Body and head synchronous steering device for manual reduction treatment of otolithiasis of pregnant woman

By designing a manual repositioning treatment device for benign paroxysmal positional vertigo (BPPV) in pregnant women, and utilizing a lifting component and a synchronous rotation structure, the problems of inaccurate head angle control and abdominal pressure during BPPV treatment in pregnant women are solved. This achieves precise synchronous steering and safety protection, improving treatment comfort and safety.

CN122031218APending Publication Date: 2026-05-15FOURTH MILITARY MEDICAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-11
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Pregnant women with BPPV often struggle to achieve precise head angle control during treatment. Traditional manual operation is prone to angle deviations, and the pregnant woman's abdomen is easily compressed, posing a safety hazard to both mother and baby. Existing equipment lacks a suitable support structure, resulting in low comfort and high workload.

Method used

A device for synchronized head and body rotation in manual repositioning treatment of benign paroxysmal positional vertigo (BPPV) in pregnant women was designed. The device includes a bed, head support pad, lifting assembly, T-shaped rotating ring, and rotating cylinder. It achieves synchronized head and body rotation through cylinder drive, is equipped with a support groove to protect the pregnant woman's abdomen, and uses a repositioning and propulsion assembly to quickly fix the body position.

Benefits of technology

It achieves precise control of the head angle, avoids angle deviation, protects the pregnant woman's abdomen, reduces the workload of medical staff, and improves treatment comfort and safety.

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Abstract

The invention relates to the technical field of dizziness diagnosis and treatment equipment, in particular to a body and head synchronous steering device for manipulation reduction treatment of otolithiasis of pregnant women, which comprises a bed body, a first lifting assembly is arranged on the bed body, a head support pad is fixedly mounted through the first lifting assembly, and a mounting groove is formed in the bed body. A T-shaped rotating groove is formed in the mounting groove, a T-shaped rotating ring rotates in the T-shaped rotating groove, a second lifting assembly is fixedly mounted on the inner wall of the T-shaped rotating ring, a fixing seat is fixedly mounted through the second lifting assembly, a lifting groove is formed in the lower surface of the fixing seat, and an annular rotating groove is formed in the groove wall of the mounting groove; the device is specially designed for otolithiasis reduction treatment of the pregnant woman, the height of the head supporting pad can be adjusted, and the position requirement of reduction manipulation improvement is accurately met; the synchronous rotating structure realizes the same-direction rotation of the body and the head, and the lifting groove protects the pregnant belly and ensures the safety of the mother and the baby; the device is convenient and efficient to operate, the comfort of the pregnant woman can be improved, and clinical popularization of the technology is facilitated.
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Description

Technical Field

[0001] This invention relates to the field of diagnostic and treatment equipment for vertigo, specifically to a device for synchronized head turning during manual repositioning treatment of benign paroxysmal positional vertigo (BPPV) in pregnant women. Background Technology

[0002] BPPV is a common vertigo disorder in clinical practice, with a cumulative incidence of up to 10% in the general population. The safety of medications used in pregnant women with horizontal semicircular canal BPPV is unclear, leading to delayed and ineffective treatment for these patients, resulting in recurrent vertigo and dizziness. Therefore, repositioning therapy using the Barbecue method, Gufonit method, or a comprehensive vertigo treatment system (otolith repositioning chair) is often employed, which can achieve better clinical cure rates.

[0003] However, the treatment process requires precise control of the head elevation angle and synchronized body and head rotation. Traditional manual operation is prone to angle deviations, affecting the repositioning effect. Furthermore, the special physiological condition of a pregnant woman's protruding abdomen makes the abdomen susceptible to compression and impact during repositioning, posing a safety hazard to both mother and baby. Current procedures still require medical staff to manually support and fix the patient's position throughout the process, which is labor-intensive and lacks suitable support structures, easily leading to low comfort and poor cooperation from pregnant women. This hinders the standardized implementation and clinical promotion of improved repositioning techniques. Therefore, it is necessary to propose a device for synchronized body and head rotation during manual repositioning treatment of benign paroxysmal positional vertigo (BPPV) in pregnant women. Summary of the Invention

[0004] To address the problems in the prior art, this invention provides a device for synchronized head and body rotation during manual repositioning treatment of benign paroxysmal positional vertigo (BPPV) in pregnant women.

[0005] The technical solution adopted by this invention to solve its technical problem is: a body and head synchronous turning device for manual repositioning treatment of benign paroxysmal positional vertigo (BPPV) in pregnant women, including a bed, a first lifting component on the bed, and a head support pad fixedly installed through the first lifting component. The bed has an installation groove, and a T-shaped rotating groove is formed within the installation groove. A T-shaped rotating ring rotates within the T-shaped rotating groove. A second lifting component is fixedly installed on the inner wall of the T-shaped rotating ring, and a fixed seat is fixedly installed through the second lifting component. A lifting groove is formed on the lower surface of the fixed seat. An annular rotating groove is formed on the wall of the installation groove. A rotating cylinder is rotatably connected within the annular rotating groove. An opening is formed through the rotating cylinder. A back support pad is fixedly installed inside the rotating cylinder. A fixing block is fixedly installed on the inner wall of the T-shaped rotating ring. A positioning hole is formed through the fixing block. A positioning groove is formed on the wall of the installation groove. A repositioning propulsion component is provided within the positioning groove, and a positioning rod is fixedly installed on the repositioning propulsion component. One end of the positioning rod extends through into the positioning hole.

[0006] Specifically, the first lifting assembly includes a fixing groove, which is formed on the upper surface of the bed. A first driving cylinder is fixedly installed in the fixing groove. A first piston rod is movably connected to the output end of the first driving cylinder. A fixing plate is fixedly installed at the upper end of the first piston rod. The fixing plate is slidably connected in the fixing groove, and the upper end of the fixing plate extends out of the bed and is fixedly connected to the head support pad.

[0007] Specifically, the second lifting assembly includes a second driving cylinder, which is fixedly installed on the inner wall of the T-shaped rotating ring. The output end of the second driving cylinder is movably connected to a second piston rod, and the lower end of the second piston rod is fixedly connected to a fixed seat.

[0008] Specifically, the reset propulsion assembly includes a movable hole that penetrates the wall of the positioning groove. A movable plate is slidably connected inside the movable hole. The movable plate is fixedly sleeved on the positioning rod. A support hole is penetrated through the movable plate. A support rod is fixedly installed between the walls of the movable hole. A spring is fixedly installed between the movable hole and the movable plate.

[0009] Specifically, the movable plate is slidably connected to the support rod through a support hole, and the upper end of the movable plate passes through the opening of the movable hole and extends out of the bed body.

[0010] Specifically, the spring is sleeved on the wall of the support rod, one end of the spring is fixedly connected to the wall of the moving hole, and the other end of the spring is fixedly connected to the outer wall of the moving plate.

[0011] Specifically, the T-shaped rotating groove, the T-shaped rotating ring, the annular rotating groove, and the rotating cylinder are arranged in a coincident manner.

[0012] Specifically, the opening matches the fixed seat, and the fixed seat is slidably connected inside the opening and abuts against the inner wall of the opening.

[0013] The beneficial effects of this invention are as follows: The head-body synchronous turning device for manual repositioning treatment of benign paroxysmal positional vertigo (BPPV) in pregnant women, as described in this invention, adjusts the height of the head support pad through the first lifting component, precisely adapting to the head positioning requirements of the modified Barbecue and Gufonit methods. Utilizing the synchronous rotation structure of the T-shaped rotating ring and the rotating cylinder, it achieves synchronous turning of the pregnant woman's body and head, avoiding angular deviations during manual operation. The support groove of the fixed seat effectively protects the pregnant belly, avoiding the risk of abdominal pressure and impact during repositioning, ensuring the safety of both mother and baby. The repositioning and pushing component, through the locking of the positioning rod and positioning hole and spring repositioning, can quickly complete the fixation and unlocking of the body position, simplifying the operation process and reducing the workload of medical staff. Simultaneously, the flexible design and adjustable structure of the head and back support pads improve the comfort and cooperation of pregnant women during treatment. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 A schematic diagram of the external structure of the head-body synchronous turning device for manual repositioning treatment of benign paroxysmal positional vertigo (BPPV) in pregnant women, provided by the present invention, in standby mode. Figure 2 This is a schematic diagram of the external structure of the device for synchronized head-body rotation during manual repositioning treatment of benign paroxysmal positional vertigo (BPPV) in pregnant women, provided by the present invention. Figure 3 This is an internal cross-sectional view of the first lifting component of the body-head synchronous steering device for manual repositioning treatment of benign paroxysmal positional vertigo (BPPV) in pregnant women provided by the present invention. Figure 4 A schematic diagram of the connection structure between the T-shaped rotating ring and the rotating cylinder of the body-head synchronous turning device for manual repositioning treatment of benign paroxysmal positional vertigo (BPPV) in pregnant women provided by the present invention. Figure 5 A schematic diagram of the T-shaped rotating ring structure of the body-head synchronous steering device for manual repositioning treatment of benign paroxysmal positional vertigo (BPPV) in pregnant women provided by the present invention. Figure 6 A schematic diagram of the rotating cylinder structure of the body-head synchronous steering device for manual repositioning treatment of benign paroxysmal positional vertigo (BPPV) in pregnant women provided by the present invention; Figure 7 This is an internal cross-sectional view of the repositioning propulsion component of the body-head synchronous steering device for manual repositioning treatment of benign paroxysmal positional vertigo (BPPV) in pregnant women provided by the present invention.

[0016] In the diagram: 1. Bed frame; 2. Head support pad; 3. Mounting slot; 4. T-shaped rotating slot; 5. T-shaped rotating ring; 6. Fixed seat; 7. Lifting slot; 8. Annular rotating slot; 9. Rotating cylinder; 10. Opening; 11. Back support pad; 12. Fixed block; 13. Positioning hole; 14. Positioning slot; 15. Positioning rod; 16. Fixed slot; 17. First drive cylinder; 18. First piston rod; 19. Fixed plate; 20. Second drive cylinder; 21. Second piston rod; 22. Moving hole; 23. Moving plate; 24. Support hole; 25. Support rod; 26. Spring. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0018] like Figures 1-7 As shown, the present invention provides the following technical solution: Example 1: A head-switching device for manual repositioning treatment of benign paroxysmal positional vertigo (BPPV) in pregnant women, comprising a bed 1, a first lifting assembly on the bed 1, and a head support pad 2 fixedly mounted thereon; a mounting groove 3 on the bed 1, and a T-shaped rotating groove 4 within the mounting groove 3; a rotating T-shaped ring 5 within the T-shaped rotating groove 4; a second lifting assembly fixedly mounted on the inner wall of the T-shaped rotating ring 5, and a fixed seat 6 fixedly mounted thereon; a support groove 7 on the lower surface of the fixed seat 6; and the groove of the mounting groove 3... An annular rotating groove 8 is provided on the wall, and a rotating cylinder 9 is rotatably connected in the annular rotating groove 8. An opening 10 is provided through the rotating cylinder 9. A back support pad 11 is fixedly installed inside the rotating cylinder 9. A fixing block 12 is fixedly installed on the inner wall of the T-shaped rotating ring 5. A positioning hole 13 is provided through the fixing block 12. A positioning groove 14 is provided on the groove wall of the mounting groove 3. A reset pushing component is provided in the positioning groove 14, and a positioning rod 15 is fixedly installed in the reset pushing component. One end of the positioning rod 15 extends through into the positioning hole 13. When using it, the following steps are included: Step 1: First, the pregnant woman passes through the T-shaped rotating ring 5 and the rotating cylinder 9, and lies on the bed 1, back support cushion 11, and head support cushion 2. Then, the second drive cylinder 20 is activated, which drives the second piston rod 21 to descend. The second piston rod 21 drives the fixed seat 6 to descend, and the fixed seat 6 engages with the opening 10 of the rotating cylinder 9, so that the rotating cylinder 9 and the T-shaped rotating ring 5 run synchronously. At the same time, the fixed seat 6 protects the pregnant belly through the support groove 7 and supports the pregnant belly when the pregnant woman is lying on her side or stomach. Step 2, (1) For pregnant women diagnosed with horizontal semicircular canal geonystagmus-type BPPV (canalolithotomy), treatment can be performed using the modified Barbecue repositioning method, with the following steps: 1. The patient lies supine on the bed 1 with their head placed on the head support pad 2 at a height of about 30° (the pillow can be about 10-13cm high). 2. Turn your body and head 90° toward the healthy ear, keeping your head raised 30°, and maintain this position until the dizziness disappears; 3. Continue to rotate your body and head another 90° in the same direction, with your forehead touching the assistive device. Maintain this position until the dizziness disappears. 4. Turn the head another 90° in the same direction, and continue to keep the head raised by 30°. At this time, the patient is lying on the affected side. Maintain this position until the dizziness disappears. 5. Rotate the patient 90° in the same direction. The patient will be in a supine position. Keep the head raised about 30° to complete the operation. Maintain this position until the dizziness disappears. (2) For pregnant women diagnosed with horizontal semicircular canal lift-off nystagmus (BPPV), repositioning can be performed using the modified Gufonit repositioning maneuver, as follows: 1. Position the pregnant woman facing the examiner, with her lying down on bed 1 and the affected ear facing down; 2. Keep the body in a lateral decubitus position on the affected side, raise the patient's head to >45 degrees until the nystagmus is significantly reduced or no nystagmus is observed. Then, support the patient's head and quickly place the patient's head on the bed surface. Continue to keep the patient in a lateral decubitus position until the nystagmus is no longer observed. 3. Quickly turn your head upwards 45° and hold this position for 120 seconds until the nystagmus disappears; 4. The patient should remain seated for 10-15 minutes. 5. Then the patient lies supine with their head raised 30° to perform a supine Roll test to check if the gun switch was successful; The third step is to start the first drive cylinder 17 when it is necessary to adjust the angle of the head during the treatment by the repositioning method. The first drive cylinder 17 drives the first piston rod 18 to rise and fall, and the first piston rod 18 drives the fixing plate 19 to rise and fall. The fixing plate 19 drives the head support pad 2 to rise and fall. The adjustment of the height of the head support pad 2 changes the angle of the head when it is placed and adapts to the needs of the repositioning method treatment. In the fourth step, during the treatment using the repositioning method, when it is necessary to adjust the body angle, the positioning rod 15 is moved by the moving plate 23 and disengaged from the positioning hole 13 on the fixing block 12, thereby releasing the fixation of the T-shaped rotating ring 5 and the rotating cylinder 9. At this time, the T-shaped rotating ring 5 can be rotated 90°. The T-shaped rotating ring 5 drives the rotating cylinder 9 to rotate synchronously through the engagement between the fixing seat 6 and the opening 10. The rotating cylinder 9 drives the pregnant woman to adjust her body position. After the adjustment is completed, the moving plate 23 can be released. At this time, the spring 26, supported by the hole wall of the moving hole 22, pushes the moving plate 23 to move and reset. The moving plate 23 drives the positioning rod 15 to move and insert into the positioning hole 13, so that the positioning rod 15 is engaged and fixed with the fixing block 12, and the T-shaped rotating ring 5 and the rotating cylinder 9 are fixed, so that the pregnant woman's body position angle changes and adapts to the needs of the repositioning treatment.

[0019] Example 2: The technical solutions in this example that differ from Example 1 include: The first lifting assembly includes a fixing groove 16, which is formed on the upper surface of the bed frame 1. A first drive cylinder 17 is fixedly installed in the fixing groove 16. A first piston rod 18 is movably connected to the output end of the first drive cylinder 17. A fixing plate 19 is fixedly installed at the upper end of the first piston rod 18. The fixing plate 19 is slidably connected in the fixing groove 16, and its upper end extends outside the bed frame 1 and is fixedly connected to the head support pad 2. When the first drive cylinder 17 is activated, it drives the first piston rod 18 to lift, which in turn drives the fixing plate 19 to lift, and the fixing plate 19 to lift, thus adjusting the height of the head support pad 2. The second lifting assembly includes a second drive cylinder 20. The second drive cylinder 20 is fixedly installed on the inner wall of the T-shaped rotating ring 5. The output end of the second drive cylinder 20 is movably connected to the second piston rod 21. The lower end of the second piston rod 21 is fixedly connected to the fixed seat 6. The opening 10 matches the fixed seat 6. The axis lines of the T-shaped rotating groove 4, the T-shaped rotating ring 5, the annular rotating groove 8, and the rotating cylinder 9 are arranged in a coincident manner. The fixed seat 6 is slidably connected in the opening 10 and abuts against the inner wall of the opening 10. When the second drive cylinder 20 is activated, the second drive cylinder 20 drives the second piston rod 21 to descend. The second piston rod 21 drives the fixed seat 6 to rise and fall. When the fixed seat 6 descends, it can engage with the opening 10, thereby connecting the T-shaped rotating ring 5 and the rotating cylinder 9, and they can rotate synchronously, in the same direction, and at the same angle.

[0020] Example 3: The technical solutions in this example that differ from Example 1 include: The reset propulsion assembly includes a movable hole 22, which is formed through the wall of the positioning groove 14. A movable plate 23 is slidably connected within the movable hole 22. The movable plate 23 is fixedly sleeved on the positioning rod 15. A support hole 24 is formed through the movable plate 23. A support rod 25 is fixedly installed between the walls of the movable hole 22. A spring 26 is fixedly installed between the movable hole 22 and the movable plate 23. The movable plate 23 is slidably connected to the support rod 25 through the support hole 24. The upper end of the movable plate 23 passes through the opening of the movable hole 22 and extends outside the bed body 1. The spring 26 is sleeved on the support rod. On the rod wall of 25, one end of the spring 26 is fixedly connected to the wall of the moving hole 22, and the other end of the spring 26 is fixedly connected to the outer wall of the moving plate 23. The moving plate 23 pushes the positioning rod 15 to move and disengage from the positioning hole 13 on the fixed block 12, thereby releasing the fixation of the T-shaped rotating ring 5 and the rotating cylinder 9 and facilitating adjustment. After the adjustment is completed, the moving plate 23 can be released. At this time, the spring 26, supported by the wall of the moving hole 22, pushes the moving plate 23 to move and reset. The moving plate 23 drives the positioning rod 15 to move and insert into the positioning hole 13, so that the positioning rod 15 is locked and fixed to the fixed block 12.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for synchronized head-body rotation during manual repositioning therapy for benign paroxysmal positional vertigo (BPPV) in pregnant women, comprising a bed (1), characterized in that, The bed frame (1) is provided with a first lifting assembly, and a head support pad (2) is fixedly installed through the first lifting assembly. The bed frame (1) is provided with an installation groove (3), and a T-shaped rotating groove (4) is provided in the installation groove (3). A T-shaped rotating ring (5) rotates in the T-shaped rotating groove (4). A second lifting assembly is fixedly installed on the inner wall of the T-shaped rotating ring (5), and a fixed seat (6) is fixedly installed through the second lifting assembly. A lifting groove (7) is provided on the lower surface of the fixed seat (6). An annular rotating groove (8) is provided on the groove wall of the installation groove (3). (8) A rotating cylinder (9) is rotatably connected inside. An opening (10) is provided through the rotating cylinder (9). A back support pad (11) is fixedly installed inside the rotating cylinder (9). A fixing block (12) is fixedly installed on the inner wall of the T-shaped rotating ring (5). A positioning hole (13) is provided through the fixing block (12). A positioning groove (14) is provided on the groove wall of the mounting groove (3). A reset propulsion assembly is provided in the positioning groove (14). A positioning rod (15) is fixedly installed in the reset propulsion assembly. One end of the positioning rod (15) extends through into the positioning hole (13).

2. The device for synchronized head and body rotation in manual repositioning therapy for benign paroxysmal positional vertigo (BPPV) in pregnant women according to claim 1, characterized in that: The first lifting assembly includes a fixing groove (16), which is opened on the upper surface of the bed (1). A first driving cylinder (17) is fixedly installed in the fixing groove (16). A first piston rod (18) is movably connected to the output end of the first driving cylinder (17). A fixing plate (19) is fixedly installed at the upper end of the first piston rod (18). The fixing plate (19) is slidably connected in the fixing groove (16), and the upper end of the fixing plate (19) extends to the outside of the bed (1) and is fixedly connected to the head support pad (2).

3. The device for synchronized head and body rotation in manual repositioning therapy for benign paroxysmal positional vertigo (BPPV) in pregnant women according to claim 1, characterized in that: The second lifting assembly includes a second driving cylinder (20), which is fixedly installed on the inner wall of the T-shaped rotating ring (5). The output end of the second driving cylinder (20) is movably connected to a second piston rod (21), and the lower end of the second piston rod (21) is fixedly connected to a fixed seat (6).

4. The device for synchronized head and body rotation in manual repositioning therapy for benign paroxysmal positional vertigo (BPPV) in pregnant women according to claim 1, characterized in that: The reset propulsion assembly includes a movable hole (22), which is opened through the groove wall of the positioning groove (14). A movable plate (23) is slidably connected inside the movable hole (22). The movable plate (23) is fixedly sleeved on the positioning rod (15). A support hole (24) is opened through the movable plate (23). A support rod (25) is fixedly installed between the hole walls of the movable hole (22). A spring (26) is fixedly installed between the movable hole (22) and the movable plate (23).

5. The device for synchronized head-body rotation during manual repositioning therapy for benign paroxysmal positional vertigo (BPPV) in pregnant women according to claim 4, characterized in that: The movable plate (23) is slidably connected to the support rod (25) through the support hole (24), and the upper end of the movable plate (23) passes through the opening of the movable hole (22) and extends to the outside of the bed body (1).

6. The device for synchronized head and body rotation in manual repositioning therapy for benign paroxysmal positional vertigo (BPPV) in pregnant women according to claim 4, characterized in that: The spring (26) is sleeved on the wall of the support rod (25). One end of the spring (26) is fixedly connected to the wall of the moving hole (22), and the other end of the spring (26) is fixedly connected to the outer wall of the moving plate (23).

7. The device for synchronized head and body rotation in manual repositioning therapy for benign paroxysmal positional vertigo (BPPV) in pregnant women according to claim 1, characterized in that: The axis lines of the T-shaped rotating groove (4), T-shaped rotating ring (5), annular rotating groove (8) and rotating cylinder (9) are arranged in a coincident manner.

8. The device for synchronized head and body rotation in manual repositioning therapy for benign paroxysmal positional vertigo (BPPV) in pregnant women according to claim 1, characterized in that: The opening (10) matches the fixed seat (6), and the fixed seat (6) is slidably connected inside the opening (10) and abuts against the inner wall of the opening (10).