A head positioning device for neurosurgical testing

Abstract

This invention provides a head positioning device for neurosurgical testing, belonging to the technical field of neurosurgical medical equipment. It includes a housing, with a first electric slide rail nested at the front end of the housing. A head fixation mechanism is installed at the output end of the first electric slide rail. A second electric slide rail is laterally installed at the front end of the housing. The head fixation mechanism is used to position and fix the patient's head. A noise reduction mechanism is installed at the front end of the housing, positioned below the head fixation mechanism. This noise reduction mechanism is used to fix the ears on both sides of the patient's head and reduce noise to alleviate the patient's anxiety. This invention solves the problems of physical sound insulation and psychological stress by fixing the patient's ears on both sides through the noise reduction mechanism. The bite fixation mechanism allows the patient's mouth to bite down on the bite device and supports the patient's jaw, preventing slight head movement and effectively improving the stability of the test data.

Description

Technical Field

[0001] This invention relates to the field of neurosurgical medical equipment technology, and in particular to a head positioning device for neurosurgical testing. Background Technology

[0002] In the fields of neurosurgical clinical diagnosis and treatment and medical imaging examinations, head positioning devices are indispensable key equipment. During the examination, the patient needs to lie flat or sit on the examination bed and remain relaxed. A quiet examination environment is required, and the patient must remain still, avoiding actions such as speaking, swallowing, and coughing to minimize interference. At this time, the electroencephalogram (EEG) machine begins to record the basic electrical activity of the brain. This process usually lasts 5 to 10 minutes. During this time, the patient should try to relax and avoid tension. These devices are mainly used to maintain the stability of the patient's head during various examinations and treatments to ensure the accuracy and safety of medical operations. As an important auxiliary tool, head positioning devices provide reliable technical support for the accurate implementation of neurosurgical diagnosis, and various types of head positioning devices have been widely used in the field of neurosurgery.

[0003] In existing head positioning devices, because the devices are based on standard head mold designs, it is difficult to adapt to the special physiological structures of patients with skull deformities or deep overbite. If positioning is achieved by fixing only the forehead, the patient may still experience displacement of the upper and lower jaws or slight mouth movements during the test. These slight movements lead to deviations in the test data. Furthermore, the patient's level of tension and comfort changes dynamically throughout the test, and noise fluctuations cause abnormalities in the basic electrical activity of the brain during the test. Therefore, it is difficult to conduct long-term tests, which reduces the accuracy of the test data. Therefore, this application provides a head positioning device for neurosurgical testing to meet the needs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a head positioning device for neurosurgical testing to address the problem that existing devices are based on standard head mold designs, which are difficult to adapt to the special physiological structures of patients with skull deformities and deep overbites. They rely solely on fixing the forehead, which leads to positioning deviation or slight movement during the testing process. Sometimes, due to the patient's tension, the basic electrical activity of the brain during testing is abnormal, making it difficult to conduct long-term testing and reducing the accuracy of the test data.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A head positioning device for neurosurgical examination includes a housing, a first electric slide rail nested at the front end of the housing, a head fixation mechanism installed at the output end of the first electric slide rail, and a second electric slide rail horizontally installed at the front end of the housing. The head fixation mechanism is used to position and fix the patient's head.

[0007] A noise reduction mechanism is installed at the front end of the housing, and the noise reduction mechanism is located below the head fixation mechanism. The noise reduction mechanism fixes the ears on both sides of the patient's head. The output end of the second electric slide rail is connected to an occlusal fixation mechanism, which fixes the patient's gums and mandible. The occlusal fixation mechanism includes a sliding seat, a fourth electric slide rail is installed on the top of the sliding seat, a fifth electric slide rail is installed on the bottom of the sliding seat, a chin fixation module is installed at the bottom output end of the fifth electric slide rail, and an occlusal module is installed at the output end of the fourth electric slide rail.

[0008] Optionally, a touch screen and a microphone are mounted on one side of the housing, with the microphone positioned above the touch screen.

[0009] Optionally, the head fixing mechanism includes an adjusting ring, one end of which is rotatably connected to an electric rotating seat. The electric rotating seat is installed at the output end of the first electric slide rail. A forehead fixing component is installed on one side of the outer wall of the adjusting ring. The adjusting ring is semi-arc and is configured in two sets. The adjusting ring is connected to the rotating seat and can rotate and open on both sides. An airbag is installed on the inner wall of the adjusting ring. The outer wall of the airbag is in contact with the inner wall of the adjusting ring. The airbag is connected to an inflation pump, which is installed at the output end of the first electric slide rail.

[0010] Optionally, the forehead fixing component includes a forehead pad, two sets of sponges are installed on the inner side of the forehead pad, an adjustment plate is rotatably connected to the middle of the outer wall of the forehead pad, the forehead pad and the adjustment plate are rotatably connected and the rotation range is degrees, and an electric adjustment seat is rotatably connected to the other end of the adjustment plate. The electric adjustment seat is installed on one side of the adjustment ring, and the adjustment plate is rotatably connected to one side of the adjustment ring through the electric adjustment seat.

[0011] Optionally, the noise reduction mechanism includes a third electric slide rail, which is installed at the front end of the housing. Ear brackets are rotatably connected to the front end of the third electric slide rail. Two sets of ear brackets are provided. A rotary motor is installed at the front end of the output end of the third electric slide rail. The output shaft of the rotary motor is connected to the ear brackets. The two sets of ear brackets are rotatably connected to the output end of the third electric slide rail through the rotary motor.

[0012] Optionally, an earcup is installed on the inner wall of the ear frame, and a ring of sponge is provided on the surface of the earcup. A pillow is installed on the output end of the third electric slide rail, and the pillow is located between the two sets of ear frames. The middle of the pillow is concave.

[0013] Optionally, the sliding seat is installed at the front end of the housing, an electric switch is installed on the inner side of the sliding seat, a support rod is installed on the top of the fourth electric slide rail, a fixed seat is fixedly connected to one end of the support rod, a support column is fixedly connected to one side of the fixed seat, two sets of support columns are provided, and a snap block is fixedly connected to the other end of the support column. A protruding plate is installed on the top and bottom of the snap block, multiple sets of fixing strips are provided on both sides of the protruding plate, and an engagement module is inserted into the outer side of the snap block.

[0014] Optionally, the occlusal module is provided with multiple sets of silicone dental trays at the top and bottom, the silicone dental trays are crescent-shaped, the occlusal module is provided with multiple sets of hooks on both sides, and the occlusal module is provided with through holes inside and on both sides.

[0015] Optionally, the chin fixing module includes a base, which is installed at the bottom of the fifth electric slide rail. An electric lead screw is installed on the top of the base, a motor is installed at the output end of the electric lead screw, and an adjusting rod is installed at the output end of the motor. The chin fixing module is installed below the engagement module.

[0016] Optionally, one end of the adjusting rod is rotatably connected to the bottom of the chin support, with a maximum rotation angle of 15 degrees. The chin support is configured in two sets, with a flexible support arm installed between the two sets of chin supports. The angle is adjusted by bending the flexible support arm.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] In the above scheme, an occlusal fixation mechanism is set up to adapt to the special physiological structure of patients with skull deformities and deep overbites. Medical staff guide patients to actively bite onto the occlusal module. The silicone dental arch is adapted to the shape of the patient's dental arch, achieving rigid constraint on the upper and lower jaws. This constraint force transmission system extends to the skull, fixing the patient's head as a whole, effectively suppressing the slight head movement caused by tooth movement during the test, and providing accuracy of the test results. At the same time, a snap-fit ​​block is set up so that the size of the occlusal module can be changed according to the size of the patient's oral cavity. The outer layer of the occlusal module is set with a disposable isolation film, which is fixed by hooks, isolating the patient's oral cavity environment and providing barrier protection. The edge of the film is surrounded by a sponge to absorb and process saliva and secretions in the patient's oral cavity.

[0019] With a head-fixing mechanism, the adjustable rings on both sides automatically conform to the patient's head. The combined action of the forehead sponge pad and airbag significantly improves patient comfort, making it suitable for long-term fixation during the examination. It can also be used for different head sizes, while preventing discomfort caused by large-area pressure on the patient's head. The forehead pad, which can rotate at a small angle, avoids local pressure concentration when contacting the forehead and evenly distributes pressure.

[0020] By incorporating a noise reduction mechanism, a rotary motor drives the earcups to rotate around an axis, allowing the earcup plane to precisely conform to the different tilt angles of the patient's ears. The noise reduction mechanism not only fixes the head but also ensures a tight fit between the earcups and the ears. Through the physical sound insulation of the headphones, it alleviates the patient's tension and anxiety during the testing process, improves tolerance, and also fixes the patient's ears. Since the ear cartilage also has a certain limiting effect, it can prevent the patient's head from turning slightly, thus avoiding affecting the test results. Attached Figure Description

[0021] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0022] Figure 1 A three-dimensional structural diagram of a head positioning device for neurosurgical testing;

[0023] Figure 2 A first-person perspective three-dimensional structural diagram of the head fixation mechanism;

[0024] Figure 3 A second-view three-dimensional structural diagram of the head fixation mechanism;

[0025] Figure 4 This is a three-dimensional structural diagram of the noise reduction mechanism;

[0026] Figure 5 A three-dimensional structural diagram of the interlocking and fixing mechanism;

[0027] Figure 6 This is a three-dimensional structural diagram of the occlusal module;

[0028] Figure 7 This is a three-dimensional structural disassembly diagram of the interlocking module;

[0029] Figure 8 This is a three-dimensional cross-sectional view of the chin fixing module.

[0030] Reference numerals: 1. Housing; 10. First electric slide rail; 11. Second electric slide rail; 12. Touch screen display; 13. Microphone; 2. Head fixing mechanism; 20. Adjustment ring; 200. Electric rotating base; 22. Airbag; 23. Inflation pump; 24. Forehead fixing assembly; 240. Forehead pad; 241. Sponge; 242. Electric adjustment base; 244. Adjustment plate; 3. Noise reduction mechanism; 30. Third electric slide rail; 31. Earcup; 32. Rotary motor; 33. Earmuff; 34. 4. Pillow; 5. Engagement and fixing mechanism; 6. Sliding seat; 7. Electric switch; 8. Fourth electric slide rail; 9. Fifth electric slide rail; 10. Support rod; 11. Fixing seat; 12. Support column; 13. Buckle block; 14. Protruding plate; 15. Fixing strip; 16. Engagement module; 17. Silicone dental tray; 18. Hook; 19. Chin fixing module; 20. Base; 21. Electric lead screw; 32. Chin support; 43. Adjusting rod; 44. Flexible support arm; 55. Nut.

[0031] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0032] The following is a detailed description of a head positioning device for neurosurgical detection provided by the present invention, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0033] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0034] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0035] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0036] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0037] like Figures 1 to 8 As shown, an embodiment of the present invention provides a head positioning device for neurosurgical examination, including a housing 1. A first electric slide rail 10 is nested at the front end of the housing 1. A head fixation mechanism 2 is installed at the output end of the first electric slide rail 10. The head fixation mechanism 2 is used to position and fix the patient's head. A noise reduction mechanism 3 is installed at the front end of the housing 1, located below the head fixation mechanism 2. The noise reduction mechanism 3 is used to fix the ears on both sides of the patient's head and reduce noise to alleviate the patient's tension. A second electric slide rail 11 is horizontally installed at the front end of the housing 1. An occlusal fixation mechanism 4 is connected to the output end of the second electric slide rail 11. The occlusal fixation mechanism 4 is used to fix the patient's gums and mandible. The occlusal fixation mechanism 4 includes a sliding seat 40. A fourth electric slide rail 41 is installed at the top of the sliding seat 40. A fifth electric slide rail 42 is installed at the bottom of the sliding seat 40. A chin fixation module 48 is installed at the bottom output end of the fifth electric slide rail 42. An occlusal module 47 is installed at the output end of the fourth electric slide rail 41.

[0038] As one implementation method in this embodiment, such as Figure 1As shown, a touch screen 12 and a microphone 13 are installed on one side of the housing 1. The microphone 13 is located above the touch screen 12. The housing 1 is used for dual-modal detection scenarios in sitting and supine positions, without the need for position conversion adaptation. The microphone 13 provides a communication channel between doctors and patients, transmitting sound to the patient's ears through the noise reduction mechanism 3. When the system is not in a detection state, the microphone 13 automatically enters a sleep mode to reduce power consumption. During the detection process, medical staff can turn on the microphone 13 in real time through the touch interface of the touch screen 12, effectively improving the communication efficiency between doctors and patients.

[0039] As one implementation method in this embodiment, such as Figure 2 and Figure 3 As shown, the head fixing mechanism 2 includes an adjusting ring 20. One end of the adjusting ring 20 is rotatably connected to an electric rotating seat 200, which is installed at the output end of the first electric slide rail 10. A forehead fixing component 24 is installed on one side of the outer wall of the adjusting ring 20. The adjusting ring 20 is semi-arc-shaped and consists of two sets, which are rotatably connected. The adjusting ring 20 is connected to the electric rotating seat 200 and can rotate and open on both sides. An airbag 22 is installed on the inner wall of the adjusting ring 20, and the outer wall of the airbag 22 is attached to the inner wall of the adjusting ring 20. The airbag 22 is connected to an air pump 23, which is installed at the output end of the first electric slide rail 10. The adjusting ring 20 is made of aluminum alloy, which reduces wear and tear from repeated use. The electric rotating seat 200 drives the adjusting ring 20 to automatically and precisely conform to the patient's head, and allows for multi-angle adjustment of the adjusting rings 20 on both sides. The angle changes of the adjusting rings 20 compress inward, causing the airbag 22 to flexibly conform to the patient's head. The airbag 22 is inflated by the air pump 23, reducing gaps between the airbag 22 and the patient's head, improving patient comfort, and preventing rigid impacts from hard equipment to the patient's head. Specifically, the electric rotating seat 200 can be a motor, mounted on the output end of the first electric slide rail 10. The motor's output shaft is connected to the adjusting ring 20. When the motor starts, the rotation of the motor's output shaft drives the adjusting ring 20 to rotate, achieving the closing and opening of the two sets of adjusting rings.

[0040] As one implementation method in this embodiment, such as Figure 2 and Figure 5As shown, the forehead fixation assembly 24 includes a forehead pad 240, with two sets of sponges 241 installed on the inner side of the forehead pad 240. An adjustment plate 244 is rotatably connected to the middle of the outer wall of the forehead pad 240. The forehead pad 240 and the adjustment plate 244 are rotatably connected, and the rotation range is 15 degrees. Specifically, a rotating shaft is installed on the adjustment plate 244, and the forehead pad 240 is installed on the rotating shaft. More specifically, the curvature of the adjustment plate 244 and the forehead pad 240 is not the same. When one end (inner end) of the forehead pad 240 contacts the adjustment plate 244, the other end (outer end) of the forehead pad 240 does not contact the adjustment plate 244. The inner end of the forehead pad 240 contacts the adjusting plate 244. Rotating the forehead pad 240 causes it to rotate around the axis of rotation until the outer end of the forehead pad 240 contacts the adjusting plate 244. During this process, the forehead pad 240 rotates 15 degrees. The other end of the adjusting plate 244 is rotatably connected to an electric adjusting seat 242, which is installed on one side of the adjusting ring 20. The adjusting plate 244 is rotatably connected to one side of the adjusting ring 20 via the electric adjusting seat 242. The forehead fixing component 24 is located on one side of the adjusting ring 20, allowing for easier entry and exit for the patient. Both the forehead pad 240 and the adjusting plate 244 are made of aluminum alloy. Small-amplitude rotation of the forehead pad 240 reduces discomfort caused by pressure on one side. Two sets of sponges 241 are used for sweat absorption and breathability, and also reduce pressure when the patient's forehead is compressed. Specifically, the electric adjusting base 242 can be a motor, which is mounted on the adjusting ring 20. The output shaft of the motor is connected to the adjusting plate 244. When the motor starts, the rotation of the motor's output shaft drives the adjusting plate 244 to rotate. As one embodiment of this work, such as... Figure 1 and Figure 4As shown, the noise reduction mechanism 3 includes a third electric slide rail 30, which is installed at the front end of the housing 1. The front end of the third electric slide rail 30 is rotatably connected to an ear bracket 31, which is configured as two sets. A rotary motor 32 is installed at the front end of the output end of the third electric slide rail 30, and the output shaft of the rotary motor 32 is connected to the ear bracket 31. An earmuff 33 is installed on the inner wall of the ear bracket 31, and a ring of sponge is provided on the surface of the earmuff 33. A pillow 34 is installed on the output end of the third electric slide rail 30, which is located between the two sets of ear brackets 31, and the middle of the pillow 34 is concave. The third electric slide rail 30 drives the ear bracket 31 to slide up and down, and the ear bracket 31 is rotated and opened by the rotary motor 32, automatically fitting the sides of the patient's ears. The sponge on the surface of the earcup 33 fits the patient's ears. The sponge material effectively reduces environmental noise through physical sound insulation, creating a quiet and comfortable testing environment for the patient. It has a significant emotional calming effect, especially for children, elderly patients, and people with special needs. The concave pillow 34 is made of silicone, which adds a support point for the patient's brain, which helps to reduce the area of ​​the patient's brain that is suspended during the test. The thickness transitions from the center to the edge, avoiding prolonged pressure on the brain.

[0041] As one implementation method in this embodiment, such as Figures 5 to 8 As shown, the sliding seat 40 is installed at the front end of the housing 1. An electric switch 400 is installed on the inner side of the sliding seat 40. A support rod 43 is installed on the top of the fourth electric slide rail 41. A fixed seat 44 is fixedly connected to the extended end of the support rod 43. A support column 45 is fixedly connected to one side of the fixed seat 44. The support column 45 is configured in two sets, and a latching block 46 is fixedly connected to the other end of the support column 45. A protruding plate 460 is installed on the top and bottom of the latching block 46. Multiple sets of fixing strips 461 are arranged on both sides of the protruding plate 460. An engagement module 47 is inserted into the outer side of the latching block 46. When the patient feels discomfort, pressing the electric switch 400 stops the entire machine during the detection process. The triggering force of the electric switch 400 is 4N. To prevent accidental activation by the patient, the electric switch 400 can automatically release the head fixation mechanism 2, noise reduction mechanism 3, and occlusal fixation mechanism 4 through the program settings of the control center (not marked in the figure), allowing the patient to quickly detach from the device. The touch screen 12 flashes red across the entire screen. The top and bottom of the latch block 46 form inclined contact with the inner contour of the occlusal module 47. The inner side of the occlusal module 47 has a groove, and the protrusion 460 on the latch block 46 is inserted into the groove of the occlusal module 47. The fixing strip 461 increases the friction and can be adjusted by the patient to different limits, so that the opening and closing angle of the occlusal module 47 is reduced, and the range of motion angle of the patient's temporomandibular joint is also reduced.

[0042] As one implementation method in this embodiment, such as Figures 6 to 7As shown, the occlusal module 47 has multiple sets of silicone dental trays 470 at the top and bottom. The silicone dental trays 470 are crescent-shaped. Multiple sets of hooks 471 are provided on both sides of the occlusal module 47. Through holes are provided inside and on both sides of the occlusal module 47. The occlusal module 47 is made of silicone. The through holes inside promote the flow of air inside the patient's mouth during biting. At the same time, the size of the occlusal module 47 can be changed for different patients. The crescent-shaped silicone dental trays 470 conform to the contour of the patient's teeth. Multiple sets of hooks 471 are used to attach the film. A layer of annular sponge is provided on the outside of the film. At this time, the occlusal module 47 provides forced restraint to the patient, preventing the patient from speaking, swallowing, coughing and other actions, thus reducing interference.

[0043] As one implementation method in this embodiment, such as Figure 8 As shown, the chin fixing module 48 includes a base 480, which is installed at the bottom of the fifth electric slide rail 42. An electric lead screw 482 is installed on the top of the base 480, connected to the output end of a motor. A lead screw nut 486 is installed on the electric lead screw 482, and an adjusting rod 484 is installed on the lead screw 486. The chin fixing module 48 is installed below the engagement module 47. One end of the adjusting rod 484 is rotatably connected to the bottom of the chin support 483, with a maximum rotation angle of 15 degrees. Two sets of chin supports 483 are configured, and the two sets of chin supports 483 are connected... A flexible support arm 485 is installed, and its angle is adjusted by bending. An electric screw 482 drives the chin support 483 to slide laterally, while the adjusting rod 484 extends and retracts in a directional manner. The chin support 483 is made of silicone and supports the patient's chin and inner chin. A gap in the middle accommodates different chin points for different patients. The two sets of chin supports 483, connected by the flexible support arm 485, form an arched connection structure adjusted according to the patient's chin. The central support space conforms to the contour of the patient's chin, effectively supporting it. Specifically, a rotating shaft is installed on the nut 486, connected to one end of the adjusting rod 484. A motor (not shown in the diagram) is installed on the nut 486, and the motor's output shaft is connected to the rotating shaft. When the motor starts, the output shaft rotates, causing the rotating shaft to rotate, thus adjusting the angle between the adjusting rod 484 and the nut 486.

[0044] The first electric slide, the second electric slide rail 11, the third electric slide rail 30, the fourth electric slide rail 41, and the fifth electric slide rail 42 in this embodiment can be electric lead screws or electric push rods, etc., which will not be described in detail in this embodiment.

[0045] The working principle of the technical solution provided by this invention is as follows:

[0046] First, medical staff need to inform patients in advance that they need to wash their hair the day before the test, and that patients should avoid taking sleeping pills, anti-epileptic drugs, or other drugs that affect the nervous system within 24 hours before the test. Special circumstances should be informed to medical staff in advance. Before the test, patients should ensure that they get enough sleep and avoid fatigue and hunger, so as not to affect the test results.

[0047] When a patient's head needs to be examined, medical staff guide the patient into the head positioning device. The housing 1 can be adjusted to a sitting or lying position for installation according to the testing requirements. Medical staff operate the touch screen 12 to activate various fixation mechanisms through the control center (not shown in the figure). When the patient sits or lies down and places their head in the corresponding position, the head fixation mechanism 2 adjusts up and down from above via the first electric slide rail 10 and automatically conforms to the patient's head. At the same time, the airbag 22 is driven by the air pump 23, and the airbag 22 slowly inflates. The adjustment rings 20 on both sides rotate inward through the electric rotating seat 200. When they rotate to a certain extent, they are inflated inward through the synchronous airbag 22. The adjustment rings 20 automatically stop rotating after a certain extent, so that the two sides can fit against the sides of the patient's skull. At this time, the electric adjustment seat 242 fixed on one side of the outer wall of the adjustment ring 20 drives the adjustment plate 244 to rotate on one side, so that the forehead fixing component 24 rotates to the position of the patient's forehead. The forehead pad 240 rotates slightly, so that the inner sponge 241 is evenly pressed on the patient's forehead.

[0048] Simultaneously, the noise reduction mechanism 3 slides up and down to the patient's ear position via the third electric slide rail 30, so that the pillow 34 supports the back of the patient's head. At this time, the ear bracket 31 rotates inward via the rotary motor 32 at one end. When the earcup 33 fits the patient's ear, the ear bracket 31 stops rotating, and the noise reduction effect is achieved through the sponge around the surface of the earcup 33. Physical sound insulation can reduce the patient's tension during the examination process. The sponge material effectively reduces environmental noise through the principle of physical sound insulation, creating a quiet and comfortable examination environment for the patient and alleviating the patient's anxiety during the examination.

[0049] The occlusal fixation mechanism 4 is driven by the second electric slide rail 11, and moves laterally to the patient's side. The fourth electric slide rail 41 drives the fixation seat 44 to move via the support rod 43, and the fixation seat 44 drives the locking block 46 to move via the pillar 45. The protrusion 460 on the locking block 46 is inserted into the groove of the occlusal module 47. The fixing strip 461 increases the friction and can be adjusted by the patient to different limits, so that the opening angle of the occlusal module 47 is smaller, and the range of motion of the patient's temporomandibular joint is smaller. The size of the occlusal module 47 can be changed according to the size of the patient's mouth. At this time, the locking block 46 drives the occlusal module 47 to move into the patient's mouth (e.g. Figure 7As shown, the outer layer of the occlusal module 47 is provided with a disposable isolation film. This disposable film is fixed by hooks 471, isolating the patient's oral cavity environment and providing barrier protection. A sponge is surrounded by the edge of the film to absorb and process saliva and secretions in the patient's mouth. At this time, the silicone mouthplate 470 fits perfectly with the patient's tooth structure. The occlusal module 47 is made of silicone and has multiple sets of through holes inside to promote the flow of air inside the patient's mouth. By fixing the inside of the patient's mouth through the occlusal module 47, the constraint force fixes the patient's head as a whole. At the same time, when the patient bites on the silicone mouthplate 470, the position between the upper and lower teeth does not change, avoiding slight head displacement caused by tooth movement, and avoiding actions such as speaking, swallowing, and coughing, thus reducing interference.

[0050] Finally, the chin fixing module 48 is driven to move vertically by the fifth electric slide rail 42 on the sliding seat 40, so that the chin fixing module 48 fits against the patient's chin. It can also move laterally by the electric screw 482 on the base 480. At this time, the chin support 483 fits against the patient's chin area by the steering extension and retraction of the adjusting rod 484. Medical staff use the flexible support arm 485 (not marked in the figure) between the two sets of chin supports 483 to form an arched connection structure according to the patient's chin. The central support space fits the contour of the patient's chin, thus completing the effective support of the chin.

[0051] After the head positioning device stabilizes the patient's head, the head is examined. Medical staff will attach electrodes to specific areas of the patient's scalp using a special conductive gel. These locations cover different areas of the brain and are used to collect brainwave signals. After the electrodes are installed, the patient must remain still. At this time, the electroencephalogram (EEG) machine begins to record the basic electrical activity of the brain. This process usually lasts 5 to 10 minutes. To more accurately detect abnormal brainwave activity, sometimes a provocation test is required. Medical staff can use the microphone 13 on the side of the casing 1 to transmit voice messages to the patient to perform an eye-opening and closing test. During the voice transmission, the patient is instructed to open and close their eyes. At this time, medical staff observe the changes in brainwaves and record the data. This eliminates the need for medical staff to speak loudly to patients with hearing impairments, reducing the physical burden on medical staff.

[0052] To more accurately detect abnormal brain electrical activity, provocation tests are often required. Common tests include the eye-opening and closing test, in which the patient opens and closes their eyes as instructed during the recording process to observe changes in brain waves; the flash stimulation test, which uses strong light of different frequencies to stimulate the eyes and observe the brain's electrical activity response; and for patients suspected of having epilepsy, the hyperventilation test may also be performed, in which the patient takes rapid, deep breaths for about 3 minutes to induce potential epileptiform discharges.

[0053] After completing the above steps, the medical staff will remove the electrodes, wipe the conductive cream off the scalp, and as the medical staff lightly touch the display screen 12 to unlock the device, the head fixation mechanism 2, the noise reduction mechanism 3, and the bite fixation mechanism 4 will automatically return to their initial state, and the patient can leave. The medical staff will then wipe the device and install a new disposable film on the bite module 47, and arrange for the next patient to continue the test, thus improving the testing efficiency.

[0054] In case of sudden discomfort or emergency, the patient can immediately press the electric switch 400 located on the side of the sliding seat 40. The electric switch 400 can be quickly released through the settings of the head fixation mechanism 2, noise reduction mechanism 3 and bite fixation mechanism 4 by the control center (not marked in the figure), so that the patient can quickly get off the device.

[0055] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0056] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A head positioning device for use in neurosurgical detection, comprising a housing, characterized in that, The first electric sliding rail is installed at the front end of the shell, and a head fixing mechanism is installed at the output end of the first electric sliding rail. A noise reduction mechanism is installed at the front end of the shell and below the head fixing mechanism. The output end of the second electric sliding rail is connected with a bite fixing mechanism, the bite fixing mechanism fixes the gums and the lower jaw of the patient, and the bite fixing mechanism comprises a sliding seat, a fourth electric sliding rail is installed at the top of the sliding seat, a fifth electric sliding rail is installed at the bottom of the sliding seat, a chin fixing module is installed at the bottom output end of the fifth electric sliding rail, and a bite module is installed at the output end of the fourth electric sliding rail. The sliding seat is installed at the front end of the shell, an electric switch is installed at the inner side of the sliding seat, a support rod is installed at the top of the fourth electric sliding rail, one end of the support rod is fixedly connected with a fixing seat, one side of the fixing seat is fixedly connected with a support column, the support column is provided in two groups, the other end of the support column is fixedly connected with a buckle block, convex plates are installed at the top and the bottom of the buckle block, a plurality of fixing strips are arranged at the two sides of the convex plates, and the bite module is inserted into the outer side of the buckle block. A plurality of silica gel tooth trays are arranged at the top and the bottom of the bite module, the silica gel tooth tray is in the shape of a crescent moon, a plurality of hooks are arranged at the two sides of the bite module, and through holes are formed in the interior and the two sides of the bite module. The chin fixing module comprises a base, the base is installed at the bottom of the fifth electric sliding rail, an electric lead screw is installed at the top of the base, a motor is installed at the output end of the electric lead screw, an adjusting rod is installed at the output end of the motor, and the chin fixing module is installed below the bite module. One end of the adjusting rod is rotatably connected with the bottom of a chin support, the maximum rotation angle is 15 degrees, the chin support is provided in two groups, and a flexible support arm is installed between the two groups of chin supports to adjust the angle. The bite module is made of silica gel and is internally provided with a plurality of through holes to promote the flow of gas in the patient's oral cavity; the buckle block can be replaced according to the size of the patient's oral cavity, the outer layer of the bite module is provided with a disposable isolation film, the disposable isolation film is fixed by the hooks, and the disposable isolation film is externally provided with a layer of annular sponge.

2. The head positioning device for neurosurgical detection according to claim 1, characterized in that, A touch display screen and a microphone are installed on one side of the shell, and the microphone is arranged above the touch display screen.

3. The head positioning device for neurosurgical detection according to claim 2, characterized in that The head fixing mechanism comprises an adjusting ring, one end of the adjusting ring is rotatably connected with an electric rotating seat, the electric rotating seat is installed at the output end of the first electric sliding rail, a forehead fixing assembly is installed on one side of the outer wall of the adjusting ring, the adjusting ring is semicircular and is provided in two groups, the adjusting ring is rotatably connected to the electric rotating seat and is opened and closed on both sides, an air bag is installed on the inner wall of the adjusting ring, the air bag is attached to the inner wall of the adjusting ring, the air bag is in communication with an air pump, and the air pump is installed on the output end of the first electric sliding rail.

4. The head positioning device for neurosurgery detection according to claim 3, characterized in that, The forehead fixing assembly comprises a forehead pad, two groups of sponges are mounted in the forehead pad, an adjusting plate is rotationally connected to the middle part of the outer wall of the forehead pad, the forehead pad and the adjusting plate are rotationally connected, and the rotation range is 30°, one end of the adjusting plate is rotationally connected to an electric adjusting base, the electric adjusting base is mounted on one side of an adjusting ring, and the adjusting plate is rotationally connected to one side of the adjusting ring through the electric adjusting base.

5. The head positioning device for neurosurgical detection according to claim 4, characterized in that The noise reduction mechanism comprises a third electric sliding rail, the third electric sliding rail is mounted at the front end of the shell, an ear holder is rotationally connected to the front end of the third electric sliding rail, the ear holder is provided in two groups, a rotary motor is mounted at the front end of the output end of the third electric sliding rail, the output shaft of the rotary motor is connected to the ear holder, and the two groups of ear holders are rotationally connected to the output end of the third electric sliding rail through the rotary motor.

6. The head positioning device for neurosurgical detection according to claim 5, characterized in that An ear cover is mounted on the inner wall of the ear holder, a ring of sponges is arranged on the surface of the ear cover, a protective pillow is mounted on the output end of the third electric sliding rail, the protective pillow is located between the two groups of ear holders, and the middle part of the protective pillow is concave.

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