Neck and head fixator for transcranial magnetic stimulation therapy

Abstract

The invention belongs to the technical field of transcranial magnetic stimulation treatment, and particularly relates to a neck and head fixator for transcranial magnetic stimulation treatment, which comprises a mounting frame, a hydraulic telescopic rod I is fixedly arranged on the side wall of the mounting frame, hydraulic oil is arranged at the base end of the hydraulic telescopic rod I, a connecting sliding block is rotationally arranged at the movable end of the hydraulic telescopic rod I, and a connecting rod I is arranged at the movable end of the connecting sliding block. A leaning plate is arranged on the connecting slide block in a sliding manner; the fixator is high in adaptability, through combination of a third hydraulic telescopic rod, a pressure control spring and a shoulder fixing plate, the fixator flexibly adapts to the head and shoulder sizes of different patients, and the comfort level and stability are improved; the fixing force is controllable, the pressure controls the spring to buffer the clamping force, the contact switch triggers the electromagnetic valve to be closed, and double guarantee is achieved to prevent excessive compression; multi-part linkage can be achieved, through hydraulic pipeline switching, the patient leans against the device to sequentially trigger coherent actions such as descending of the sliding supporting plate and fixing of the shoulder and neck, manual operation is not needed, movement of the upper body is limited, the treatment precision is improved, and the medical care burden is relieved.

Description

Technical Field

[0001] This invention belongs to the field of transcranial magnetic stimulation therapy technology, and particularly relates to a neck and head fixation device for transcranial magnetic stimulation therapy. Background Technology

[0002] During transcranial magnetic stimulation (TMS) therapy, the stability of the patient's head and neck is crucial for ensuring the accuracy and safety of the treatment. However, existing neck-head immobilizers present several problems in practical applications that urgently need to be addressed. The existing fixation devices are not universally applicable. Due to individual differences in the physiological structure of the head and neck of different patients, it is difficult to adapt to the diverse size requirements. This often results in loose fixation or excessive pressure, which affects the stability of treatment and reduces patient comfort. Imbalance in clamping force regulation, lack of effective force feedback and control mechanisms, and medical staff relying solely on experience can easily lead to insufficient clamping force resulting in fixation failure, or excessive clamping force causing patient pain or even soft tissue damage. The low level of automation and the need for manual step-by-step operation during fixation result in a heavy workload for medical staff and difficulty in achieving coordinated shoulder and head fixation movements, affecting overall fixation efficiency and synergy. These shortcomings severely restrict the standardization and efficiency of transcranial magnetic stimulation therapy. Therefore, there is an urgent need for a neck and head fixation device that is highly adaptable, has controllable force, is easy to install, and is easy to operate. Summary of the Invention

[0003] To address the above issues and overcome the shortcomings of existing technologies, this fixation device boasts strong adaptability. Through a combination of a hydraulic telescopic rod, a pressure-controlled spring, and a shoulder fixation plate, it flexibly adapts to different patients' head and shoulder sizes, enhancing comfort and stability. The fixation force is controllable; the pressure-controlled spring buffers the clamping force, and a contact switch triggers the solenoid valve to close, providing double protection against excessive pressure. Furthermore, it allows for multi-part linkage; through hydraulic pipeline switching, the patient can lean against the device and sequentially trigger the sliding support plate to descend, fix the shoulder and neck, and perform other sequential actions without manual operation, thus reducing upper body movement, improving treatment precision, and lessening the burden on medical staff.

[0004] The technical solution adopted in this invention is as follows: A neck and head fixation device for transcranial magnetic stimulation therapy includes a mounting frame. A hydraulic telescopic rod is fixedly mounted on the side wall of the mounting frame. The base end of the hydraulic telescopic rod is filled with hydraulic oil. A connecting slider is rotatably mounted on the movable end of the hydraulic telescopic rod. A backing plate is slidably mounted on the connecting slider. The connecting slider ensures that the movable end of the hydraulic telescopic rod can retract smoothly when the backing plate moves toward the mounting frame. A groove is opened at the bottom of the backing plate, which allows the backing plate to be fitted onto the back of a seat. A fastening screw is symmetrically spirally mounted on the bottom side wall of the backing plate, which securely fixes the backing plate to the back of the seat. A sliding support plate is symmetrically slidably mounted on the backing plate. A return spring is fixedly mounted between the bottom of the sliding support plate and the backing plate, which is used to reset the sliding support plate. A second hydraulic telescopic rod is fixedly mounted on the top of the sliding support plate. The movable end of the second hydraulic telescopic rod is fixedly connected to the backing plate. The extended movable end of the second hydraulic telescopic rod can drive the sliding support plate to move downward.

[0005] As a preferred technical solution of this invention, a hydraulic telescopic rod three is fixedly installed inside the sliding support plate. A transmission plate is fixedly installed at the movable end of the hydraulic telescopic rod three. A head and neck fixing plate is slidably installed on the transmission plate. An airbag is fixedly installed on the surface of the head and neck fixing plate away from the transmission plate to protect the patient's head. The extension of the movable end of the hydraulic telescopic rod three can drive the two transmission plates to move closer to each other, thereby driving the two head and neck fixing plates to move closer to each other to fix the patient's head. A pressure control spring is fixed between the transmission plate and the head and neck fixing plate. The pressure control spring is used to control the force with which the device clamps the head.

[0006] As a preferred technical solution of this invention, a guide rod is slidably mounted on the sliding support plate, and a second shoulder fixing plate is fixedly mounted at the bottom of the guide rod. The second shoulder fixing plate can be used to position the height of the patient's shoulder. A first shoulder fixing plate is rotatably mounted on the sliding support plate, and an airbag is fixedly mounted at the bottom of the end of the first shoulder fixing plate away from the sliding support plate. An airbag is also fixedly mounted at the bottom of the second shoulder fixing plate to protect the patient's shoulder. The end of the guide rod away from the second shoulder fixing plate is slidably and rotatably connected to the first shoulder fixing plate. When the sliding support plate moves downward, the second shoulder fixing plate can also move downward and contact the patient's shoulder, thereby bringing the second shoulder fixing plate and the sliding support plate closer together. When the second shoulder fixing plate and the sliding support plate move closer together, the first shoulder fixing plate can rotate relative to the sliding support plate, thereby pressing down on the patient's shoulder and making the patient's upper body press firmly against the seat back.

[0007] As a preferred technical solution of this invention, a valve block sleeve is fixedly installed inside the sliding support plate, and a switching valve block is slidably installed inside the valve block sleeve. A switching slider is fixedly installed on the top of the shoulder fixing plate two, and the switching slider is located directly below the switching valve block. Pipeline 1 and pipeline 2 are provided on the switching valve block. Pipeline 1 is provided between the base end of the hydraulic telescopic rod 1 and the valve block sleeve, and pipeline 2 is provided between the valve block sleeve and the base end of the hydraulic telescopic rod 2. When the switching valve block is not in contact with the switching slider, pipeline 1, pipeline 1, and pipeline 2 are connected, and hydraulic oil can flow from the hydraulic telescopic rod 1 through pipeline 1, pipeline 1, and pipeline 2 into the base end of the hydraulic telescopic rod 2. Pipeline 3 is provided between the switching valve block and the base end of the hydraulic telescopic rod 3. After the switching valve block contacts the switching slider and moves upward relative to the sliding support plate, pipeline 1, pipeline 2, and pipeline 3 are connected, and hydraulic oil can flow from the hydraulic telescopic rod 1 through pipeline 1, pipeline 2, and pipeline 3 into the base end of the hydraulic telescopic rod 3.

[0008] As a preferred technical solution of this invention, a contact switch is fixedly provided on the side of the head and neck fixation plate near the transmission plate, and a solenoid valve is fixedly provided on the pipe. The contact switch and the solenoid valve are electrically connected. The combination of the solenoid valve and the contact switch can prevent the transmission plates on both sides from exerting excessive force on the head and causing injury to the patient.

[0009] The beneficial effects of the present invention after adopting the above structure are as follows: (1) Significantly improved adaptability: By using the three hydraulic telescopic rods to drive the transmission plate and the head and neck fixation plate for bidirectional adjustment, combined with the buffering effect of the pressure control spring, it can flexibly adapt to the head size of different patients. At the same time, the combined design of the shoulder fixation plate one and the shoulder fixation plate two can adapt to patients with different shoulder widths and shoulder heights, effectively solving the problem of insufficient universality of the existing device, and improving patient comfort while ensuring fixation stability. (2) Precise and controllable fixation force: The pressure control spring can buffer the clamping force of the head and neck fixation plate on the head and avoid rigid compression; when the clamping force reaches the threshold, the contact switch on the head and neck fixation plate triggers the solenoid valve to close and cut off the hydraulic oil supply, preventing excessive force from causing injury to the patient from both mechanical and electrical control levels, and completely solving the defect of unbalanced force control in the existing device. (3) Achieve multi-site linkage fixation: Through the switching design of hydraulic pipeline, the patient's leaning action can trigger the continuous action of sliding support plate descent, shoulder fixation plate clamping, and head and neck fixation plate tightening in sequence, without the need for manual step-by-step operation; the coordinated fixation of the shoulder and head can effectively restrict the patient's upper body movement, improve the targeting accuracy of transcranial magnetic stimulation, and at the same time reduce the workload of medical staff. Attached Figure Description

[0010] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the invention and do not constitute a limitation thereof.

[0011] Figure 1 This is a schematic diagram of the overall structure of a neck and head fixation device for transcranial magnetic stimulation therapy according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the connection structure of the reset spring, sliding support plate and hydraulic telescopic rod II in this invention; Figure 4 This is a schematic diagram of the connection structure of shoulder fixing plate one, sliding support plate and shoulder fixing plate two in this invention; Figure 5 This is a schematic diagram of the connection structure of the head and neck fixing plate, the transmission plate, and the hydraulic telescopic rod in this invention; Figure 6 This is a schematic diagram of the connection structure of the switching valve block, pipe two, and pipe three in this invention; Figure 7 This is a schematic diagram of the switching valve block structure in this invention; Figure 8 for Figure 1 Enlarged view of the local structure at point A in the middle.

[0012] In the attached diagram: 1. Mounting bracket; 2. Hydraulic telescopic rod one; 3. Backing plate; 4. Connecting slider; 5. Fastening screw; 6. Hydraulic telescopic rod two; 7. Sliding support plate; 8. Switching valve block; 9. Head and neck fixing plate; 10. Shoulder fixing plate one; 11. Transmission plate; 12. Shoulder fixing plate two; 13. Switching slider; 14. Guide rod; 15. Pressure control spring; 16. Hydraulic telescopic rod three; 17. Pipe one; 18. Pipe two; 19. Pipe one; 20. Pipe two; 21. Solenoid valve; 22. Contact switch; 23. Pipe three; 24. Return spring; 25. Valve block sleeve. Detailed Implementation

[0013] Example 1, as Figures 1-8As shown, the transcranial magnetic stimulation (TMS) neck and head fixation device of this embodiment includes a mounting frame 1. A hydraulic telescopic rod 2 is fixedly mounted on the side wall of the mounting frame 1. Hydraulic oil is installed at the base end of the hydraulic telescopic rod 2. A connecting slider 4 is rotatably mounted on the movable end of the hydraulic telescopic rod 2. A backing plate 3 is slidably mounted on the connecting slider 4. The connecting slider 4 ensures that the movable end of the hydraulic telescopic rod 2 can retract smoothly when the backing plate 3 moves toward the mounting frame 1. A groove is opened at the bottom of the backing plate 3, which allows the backing plate 3 to be fitted onto the back of a seat. The bottom side wall is symmetrically equipped with fastening screws 5, which can firmly fix the backrest plate 3 to the back of the seat. The backrest plate 3 is symmetrically equipped with sliding support plates 7. The bottom of the sliding support plate 7 is fixedly connected to the backrest plate 3 with a return spring 24. The return spring 24 is used to reset the sliding support plate 7. The top of the sliding support plate 7 is fixedly equipped with a hydraulic telescopic rod 6. The movable end of the hydraulic telescopic rod 6 is fixedly connected to the backrest plate 3. The movable end of the hydraulic telescopic rod 6 can extend and drive the sliding support plate 7 to move downward.

[0014] The sliding support plate 7 is equipped with a hydraulic telescopic rod 16, and the movable end of the hydraulic telescopic rod 16 is equipped with a transmission plate 11. A head and neck fixing plate 9 is slidably mounted on the transmission plate 11. An airbag is fixed on the surface of the head and neck fixing plate 9 away from the transmission plate 11 to protect the patient's head. When the movable end of the hydraulic telescopic rod 16 extends, it can drive the two transmission plates 11 to move closer to each other, thereby driving the two head and neck fixing plates 9 to move closer to each other to fix the patient's head. A pressure control spring 15 is fixed between the transmission plate 11 and the head and neck fixing plate 9. The pressure control spring 15 is used to control the force with which the device clamps the head.

[0015] The sliding support plate 7 is equipped with a guide rod 14, and a shoulder fixing plate 2 12 is fixedly mounted at the bottom of the guide rod 14. The shoulder fixing plate 2 12 can be used to position the height of the patient's shoulder. A shoulder fixing plate 10 is rotatably mounted on the sliding support plate 7. An airbag is fixedly mounted at the bottom of the end of the shoulder fixing plate 10 away from the sliding support plate 7. An airbag is fixedly mounted at the bottom of the shoulder fixing plate 2 12 to protect the patient's shoulder. The end of the guide rod 14 away from the shoulder fixing plate 2 12 is slidably and rotatably connected to the shoulder fixing plate 10. When the sliding support plate 7 moves downward, the shoulder fixing plate 2 12 can also move downward and contact the patient's shoulder, thereby bringing the shoulder fixing plate 2 12 and the sliding support plate 7 closer together. When the shoulder fixing plate 2 12 and the sliding support plate 7 move closer together, the shoulder fixing plate 10 can rotate relative to the sliding support plate 7, thereby pressing down on the patient's shoulder and making the patient's upper body close to the seat back.

[0016] The sliding support plate 7 has a valve block sleeve 25 fixed inside, and a switching valve block 8 is slidably mounted inside the valve block sleeve 25. A switching slider 13 is fixed to the top of the shoulder fixing plate 2 12, and is located directly below the switching valve block 8. The switching valve block 8 has a first pipe 19 and a second pipe 20. A first pipe 17 is located between the base end of the hydraulic telescopic rod 2 and the valve block sleeve 25, and a second pipe 18 is located between the valve block sleeve 25 and the base end of the hydraulic telescopic rod 2 6. When the switching valve block 8 is not in contact with the switching slider 13, the first pipe 17 and the second pipe 19 are open. Pipeline 19 and Pipeline 2 18 are connected, and hydraulic oil can flow from hydraulic telescopic rod 1 2 through pipe 1 17, pipe 1 19 and pipe 2 18 into the base end of hydraulic telescopic rod 2 6. Pipeline 3 23 is provided between the switching valve block 8 and the base end of hydraulic telescopic rod 3 16. After the switching valve block 8 contacts the switching slider 13 and moves upward relative to the sliding support plate 7, pipe 1 17, pipe 2 20 and pipe 3 23 are connected, and hydraulic oil can flow from hydraulic telescopic rod 1 2 through pipe 1 17, pipe 2 20 and pipe 3 23 into the base end of hydraulic telescopic rod 3 16.

[0017] Among them, a contact switch 22 is fixedly installed on the side of the head and neck fixation plate 9 near the transmission plate 11, and a solenoid valve 21 is fixedly installed on the pipe 17. The contact switch 22 and the solenoid valve 21 are electrically connected. The combination of the solenoid valve 21 and the contact switch 22 can prevent the transmission plates 11 on both sides from exerting too much force on the head and causing injury to the patient.

[0018] In practical use: Place the backrest 3 onto the seat back, adjust the position of the backrest 3 so that the hydraulic telescopic rod 2 is horizontal and its movable end is extended. Rotate the fastening screw 5 to securely fix the backrest 3 to the seat back. After the patient sits in the seat and leans back, the seat back moves backward, causing the backrest 3 to move towards the hydraulic telescopic rod 2. This causes the movable end of the hydraulic telescopic rod 2 to retract. The movable end of the hydraulic telescopic rod 2 compresses the hydraulic oil at its base, allowing it to flow into the hydraulic telescopic rod through pipe 17, pipe 19, and pipe 2 18. The base end of the second 6 drives the movable end of the hydraulic telescopic rod 26 to extend, causing the base end of the hydraulic telescopic rod 26 to move downward. The downward movement of the base end of the hydraulic telescopic rod 26 drives the sliding support plate 7 to move downward, and consequently the shoulder fixation plate 212 can also move downward. When the shoulder fixation plate 212 contacts the patient's shoulder, it stops moving downward, and the sliding support plate 7 continues to move downward until it is in contact with the shoulder fixation plate 212. The sliding support plate 7 and the shoulder fixation plate 212 move closer to each other, causing the guide rod 14 to drive the shoulder fixation plate 10 to rotate relative to the sliding support plate 7, thereby pressing down on the patient's shoulder, in conjunction with the shoulder fixation. Pressing plate 2 (12) secures the patient's upper body and determines the height of the patient's shoulders, facilitating subsequent head fixation. As the sliding support plate 7 and shoulder fixation plate 2 (12) approach each other, the switching slider 13 contacts the bottom of the return spring 8, causing the return spring 8 to move upward relative to the sliding support plate 7. This blocks pipe 19, stopping the downward movement of shoulder fixation plate 2 (12) and preventing excessive pressure on the patient's shoulder from further descent. At this point, pipe 2 (20) is connected, and hydraulic oil flows into the fluid system via pipe 1 (17), pipe 2 (20), and pipe 3 (23). Pressing the base end of the hydraulic telescopic rod 16 causes the movable end of the hydraulic telescopic rod 16 to extend. The extension of the movable end of the hydraulic telescopic rod 16 drives the transmission plates 11 on both sides to move closer to each other, which in turn drives the head and neck fixation plates 9 on both sides to move closer to each other. After the head and neck fixation plates 9 come into contact with the patient's head, the pressure control spring 15 is squeezed. When the pressure of the head and neck fixation plates 9 on the head reaches a certain threshold, the contact switch 22 comes into contact with the transmission plate 11. The contact switch 22 controls the solenoid valve 21 to close, and the hydraulic oil will no longer flow out from the base end of the hydraulic telescopic rod 12. The transmission plate 11 no longer moves, thus completing the fixation of the patient's head and neck.

[0019] In summary, if a person skilled in the art, inspired by this invention, designs a similar structure and embodiment without departing from the spirit of the invention, such design should fall within the scope of protection of this invention.

Claims

1. A neck and head fixation device for transcranial magnetic stimulation therapy, comprising a mounting frame (1), characterized in that: The mounting bracket (1) has a hydraulic telescopic rod 1 (2) fixedly mounted on its side wall. The movable end of the hydraulic telescopic rod 1 (2) is rotatably mounted with a connecting slider (4). A backing plate (3) is slidably mounted on the connecting slider (4). A sliding support plate (7) is symmetrically mounted on the backing plate (3). A hydraulic telescopic rod 2 (6) is fixedly mounted on the top of the sliding support plate (7). The hydraulic telescopic rod 2 (6) is fixedly connected to the backing plate (3). The hydraulic telescopic rod 2 (6) is hydraulically connected to the hydraulic telescopic rod 1 (2). A hydraulic telescopic rod 3 (16) is fixedly mounted inside the sliding support plate (7). The first hydraulic telescopic rod (2) is hydraulically connected to the third hydraulic telescopic rod (16). The movable end of the third hydraulic telescopic rod (16) is fixedly provided with a transmission plate (11). The transmission plate (11) is slidably provided with a head and neck fixing plate (9). The sliding support plate (7) is slidably provided with a guide rod (14). The bottom of the guide rod (14) is fixedly provided with a shoulder fixing plate (2) (12). The first shoulder fixing plate (10) is rotatably provided on the sliding support plate (7). The end of the guide rod (14) away from the second shoulder fixing plate (12) is slidably and rotatably connected with the first shoulder fixing plate (10).

2. The neck and head fixation device for transcranial magnetic stimulation therapy according to claim 1, characterized in that: A valve block sleeve (25) is fixedly installed inside the sliding support plate (7). A switching valve block (8) is slidably installed inside the valve block sleeve (25). A pipe (19) and a pipe (20) are opened on the switching valve block (8). A pipe (17) is provided between the base end of the hydraulic telescopic rod (2) and the valve block sleeve (25). A pipe (18) is provided between the valve block sleeve (25) and the base end of the hydraulic telescopic rod (6). The pipe (18) corresponds to the pipe (19). A pipe (23) is provided between the valve block sleeve (25) and the base end of the hydraulic telescopic rod (16). The pipe (23) corresponds to the pipe (20). A switching slider (13) is fixedly installed on the top of the shoulder fixing plate (12). The switching slider (13) is located directly below the switching valve block (8).

3. The neck and head fixation device for transcranial magnetic stimulation therapy according to claim 2, characterized in that: A pressure control spring (15) is fixed between the transmission plate (11) and the head and neck fixing plate (9). A contact switch (22) is fixed on the side of the head and neck fixing plate (9) near the transmission plate (11). A solenoid valve (21) is fixed on the first pipe (17). The contact switch (22) is electrically connected to the solenoid valve (21).

4. The neck and head fixation device for transcranial magnetic stimulation therapy according to claim 3, characterized in that: An airbag is fixedly provided on the surface of the head and neck fixing plate (9) away from the transmission plate (11), an airbag is fixedly provided at the bottom of the shoulder fixing plate one (10) away from the sliding support plate (7), and an airbag is fixedly provided at the bottom of the shoulder fixing plate two (12).

5. A neck and head fixation device for transcranial magnetic stimulation therapy according to claim 4, characterized in that: A return spring (24) is fixed between the bottom of the sliding support plate (7) and the backing plate (3).

6. A neck and head fixation device for transcranial magnetic stimulation therapy according to claim 5, characterized in that: The bottom of the backing plate (3) is provided with a groove, and the bottom side wall of the backing plate (3) is provided with fastening screws (5) in a symmetrical spiral pattern.

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