A neurointerventional head fixation device
By using a magnetorheological elastomer and a cylinder-driven adjustable support module, combined with temperature and humidity control and infrared detection, the problem of poor adjustment flexibility in traditional head fixation devices has been solved. This enables automatic adjustment and stable fixation of the head during neurointerventional surgery, improving the precision and safety of the procedure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG PROVINCIAL PEOPLES HOSPITAL
- Filing Date
- 2026-04-30
- Publication Date
- 2026-06-09
AI Technical Summary
Traditional head fixation devices rely on manual adjustment in neurointerventional surgery, which has poor adjustment flexibility and cannot be dynamically adjusted according to the patient's head shape and surgical position, affecting the accuracy and safety of the operation.
The adjustable support module, driven by a magnetorheological elastomer and a cylinder, combined with temperature and humidity control and infrared detection, achieves automatic adjustment to fit the head and provides dynamic support and stable fixation by adjusting the stiffness through magnetic field control.
It achieves automatic adjustment and stable fixation of the head, improving the precision and safety of the surgery, reducing the impact of patient micro-movements, and enhancing the flexibility and comfort of the operation.
Smart Images

Figure CN122163415A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical devices, and in particular to a neurointerventional head fixation device. Background Technology
[0002] Head fixation is crucial in neurointerventional surgery, primarily to ensure the precision, safety, and stability of the procedure, preventing even minor patient movements from affecting high-precision operations. Commonly used head fixation devices in neurointerventional surgery include the Doro head frame and the Mayfield three-point head frame. The Doro head frame uses an isosceles triangle with three screws for fixation, while the Mayfield three-point head frame uses a rigid three-point fixation. Traditional head fixation devices mostly employ rigid structures. While providing high stability, they still have several drawbacks, such as the inability to dynamically adjust the support shape according to the patient's head shape and surgical position, relying on manual adjustments by medical staff, and the inability to actively adjust based on patient feedback. Summary of the Invention
[0003] To address the technical problem of traditional head fixation devices relying on manual adjustment and lacking flexibility, the present invention proposes a neurointerventional head fixation device comprising a base plate, a temperature and humidity control module disposed above the base plate, a first detection module and a second detection module symmetrically disposed below the temperature and humidity control module, a first sliding track disposed below the first detection module, a second sliding track symmetrical to the first sliding track disposed below the second detection module, an occipital bone support module disposed between the first and second sliding tracks, a first fixation support module, an infrared detection module and a second fixation support module being disposed sequentially from top to bottom in the first sliding track, and a first adjustable support module and a second adjustable support module being disposed sequentially from top to bottom in the second sliding track.
[0004] Furthermore, the first detection module includes a first support unit, a fourth cylinder, and a first detection unit. The bottom of the first support unit is connected to a substrate, the top side of the first support unit is connected to the fourth cylinder, and the end face of the fourth cylinder is connected to the first detection unit. A thin-film pressure sensor is disposed on the surface of the first detection unit, and an acceleration sensor is disposed inside the first detection unit. The second detection module includes a second support unit, a ninth cylinder, and a second detection unit. The bottom of the second support unit is connected to a substrate, the top side of the second support unit is connected to the ninth cylinder, and the end face of the ninth cylinder is connected to the second detection unit. A thin-film pressure sensor is disposed on the surface of the second detection unit, and an acceleration sensor is disposed inside the second detection unit.
[0005] Furthermore, the infrared detection module includes a third movable substrate, which is movably disposed on a first sliding track. A third cylinder is disposed on the third movable substrate, and a third fixed base is disposed on the end face of the third cylinder. The third fixed base is connected to an infrared camera.
[0006] Furthermore, the first fixed support module includes a first movable base plate, which is movably disposed on a first sliding rail. A first cylinder is disposed on the first movable base plate, and a first fixed base is disposed on the end face of the first cylinder. The first fixed base is connected to the side support unit. The second fixed support module includes a second movable base plate, which is movably disposed on the first sliding rail. A second cylinder is disposed on the second movable base plate, and a second fixed base is disposed on the end face of the second cylinder. The second fixed base is connected to the side support unit.
[0007] Furthermore, the first adjustable support module includes a fourth movable base plate, which is movably disposed on the second sliding rail. A fifth cylinder is disposed on the fourth movable base plate, and a fourth fixed base is disposed on the end face of the fifth cylinder. The fourth fixed base 73 is connected to a sixth cylinder, and a side support unit is connected to the end face of the sixth cylinder. The second adjustable support module includes a fifth movable base plate, which is movably disposed on the second sliding rail. A seventh cylinder is disposed on the fifth movable base plate, and a fifth fixed base is disposed on the end face of the seventh cylinder. The fifth fixed base is connected to an eighth cylinder, and a side support unit is connected to the end face of the eighth cylinder.
[0008] Furthermore, the side support unit includes a base, a first magnetorheological elastomer is disposed on the surface of the base, the first magnetorheological elastomer is sealed by a first flexible silicone, a magnetic field control circuit and an electromagnetic coil array are disposed inside the base, and a miniature pressure sensor array is embedded in the first flexible silicone.
[0009] Furthermore, the occipital bone support module includes a left support unit and a right support unit, and a temperature and humidity sensor is provided between the left support unit and the right support unit.
[0010] Furthermore, the left support unit includes a first support base, a first support plate is disposed on the left side of the first support base, a second magnetorheological elastomer is disposed between the first support base and the first support plate, and the second magnetorheological elastomer is sealed with a second flexible silicone sealant. The right support unit includes a second support base, a second support plate is disposed on the right side of the second support base, a third magnetorheological elastomer is disposed between the second support base and the second support plate, and the third magnetorheological elastomer is sealed with a third flexible silicone sealant.
[0011] Furthermore, an air supply fan unit is provided at the top inner side of the temperature and humidity control module, and an air intake fan unit is provided at the bottom inner side of the temperature and humidity control module. The air intake fan is connected to the air outlet on the outside of the temperature and humidity control module through a pipe. A first solenoid valve is provided at the air outlet. A dehumidification unit is connected between the air intake fan and the air supply fan unit through a pipe. A temperature control unit is provided outside the pipe between the dehumidification unit and the air supply fan unit. A second solenoid valve is provided between the air intake fan and the dehumidification unit. An air inlet on the outside of the temperature and humidity control module is connected between the dehumidification unit and the temperature control unit through a pipe. A third solenoid valve is provided at the air inlet.
[0012] Furthermore, the operating modes of the temperature and humidity control module include a first mode and a second mode. Based on the data from the temperature and humidity sensor, the humidity value and temperature value are obtained. When only the humidity value is greater than the set threshold, the module enters the first mode, and when the temperature value is greater than the set threshold, the module enters the second mode.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] By adjusting the stiffness of magnetorheological elastomers, a more fitting and secure fixation can be achieved, suppressing micro-movements of the head during surgery. This transforms fixation from point fixation to surface fixation, improving the fixation effect in terms of adjustment flexibility and fixation stability. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of the neurointerventional head fixation device of the present invention;
[0016] Figure 2 This is a schematic diagram of the left side of the neurointerventional head fixation device of the present invention;
[0017] Figure 3 This is a schematic diagram of the right side of the neurointerventional head fixation device of the present invention;
[0018] Figure 4 This is a schematic diagram of the occipital bone support module of the present invention;
[0019] Figure 5 This is a schematic diagram of the side support unit of the present invention;
[0020] Figure 6 This is a schematic diagram of the temperature and humidity control module of the present invention.
[0021] In the diagram: 1. Base plate; 2. First sliding rail; 3. Second sliding rail; 4. First fixed support module; 41. First moving base plate; 42. First cylinder; 43. First fixed base; 5. Second fixed support module; 51. Second moving base plate; 52. Second cylinder; 53. Second fixed base; 6. Infrared detection module; 61. Third moving base plate; 62. Third cylinder; 63. Third fixed base; 64. Infrared camera; 7. First adjustable support module; 71. Fourth moving base plate; 72. Fifth cylinder; 73. Fourth fixed base; 74. Sixth cylinder; 8. Second adjustable support module; 81. Fifth moving base plate; 82. Seventh cylinder; 83. Fifth fixed base; 84. Eighth cylinder; 9. First detection module; 91. First support unit; 92. Fourth cylinder; 93. First detection unit; 10. Second detection module; 1 01. Second support unit; 102. Ninth cylinder; 103. Second detection unit; 11. Temperature and humidity control module; 111. Suction fan unit; 112. Dehumidification unit; 113. Temperature control unit; 114. Air supply fan unit; 115. First solenoid valve; 116. Second solenoid valve; 117. Third solenoid valve; 12. Occipital support module; 121. Left side support unit; 1211. First support base; 1212. Second magnetorheological elastomer; 1213. First support plate; 1214. Second flexible silicone; 122. Right side support unit; 1221. Second support base; 1222. Third magnetorheological elastomer; 1223. Second support plate; 1224. Third flexible silicone; 123. Temperature and humidity sensor; 13. Side support unit; 131. Base; 132. First flexible silicone; 133. First magnetorheological elastomer. Detailed Implementation
[0022] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.
[0023] like Figure 1As shown, the neurointerventional head fixation device proposed in this invention includes a base plate 1. A temperature and humidity control module 11 is disposed above the base plate 1. A first detection module 9 and a second detection module 10 are symmetrically disposed below the temperature and humidity control module 11. A first sliding track 2 is disposed below the first detection module 9. A second sliding track 3, symmetrical to the first sliding track 2, is disposed below the second detection module 10. An occipital bone support module 12 is disposed between the first sliding track 2 and the second sliding track 3. In the first sliding track 2, a first fixing support module 4, an infrared detection module 6, and a second fixing support module 5 are disposed sequentially from top to bottom. In the second sliding track 3, a first adjustable support module 7 and a second adjustable support module 8 are disposed sequentially from top to bottom.
[0024] The base plate 1 is equipped with a central control circuit, which communicates with the first detection module 9, the second detection module 10, the first sliding rail 2, the second sliding rail 3, the first fixed support module 4, the infrared detection module 6, the second fixed support module 5, the first adjustable support module 7, the second adjustable support module 8, the temperature and humidity control module 11, and the occipital support module 12 to control the working process of the nerve intervention head fixation device.
[0025] Combined with appendix Figure 1 and attached Figure 2 As can be seen, the first fixed support module 4 includes a first movable base plate 41, which is movably disposed on the first sliding rail 2. A first cylinder 42 is disposed on the first movable base plate 41, and a first fixed base 43 is disposed on the end face of the first cylinder 42. The first fixed base 43 is connected to the side support unit 13. The second fixed support module 5 includes a second movable base plate 51, which is movably disposed on the first sliding rail 2. A second cylinder 52 is disposed on the second movable base plate 51, and a second fixed base 53 is disposed on the end face of the second cylinder 52. The second fixed base 53 is connected to the side support unit 13. The infrared detection module 6 includes a third movable base plate 61, which is movably disposed on the first sliding rail 2. A third cylinder 62 is disposed on the third movable base plate 61, and a third fixed base 63 is disposed on the end face of the third cylinder 62. The third fixed base 63 is connected to the infrared camera 64. The first detection module 9 includes a first support unit 91, a fourth cylinder 92, and a first detection unit 93. The bottom of the first support unit 91 is connected to the base plate 1, the top side of the first support unit 91 is connected to the fourth cylinder 92, the end face of the fourth cylinder 92 is connected to the first detection unit 93, a thin film pressure sensor is provided on the surface of the first detection unit 93, and an acceleration sensor is provided inside the first detection unit 93.
[0026] Combined with appendix Figure 1 and attached Figure 3It can be seen that the first adjustable support module 7 includes a fourth movable base plate 71, which is movably disposed on the second sliding rail 3. A fifth cylinder 72 is disposed on the fourth movable base plate 71, and a fourth fixed base 73 is disposed on the end face of the fifth cylinder 72. The fourth fixed base 73 is connected to a sixth cylinder 74, and a side support unit 13 is connected to the end face of the sixth cylinder 74. The second adjustable support module 8 includes a fifth movable base plate 81, which is movably disposed on the second sliding rail 3. A seventh cylinder 82 is disposed on the fifth movable base plate 81, and a fifth fixed base 83 is disposed on the end face of the seventh cylinder 82. The fifth fixed base 83 is connected to an eighth cylinder 84, and a side support unit 13 is connected to the end face of the eighth cylinder 84. The second detection module 10 includes a second support unit 101, a ninth cylinder 102, and a second detection unit 103. The bottom of the second support unit 101 is connected to the base plate 1, the top side of the second support unit 101 is connected to the ninth cylinder 102, the end face of the ninth cylinder 102 is connected to the second detection unit 103, a thin film pressure sensor is provided on the surface of the second detection unit 103, and an acceleration sensor is provided inside the second detection unit 103.
[0027] like Figure 5 As shown, the side support unit 13 includes a base 131, on which a first magnetorheological elastomer 133 is disposed, and sealed by a first flexible silicone rubber 132. The first magnetorheological elastomer 133 is made of silicone rubber-based magnetorheological elastomer, with micron-sized carbonyl iron powder particles uniformly dispersed inside. The silicone rubber base is medical-grade silicone rubber, possessing biocompatibility and anti-aging properties. Its internal porosity is designed to be 15%-20%, facilitating uniform dispersion of the carbonyl iron powder particles and preventing sedimentation. The base 131 contains a magnetic field control circuit and an electromagnetic coil array. The magnetic field control circuit receives control signals and generates a magnetic field of specific intensity through the electromagnetic coil array to control the stiffness of the first magnetorheological elastomer 133. The first flexible silicone rubber 132 incorporates a micro pressure sensor array for real-time detection of the pressure distribution on the surface of the side support unit 13.
[0028] like Figure 4As shown, the occipital support module 12 includes a left support unit 121 and a right support unit 122. A temperature and humidity sensor 123 is disposed between the left support unit 121 and the right support unit 122. The left support unit 121 and the right support unit 122 support the area where the occipital bone is located from both sides, providing a stable foundation for head fixation while leaving an air circulation channel to improve comfort. The temperature and humidity sensor 123 is used to detect the temperature and humidity under the head, providing a basis for temperature and humidity control. The left support unit 121 includes a first support base 1211, a first support plate 1213 is disposed on the left side of the first support base 1211, and a second magnetorheological elastomer 1212 is disposed between the first support base 1211 and the first support plate 1213. The second magnetorheological elastomer 1212 is sealed by a second flexible silicone 1214. The right-side support unit 122 includes a second support base 1221, a second support plate 1223 on the right side of the second support base 1221, and a third magnetorheological elastomer 1222 between the second support base 1221 and the second support plate 1223. The third magnetorheological elastomer 1222 is sealed by a third flexible silicone 1224. The structures of the second and third magnetorheological elastomers 1212 and 1222 are the same as those of the first magnetorheological elastomer 1303. Both the second and third flexible silicone 1214 contain miniature pressure sensor arrays for real-time detection of pressure distribution on the surface of the support unit. Both the first and second support bases 1211 and 1221 contain magnetic field control circuits and electromagnetic coil arrays. The magnetic field control circuit receives control signals and generates a magnetic field of a specific intensity through the electromagnetic coil array to control the stiffness of the corresponding magnetorheological elastomer.
[0029] like Figure 6As shown, a blower fan unit 114 is located at the top inner side of the temperature and humidity control module 11, and a suction fan unit 111 is located at the bottom inner side of the temperature and humidity control module 11. The suction fan 111 is connected to an air outlet located on the outside of the temperature and humidity control module 11 via a pipe. A first solenoid valve 115 is located at the air outlet. A dehumidification unit 112 is connected between the suction fan 111 and the blower fan unit 114 via a pipe. A temperature control unit 113 is located outside the pipe between the dehumidification unit 112 and the blower fan unit 114. A second solenoid valve 116 is located between the suction fan 111 and the dehumidification unit 112. An air inlet located on the outside of the temperature and humidity control module 11 is connected between the dehumidification unit 112 and the temperature control unit 113 via a pipe. A third solenoid valve 117 is located at the air inlet. The first solenoid valve 115, the second solenoid valve 116, and the third solenoid valve 117 are V2A miniature solenoid valves. The dehumidification unit 112 contains a molecular sieve, a synthetic aluminosilicate crystal with numerous neatly arranged, uniformly sized micropores that exhibit strong water adsorption capacity. The temperature control unit 113 includes a heating film and a thermostat, enclosing the pipes for precise temperature control. The temperature and humidity control module 11 operates in two modes: a first mode and a second mode. Based on data from the temperature and humidity sensors 123, it obtains humidity and temperature values. The first mode is activated when the humidity value exceeds a set threshold, and the second mode is activated when the temperature value exceeds the set threshold. In the first mode, the first solenoid valve 115 and the third solenoid valve 117 are closed, the second solenoid valve 116 is open, the temperature control unit 113 stops operating, and the suction fan 111 draws air from below the head into the pipes. Drawn by the supply fan unit 114, the air passes through the dehumidification unit 112 and reaches above the head. The air above the head then flows back below to compensate for the lost air below, thus reducing humidity through air circulation. In the second mode, the first solenoid valve 115 and the third solenoid valve 117 are opened, the second solenoid valve 116 is closed, the temperature control unit 113 starts working, the suction fan 111 draws air from below the head into the duct and discharges it through the air outlet. Under the traction of the supply fan unit 114, outside air enters the temperature and humidity control module through the air inlet. Since the temperature in the operating room is low, the temperature control unit 113 heats the incoming air to the set suitable temperature and outputs it to above the head. The air above the head will flow to below the head to make up for the air lost below the head and maintain a suitable temperature and humidity below the head.
[0030] The working process of the neurointerventional head fixation device is as follows: Based on the patient's head size, the heights of the first fixation support module 4, the second fixation support module 5, the infrared detection module 6, the first adjustable support module 7, and the second adjustable support module 8 are adjusted using cylinders. This ensures that the magnetic field strength in the first fixation support module 4, the second fixation support module 5, the first adjustable support module 7, the second adjustable support module 8, and the occipital support module 12 is zero, and the magnetorheological elastomer exhibits good flexibility. The patient's head is placed on the occipital support module 12, so that the patient's head contacts the first fixation support module 4 and the second fixation support module 5. When the surface pressure of the left support unit 121 and the right support unit 122 in the occipital support module 12... If the average force is greater than the pressure threshold, it indicates that the head is in close and natural contact with the left support unit 121 and the right support unit 122. The magnetic field strength in the left and right support units 121 and 122 is set to 0.5T. The position of the ear is determined based on the infrared image captured by the infrared detection module 6. The first fixed support module 4 and the second fixed support module 5 are moved to avoid the ear and be positioned on either side of it. Based on symmetry, the positions of the first adjustable support module 7 and the second adjustable support module 8 are adjusted. The first adjustable support module 7 and the second adjustable support module 8 are moved towards the patient's head via a cylinder. When the average surface pressure of the first fixed support module 4 and the second fixed support module 5 is greater than the pressure threshold... The threshold indicates that the head is in close and natural contact with the first fixed support module 4 and the second fixed support module 5. The magnetic field strength in the first fixed support module 4 and the second fixed support module 5 is set to 0.6T. When the average surface pressure of the first adjustable support module 7 and the second adjustable support module 8 is greater than the pressure threshold, it indicates that the head is in close and natural contact with the first adjustable support module 7 and the second adjustable support module 8, causing the first adjustable support module 7 and the second adjustable support module 8 to stop moving forward. The magnetic field strength in the first adjustable support module 7 and the second adjustable support module 8 is set to 0.6T. The detection units of the first detection module 9 and the second detection module 10 are then driven by a cylinder to move towards the patient's head. When the average surface pressure of the detection unit exceeds the pressure threshold, it indicates that the patient's head is in close contact with the detection unit, causing the detection units of the first detection module 9 and the second detection module 10 to stop moving. During the operation, the temperature and humidity control module 11 continuously controls the temperature and humidity. The detection units of the first detection module 9 and the second detection module 10 detect the micro-movement of the head through an accelerometer. When a micro-movement occurs, the magnetic field strength in the fixed support module or adjustable support module corresponding to the direction of the micro-movement is increased by 0.05T (the magnetic field strength can be increased up to 1.8T) to increase its rigidity and block the micro-movement. For example, when the head moves slightly to the left, the magnetic field strength in the first fixed support module 4 and the second fixed support module 5 is increased by 0.05T.When the head moves slightly to the right, the magnetic field strength in the first adjustable support module 7 and the second adjustable support module 8 is increased by 0.05T.
[0031] The embodiments described above are merely illustrative of specific implementations of the present invention, and while the descriptions are detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.
Claims
1. A neurointerventional head fixation device, characterized in that: The neurointerventional head fixation device includes a base plate, a temperature and humidity control module disposed above the base plate, a first detection module and a second detection module symmetrically disposed below the temperature and humidity control module, a first sliding track disposed below the first detection module, a second sliding track symmetrical to the first sliding track disposed below the second detection module, an occipital bone support module disposed between the first sliding track and the second sliding track, a first fixing support module, an infrared detection module and a second fixing support module disposed sequentially from top to bottom in the first sliding track, and a first adjustable support module and a second adjustable support module disposed sequentially from top to bottom in the second sliding track.
2. The neurointerventional head fixation device according to claim 1, characterized in that: The first detection module includes a first support unit, a fourth cylinder, and a first detection unit. The bottom of the first support unit is connected to a substrate, the top side of the first support unit is connected to the fourth cylinder, and the end face of the fourth cylinder is connected to the first detection unit. A thin-film pressure sensor is disposed on the surface of the first detection unit, and an acceleration sensor is disposed inside the first detection unit. The second detection module includes a second support unit, a ninth cylinder, and a second detection unit. The bottom of the second support unit is connected to a substrate, the top side of the second support unit is connected to the ninth cylinder, and the end face of the ninth cylinder is connected to the second detection unit. A thin-film pressure sensor is disposed on the surface of the second detection unit, and an acceleration sensor is disposed inside the second detection unit.
3. The neurointerventional head fixation device according to claim 1, characterized in that: The infrared detection module includes a third movable base plate, which is movably disposed on a first sliding track. A third cylinder is disposed on the third movable base plate, and a third fixed base is disposed on the end face of the third cylinder. The third fixed base is connected to an infrared camera.
4. The neurointerventional head fixation device according to claim 1, characterized in that: The first fixed support module includes a first movable base plate, which is movably disposed on a first sliding rail. A first cylinder is disposed on the first movable base plate, and a first fixed base is disposed on the end face of the first cylinder. The first fixed base is connected to the side support unit. The second fixed support module includes a second movable base plate, which is movably disposed on the first sliding rail. A second cylinder is disposed on the second movable base plate, and a second fixed base is disposed on the end face of the second cylinder. The second fixed base is connected to the side support unit.
5. The neurointerventional head fixation device according to claim 4, characterized in that: The first adjustable support module includes a fourth movable base plate, which is movably disposed on a second sliding rail. A fifth cylinder is disposed on the fourth movable base plate, and a fourth fixed base is disposed on the end face of the fifth cylinder. The fourth fixed base 73 is connected to a sixth cylinder, and a side support unit is connected to the end face of the sixth cylinder. The second adjustable support module includes a fifth movable base plate, which is movably disposed on a second sliding rail. A seventh cylinder is disposed on the fifth movable base plate, and a fifth fixed base is disposed on the end face of the seventh cylinder. The fifth fixed base is connected to an eighth cylinder, and a side support unit is connected to the end face of the eighth cylinder.
6. The neurointerventional head fixation device according to claim 5, characterized in that: The side support unit includes a base, a first magnetorheological elastomer is disposed on the surface of the base, the first magnetorheological elastomer is sealed by a first flexible silicone, a magnetic field control circuit and an electromagnetic coil array are disposed inside the base, and a miniature pressure sensor array is embedded in the first flexible silicone.
7. The neurointerventional head fixation device according to claim 1, characterized in that: The occipital bone support module includes a left support unit and a right support unit, and a temperature and humidity sensor is installed between the left support unit and the right support unit.
8. The neurointerventional head fixation device according to claim 7, characterized in that: The left support unit includes a first support base, a first support plate is disposed on the left side of the first support base, a second magnetorheological elastomer is disposed between the first support base and the first support plate, and the second magnetorheological elastomer is sealed with a second flexible silicone sealant. The right support unit includes a second support base, a second support plate is disposed on the right side of the second support base, a third magnetorheological elastomer is disposed between the second support base and the second support plate, and the third magnetorheological elastomer is sealed with a third flexible silicone sealant.
9. The neurointerventional head fixation device according to claim 7, characterized in that: The temperature and humidity control module has an air supply fan unit at its inner top and an air intake fan unit at its inner bottom. The air intake fan is connected to the air outlet on the outside of the temperature and humidity control module via a pipe. A first solenoid valve is installed at the air outlet. A dehumidification unit is connected between the air intake fan and the air supply fan unit via a pipe. A temperature control unit is installed outside the pipe between the dehumidification unit and the air supply fan unit. A second solenoid valve is installed between the air intake fan and the dehumidification unit. An air inlet on the outside of the temperature and humidity control module is connected between the dehumidification unit and the temperature control unit via a pipe. A third solenoid valve is installed at the air inlet.
10. The neurointerventional head fixation device according to claim 9, characterized in that: The temperature and humidity control module has two operating modes: a first mode and a second mode. It obtains humidity and temperature values based on data from the temperature and humidity sensor. When only the humidity value is greater than a set threshold, it enters the first mode; when the temperature value is greater than the set threshold, it enters the second mode.