Adjustable human body MRI detection head fixing frame

Abstract

The utility model relates to medical instrument technical field, concretely for adjustable human body MRI detection head fixing frame, including support plate and support column, both sides of support plate upper end all are fixedly connected with the rubber board for limiting, the upper end of two rubber boards all are fixedly connected with the tight band, one side fixedly connected with the magic tape hair surface for fixed of tight band, the other side fixedly connected with magic tape hook face of tight band. The adjustable human body MRI detection head fixing frame, through the cooperation setting of support plate, rubber board and tight band, when using, rubber board can stick to the two sides of patient's head, on one hand, limit the head transverse displacement from the side, on the other hand, avoid the discomfort of the direct contact of rigid material to the head, provide the buffer protection for the patient, especially suitable for the patient with sensitive or scar head skin, and after the tightness of tight band, through the flexibility of rubber board, can carry out the targeted adaptation according to patient's head circumference, head form.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an adjustable human MRI head fixation frame. Background Technology

[0002] MRI, or magnetic resonance imaging, is not a single-dimensional technology but rather a multi-faceted classification and application encompassing imaging principles, clinical application sites, and image analysis dimensions. Its core function is to clearly present the structure, function, and pathological changes of human tissues through different sequences, parameters, and scanning strategies, providing precise evidence for clinical diagnosis. In mental health centers, head scans are a core application scenario when performing MRI examinations on patients with mental health issues. Cranial MRI screens for organic brain lesions such as brain tumors, brain atrophy, encephalitis lesions, and cerebrovascular abnormalities. It can effectively differentiate between primary mental disorders and mental symptoms caused by physical illnesses, providing crucial diagnostic evidence. In such examinations, the application of a head fixation frame is irreplaceable.

[0003] From the perspective of patient compatibility, psychiatric patients, such as those with anxiety disorders, schizophrenia, childhood mental disorders, or elderly cognitive impairment, often have low cooperation levels. Some patients may struggle due to fear of the closed scanning environment, while others may be unable to understand instructions to remain still due to cognitive impairment. Children are prone to head movements due to curiosity or anxiety. The use of a head fixation frame is not simply to restrict movement, but to reduce the discomfort of the patient's head being suspended in the air by providing stable support, thereby indirectly improving the patient's cooperation during the examination.

[0004] However, existing technologies have the following problems in practical use; Traditional devices have fixed dimensions, making it impossible to adapt them to the patient's head circumference and head shape when using them. The devices exhibit significant limitations and shortcomings in adaptability, especially when adapting to the diverse characteristics of psychiatric patients. Utility Model Content

[0005] (a) Technical problems to be solved In order to overcome the above-mentioned defects of the prior art, this utility model provides an adjustable human MRI head fixation frame, which solves the problem that the traditional equipment mentioned in the background art has a fixed size and cannot be adapted to the patient's head circumference and head shape when used by the patient. The equipment has significant limitations and shortcomings in adaptability, especially when adapting to the diverse characteristics of psychiatric patients.

[0006] (II) Technical Solution To achieve the above objectives, this utility model is implemented through the following technical solution: an adjustable human MRI head fixation frame, including a support plate and a support column. Both sides of the upper end of the support plate are fixedly connected with rubber plates for limiting position. The upper ends of the two rubber plates are fixedly connected with a tightening strap. One side of the tightening strap is fixedly connected with a Velcro hook side for fixation, and the other side of the tightening strap is fixedly connected with a Velcro hook side.

[0007] Preferably, a bearing is fixedly connected to the inner wall of the support column, and a positioning plate for limiting the position is fixedly connected to the lower end of the support column.

[0008] Preferably, the inner wall of the support column is fitted with a connecting shaft for positioning, and one end of the connecting shaft is engaged with the inner wall of the bearing.

[0009] Preferably, the lower end of the connecting shaft is fixedly connected to a turntable for fixing, and the upper end of the turntable is provided with a locking hole for limiting positioning.

[0010] Preferably, a pin for fixing is inserted into the upper end of the positioning disk, and the pin passes through one side of the positioning disk and is engaged with the inner wall of the locking hole.

[0011] Preferably, the outer surface of the upper end of the support column is fixedly connected with a lug for positioning, and the upper end of the lug is provided with a through hole for limiting the position.

[0012] Preferably, the inner wall of the through hole is provided with a fastening post, which is threaded through one side of the ear plate and connected to the inside of the support plate.

[0013] Preferably, the lower end of the turntable is fixedly connected to a load-bearing plate, and the upper end of the load-bearing plate is inserted with a threaded post for fixing.

[0014] (III) Beneficial Effects This utility model provides an adjustable head fixation frame for human MRI examination, which has the following beneficial effects: This adjustable head fixation frame for human MRI examination utilizes a combination of a support plate, a rubber plate, and a tightening strap. When used by a patient, the rubber plate conforms to both sides of the head, limiting lateral head movement and preventing discomfort from direct contact with hard materials, providing cushioning protection. This is particularly suitable for patients with sensitive scalp or scarring. Tightening the tightening strap allows for customized fit based on head circumference and shape, thanks to the flexibility of the rubber plate. The tightening strap, combined with the hook and loop sides of the Velcro, further enhances head fixation. By adjusting the length of the tightening strap and positioning the Velcro hook and loop sides appropriately, a wraparound restraint is created above the forehead, preventing back-and-forth head movement. The Velcro allows for quick and easy adjustment of tightness, accommodating patients with different head circumferences, from children with smaller heads to adults with larger heads, ensuring a stable and comfortable fixation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the support plate structure of this utility model; Figure 3 This is a schematic diagram of the connecting shaft structure of this utility model; Figure 4 This is a schematic diagram of the support column structure of this utility model.

[0016] In the diagram: 1. Support plate; 2. Support column; 3. Rubber plate; 4. Fastening strap; 5. Velcro rough surface; 6. Velcro hook surface; 7. Bearing; 8. Positioning plate; 9. Connecting shaft; 10. Turntable; 11. Locking hole; 12. Pin; 13. Ear plate; 14. Through hole; 15. Fastening column; 16. Load plate; 17. Threaded column. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] Example 1; Please see Figure 1 and Figure 2This utility model provides a technical solution: an adjustable human MRI head fixation frame. This adjustable human MRI head fixation frame is mainly used in scenarios where the head needs to be fixed during testing. It includes a support plate 1 and a support column 2. Rubber plates 3 for limiting position are fixedly connected to both sides of the upper end of the support plate 1. An elastic band 4 is fixedly connected to the upper end of each rubber plate 3. A Velcro loop 5 for fixing is fixedly connected to one side of the elastic band 4, and a Velcro hook 6 is fixedly connected to the other side of the elastic band 4. The rubber plates 3 fixed to both sides of the upper end of the support plate 1 can be made of medical-grade soft elastic rubber. The material is designed to be both flexible enough to conform to the head contours of different patients and retain moderate elasticity to maintain stable support, avoiding loss of restraint due to excessive softness or excessive pressure on the head. In addition, the medical-grade rubber material is MRI compatible, contains no metal components, does not produce artifact interference, and is easy to clean. It can be directly wiped with disinfectant wipes after each use to avoid the risk of cross-infection. It fully meets the dual requirements of mental health centers for the hygiene and safety of medical equipment and imaging compatibility, ensuring patient comfort and examination safety without affecting the clarity and diagnostic value of MRI images. Example 2; Please see Figures 1 to 3 A bearing 7 is fixedly connected to the inner wall of the support column 2. A positioning plate 8 for limiting is fixedly connected to the lower end of the support column 2. A connecting shaft 9 for positioning is inserted into the inner wall of the support column 2. One end of the connecting shaft 9 is engaged with the inner wall of the bearing 7. A turntable 10 for fixing is fixedly connected to the lower end of the connecting shaft 9. A locking hole 11 for limiting is opened at the upper end of the turntable 10. A pin 12 for fixing is inserted into the upper end of the positioning plate 8. The pin 12 passes through one side of the positioning plate 8 and is engaged with the inner wall of the locking hole 11. The bearing 7 on the inner wall of the support column 2 cooperates with the connecting shaft 9, allowing the connecting shaft 9 to rotate smoothly within the support column 2, thereby driving the turntable 10 at the lower end to rotate flexibly. The positioning plate 8 is fixed to the lower end of the support column 2, which restricts the relative position of the support column 2 and the structure below, ensuring the overall structure is stable when adjusting the connecting shaft 9 and the turntable 10. For example, when it is necessary to adjust the angle of the support plate 1 to adapt to the patient's special head posture, such as when the patient has neck discomfort and needs to tilt their head slightly, the turntable 10 is rotated, which drives the support plate 1 to rotate through the connecting shaft 9. The positioning plate 8 can prevent the lower end of the support column 2 from shifting, ensuring that the adjustment process is safe and controllable. At the same time, the cooperation between the pin 12 and the locking hole 11 allows the pin 12 to be inserted into the corresponding locking hole 11 after the turntable 10 rotates to the required angle, thereby fixing the turntable 10 and the positioning plate 8, and locking the rotation angle of the support plate 1. This prevents the angle of the support plate 1 from changing due to the patient's head movements or external force interference during the examination, which would affect the fixation effect and MRI imaging quality. Example 3; Please see Figure 1 and Figure 4The upper outer surface of the support column 2 is fixedly connected to a positioning ear plate 13. The upper end of the ear plate 13 is provided with a through hole 14 for limiting. The inner wall of the through hole 14 is provided with a fastening post 15. The fastening post 15 passes through the ear plate 13 and is threadedly connected to the inside of the support plate 1. The lower end of the turntable 10 is fixedly connected to a load-bearing plate 16. The upper end of the load-bearing plate 16 is inserted with a threaded post 17 for fixing. The ear plate 13 on the outer surface of the upper end of the support column 2 cooperates with the fastening column 15 through the through hole 14 to fix the support plate 1 and the support column 2 vertically, and firmly fix the support plate 1 on the support column 2 to ensure the stability of the connection between the support column 2 and the support plate 1. At the same time, the load plate 16 at the lower end of the turntable 10 plays the role of distributing and bearing the weight of the structure above, enhancing the contact stability between the entire fixing frame and the placement plane. Meanwhile, the threaded column 17 can fix the load plate 16 to the upper end of the placement plane.

[0019] In this invention, the working steps of the device are as follows: First, fix the entire frame to the top of the MRI examination bed. Wipe the components that come into direct contact with the patient, such as the support plate 1, rubber plate 3, and tightening straps 4, with a focus on cleaning the curved contact surface of the rubber plate 3. Simultaneously, guide the patient to lie down on the MRI examination bed with their head naturally placed in the center of the support plate 1. If the patient needs to adjust their head angle, pull out the pin 12 on the positioning plate 8, hold the turntable 10 with both hands, and slowly rotate it. Through the cooperation of the connecting shaft 9 and the bearing 7, the support plate 1 will rotate synchronously. After rotating to an angle that the patient finds comfortable, observe the alignment of the locking hole 11 with the positioning plate 8. Insert the pin 12 into the corresponding locking hole 11 to lock the rotation position of the support plate 1. Wrap the tightening straps 4 at the top of the rubber plates 3 on both sides towards the patient's forehead. Adjust the length of the tightening straps 4 and first initially attach the Velcro loop 5 of one side of the tightening strap 4 to the Velcro hook 6 of the other side. Gently pull the tightening strap 4 to feel the tightness, and then press the Velcro to ensure a firm adhesion and prevent the head from shaking back and forth.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable head fixation frame for human MRI examination, comprising a support plate (1) and a support column (2), characterized in that: Both sides of the upper end of the support plate (1) are fixedly connected with rubber plates (3) for limiting position. The upper ends of the two rubber plates (3) are fixedly connected with tension straps (4). One side of the tension straps (4) is fixedly connected with a Velcro hook side (5) for fixing. The other side of the tension straps (4) is fixedly connected with a Velcro hook side (6). The inner wall of the support column (2) is fixedly connected with a bearing (7). The lower end of the support column (2) is fixedly connected with a positioning plate (8) for limiting position. The inner wall of the support column (2) is inserted with a connecting shaft (9) for positioning. One end of the connecting shaft (9) is engaged with the inner wall of the bearing (7). The lower end of the connecting shaft (9) is fixedly connected to a turntable (10) for fixing. The upper end of the turntable (10) is provided with a locking hole (11) for limiting. The upper end of the positioning plate (8) is inserted with a pin (12) for fixing. The pin (12) passes through one side of the positioning plate (8) and is engaged with the inner wall of the locking hole (11). The outer surface of the upper end of the support column (2) is fixedly connected with an ear plate (13) for positioning. The upper end of the ear plate (13) is provided with a through hole (14) for limiting.

2. The adjustable human MRI head fixation frame according to claim 1, characterized in that: The inner wall of the through hole (14) is provided with a fastening post (15), which is threaded through one side of the ear plate (13) and connected to the inside of the support plate (1).

3. The adjustable human MRI head fixation frame according to claim 1, characterized in that: The lower end of the turntable (10) is fixedly connected to a load-bearing plate (16), and the upper end of the load-bearing plate (16) is inserted with a threaded post (17) for fixing.

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