Lateral position placing device for lumbar puncture

By designing a lateral decubitus positioning device for lumbar puncture, and utilizing automated adjustment and stabilizing components, the problems of positional deviation and insufficient support stability in traditional lateral decubitus positioning methods are solved, thereby improving the success rate of lumbar puncture and patient comfort.

CN224085630UActive Publication Date: 2026-04-07HUAXIAN HOSPITAL OF TRADITIONAL CHINESE MEDICINE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

In current lumbar puncture procedures, the traditional lateral decubitus position relies on manual adjustment and fixation, which leads to fatigue of medical staff, positional deviation, and a high rate of puncture failure. In addition, the support stability of ordinary fixation pads is insufficient, which is especially unsuitable for elderly patients.

Method used

A lateral decubitus positioning device for lumbar puncture was designed, which includes a lateral movement device and a height adjustment device. Utilizing components such as a drive cylinder, hinge seat, and anti-slip rubber pad, it achieves automated adjustment and stable fixation, ensuring the perpendicularity of the patient's spine to the bed surface and reducing displacement.

Benefits of technology

It improves the stability and comfort of patient positioning, reduces the puncture failure rate, reduces the operational fatigue of medical staff, and adapts to the needs of different patients.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a lumbar puncture lateral position placing device which comprises a sickbed, two sets of transverse moving devices and height adjusting devices are arranged on the two sides of the sickbed, each height adjusting device comprises a supporting sleeve and a supporting rod, clamping grooves are formed in the supporting rods, clamping blocks are symmetrically arranged in the clamping grooves, clamping rods are arranged on the clamping blocks, and the clamping rods are arranged on the clamping blocks. Clamping holes matched with the clamping rods are formed in the supporting sleeves, adjusting blocks are arranged in the clamping grooves, adjusting rods are arranged on the two sides of the adjusting blocks, inclined grooves are formed in the clamping blocks, driving air cylinders are arranged on one sides of the supporting rods, hinge seats are arranged at the output ends of the driving air cylinders, hinge shafts are arranged on the hinge seats, and extrusion plates are arranged on the hinge shafts; the height of the squeezing plates is adjusted through the height adjusting device, the positions of the squeezing plates on a sickbed are conveniently adjusted through the transverse moving device, one squeezing plate is located on the upper portion of the back of a patient, the other squeezing plate is located on the curled shank of the patient, then the lateral position is conveniently fixed, and the patient is prevented from moving.
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Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field more specifically, it relates to a lumbar puncture lateral decubitus position placing device. BACKGROUND

[0002] Lumbar puncture is mainly used for diagnosing and treating certain diseases, such as central nervous system inflammatory diseases, tumor diseases, etc., in the operation process, the patient needs to lie on the hard board bed, take off the pillow, back to the bed edge, spread the rubber towel, treatment towel, head to the chest before bending, both hands embrace the knee, both knees bend to the abdomen, the waist back is as far as possible arch, make the intervertebral space widen, be favorable to puncture, puncture site generally takes 3~4 intervertebral space, both sides of the spine ridge line of the line as the 3rd intervertebral space.

[0003] In the prior art, the traditional lateral decubitus position placing mode has significant technical defects: first, the existing method relies on manual adjustment and fixation, and medical staff need to continuously exert force to maintain the perpendicularity of the patient's spine and the bed surface, which is easy to cause fatigue after 30 minutes of operation, resulting in body position deviation and increased puncture failure rate, second, the support stability of ordinary fixed pads is insufficient, and an average displacement of 1.8mm is generated when the puncture needle enters, and most of the elderly patients cannot independently maintain the hip flexion and knee flexion position due to joint stiffness. UTILITY MODEL CONTENT

[0004] (I) technical problem solved

[0005] In view of the problems existing in the prior art, the utility model provides a lumbar puncture lateral decubitus position placing device to solve the technical problems mentioned in the background art.

[0006] (II) technical scheme

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a lumbar puncture lateral decubitus position placing device, including sickbed, both sides of the sickbed are provided with two groups of transverse moving device and height adjusting device, the height adjusting device includes support sleeve and support rod, the support rod is equipped with the clamping groove, the clamping groove is equipped with the clamping block in the symmetry, the clamping block is equipped with the clamping rod, the support sleeve is provided with the clamping hole that cooperates with the clamping rod, the clamping groove is equipped with the adjusting block, the adjusting block is equipped with the adjusting rod on both sides, the clamping block is provided with the inclined slot that cooperates with the adjusting rod, one side of the support rod is equipped with the drive cylinder, the output end of the drive cylinder is equipped with the hinged seat, the hinged seat is equipped with the hinged shaft, the hinged shaft is equipped with the extrusion plate.

[0008] The utility model further sets up, the transverse moving device includes the moving groove, the moving groove is symmetrically set up in both sides of sickbed, the moving block is equipped with the sliding in the moving groove, and the moving direction of the extrusion plate is limited.

[0009] The utility model further provides for, rotatingly be equipped with moving screw rod in the mobile groove, the moving screw rod with the mobile block screw connection, one side of the moving screw rod is equipped with the moving handle, convenient for driving the mobile block transverse movement.

[0010] The utility model further provides for, being equipped with the adjusting slide rod on the adjusting block, being equipped with the adjusting handle on the adjusting slide rod, convenient for the position of moving adjusting block.

[0011] The utility model further provides for, being equipped with the adjusting groove on the support rod, the adjusting slide rod is equipped with the adjusting plate in the adjusting groove, the top of the adjusting plate with the adjusting groove between is equipped with the adjusting spring, convenient for driving adjusting slide rod and move reset, make the position stability of adjusting rod and the clamping rod.

[0012] The utility model further provides for, being equipped with the limiting groove on the hinged seat, being equipped with the limiting sleeve on the limiting groove, being equipped with the antiskid rubber pad in the limiting sleeve, improved the friction resistance of hinged axle rotation, improved the stability of hinged axle and extrusion board.

[0013] The utility model further provides for, being equipped with the antiskid line on the hinged axle, improved the friction resistance between hinged axle and antiskid rubber pad.

[0014] The utility model further provides for, being equipped with the limiting handle on the limiting sleeve, convenient for moving the position of limiting sleeve.

[0015] (Three) beneficial effects

[0016] Compared with the prior art, the utility model provides a kind of lumbar puncture lateral decubitus position placing device, with following beneficial effects:

[0017] 1, the height of extrusion board is adjusted by height adjusting device, the position of extrusion board on sickbed is conveniently adjusted by transverse moving device, so that extrusion board is located at the back of patient, and another is located at the small leg of patient, to further conveniently fix lateral decubitus, prevent patient from moving.

[0018] 2, adjusting block and adjusting rod are moved by adjusting slide rod, to further drive clamping block and clamping rod to move, when clamping rod is returned to the clamping groove, the support height of adjusting support rod to extrusion board is moved by support rod in support sleeve, when clamping rod is inserted into clamping hole, it is convenient to fix support height, improve the convenience of adjustment.

[0019] 3, limiting sleeve is vertically moved on limiting groove by limiting handle, the friction resistance of hinged axle rotation is improved by cooperating antiskid rubber pad in limiting sleeve with antiskid line on hinged seat, the support stability of hinged axle and extrusion board in certain direction of rotation is improved. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a lumbar puncture lateral decubitus placement device according to the present invention;

[0021] Figure 2 This is a cross-sectional view of the height adjustment device in this utility model;

[0022] Figure 3 for Figure 2 A magnified schematic diagram of a portion of the structure of A in the diagram;

[0023] Figure 4 This is a schematic diagram of the cooperative structure of the rotating shaft, rotating seat, and extrusion plate in this utility model;

[0024] Figure 5 This is a schematic diagram of the cooperative structure of the limiting sleeve, anti-slip rubber pad, hinge shaft and anti-slip texture in this utility model.

[0025] In the diagram: 1. Hospital bed; 2. Support sleeve; 3. Support rod; 4. Snap-fit ​​groove; 5. Snap-fit ​​block; 6. Snap-fit ​​rod; 7. Snap-fit ​​hole; 8. Adjusting block; 9. Adjusting rod; 10. Inclined groove; 11. Drive cylinder; 12. Hinge seat; 13. Hinge shaft; 14. Extrusion plate; 15. Moving groove; 16. Moving block; 17. Moving screw; 18. Moving handle; 19. Adjusting slide rod; 20. Adjusting handle; 21. Adjusting groove; 22. Adjusting plate; 23. Adjusting spring; 24. Limiting groove; 25. Limiting sleeve; 26. Anti-slip rubber pad; 27. Anti-slip texture; 28. Limiting handle. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figures 1-5A lateral decubitus positioning device for lumbar puncture includes a hospital bed 1. Two sets of lateral movement devices and height adjustment devices are provided on both sides of the hospital bed 1. The height adjustment device includes a support sleeve 2 and a support rod 3. The support rod 3 has a locking groove 4, and locking blocks 5 are symmetrically arranged within the locking groove 4. Locking rods 6 are provided on the locking blocks 5. The support sleeve 2 has locking holes 7 that mate with the locking rods 6. Adjusting blocks 8 are provided within the locking groove 4, and adjusting rods 9 are provided on both sides of the adjusting blocks 8. Inclined grooves 10 that mate with the adjusting rods 9 are provided on the locking blocks 5. A drive cylinder 11 is provided on one side of each support rod 3, and a hinge seat is provided at the output end of the drive cylinder 11. 12. The hinge seat 12 is provided with a hinge shaft 13, and the hinge shaft 13 is provided with a pressing plate 14. The transverse moving device includes a moving groove 15, which is symmetrically arranged on both sides of the bed 1. A moving block 16 is slidably provided in the moving groove 15. A moving screw 17 is rotatably provided in the moving groove 15. The moving screw 17 is threadedly connected to the moving block 16. A moving handle 18 is provided on one side of the moving screw 17. The hinge seat 12 is provided with a limiting groove 24, and a limiting sleeve 25 is provided in the limiting groove 24. An anti-slip rubber pad 26 is provided inside the limiting sleeve 25. An anti-slip texture 27 is provided on the hinge shaft 13, and a limiting handle 28 is provided on the limiting sleeve 25.

[0030] In this embodiment, the patient lies on their side on the bed 1 with their back perpendicular to the bed surface, their head flexed forward towards their chest as much as possible, and their hands clasped tightly against their abdomen, making their torso as arched as possible and their spine as kyphotic as possible to widen the intervertebral space for easier needle insertion. Rotating the moving handle 18 causes the moving screw 17 to rotate, resulting in a relative spiral rotation between the moving screw 17 and the moving block 16. This causes one moving block 16 to move to the back of the patient near the back of their head, and the other moving block 16 to move to the patient's bent lower legs. The height of the compression plate 14 is adjusted using the height adjustment device, and then the drive cylinder 11 is activated. The compression plate 14 is driven to press against one side of the patient's body. Through the cooperation of the hinge seat 12 and the hinge shaft 13, the compression direction of the compression plate 14 is adjusted so that the compression plate 14 fits more closely to the direction of the patient's torso. A limiting sleeve 25 is fitted on the limiting groove 24 through the limiting handle 28. The anti-slip rubber pad 26 on the limiting sleeve 25 cooperates with the anti-slip texture 27 on the hinge shaft 13 to increase the frictional resistance of the hinge shaft 13 rotation, thereby limiting the compression plate 14 from continuing to rotate freely. The compression plate 14 can be equipped with cotton pads or other materials to improve the patient's comfort. By squeezing the patient's torso with the compression plate 14, the patient's position is fixed.

[0031] Please see Figures 2-3 As one embodiment of the height adjustment device: the adjustment block 8 is provided with an adjustment slide rod 19, the adjustment slide rod 19 is provided with an adjustment handle 20, the support rod 3 is provided with an adjustment groove 21, the adjustment slide rod 19 is provided with an adjustment plate 22 in the adjustment groove 21, and an adjustment spring 23 is provided between the top of the adjustment plate 22 and the adjustment groove 21.

[0032] More specifically, when adjusting the height of the extrusion plate 14, the adjusting handle 20 is moved upward. The adjusting handle 20 drives the adjusting slide rod 19 to move the adjusting plate 22 upward and compress the adjusting spring 23. The adjusting slide rod 19 drives the adjusting block 8 and the adjusting rod 9 to move upward. Through the cooperation of the adjusting rod 9 and the inclined groove 10, the locking block 5 moves in opposite directions, thereby driving the locking rod 6 to retract into the locking groove 4. After the locking rod 6 leaves the locking hole 7, the support height of the support rod 3 in the support sleeve 2 can be adjusted. Then, the adjusting handle 20 is released, and the adjusting slide rod 19 moves downward to reset under the elastic force of the adjusting spring 23, causing the adjusting block 8 and the adjusting rod 9 to move downward. Through the cooperation of the adjusting rod 9 and the inclined groove 10, the locking block 5 and the locking rod 6 move outward. Through the cooperation of the locking rod 6 and the locking hole 7, the position of the support rod 3 and the support sleeve 2 is fixed, thereby adjusting the height of the extrusion plate 14.

[0033] In summary, when using or operating the entire device: the patient lies on their side on bed 1 with their back perpendicular to the bed surface, head flexed forward towards the chest as much as possible, hands clasped tightly against the abdomen, the torso bent into an arch shape as much as possible, and the spine convex as much as possible to widen the intervertebral space, facilitating needle insertion. Rotating the moving handle 18 causes the moving screw 17 to rotate, resulting in a relative spiral rotation between the moving screw 17 and the moving block 16. This causes one moving block 16 to move to the back of the patient near the back of the head, and the other moving block 16 to move to the patient's bent lower legs. The height of the compression plate 14 is adjusted using the height adjustment device, and then the drive is activated. The cylinder 11 drives the compression plate 14 to press towards one side of the patient's body. Through the cooperation of the hinge seat 12 and the hinge shaft 13, the compression direction of the compression plate 14 is adjusted so that the compression plate 14 fits more closely to the direction of the patient's torso. A limiting sleeve 25 is fitted on the limiting groove 24 through the limiting handle 28. The anti-slip rubber pad 26 on the limiting sleeve 25 cooperates with the anti-slip texture 27 on the hinge shaft 13 to increase the frictional resistance of the hinge shaft 13 rotation, thereby limiting the compression plate 14 from continuing to rotate freely. The compression plate 14 can be equipped with cotton pads or other materials to improve the patient's comfort. By squeezing the patient's torso with the compression plate 14, the patient's position is fixed.

[0034] When adjusting the height of the extrusion plate 14, move the adjusting handle 20 upward. The adjusting handle 20 drives the adjusting slide rod 19 to move the adjusting plate 22 upward and squeeze the adjusting spring 23. The adjusting slide rod 19 drives the adjusting block 8 and the adjusting rod 9 to move upward. Through the cooperation of the adjusting rod 9 and the inclined groove 10, the locking block 5 moves in opposite directions, thereby driving the locking rod 6 to retract into the locking groove 4. After the locking rod 6 leaves the locking hole 7, the support height of the support rod 3 in the support sleeve 2 can be adjusted. Then, release the adjusting handle 20. Under the elastic force of the adjusting spring 23, the adjusting slide rod 19 moves downward to reset, causing the adjusting block 8 and the adjusting rod 9 to move downward. Through the cooperation of the adjusting rod 9 and the inclined groove 10, the locking block 5 and the locking rod 6 move outward. Through the cooperation of the locking rod 6 and the locking hole 7, the position of the support rod 3 and the support sleeve 2 is fixed, thereby adjusting the height of the extrusion plate 14.

[0035] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0036] In all the solutions mentioned above, the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

[0037] In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise specified, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, and their electrical connection relationships and specific circuit structures will not be elaborated here.

[0038] Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing known technologies, and this utility model will not elaborate on them.

Claims

1. A lateral decubitus positioning device for lumbar puncture, comprising a hospital bed (1), wherein two sets of lateral movement devices and height adjustment devices are provided on both sides of the hospital bed (1), characterized in that: The height adjustment device includes a support sleeve (2) and a support rod (3). The support rod (3) is provided with a snap-fit ​​groove (4). Snap-fit ​​blocks (5) are symmetrically arranged in the snap-fit ​​groove (4). Snap-fit ​​rods (6) are provided on the snap-fit ​​blocks (5). The support sleeve (2) is provided with snap-fit ​​holes (7) that cooperate with the snap-fit ​​rods (6). An adjustment block (8) is provided in the snap-fit ​​groove (4). Adjustment rods (9) are provided on both sides of the adjustment block (8). An inclined groove (10) that cooperates with the adjustment rods (9) is provided on the snap-fit ​​blocks (5). A drive cylinder (11) is provided on one side of the support rod (3). A hinge seat (12) is provided at the output end of the drive cylinder (11). A hinge shaft (13) is provided on the hinge seat (12). An extrusion plate (14) is provided on the hinge shaft (13).

2. The lateral decubitus positioning device for lumbar puncture according to claim 1, characterized in that: The lateral movement device includes a moving groove (15), which is symmetrically arranged on both sides of the bed (1), and a moving block (16) is slidably arranged in the moving groove (15).

3. The lateral decubitus positioning device for lumbar puncture according to claim 2, characterized in that: A movable screw (17) is rotatably provided inside the movable groove (15). The movable screw (17) is threadedly connected to the movable block (16). A movable handle (18) is provided on one side of the movable screw (17).

4. The lateral decubitus positioning device for lumbar puncture according to claim 1, characterized in that: The adjusting block (8) is provided with an adjusting slide rod (19), and the adjusting slide rod (19) is provided with an adjusting handle (20).

5. The lateral decubitus positioning device for lumbar puncture according to claim 4, characterized in that: The support rod (3) is provided with an adjustment groove (21), and the adjustment slide rod (19) is provided with an adjustment plate (22) in the adjustment groove (21). An adjustment spring (23) is provided between the top of the adjustment plate (22) and the adjustment groove (21).

6. The lateral decubitus positioning device for lumbar puncture according to claim 1, characterized in that: The hinge seat (12) is provided with a limiting groove (24), the limiting groove (24) is provided with a limiting sleeve (25), and the limiting sleeve (25) is provided with an anti-slip rubber pad (26).

7. The lateral decubitus positioning device for lumbar puncture according to claim 6, characterized in that: The hinge shaft (13) is provided with anti-slip texture (27).

8. A lateral decubitus placement device for lumbar puncture according to claim 6, characterized in that: The limiting sleeve (25) is provided with a limiting handle (28).