Head supporting device for nuclear magnetic resonance brain examination

Abstract

The invention provides a head supporting device for nuclear magnetic resonance brain examination, and relates to the field of medical instruments, the head supporting device comprises a position fixing bottom plate, a limiting mounting plate, a rolling positioning screw, a head fixing net bag, a head fixing rope and a sliding limiting plate; the number of the limiting mounting plates is two, and the two limiting mounting plates are fixedly connected to the left side and the right side of the position fixing bottom plate correspondingly. The number of the winding positioning screws is two, and the two winding positioning screws are in threaded connection to the upper portions of the two limiting mounting plates correspondingly. The head fixing net bag is arranged above the position fixing bottom plate; the number of the head fixing ropes is two, and the two head fixing ropes are both located on the front side of the head fixing net bag. The two sliding limiting plates are connected to the left side and the right side of the position fixing bottom plate in a left-right sliding mode correspondingly. According to the method, the operation process is greatly simplified, a large amount of time is saved, the overall examination efficiency is improved, and the problems that the wound position needs to be determined for a long time, and the examination efficiency is affected are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a head support device for magnetic resonance imaging (MRI) brain examination. Background Art

[0002] In MRI brain examinations, accurate imaging of deep structures such as the amygdala and hippocampus is crucial for the diagnosis of diseases such as epilepsy and Alzheimer's disease. The head support device can reduce the patient's unconscious movement during the examination through physical restraint. Most existing support devices use an adjustable screw and a slider covered with a soft cushion to press the patient's head. The clamping force can be changed by rotating the screw to ensure the stability of the patient's head during the examination. This design can effectively reduce motion artifacts and ensure imaging quality in routine examinations.

[0003] For example, CN118476801B discloses an MRI examination bed, comprising an MRI scanner and a base, wherein a sliding placement bed is provided on the base, and the placement bed comprises a lying side adjustment mechanism, a trunk limiting device and an automatic head limiting device, wherein the lying side adjustment mechanism is movably connected to the upper wall of the base, the trunk limiting device is engaged with the lying side adjustment mechanism, and the automatic head limiting device is fixedly arranged in the lying side adjustment mechanism; the present invention belongs to the technical field of examination beds for MRI medical treatment; the present invention achieves a design effect of automatically fixing the patient's head, and at the same time has a structural feature of preventing the fixing device from falling off due to the patient's struggle, and can also synchronously support the chest and back of the side-lying patient to ensure a stable body position.

[0004] However, when the patient has a wound on the back of the head, it is necessary to first determine the location of the wound and place a hollow silicone ring under the wound to avoid pressure on the wound before examination. However, determining the location of the wound requires relying on the doctor's palpation, medical record review or previous imaging data. When the patient is unconscious, the medical record is brief, or the wound is obscured by hair, the positioning process often needs to be confirmed repeatedly, resulting in the position and angle of the silicone ring needing to be adjusted multiple times to achieve the ideal decompression effect. This cumbersome operation not only prolongs the preparation time before the examination, but also easily causes the wound to be pulled due to repeated adjustment of the hollow silicone ring, causing pain in the patient's wound, affecting the patient's cooperation, and greatly affecting the efficiency of the examination. Summary of the Invention

[0005] In view of this, the present invention provides a head support device for MRI brain examination, which effectively reduces the contact area between the patient's head and the support device. When the patient uses the support device, the back of the head can be just suspended in the air, and there is no need to accurately locate the wound position, which avoids the situation where the wound on the patient's head is compressed. The silicone cushioning pad can cushion the clamping force exerted on the patient, reducing the patient's pain and discomfort, and improving the patient's comfort during the examination. At the same time, it greatly simplifies the operation process, and the tedious steps of repeatedly adjusting the position and angle of the hollow silicone ring to achieve the ideal decompression effect reduce the difficulty of operating when supporting the patient's head, save a lot of time, make the preparation work before the examination more efficient, avoid the situation where the wound is pulled by repeated adjustment of the hollow silicone ring, avoid causing pain to the patient's wound, improve the patient's cooperation, and greatly improve the overall examination. Efficiency: after the net bag closing strip is tightened, it can stably fix the patient's head, reduce the unconscious movement of the patient's head during the examination, avoid image blur or artifacts caused by movement, and ensure the quality of the MRI examination image. Rotating the position adjustment screw can make the guide sliding block slide along the guide mounting plate, drive the positioning connecting rod and the net cover closing ring to move, thereby retracting the excess part of the head fixing net bag. By controlling the reeling amount of the head fixing rope and the position of the net cover closing ring, the head fixing net bag can be flexibly adjusted according to the different sizes of the patient's head, thereby improving the versatility of the device and being suitable for patients of different body sizes. By rotating the position fixing screw, the limit plug rod is moved out of or inserted into the limit socket on the position fixing block, and the disassembly and installation of the head fixing net bag can be easily completed, which facilitates the maintenance and updating of the device, extends the service life of the device, and reduces the cost of use.

[0006] The present invention provides a head support device for magnetic resonance imaging (MRI) brain examination, which specifically includes: a position-fixing base plate, a limiting mounting plate, a winding and positioning screw, a head-fixing net bag, a positioning structure, a fixing structure, a head-fixing rope and a sliding limiting plate; two limiting mounting plates are provided, and the two limiting mounting plates are respectively fixedly connected to the left and right sides of the position-fixing base plate; two winding and positioning screws are provided, and the two winding and positioning screws are respectively threadedly connected to the upper parts of the two limiting mounting plates; the head-fixing net bag is provided above the position-fixing base plate; the positioning structure is provided on the upper part of the position-fixing base plate; two head-fixing ropes are provided, and both of the head-fixing ropes are located at the front side of the head-fixing net bag; two sliding limiting plates are provided, and the two sliding limiting plates are respectively slidably connected to the left and right sides of the position-fixing base plate; the fixing structure is provided above the position-fixing base plate.

[0007] Furthermore, the positioning structure includes a guide mounting plate and a guide sliding block; there are two guide mounting plates, and the two guide mounting plates are respectively fixedly connected to the left and right sides of the position fixed base plate; there are two guide sliding blocks, and the two guide sliding blocks are respectively connected to the upper parts of the two guide mounting plates for forward and backward sliding.

[0008] Furthermore, the positioning structure also includes a position adjustment screw and a positioning connecting rod; there are two position adjustment screws, and the two position adjustment screws are respectively rotatably connected to the middle part of the two guide mounting plates, and the two position adjustment screws are respectively threadedly connected to the two guide sliding blocks through thread pairs; there are two positioning connecting rods, and the two positioning connecting rods are respectively fixedly connected to the inner side of the two guide sliding blocks.

[0009] Furthermore, the positioning structure also includes a mesh cover closing ring and a limiting double-ended screw; the mesh cover closing ring is fixedly connected to the inner side of the two positioning connecting rods; the limiting double-ended screw is rotatably connected to the front side of the position fixing base plate, and the limiting double-ended screw is threadedly connected to the two sliding limiting plates through a threaded pair.

[0010] Furthermore, the positioning structure also includes a limiting winding sleeve and a sub-Velcro; two limiting winding sleeves are provided, and the two limiting winding sleeves are spline-connected to the outside of the two winding positioning screws respectively; two sub-Velcro are provided, and the two sub-Velcro are adhered to the outside of the two limiting winding sleeves.

[0011] Furthermore, the positioning structure also includes a net bag closing strip and a silicone cushioning pad; the net bag closing strip is sewn on the front side of the head fixing net bag, and the two head fixing ropes are both passed through the inner side of the net bag closing strip; a plurality of silicone cushioning pads are provided, and the plurality of silicone cushioning pads are evenly distributed and bonded to the inner side of the net bag closing strip.

[0012] Furthermore, the positioning structure also includes a mother Velcro and a fixed U-shaped rod; four mother Velcro are provided, and the four mother Velcro are respectively fixedly connected to the ends of the two head fixing ropes, and the four mother Velcro are respectively adhered to the outside of the two child Velcro; multiple fixed U-shaped rods are provided, and multiple fixed U-shaped rods are evenly distributed and fixedly connected to the upper part of the two sliding limit plates.

[0013] Furthermore, the positioning structure also includes a position fixing hook and an elastic supporting cloth; there are multiple position fixing hooks, and the multiple position fixing hooks are respectively hooked on the inner notches of the multiple fixed U-shaped rods, and the elastic supporting cloth is fixedly connected to the inner side of the multiple position fixing hooks.

[0014] Furthermore, the fixing structure includes a position fixing screw, a position fixing pressure plate and a limiting rod; the position fixing screw is threadedly connected to the upper part of the position fixing base plate through a threaded pair; the position fixing pressure plate is rotatably connected to the lower part of the position fixing screw, and the position fixing pressure plate is slidably connected to the upper part of the position fixing base plate; a plurality of limiting rods are provided, and the plurality of limiting rods are evenly distributed and fixedly connected to the lower end surface of the position fixing pressure plate.

[0015] Furthermore, the fixing structure also includes a position fixing block and a limiting socket; the position fixing block is fixedly connected to the rear part of the head fixing net bag; there are multiple limiting sockets, and the multiple limiting sockets are evenly distributed and opened on the upper part of the position fixing block.

[0016] Beneficial effects The present invention supports the patient's head by tightening the patient's head through the cooperation of the head fixing net bag and the head fixing rope, effectively reducing the contact area between the patient's head and the support device. When the patient uses the support device, the back of the head can be just suspended in the air, and there is no need to accurately locate the wound position, which avoids the situation where the wound on the patient's head is compressed. The silicone cushioning pad can cushion the clamping force on the patient, reducing the patient's pain and discomfort, and improving the patient's comfort during the examination. At the same time, it greatly simplifies the operation process, and the tedious steps of repeatedly adjusting the position and angle of the hollow silicone ring to achieve the ideal decompression effect reduce the difficulty of operation when supporting the patient's head, save a lot of time, make the preparation work before the examination more efficient, avoid the situation where the wound is pulled by repeated adjustment of the hollow silicone ring, avoid causing pain to the patient's wound, improve the patient's cooperation, and greatly improve the overall The head-fixing net bag is convenient to use and can be installed and disassembled easily, so that the head can be easily fixed and disassembled, and the maintenance and updating of the device are convenient and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0018] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0019] In the attached figure: Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the positional relationship between the winding positioning screw and the head fixing rope of the present invention.

[0021] Figure 3 It is a schematic diagram of the positional relationship among the sliding limiting plate, the position fixing hook and the elastic supporting cloth of the present invention.

[0022] Figure 4 It is a schematic diagram of the disassembled structure of the guide mounting plate, the guide sliding block and the position adjustment screw of the present invention.

[0023] Figure 5 It is a schematic diagram of the disassembled structure of the winding and positioning screw, the limiting winding sleeve and the head fixing rope of the present invention.

[0024] Figure 6 It is a schematic diagram of the positions of the position fixing pressure plate and the position fixing block of the present invention.

[0025] Figure 7 It is a schematic diagram of the disassembled structure of the limiting plug rod and the position fixing block of the present invention.

[0026] Figure 8 It is a schematic diagram of the position of the limiting rod of the present invention.

[0027] Reference Signs List 1. Position-fixing base plate; 101. Guide mounting plate; 102. Guide sliding block; 103. Position-adjusting screw; 104. Positioning connecting rod; 105. Net cover closing ring; 106. Position-limiting double-headed screw; 107. Position-fixing screw; 108. Position-fixing pressure plate; 109. Position-limiting plug rod; 2. Position-limiting mounting plate; 3. Winding and positioning screw; 301. Position-limiting winding sleeve; 302. Sub-Velcro; 4. Head-fixing net bag; 401. Net bag closing strip; 402. Silicone cushion; 403. Position-fixing block; 404. Position-limiting jack; 5. Head-fixing rope; 501. Female Velcro; 6. Sliding limit plate; 601. Fixed U-shaped rod; 602. Position-fixing hook; 603. Elastic support cloth. DETAILED DESCRIPTION

[0028] Example 1: Please refer to Figures 1 to 5 As shown: The present invention provides a head support device for magnetic resonance imaging (MRI) brain examination, comprising a position-fixing base plate 1, a limiting mounting plate 2, a winding and positioning screw 3, a head-fixing net bag 4, a positioning structure, a head-fixing rope 5 and a sliding limit plate 6; two limit mounting plates 2 are provided, and the two limit mounting plates 2 are respectively fixedly connected to the left and right sides of the position-fixing base plate 1; two winding and positioning screws 3 are provided, and the two winding and positioning screws 3 are respectively threadedly connected to the upper parts of the two limiting mounting plates 2; the head-fixing net bag 4 is arranged above the position-fixing base plate 1; the positioning structure is provided on the upper part of the position-fixing base plate 1; two head-fixing ropes 5 are provided, and the two head-fixing ropes 5 are both located on the front side of the head-fixing net bag 4; two sliding limit plates 6 are provided, and the two sliding limit plates 6 are respectively slidably connected to the left and right sides of the position-fixing base plate 1.

[0029] Among them, the positioning structure includes a guide mounting plate 101 and a guide sliding block 102; there are two guide mounting plates 101, and the two guide mounting plates 101 are respectively fixedly connected to the left and right sides of the position-fixed base plate 1; there are two guide sliding blocks 102, and the two guide sliding blocks 102 are respectively connected to the upper parts of the two guide mounting plates 101 for sliding forward and backward.

[0030] Among them, the positioning structure also includes a position adjustment screw 103 and a positioning connecting rod 104; there are two position adjustment screws 103, and the two position adjustment screws 103 are respectively rotatably connected to the middle part of the two guide mounting plates 101, and the two position adjustment screws 103 are respectively threadedly connected to the two guide sliding blocks 102 through thread pairs; there are two positioning connecting rods 104, and the two positioning connecting rods 104 are respectively fixedly connected to the inner sides of the two guide sliding blocks 102.

[0031] Among them, the positioning structure also includes a mesh cover closing ring 105 and a limiting double-ended screw rod 106; the mesh cover closing ring 105 is fixedly connected to the inner side of the two positioning connecting rods 104; the limiting double-ended screw rod 106 is rotatably connected to the front side of the position-fixed base plate 1, and the limiting double-ended screw rod 106 is threadedly connected to the two sliding limiting plates 6 through a threaded pair.

[0032] Among them, the positioning structure also includes a limiting winding sleeve 301 and a sub-Velcro 302; there are two limiting winding sleeves 301, and the two limiting winding sleeves 301 are spline-connected to the outside of the two winding positioning screws 3 respectively; there are two sub-Velcro 302, and the two sub-Velcro 302 are bonded to the outside of the two limiting winding sleeves 301.

[0033] Among them, the positioning structure also includes a net bag closing strip 401 and a silicone cushioning pad 402; the net bag closing strip 401 is sewn on the front side of the head fixing net bag 4, and the two head fixing ropes 5 are both passed through the inner side of the net bag closing strip 401; there are multiple silicone cushioning pads 402, and multiple silicone cushioning pads 402 are evenly distributed and bonded to the inner side of the net bag closing strip 401.

[0034] Among them, the positioning structure also includes a mother Velcro 501 and a fixed U-shaped rod 601; there are four mother Velcro 501, and the four mother Velcro 501 are respectively fixedly connected to the ends of the two head fixing ropes 5, and the four mother Velcro 501 are respectively adhered to the outside of the two child Velcro 302; there are multiple fixed U-shaped rods 601, and the multiple fixed U-shaped rods 601 are evenly distributed and fixedly connected to the upper part of the two sliding limit plates 6.

[0035] Among them, the positioning structure also includes a position fixing hook 602 and an elastic support cloth 603; there are multiple position fixing hooks 602, and the multiple position fixing hooks 602 are respectively hooked on the inner notches of the multiple fixed U-shaped rods 601, and the elastic support cloth 603 is fixedly connected to the inner side of the multiple position fixing hooks 602.

[0036] The specific usage and function of this embodiment are as follows: the position fixing base plate 1 is fixed to the inner side of the skull coil by means of bolts, the patient places the neck on the elastic support cloth 603, the medical staff puts the head fixing net bag 4 on the patient's head, and rotates the winding positioning screw 3 on the upper part of the limiting mounting plate 2, so that the winding positioning screw 3 drives the limiting winding sleeve 301 to rotate, and the limiting winding sleeve 301 will reel the head fixing rope 5 when rotating, so that the net bag closing strip 401 is tightened, and the silicone cushion pad 402 will fit tightly with the patient's head, and the back of the patient's head is just suspended in the air, and will not touch the back of the head injury. When the size of the head fixing net bag 4 is adjusted according to the size of the patient's head, the position adjusting screw 103 is rotated to make the guide sliding block 102 slide along the guide mounting plate 101. When the guide sliding block 102 slides, it will drive the positioning connecting rod 104 and the mesh cover closing ring 105 to move, so that the mesh cover closing ring 105 can close the excess part of the head fixing net bag 4. The rotating limiting double-headed screw rod 106 can move the sliding limiting plate 6, change the distance between the two sliding limiting plates 6, so that the elastic supporting cloth 603 is no longer tight, which is convenient for removing the position fixing hook 602 from the fixed U-shaped rod 601.

[0037] Example 2: like Figures 5 to 8 As shown: On the basis of the first embodiment, a fixing structure is further included; the fixing structure is arranged above the position-fixing base plate 1 .

[0038] Among them, the fixing structure includes a position fixing screw 107, a position fixing pressure plate 108 and a limiting rod 109; the position fixing screw 107 is threadedly connected to the upper part of the position fixing base plate 1 through a threaded pair; the position fixing pressure plate 108 is rotatably connected to the lower part of the position fixing screw 107, and the position fixing pressure plate 108 is slidably connected to the upper part of the position fixing base plate 1; there are multiple limiting rods 109, and the multiple limiting rods 109 are evenly distributed and fixedly connected to the lower end surface of the position fixing pressure plate 108.

[0039] Among them, the fixing structure also includes a position fixing block 403 and a limiting socket 404; the position fixing block 403 is fixedly connected to the rear part of the head fixing net bag 4; there are multiple limiting sockets 404, and multiple limiting sockets 404 are evenly distributed on the upper part of the position fixing block 403.

[0040] The specific usage and function of this embodiment: when replacing the head fixing net bag 4, the mother Velcro 501 can be torn off from the outside of the child Velcro 302 to pull out the head fixing rope 5, and the position fixing screw 107 is rotated to make the position fixing screw 107 drive the position fixing pressure plate 108 to move upward. When the position fixing pressure plate 108 moves upward, it will drive the limiting rod 109 to move upward, so that the limiting rod 109 moves out of the limiting socket 404 on the upper part of the position fixing block 403. At this time, the head fixing net bag can be 4. When installing a new head-fixing net bag 4, place the position fixing block 403 under the position fixing pressure plate 108. At this time, the limiting socket 404 will be aligned with the limiting rod 109. Reversely rotate the position fixing screw 107 to insert the limiting rod 109 into the limiting socket 404 to fix the new head-fixing net bag 4. At this time, re-insert the head fixing rope 5 into the net bag closing strip 401, and stick the female Velcro 501 to the outside of the female Velcro 302 to complete the installation of the head-fixing net bag 4.

[0041] In this article, there are several points to note: 1. The drawings of this embodiment only involve the structures related to this embodiment. Other structures can refer to the general design.

[0042] 2. In the absence of conflict, the features of this embodiment and the embodiments can be combined with each other to obtain new embodiments.

[0043] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A head support device for magnetic resonance imaging (MRI) brain examination, comprising a position fixing base plate (1), a position limiting mounting plate (2), a winding and positioning screw (3), a head fixing net bag (4), a positioning structure, a fixing structure, a head fixing rope (5) and a sliding position limiting plate (6); two position limiting mounting plates (2) are provided, and the two position limiting mounting plates (2) are fixedly connected to the left and right sides of the position fixing base plate (1) respectively; and characterized in that: There are two winding positioning screws (3), and the two winding positioning screws (3) are respectively threadedly connected to the upper parts of the two limit mounting plates (2); the head fixing net bag (4) is arranged above the position fixing base plate (1); the positioning structure is arranged on the upper part of the position fixing base plate (1); there are two head fixing ropes (5), and the two head fixing ropes (5) are both located on the front side of the head fixing net bag (4); there are two sliding limit plates (6), and the two sliding limit plates (6) are respectively connected to the left and right sides of the position fixing base plate (1) by sliding left and right; the fixing structure is arranged above the position fixing base plate (1).

2. The head support device for MRI brain examination according to claim 1, characterized in that: The positioning structure comprises a guide mounting plate (101) and a guide sliding block (102); two guide mounting plates (101) are provided, and the two guide mounting plates (101) are respectively fixedly connected to the left and right sides of the position fixed base plate (1); two guide sliding blocks (102) are provided, and the two guide sliding blocks (102) are respectively connected to the upper parts of the two guide mounting plates (101) in a forward and backward sliding manner.

3. The head support device for MRI brain examination according to claim 2, characterized in that: The positioning structure further includes a position adjustment screw (103) and a positioning connecting rod (104); two position adjustment screws (103) are provided, and the two position adjustment screws (103) are respectively rotatably connected to the middle parts of the two guide mounting plates (101), and the two position adjustment screws (103) are respectively threadedly connected to the two guide sliding blocks (102) through thread pairs; two positioning connecting rods (104) are provided, and the two positioning connecting rods (104) are respectively fixedly connected to the inner sides of the two guide sliding blocks (102).

4. The head support device for MRI brain examination according to claim 3, characterized in that: The positioning structure further comprises a mesh cover closing ring (105) and a limiting double-headed screw rod (106); the mesh cover closing ring (105) is fixedly connected to the inner side of the two positioning connecting rods (104); the limiting double-headed screw rod (106) is rotatably connected to the front side of the position fixing base plate (1), and the limiting double-headed screw rod (106) is threadedly connected to the two sliding limiting plates (6) through a threaded pair.

5. The head support device for MRI brain examination according to claim 4, characterized in that: The positioning structure further comprises a position-limiting winding sleeve (301) and a sub-velcro (302); two position-limiting winding sleeves (301) are provided, and the two position-limiting winding sleeves (301) are respectively spline-connected to the outsides of the two winding positioning screws (3); two sub-velcro (302) are provided, and the two sub-velcro (302) are bonded to the outsides of the two position-limiting winding sleeves (301).

6. The head support device for MRI brain examination according to claim 5, characterized in that: The positioning structure further comprises a net bag closing strip (401) and a silicone cushioning pad (402); the net bag closing strip (401) is sewn on the front side of the head fixing net bag (4), and the two head fixing ropes (5) are both passed through the inner side of the net bag closing strip (401); a plurality of silicone cushioning pads (402) are provided, and the plurality of silicone cushioning pads (402) are evenly distributed and bonded to the inner side of the net bag closing strip (401).

7. The head support device for MRI brain examination according to claim 6, characterized in that: The positioning structure further comprises a mother Velcro (501) and a fixed U-shaped rod (601); four mother Velcros (501) are provided, and the four mother Velcros (501) are respectively fixedly connected to the ends of the two head fixing ropes (5), and the four mother Velcros (501) are respectively adhered to the outsides of the two child Velcros (302); a plurality of fixed U-shaped rods (601) are provided, and the plurality of fixed U-shaped rods (601) are evenly distributed and fixedly connected to the upper parts of the two sliding limit plates (6).

8. The head support device for MRI brain examination according to claim 7, characterized in that: The positioning structure further comprises a position fixing hook (602) and an elastic supporting cloth (603); a plurality of the position fixing hooks (602) are provided, and the plurality of the position fixing hooks (602) are respectively hooked on the inner notches of the plurality of fixed U-shaped rods (601), and the elastic supporting cloth (603) is fixedly connected to the inner sides of the plurality of the position fixing hooks (602).

9. The head support device for MRI brain examination according to claim 1, characterized in that: The fixing structure comprises a position fixing screw (107), a position fixing pressure plate (108) and a limiting plug rod (109); the position fixing screw (107) is threadedly connected to the upper part of the position fixing base plate (1) through a thread pair; the position fixing pressure plate (108) is rotatably connected to the lower part of the position fixing screw (107), and the position fixing pressure plate (108) is slidably connected to the upper part of the position fixing base plate (1); a plurality of limiting plug rods (109) are provided, and the plurality of limiting plug rods (109) are evenly distributed and fixedly connected to the lower end surface of the position fixing pressure plate (108).

10. The head support device for MRI brain examination according to claim 9, characterized in that: The fixing structure further comprises a position fixing block (403) and a position limiting socket (404); the position fixing block (403) is fixedly connected to the rear portion of the head fixing net bag (4); a plurality of the position limiting sockets (404) are provided, and the plurality of the position limiting sockets (404) are evenly distributed and opened on the upper portion of the position fixing block (403).

Images