Auxiliary device for nuclear magnetic resonance examination

Abstract

The invention relates to a medical auxiliary device. The invention aims to provide an auxiliary device for nuclear magnetic resonance examination. The auxiliary device comprises a wheel type lifting base and a telescopic transfer bed detachably arranged on the wheel type lifting base, the wheel type lifting base can lift or lower the telescopic transfer bed through lifting; the telescopic transfer bed comprises a cushion section, a leg supporting section and a backrest section, wherein the leg supporting section and the backrest section are hinged to the two ends of the cushion section, and supporting wheel sets are arranged on the two sides of bottom plates of the cushion section, the leg supporting section and the backrest section. A telescopic control mechanism is arranged at the bottom of the cushion section, and switching between a tiled unfolding state and a chair type contraction state of the cushion section, the leg support section and the backrest section is formed through the telescopic control mechanism. The device can effectively assist a patient with mobility difficulty in getting on and off the examination bed of the nuclear magnetic resonance machine, so that the burden of auxiliary personnel is greatly reduced, and the transfer risk of the patient is reduced.

Description

Technical Field

[0001] The invention relates to a medical auxiliary device, in particular to a nuclear magnetic resonance examination auxiliary device. Background Art

[0002] Magnetic resonance imaging uses the principle of nuclear magnetic resonance. Based on the different attenuation of the released energy in different structural environments inside the material, the electromagnetic waves emitted are detected by applying an external gradient magnetic field to know the position and type of the atomic nuclei that make up the object, and thus a structural image of the object's interior can be drawn. As a modern inspection equipment commonly used in modern medicine, nuclear magnetic resonance machines have been widely used in modern hospitals as necessary equipment to assist medical care in diagnosis and treatment. During the use of the nuclear magnetic resonance machine, the patient lies on the sliding examination bed that comes with the machine, and then is automatically sent into the examination body for examination.

[0003] However, in practice, we found that for some patients with limited movement or elderly patients, although the height of the examination bed is usually not high, due to their limited mobility, they still cannot transfer to the examination bed by themselves, and often need the assistance of multiple people. This not only increases the workload of other personnel such as accompanying and medical staff, resulting in inefficiency and ultimately leading to congestion and queues, but also increases the risk of injury during the transfer process, causing unnecessary accidents. Summary of the invention

[0004] The object of the present invention is to provide a nuclear magnetic resonance examination auxiliary device which can assist patients with limited mobility to get on and off an examination bed and to transfer.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a nuclear magnetic resonance examination auxiliary device, comprising a wheeled lifting base and a telescopic transfer bed detachably arranged on the wheeled lifting base; the wheeled lifting base can raise or lower the height of the telescopic transfer bed by lifting;

[0006] The telescopic transfer bed comprises a cushion section, and a leg support section and a backrest section hingedly arranged at both ends of the cushion section, and both sides of the bottom plate of the cushion section, the leg support section and the backrest section are provided with supporting wheel groups; a telescopic control mechanism is provided at the bottom of the cushion section, and the seat cushion section, the leg support section and the backrest section are switched between a flat unfolded state and a chair-like retracted state through the telescopic control mechanism;

[0007] The telescopic control mechanism includes a backrest drive assembly, a leg support drive assembly, a linkage assembly and a mounting frame arranged on the bottom plate of the seat cushion section;

[0008] The backrest drive assembly includes a U-shaped sliding frame, two legs of the sliding frame extend from one end of the mounting frame close to the backrest section, and form a sliding fit with the mounting frame along the length direction of the telescopic transfer bed; the end of the leg of the sliding frame is provided with a first hinge joint, and the first hinge joint is hinged with a second hinge joint provided on the bottom plate of the backrest section through a short-circuit rod;

[0009] The leg support driving assembly includes two driving rods arranged in the mounting frames on both sides of the sliding frame, and the mounting frames are provided with guide sleeves on both sides of one end of the leg support section, and the driving rods pass through the guide sleeves and also form a sliding fit with the mounting frames along the length direction of the telescopic transfer bed; the driving rods are provided with a top wheel for pushing the leg support section to lift at one end outside the mounting frame;

[0010] The linkage assembly includes a fixed pulley arranged on the outer wall of one end of the installation frame close to the leg support section, guide holes are arranged on the installation frame on both sides of the fixed pulley, and also includes a linkage rope, one end of the linkage rope is connected to the side rod on the side wall of the driving rod, and the other end passes through a guide hole, bypasses the fixed pulley, passes through another guide hole, and is connected to the sliding frame.

[0011] Preferably, the telescopic control mechanism also includes a locking assembly for locking the position of the sliding frame; the locking assembly includes a locking pin and an elastic hook rod capable of hooking the locking pin, one end of the elastic hook rod is hinged to a third hinge joint arranged on the bottom plate of the cushion section, and a hook rod torsion spring is arranged at the hinge; the locking pin rod is transversely arranged on the side wall of the leg of the sliding frame and is perpendicular to the leg; two elastic hook rods are arranged, and the positions of the two elastic hook rods are respectively opposite to the position of the locking pin rod when the telescopic transfer bed is in a flat unfolded state and a chair-like retracted state.

[0012] Preferably, the bottom of the elastic hook rod is connected to the pull ring through a sling.

[0013] Preferably, guide rails extending along the length direction of the telescopic transfer bed are further provided on the inner walls on both sides of the installation frame, and sliders matching the guide rails are provided on the side walls of the driving rod, and the sliders are clamped in the guide rails to form a sliding fit with the guide rails.

[0014] Preferably, a guide block is fixedly provided on the bottom plate of the seat cushion section on one side close to the backrest section. The guide block is located opposite to the two legs of the sliding frame and is sleeved outside the legs to form a sliding fit with the legs.

[0015] Preferably, a head support is further provided at the end of the backrest section away from the cushion section, and the head support is plug-connected with the backrest section via an insertion rod and an insertion tube arranged in the bottom plate of the backrest section.

[0016] Preferably, the wheeled lifting base comprises a base frame and a wheel set with brakes arranged at the bottom of the base frame; further comprises a support rod arranged in the middle of the base frame, and a support plate is arranged on the top of the support rod; a lifting rod is arranged inside the support rod, and the lifting rod is drivingly connected to a lifting drive mechanism arranged on the base frame;

[0017] A connecting frame is also provided at the bottom of the cushion section. When the lifting rod is raised, the connecting frame can be lifted up, and when the lifting rod is lowered, the connecting frame can be pulled back and pressed against the supporting plate.

[0018] Preferably, the connecting frame is a trough frame with an opening facing downward, and the cross-section of the trough cavity of the trough frame is convex-shaped; the upper end of the lifting rod is provided with a top pressure head that cooperates with the inner cavity of the trough frame, and the top surface of the top pressure head is provided with a plurality of supporting rollers arranged side by side, and when the lifting rod rises, support for the trough frame is formed by the supporting rollers.

[0019] Preferably, the bottom of the pressing head and the bottom of the groove frame are provided with a positioning head and a positioning groove matched with the positioning head.

[0020] Preferably, a positioning head and a positioning groove are also provided between the top of the support plate and the bottom of the slot frame.

[0021] The beneficial effects of the present invention are mainly reflected in: it can effectively assist patients with limited mobility to get on and off the examination bed of the MRI machine, thereby greatly reducing the burden on auxiliary personnel and reducing the risk of patient transfer. Specifically, during the use of the present invention, when a patient with limited mobility wants to undergo a MRI examination, the telescopic transfer bed of the present invention is first adjusted to a chair-like contracted state, and then the patient is placed on the telescopic transfer bed, which can be directly used as a transitional wheelchair to facilitate patient transfer. When arriving at the MRI examination room, the telescopic transfer bed is first adjusted to a flat-laying state, and then the height of the telescopic transfer bed is adjusted through the wheeled lifting base until the telescopic transfer bed is at the same height as the MRI examination bed, and the fixation of the telescopic transfer bed and the wheeled lifting base is released, and the telescopic transfer bed can be directly pushed onto the examination bed for use. After the examination is completed, the telescopic transfer bed is pushed back onto the wheeled lifting base again to be locked, and the telescopic transfer bed is adjusted to a chair-like contracted state to transfer the patient again. The present invention extremely cleverly solves the problem of patients with limited mobility getting on and off the examination bed during MRI examinations. There is no need to set up climbing steps near the examination bed, and only one person needs to perform simple operations to assist in transferring the patient.

[0022] During the state adjustment of the telescopic transfer bed, the entire operation can be completed by pressing the backrest section. When the backrest section is in motion, it drives the short-circuit rod, which drives the legs of the sliding frame to move toward the backrest section. During the movement of the sliding frame, the driving rod is driven by the linkage rope to move, and the driving rod drives the top wheel to move toward the leg support section, thereby pushing the leg support section to lift. The present invention uses a clever drive and linkage design to enable the backrest section and the leg support section to switch their postures at the same time, which is extremely convenient and simple to use without complicated operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the connecting frame and the top of the lifting rod in one embodiment of the present invention;

[0025] Figure 3 for Figure 1 Enlarged view of part A in the middle;

[0026] Figure 4 It is a structural schematic diagram of the telescopic control mechanism;

[0027] Figure 5 It is a schematic diagram of the structure of the present invention in a use state. DETAILED DESCRIPTION

[0028] like Figure 1-5 As shown, a nuclear magnetic resonance examination auxiliary device is mainly used to assist patients with limited mobility or elderly patients to transfer from wards, consulting rooms, etc. to examination rooms before examination, and to facilitate the transfer of patients to the MRI examination bed. The efficiency of nuclear magnetic resonance examination is greatly improved, and the operating burden of personnel is reduced. Of course, since the present invention needs to enter the nuclear magnetic resonance examination room, the materials of each component should be non-ferromagnetic materials as a whole to avoid the risk of magnetic attraction.

[0029] Specifically, the present invention as a whole includes a wheeled lifting base and a telescopic transfer bed detachably arranged on the wheeled lifting base. The wheeled lifting base itself can be moved, and can raise or lower the height of the telescopic transfer bed by lifting. In other words, the present invention mainly includes two major parts: the wheeled lifting base and the telescopic transfer bed. The former serves as an installation base and a bracket part, and the latter serves as a part for supporting patients. The telescopic transfer bed can switch between a lying state or a seat state, which are the two major states described later.

[0030] 1. Regarding the wheeled lifting base, it can refer to some existing wheelchair and trolley structures, or Figure 1As shown in the figure, it includes a base frame 23 and a wheel set 24 with brakes arranged at the bottom of the base frame 23, and the pushing and positioning are achieved by unlocking and locking the brakes. It also includes a support rod 25 arranged in the middle of the base frame 23, and a support plate 26 is arranged on the top of the support rod 25. When the telescopic transfer bed is in the seat form, it is mainly supported by the support plate 26, which can reduce the pressure of the lifting component. In the flat lying form, since the time is relatively short and it can be transferred to the examination bed, it can be directly supported by the lifting component.

[0031] The support rod 25 described in the present invention is internally provided with a lifting component - a lifting rod 27, and the lifting rod 27 is transmission-connected with a lifting drive mechanism arranged on the base frame 23. The lifting drive mechanism can use a motor or a hand crank to drive the lifting rod 27 to lift and lower. Since the structure is relatively conventional and simple, it will not be described in detail in the present invention.

[0032] In addition to the lifting rod 27, the present invention also provides a connecting frame 28 at the bottom of the cushion section 1 (i.e., the middle section of the telescopic transfer bed). The connecting frame 28 is used to be detachably connected to the support plate and the lifting rod 27. When the lifting rod 27 rises, the connecting frame 28 can be lifted up. When the lifting rod 27 falls, the connecting frame 28 can be pulled back and pressed against the support plate 26. The specific sight line form can be as follows: Figure 2 As shown in the figure, the connecting frame 28 is a slot frame with its opening facing downward, and the cross section of the slot cavity of the slot frame is in a convex shape. The upper end of the lifting rod 27 is provided with a top pressure head 29 that matches the inner cavity of the slot frame, and the top surface of the top pressure head 29 is provided with a plurality of supporting rollers 30 arranged side by side. When the lifting rod 27 rises, the slot frame is supported by the supporting rollers 30.

[0033] When the lifting rod 27 is retracted, it can press down the slot frame through the top pressure head 29, and make it tightly pressed against the support plate 26 to form a stable fixation, and the lifting rod 27 does not need to bear gravity. When the lifting rod 27 rises, it can lift up the telescopic transfer bed, and because the support roller 30 is provided, it can reduce the friction of the telescopic transfer bed during horizontal dragging, ensuring the smoothness of dragging. In addition, in order to further improve the stability of the retracted state, a positioning head 31 and a positioning groove 32 matched with the positioning head 31 can be provided at the bottom of the top pressure head 29 and the bottom of the slot frame. A positioning head 31 and a positioning groove 32 are also provided between the top of the support plate 26 and the bottom of the slot frame. Through the cooperation of the positioning head 31 and the positioning groove 32, while forming a clamping lock, a secondary lock can also be achieved.

[0034] 2. About the telescopic transfer bed, such as Figure 1 and 5As shown in , the telescopic transfer bed includes a cushion section 1, and a leg support section 3 and a backrest section 2 hingedly arranged at both ends of the cushion section 1. Support wheel groups 0 are arranged on both sides of the bottom plate of the cushion section 1, the leg support section 3 and the backrest section 2 to facilitate sliding and dragging on the examination bed. A telescopic control mechanism is arranged at the bottom of the cushion section 1, and the telescopic control mechanism is used to switch the flat unfolded state and the chair-like retracted state of the cushion section 1, the leg support section 3 and the backrest section 2, that is, the aforementioned flat state and chair state.

[0035] The most ingenious part of the present invention is its telescopic control mechanism, which includes a backrest drive assembly, a leg support drive assembly, a linkage assembly and a mounting frame 4 arranged on the bottom plate of the seat cushion section 1.

[0036] like Figure 4 As shown in , the backrest drive assembly includes a U-shaped sliding frame 13, and the two legs of the sliding frame 13 extend from one end of the mounting frame 4 close to the backrest section 2, and form a sliding fit with the mounting frame 4 along the length direction of the telescopic transfer bed. The leg ends of the sliding frame 13 are provided with a first hinge joint 5, and the first hinge joint 5 is hinged with a second hinge joint 7 provided on the bottom plate of the backrest section 2 through a short-circuit rod 6. During the reciprocating motion of the sliding frame 13, the backrest section 3 can be driven to rotate around the hinge center through the short-circuit rod 6, thereby realizing state switching.

[0037] The leg support driving assembly includes two driving rods 8 arranged in the mounting frame 4 on both sides of the sliding frame 13. The mounting frame 4 is provided with guide sleeves 9 on both sides near one end of the leg support section 3. The driving rod 8 passes through the guide sleeves 9 and also forms a sliding fit with the mounting frame 4 along the length direction of the telescopic transfer bed. The end of the driving rod 8 located outside the mounting frame 4 is provided with a top wheel 10 for pushing the leg support section 3 to lift. When the driving rod 8 reciprocates, it can push the leg support section 3 through the top wheel 10, thereby realizing the lifting of the leg support section 3.

[0038] In order to synchronously lift the leg support section 3 while the backrest section 2 swings downward, the linkage assembly of the present invention includes a fixed pulley 11 arranged on the outer wall of the mounting frame 4 near one end of the leg support section 3, guide holes are arranged on the mounting frame 4 on both sides of the fixed pulley 11, and also includes a linkage rope 12, one end of the linkage rope 12 is connected to the side rod on the side wall of the driving rod 8, and the other end passes through a guide hole, bypasses the fixed pulley 11, passes through another guide hole, and is connected to the sliding frame 13.

[0039] During the state adjustment of the telescopic transfer bed, the entire operation can be completed by pressing the backrest section 2. When the backrest section 2 is in motion, it drives the short-circuit rod 6, and drives the legs of the sliding frame 13 to move in the direction of the backrest section 2. During the movement of the sliding frame 13, the driving rod 8 is driven by the linkage rope 12 to move, and the driving rod 8 drives the top wheel 10 to move in the direction of the leg support section 3, thereby pushing the leg support section 3 to lift. The present invention uses a clever drive and linkage design to enable the backrest section 2 and the leg support section 3 to switch their postures at the same time, which is extremely convenient and simple to use without complicated operations.

[0040] Of course, in order to ensure that the telescopic transfer bed can be locked in shape after switching to a specific shape, a better approach of the present invention may also be to combine Figure 1 and 3 As shown in , the telescopic control mechanism also includes a locking assembly for locking the position of the sliding frame 13. The locking assembly includes a locking pin 14 and an elastic hook rod 15 capable of hooking the locking pin 14. One end of the elastic hook rod 15 is hinged to a third hinge joint provided on the bottom plate of the cushion section 1, and a hook rod torsion spring is provided at the hinge. The locking pin 14 is transversely arranged on the side wall of the leg of the sliding frame 13 and is perpendicular to the leg. Two elastic hook rods 15 are provided, and the positions of the two elastic hook rods 15 are respectively opposite to the positions of the locking pin 14 when the telescopic transfer bed is in a flat unfolded state and a chair-like retracted state.

[0041] When in use, when the telescopic transfer bed is in the seat form, Figure 3 As shown in , at this time, the elastic hook rod 15 on the left side hooks the locking pin rod 14, and the sliding frame 13 cannot move to the right. To complete the unlocking, just pull down the elastic hook rod 15 on the left side. After the lock is released, the sliding frame 13 moves to the right. After switching to the flat state, the locking pin rod 14 pushes the elastic hook rod 15 on the right side, enters the elastic hook rod 15 on the right side, and can no longer move to the left, thereby achieving locking. Of course, in order to prevent excessive deflection of each section, an angle limiting structure is usually provided at the position of the hinge axis. This structure is generally a limit block, a limit rod, etc. Since the structure is relatively simple and conventional, it will not be repeated in the present invention. In order to facilitate the operation of the elastic hook rod 15, it can be that the bottom of the elastic hook rod 15 is connected to the pull ring 17 through a sling 16, and the operation is performed through the pull ring 17.

[0042] In the present invention, since the length of the sliding frame 13 is relatively long, in order to ensure its stability during movement, a guide block 20 is fixedly provided on the bottom plate of the cushion section 1 near the side of the backrest section 2. The position of the guide block 20 is opposite to the two legs of the sliding frame 13, and is sleeved outside the legs to form a sliding fit with the legs. Similarly, in order to further ensure the stability of the movement of the driving rod 8, guide rails 18 extending along the length direction of the telescopic transfer bed are also provided on the inner walls on both sides of the installation frame 4. A slider 19 matching the guide rail 18 is provided on the side wall of the driving rod 8. The slider 19 is clamped in the guide rail 18 to form a sliding fit with the guide rail 18, and the guide rail 18 and the slider 19 are used to achieve guidance.

[0043] In addition, due to the differences in height and body shape among different people, with reference to the existing wheelchair design, a head support 21 can be added to the end of the backrest section 2 away from the seat cushion section 1. The head support 21 is connected to the backrest section 2 through an insertion rod 22 and a plug set in the bottom plate of the backrest section 2 to achieve adjustment.

Claims

1. A nuclear magnetic resonance examination auxiliary device, characterized in that: It comprises a wheeled lifting base and a telescopic transfer bed detachably arranged on the wheeled lifting base; the wheeled lifting base can raise or lower the height of the telescopic transfer bed by lifting; The telescopic transfer bed comprises a seat cushion section (1), and a leg support section (3) and a backrest section (2) hingedly arranged at both ends of the seat cushion section (1); both sides of the bottom plates of the seat cushion section (1), the leg support section (3) and the backrest section (2) are provided with supporting wheel groups (0); a telescopic control mechanism is provided at the bottom of the seat cushion section (1), and the telescopic control mechanism is used to switch the seat cushion section (1), the leg support section (3) and the backrest section (2) between a flat unfolded state and a chair-like retracted state; The telescopic control mechanism comprises a backrest drive assembly, a leg support drive assembly, a linkage assembly and a mounting frame (4) arranged on the bottom plate of the seat cushion section (1); The backrest drive assembly comprises a U-shaped sliding frame (13), two legs of the sliding frame (13) extending from one end of the mounting frame (4) close to the backrest section (2), and forming a sliding fit with the mounting frame (4) along the length direction of the telescopic transfer bed; a first hinge joint (5) is provided at the end of the leg of the sliding frame (13), and the first hinge joint (5) is hinged to a second hinge joint (7) provided on the bottom plate of the backrest section (2) via a short-circuit rod (6); The leg support driving assembly comprises two driving rods (8) arranged in a mounting frame (4) on both sides of the sliding frame (13); guide sleeves (9) are arranged on both sides of the mounting frame (4) close to one end of the leg support section (3); the driving rod (8) passes through the guide sleeve (9) and also forms a sliding fit with the mounting frame (4) along the length direction of the telescopic transfer bed; a top wheel (10) for pushing the leg support section (3) to be lifted is arranged at one end of the driving rod (8) located outside the mounting frame (4); The linkage assembly comprises a fixed pulley (11) arranged on the outer wall of one end of the mounting frame (4) close to the leg support section (3), guide holes are arranged on the mounting frame (4) on both sides of the fixed pulley (11), and also comprises a linkage rope (12), one end of the linkage rope (12) is connected to the side rod on the side wall of the driving rod (8), and the other end passes through a guide hole, bypasses the fixed pulley (11), and then passes through another guide hole and is connected to the sliding frame (13).

2. The nuclear magnetic resonance examination auxiliary device according to claim 1, characterized in that: The telescopic control mechanism also includes a locking assembly for locking the position of the sliding frame (13); the locking assembly includes a locking pin rod (14) and an elastic hook rod (15) capable of hooking the locking pin rod (14), one end of the elastic hook rod (15) is hinged to a third hinge joint arranged on the bottom plate of the cushion section (1), and a hook rod torsion spring is arranged at the hinge; the locking pin rod (14) is transversely arranged on the side wall of the leg of the sliding frame (13) and is perpendicular to the leg; two elastic hook rods (15) are arranged, and the positions of the two elastic hook rods (15) are respectively opposite to the position of the locking pin rod (14) when the telescopic transfer bed is in a flat unfolded state and a chair-like retracted state.

3. The nuclear magnetic resonance examination auxiliary device according to claim 2, characterized in that: The bottom of the elastic hook rod (15) is connected to the pull ring (17) via a suspension rope (16).

4. The nuclear magnetic resonance examination auxiliary device according to claim 3, characterized in that: Guide rails (18) extending along the length direction of the telescopic transfer bed are also arranged on the inner walls on both sides of the installation frame (4); sliding blocks (19) matching the guide rails (18) are arranged on the side walls of the driving rod (8); the sliding blocks (19) are clamped in the guide rails (18) to form a sliding fit with the guide rails (18).

5. The nuclear magnetic resonance examination auxiliary device according to claim 4, characterized in that: A guide block (20) is fixedly arranged on the bottom plate of the seat cushion section (1) on the side close to the backrest section (2). The guide block (20) is located opposite to the two legs of the sliding frame (13) and is sleeved outside the legs to form a sliding fit with the legs.

6. The nuclear magnetic resonance examination auxiliary device according to claim 1, characterized in that: A headrest (21) is also provided at the end of the backrest section (2) away from the cushion section (1); the headrest (21) is plug-connected with the backrest section (2) via an insertion rod (22) and an insertion tube arranged in the bottom plate of the backrest section (2).

7. The nuclear magnetic resonance examination auxiliary device according to claim 1, characterized in that: The wheeled lifting base comprises a base frame (23) and a wheel group (24) with brakes arranged at the bottom of the base frame (23); it also comprises a support rod (25) arranged in the middle of the base frame (23), and a support plate (26) is arranged on the top of the support rod (25); a lifting rod (27) is arranged inside the support rod (25), and the lifting rod (27) is drivingly connected to a lifting drive mechanism arranged on the base frame (23); A connecting frame (28) is also provided at the bottom of the cushion section (1). When the lifting rod (27) rises, the connecting frame (28) can be lifted up, and when the lifting rod (27) descends, the connecting frame (28) can be pulled back and pressed against the support plate (26).

8. The nuclear magnetic resonance examination auxiliary device according to claim 7, characterized in that: The connecting frame (28) is a groove frame with an opening facing downward, and the cross section of the groove cavity of the groove frame is in a convex shape; the upper end of the lifting rod (27) is provided with a top pressure head (29) that matches the inner cavity of the groove frame, and the top surface of the top pressure head (29) is provided with a plurality of supporting rollers (30) arranged side by side. When the lifting rod (27) rises, the supporting rollers (30) form support for the groove frame.

9. The nuclear magnetic resonance examination auxiliary device according to claim 8, characterized in that: The bottom of the pressing head (29) and the bottom of the groove frame are provided with a positioning head (31) and a positioning groove (32) matched with the positioning head (31).

10. The nuclear magnetic resonance examination auxiliary device according to claim 9, characterized in that: A positioning head (31) and a positioning groove (32) are also provided between the top of the support plate (26) and the bottom of the slot frame.

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