the motor 41 is an ultrasonic motor. This design can minimize vibration and will not affect the fixation of the position. The motor is existing technology and professionals in this field can freely choose it.

[0033] When using the device, the fixing plate 1 needs to be placed on the patient's back so that the sliding needle hole 14 can be aligned with the spine to be punctured. The sliding needle hole 14 can be finely adjusted, and the damping design can prevent the position of the sliding needle hole 14 from shifting. Then, the motor 41 is started, which drives the gear column 13 to rotate. The rotation of the gear column 13 can drive the racks 8 on both sides of the gear column 13 to slide towards each other. The sliding of the racks 8 pulls the first spring 9, the limiting rod 7, the fixing rod 3 and the arc-shaped clamping column 2, so that the arc-shaped clamping columns 2 on both sides can be brought together in the middle, thereby clamping the device on the patient's body. As the fixed rod 3 slides towards the center, it causes the first sealing rod 4 to squeeze the hydraulic oil in the first hydraulic chamber 5, allowing the hydraulic oil in the first hydraulic chamber 5 to flow into the first delivery pipe 6. Simultaneously, the hydraulic oil in the first delivery pipe 6 is delivered into the sealing pipe 26, enabling the third sealing rod 27 to slide inside the sealing pipe 26. While the third sealing rod 27 slides, it also causes the round abutment block 28 to slide outwards from the fixed plate 1. Figure 12When the round abutment 28 comes into contact with the patient's body, the round abutment 28 can slide into the interior of the third sealing rod 27. Through the sliding of the round abutment 28, the inclined surface of the inclined abutment 30 is compressed, allowing the inclined abutment 30 to slide to the left. Figure 11 When the inclined rod 30 slides to the left, it can drive the limiting slider 35 and the limiting ball 36 to slide together. While the limiting slider 35 slides to the left, it can squeeze the fifth spring 37, causing the fifth spring 37 to deform. While the limiting ball 36 slides to the left, it will release the limiting inclined block 32. Under the tension of the fourth spring 33, the limiting inclined block 32 will drive the sliding sealing block 31 to seal the sealing tube 26, so that the hydraulic oil will not continue to be delivered into the sealing tube 26. At the same time, the third sealing rod 27 will not continue to drive the round abutment block 28 to slide, preventing further compression of the patient's back. Through this design, the lower part of the fixing plate 1 can be supported to prevent the fixing plate 1 from tilting or shaking.

[0034] After the arc-shaped clamping column 2 clamps the patient's back, the gear column 13 continues to rotate, preventing the arc-shaped clamping column 2, the fixing rod 3, and the limiting rod 7 from sliding further towards the center. This allows the rack 8 to continue sliding on the limiting rod 7, while simultaneously pulling the first spring 9, causing it to deform. As the rack 8 slides on the limiting rod 7, it also drives the second sealing rod 10 to slide. The sliding of the second sealing rod 10 compresses the hydraulic oil in the second hydraulic chamber 11, forcing it into the second delivery pipe 12. The hydraulic oil in the second delivery pipe 12 compresses the arc-shaped slider 17 in the arc-shaped hydraulic chamber 16, causing the arc-shaped slider 17 to rotate the clamping block 15. As the clamping block 15 rotates, it can drive the abutting block 20 and the sliding column 21 to slide together, allowing the sliding column 21 to slide within the inclined groove 18. The inclined groove 18 and the straight groove 22 guide the sliding column 21. Figure 5 This allows the sliding column 21 to drive the contact block 20 to slide downwards. As the contact block 20 slides downwards, it will abut against the inclined blocks 24 on both sides, causing the inclined blocks 24 to drive the sliding block 23 to slide outwards from the clamping block 15. This design can increase the contact area between the clamping block 15 and the patient, preventing the device from shaking or wobbling during subsequent puncture procedures. As hydraulic oil continues to be supplied into the arc-shaped hydraulic chamber 16, the clamping block 15 rotates continuously. At this time, the sliding column 21 slides from the inclined slide groove 18 into the arc-shaped slide groove 19, which can prevent the clamping block 15 from getting stuck during rotation. The rotation of the clamping block 15 can further clamp the patient's body and further increase the stability of the device. After the position of the fixing plate 1 is fixed and stable, the motor 41 stops running. Fine adjustments can be made through the sliding needle hole 14 so that the sliding needle hole 14 can be aligned with the position to be punctured, which facilitates subsequent puncture of the patient.

[0035] After the puncture is completed, simply pull the sliding pawl 39 to release the ratchet 38, allowing the gear column 13 to reverse. This reversal causes the racks 8 on both sides of the gear column 13 to slide in opposite directions. The sliding of the racks 8 pulls the second sealing rod 10 to slide inside the second hydraulic chamber 11. This design allows the second hydraulic chamber 11 to draw hydraulic oil from the second delivery pipe 12. The drawing of hydraulic oil causes the arc-shaped slider 17 to slide inside the arc-shaped hydraulic chamber 16. The sliding of the arc-shaped slider 17 causes the clamping block 15 to rotate, separating it from the patient's body. The reversal of the clamping block 15 causes the sliding column 21 to slide from the arc-shaped groove 19 into the inclined groove 18. The inclined groove 18 guides the position of the sliding column 21. Figure 5 This allows the sliding column 21 to drive the abutment block 20 to slide upwards, causing one side of the abutment block 20 to slide out from the abutted inclined block 24. At the same time, under the action of the second spring 25, the sliding block 23 can be pulled back into the clamping block 15.

[0036] It should be noted that when the rack 8 first starts to slide, the first spring 9 will pull the second sealing rod 10 to slide in the second hydraulic chamber 11. Even if the limiting rod 7 slides together, it will not affect the removal of the device from the patient.

[0037] See Figure 3 Subsequently, as the gear column 13 continues to rotate, the rack 8 will cause the limiting rod 7, the fixing rod 3, the first sealing rod 4 and the arc-shaped clamping column 2 to expand outward together, so that the arc-shaped clamping column 2 can release the clamping on the patient's back. While the first sealing rod 4 slides, it will draw in the hydraulic oil in the first delivery pipe 6. By drawing in the hydraulic oil, the sliding sealing block 31 will be drawn upward. By the upward sliding of the limiting inclined block 32, it will come into contact with the limiting ball 36, so that the limiting ball 36 can lock the limiting inclined block 32, so that the sliding sealing block 31 can release the sealing pipe 26. It should be noted that, through the design of the fifth spring 37, when the sliding sealing block 31 is pulled, the limiting inclined block 32 can slide upward together with the sliding sealing block 31. At the same time, under the action of the fifth spring 37 on the limiting slider 35, the limiting ball 36 is driven to be stuck at the limiting inclined block 32, so as to continue to limit the position of the sliding sealing block 31 and facilitate the next use.

[0038] It should be noted that after the clamping block 15 returns to its correct position and the arc-shaped clamping column 2 releases its grip on the patient, the fixing plate 1 can be removed from the patient's back. When the fifth spring 37 pushes the limiting slider 35 to slide, it can simultaneously drive the inclined abutment rod 30 to slide together. After the fixing plate 1 is removed from the patient's back, the round abutment block 28 will slide back to its initial position under the action of the third spring 29, so that the inclined surface at one end of the inclined abutment rod 30 will no longer be resisted by the round abutment block 28.

[0039] In this embodiment: when puncturing the patient, the sealing tube 26, the third sealing rod 27 and the round abutment block 28 can come into contact with the patient's back. By contacting the patient's back, the fixation plate 1 is supported, preventing the fixation plate 1 from shaking or wobbling during subsequent spinal punctures. At the same time, the arc-shaped clamping column 2 can clamp the patient's back, making the fixation plate 1 more stably fixed to the patient. After the arc-shaped clamping column 2 clamps the patient, it can be clamped on the patient through the design of the clamping block 15, the arc-shaped hydraulic chamber 16 and the arc-shaped slider 17. At the same time, after the sliding block 23 inside the clamping block 15 slides out, it can increase the contact area with the patient, so that the fixing plate 1 can be placed more stably on the patient.

[0040] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A puncture navigation fixation device for pain management, comprising a fixation plate (1), characterized in that: Multiple arc-shaped clamping columns (2) are slidably connected to the fixed plate (1), and a fixed rod (3) is fixedly connected between two arc-shaped clamping columns (2). A first sealing rod (4) is fixedly connected to the fixed rod (3). A first hydraulic chamber (5) is fixedly installed inside the fixed plate (1). The first sealing rod (4) is slidably connected to the inside of the first hydraulic chamber (5). Multiple first conveying pipes (6) are connected to the first hydraulic chamber (5). One end of each fixed rod (3) is fixedly connected to a limiting rod (7), and each limiting rod (7) is slidably connected to a rack (8). One end of each rack (8) is fixedly connected to a first spring (9), and the other end of the first spring (9) is fixedly connected to one side of the fixed rod (3). The other end of the rack (8) is fixedly connected to a second sealing rod (10), and the second sealing rod (10) is slidably connected to a second hydraulic chamber (11). The second hydraulic chamber (11) is fixedly installed at one end of the limiting rod (7), and the second hydraulic chamber (11) is connected to multiple second delivery pipes (12).

2. The puncture navigation fixation device for pain management according to claim 1, characterized in that: The fixed plate (1) is rotatably connected to a gear column (13), which is located between the two racks (8); The fixed plate (1) is slidably connected with a sliding pinhole (14).

3. The puncture navigation fixation device for pain management according to claim 1, characterized in that: One end of the arc-shaped clamping column (2) is rotatably connected to a clamping block (15). An arc-shaped hydraulic chamber (16) is provided at the pivot of the clamping block (15) and the arc-shaped clamping column (2). The arc-shaped hydraulic chamber (16) is located inside the arc-shaped clamping column (2). The second conveying pipe (12) is connected to the arc-shaped hydraulic chamber (16). An arc-shaped slider (17) is fixedly connected to the pivot of the clamping block (15). The arc-shaped slider (17) is slidably connected to the inside of the arc-shaped hydraulic chamber (16).

4. The puncture navigation fixation device for pain management according to claim 3, characterized in that: The arc-shaped clamp (2) is provided with an inclined slide groove (18) and an arc-shaped slide groove (19), and the inclined slide groove (18) and the arc-shaped slide groove (19) are connected.

5. A puncture navigation fixation device for pain management according to claim 4, characterized in that: The clamping block (15) has an internal sliding connection to an abutment block (20), and one end of the abutment block (20) is fixedly connected to a sliding column (21). The sliding column (21) is slidably connected to the inclined slide groove (18) and the arc-shaped slide groove (19). The clamping block (15) has a straight slide groove (22), and the sliding column (21) is slidably connected to the straight slide groove (22).

6. A puncture navigation fixation device for pain management according to claim 5, characterized in that: The clamping block (15) has a pair of sliding blocks (23) slidably connected inside. A retaining inclined block (24) is fixedly connected to one side of the sliding block (23). The retaining inclined block (24) is used to abut against the resisting block (20). A second spring (25) is fixedly connected between the two sliding blocks (23).

7. The puncture navigation fixation device for pain management according to claim 1, characterized in that: The fixed plate (1) has a sealing tube (26) inside, which is connected to the first conveying pipe (6). A third sealing rod (27) is slidably connected inside the sealing tube (26). A round abutment block (28) is slidably connected to one end of the third sealing rod (27). A third spring (29) is provided between the round abutment block (28) and the third sealing rod (27). An inclined abutment rod (30) is slidably connected inside the third sealing rod (27).

8. A puncture navigation fixation device for pain management according to claim 7, characterized in that: A sliding sealing block (31) is provided between the sealing tube (26) and the first conveying tube (6). The sliding sealing block (31) is slidably connected to the inside of the fixed plate (1). A limiting inclined block (32) is fixedly connected to one side of the sliding sealing block (31). A fourth spring (33) is provided between the limiting inclined block (32) and the fixed plate (1).

9. A puncture navigation fixation device for pain management according to claim 8, characterized in that: The fixed plate (1) has a limiting groove (34) inside, and a limiting slider (35) is slidably connected inside the limiting groove (34). The limiting slider (35) is slidably connected to the inclined rod (30). A limiting ball (36) is fixedly connected to one end of the limiting slider (35). The limiting ball (36) abuts against one side of the limiting inclined block (32). A fifth spring (37) is fixedly connected between the limiting slider (35) and the fixed plate (1).

10. A puncture navigation fixation device for pain management according to claim 2, characterized in that: A ratchet (38) is fixedly connected to the gear column (13). A sliding pawl (39) is provided on one side of the ratchet (38). The sliding pawl (39) is slidably connected to the fixed plate (1). A sixth spring (40) is provided on one side of the sliding pawl (39). The sixth spring (40) is located inside the fixed plate (1). A motor (41) is fixedly connected to one end of the gear column (13). The motor (41) is fixedly installed on the fixed plate (1).