CN115778364B

CN115778364B - Mobile nuclear magnetic resonance detection system

Info

Publication number: CN115778364B
Application number: CN202310065197.6A
Authority: CN
Inventors: 杨晓丽; 王前; 齐玉宁; 张义廷; 王兆连; 马晓鹏
Original assignee: Weifang Xinli Superconducting Magnet Technology Co ltd
Current assignee: Weifang Xinli Superconducting Magnet Technology Co ltd
Priority date: 2023-02-06
Filing date: 2023-02-06
Publication date: 2023-05-12
Anticipated expiration: 2043-02-06
Also published as: CN115778364A

Abstract

The invention discloses a mobile nuclear magnetic resonance detection system, which relates to the technical field of nuclear magnetic resonance detection equipment. The main body piece is used for nuclear magnetic resonance detection; the movable shielding piece is used for placing a person to be detected and is provided with a first sliding rail; the transfer piece comprises a vertical lifting piece, a shovel-type stretcher piece and a movable walking piece, wherein the vertical lifting piece is arranged at the top of the movable walking piece so as to drive the shovel-type stretcher piece to move in the vertical direction, the shovel-type stretcher piece is detachably connected with the vertical lifting piece, and the shovel-type stretcher piece is provided with a sliding piece capable of sliding along a first sliding rail. When the nuclear magnetic resonance detection system is used, a person to be detected is conveniently lifted, secondary damage of the person to be detected in the transferring process is effectively prevented, the transferring safety of the person to be detected is obviously improved, and the popularity, timeliness and flexibility of nuclear magnetic resonance detection are effectively improved.

Description

Mobile nuclear magnetic resonance detection system

Technical Field

The invention relates to the technical field of nuclear magnetic resonance detection equipment, in particular to a mobile nuclear magnetic resonance detection system.

Background

Magnetic resonance imaging is a noninvasive detection means, and plays an important role in research such as living organism research, modern medical diagnosis, physical chemistry and material science due to the remarkable characteristic of high soft tissue contrast.

Currently, in order to achieve the purpose of shielding external interference, a nuclear magnetic resonance inspection system on the market is generally fixedly installed in a nuclear magnetic resonance shielding room, and a person to be detected for nuclear magnetic resonance inspection needs to be sent into the nuclear magnetic resonance shielding room for inspection.

However, for some special testers, the special testers are inconvenient to move for a long distance due to the requirement of treatment, so that the special testers are difficult to send into a nuclear magnetic resonance shielding room for inspection, and particularly for the testers with spinal injuries, a narrow shielding cabin is very inconvenient for the testers to bend and drill into, and secondary injuries are easily caused to the spinal bones.

In summary, how to avoid secondary damage during the transfer process of the testee is a problem to be solved by those skilled in the art.

Disclosure of Invention

Therefore, the invention aims to provide a mobile nuclear magnetic resonance detection system, which can effectively prevent secondary damage from occurring in the transfer process of a person to be detected during use and remarkably improve the transfer safety of the person to be detected.

In order to achieve the above object, the present invention provides the following technical solutions:

a mobile nuclear magnetic resonance detection system, comprising:

the main body piece is used for nuclear magnetic resonance detection;

the mobile shielding piece is used for placing a person to be detected and is provided with a first sliding rail;

the transfer piece comprises a vertical lifting piece, a shovel-type stretcher and a movable walking piece, wherein the vertical lifting piece is arranged at the top of the movable walking piece, so that the shovel-type stretcher is driven to move in the vertical direction, the shovel-type stretcher is detachably connected with the vertical lifting piece, and the shovel-type stretcher is provided with a sliding piece capable of sliding along the first sliding rail.

Preferably, the vertical lifting part comprises a vertical lifting seat, a power assembly and two stretcher fixing seats, the power assembly is used for driving the vertical lifting seat to move in the vertical direction, the stretcher fixing seats can be horizontally and slidably arranged on the vertical lifting seat, and the two stretcher fixing seats can move in opposite directions or deviate from each other;

the shovel stretcher comprises two stretcher shovels which are horizontally arranged, and the stretcher shovels are detachably connected to the corresponding stretcher fixing seats.

Preferably, the vertical lifting seat is provided with an anti-slip groove, and the stretcher fixing seat is horizontally and slidably arranged in the anti-slip groove;

the vertical lifting seat is fixedly provided with a locking nut, and a locking bolt matched with the locking nut can be abutted to the stretcher fixing seat.

Preferably, the power assembly comprises a motor, a transmission rod, a worm and a worm wheel meshed with the worm, the transmission rod is rotatably arranged at the top of the movable travelling part, the worm wheel is coaxially fixed with the transmission rod, an output shaft of the motor is fixedly connected with the worm, and the vertical lifting seat is in threaded connection with the transmission rod.

Preferably, the movable walking member comprises a first self-locking wheel and a base, the transmission rod is rotatably arranged at the top of the base, the first self-locking wheel is arranged at the bottom of the base, and the first self-locking wheel is a self-locking wheel capable of self-locking relative to the base.

Preferably, the device further comprises a second sliding rail for supporting the main body piece and the movable shielding piece, wherein the main body piece and/or the movable shielding piece is/are slidably arranged on the second sliding rail;

the main body piece is provided with a detection cavity and a first electromagnetic shielding net for shielding the external electromagnetic of the detection cavity, and the detection cavity is provided with an opening for a person to be detected to move in and out;

the movable shield has a receiving cavity and a second electromagnetic shielding net for shielding external electromagnetic waves of the receiving cavity, the end of the first slide rail is positioned at the port of the receiving cavity, and the first electromagnetic shielding net is aligned with and closely butted with the second electromagnetic shielding net when the main body piece and/or the movable shield slide so that the port is butted with the opening to shield external electromagnetic waves.

Preferably, the device further comprises a thrust ball bearing, one of two ends of the thrust ball bearing, which are relatively movable, is horizontally fixed on the mounting seat of the movable shielding piece, the mounting seat is slidably arranged on the second sliding rail, and the other one is fixed on the bottom of the movable shielding piece, so that the movable shielding piece can be horizontally and rotatably mounted on the second sliding rail.

Preferably, the inside of holding the chamber is equipped with power device and has external screw thread catch bar, the slider with catch bar threaded connection, the one end of catch bar with power device's rotation output shaft fixed connection, the rotatable setting of the other end of catch bar in the inner wall of port one end.

Preferably, a first gear tooth is arranged at the bottom surface of the groove of the second sliding rail, a second self-locking wheel is arranged at the bottom of the main body part and the bottom of the movable shielding part, the second self-locking wheel is a self-locking wheel which can be self-locked relative to the main body part or the movable shielding part connected with the second self-locking wheel, a second gear tooth is arranged on the peripheral surface of the second self-locking wheel, and the first gear tooth is meshed with the second gear tooth.

Preferably, a stabilizing block is arranged between the inner side wall of the second sliding rail and the end face of the second self-locking wheel adjacent to the inner side wall of the second sliding rail so as to limit the movement of the main body piece and the movable shielding piece in the length direction perpendicular to the second sliding rail.

According to the mobile nuclear magnetic resonance detection system provided by the invention, the main body piece is used for nuclear magnetic resonance detection, and the mobile shielding piece is used for placing a person to be detected; the movable walking part is a mechanism for driving the transfer part to move, and the vertical lifting part is arranged at the top of the movable walking part, so that the movement of the shovel stretcher above the movable walking part is not limited by the movable walking part; the shovel stretcher can move in the vertical direction under the drive of the vertical lifting part; the shovel stretcher is detachably connected with the vertical lifting part; the movable shielding member is provided with a first slide rail, and the shovel stretcher is provided with a sliding member which can slide along the first slide rail, so that the shovel stretcher can slide along the first slide rail.

Compared with the prior art, the technical scheme has the following advantages:

according to the mobile nuclear magnetic resonance detection system, when the mobile nuclear magnetic resonance detection system is used, the shovel stretcher is moved to a proper height, the shovel structure is arranged below a person to be detected, so that the person to be detected or a bed board thereof is supported, the vertical lifting part moves upwards to lift the shovel stretcher, the person to be detected or the bed board on which the person to be detected lies is lifted, the height of the person to be detected is adjustable by the vertical lifting part, and the person to be detected can be transferred into the mobile shielding part under the driving of the mobile walking part; the sliding piece is embedded on the first sliding rail, so that the shovel stretcher slides along the first sliding rail, the shovel stretcher is detached from the vertical lifting piece, the transfer of a person to be detected to the movable shielding piece is completed, and then nuclear magnetic resonance detection of the person to be detected is completed through the main body piece.

In summary, in the process of transferring the to-be-detected person, the shovel structure is adopted, so that the to-be-detected person is lifted conveniently, the to-be-detected person can be always in a lying state in the transferring process, the moving shielding piece does not need to walk or drill, the spine and the like of the to-be-detected person do not need to be bent or rotated, secondary damage of the to-be-detected person in the transferring process is effectively prevented, and the transferring safety of the to-be-detected person is remarkably improved.

In a further technical scheme, the main body part and the movable shielding part are both arranged on the second sliding rail and are respectively provided with an electromagnetic shielding net, when the main body part and the movable shielding part slide to enable the main body part and the movable shielding part to be in butt joint or separation, the main body part and the movable shielding part can enable the first electromagnetic shielding net and the second electromagnetic shielding net to be in tight butt joint when the main body part and the movable shielding part slide to be in a butt joint state, so that external electromagnetic waves are shielded, magnetic leakage is prevented, and the accuracy of the nuclear magnetic resonance detection structure is effectively improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a transfer member according to an embodiment of the present invention;

FIG. 2 is a schematic view of another angle of a transfer member according to an embodiment of the present invention;

FIG. 3 is a front view of a transfer member according to an embodiment of the present invention;

FIG. 4 is a side view of a transfer member according to an embodiment of the present invention;

FIG. 5 is a schematic view of a main body and a movable shielding member according to an embodiment of the present invention;

fig. 6 is a cross-sectional view of a body member and a moving shield member according to an embodiment of the present invention.

In fig. 1 to 6, reference numerals include:

1 is a main body piece, and 11 is an opening;

2 is a movable shielding piece, 21 is a first sliding rail, 22 is a port, and 23 is a pushing rod;

3 is a transfer member;

31 is a vertical lifting piece, 311 is a vertical lifting seat, 312 is a power assembly, 3121 is a motor, 3122 is a transmission rod, 3123 is a worm, 3124 is a worm wheel, 313 is a stretcher fixing seat, 314 is a locking nut, and 315 is a locking bolt;

32 is a shovel stretcher, 321 is a sliding piece and 322 is a stretcher shovel;

33 is a movable walking member, 331 is a first self-locking wheel, 332 is a base, 4 is a second sliding rail, and 5 is a thrust ball bearing.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The core of the invention is to provide a mobile nuclear magnetic resonance detection system, which can effectively prevent secondary damage from occurring in the transfer process of a person to be detected and remarkably improve the transfer safety of the person to be detected.

Referring to fig. 1 to 6, fig. 1 is a schematic structural diagram of a transfer member according to an embodiment of the present invention; FIG. 2 is a schematic view of another angle of a transfer member according to an embodiment of the present invention; FIG. 3 is a front view of a transfer member according to an embodiment of the present invention; FIG. 4 is a side view of a transfer member according to an embodiment of the present invention; FIG. 5 is a schematic view of a main body and a movable shielding member according to an embodiment of the present invention; fig. 6 is a cross-sectional view of a body member and a moving shield member according to an embodiment of the present invention.

The invention provides a mobile nuclear magnetic resonance detection system which comprises a main body part 1, a mobile shielding part 2 and a transfer part 3. Wherein the main body part 1 is used for nuclear magnetic resonance detection; the movable shielding piece 2 is used for placing a person to be detected, and the movable shielding piece 2 is provided with a first sliding rail 21; the transfer part 3 comprises a vertical lifting part 31, a shovel stretcher 32 and a movable walking part 33, wherein the vertical lifting part 31 is arranged at the top of the movable walking part 33 to drive the shovel stretcher 32 to move in the vertical direction, the shovel stretcher 32 is detachably connected with the vertical lifting part 31, and the shovel stretcher 32 is provided with a sliding part 321 capable of sliding along the first sliding rail 21.

Specifically, the shovel stretcher 32 can move in the vertical direction under the drive of the vertical lifting element 31, along a sliding rail or any other way; the movable travelling member 33 is a mechanism for driving the whole transfer member 3 to travel, and the vertical lifting member 31 is arranged on the top of the movable travelling member 33, so that the movement of the shovel stretcher 32 above the movable travelling member 33 is not limited by the movable travelling member 33; the shovel stretcher 32 is detachably connected with the vertical lifting member 31, clamped or in any other way.

The moving screen 2 is provided with a first slide rail 21, and the spade stretcher 32 has a sliding member 321 that can slide along the first slide rail 21, so that the spade stretcher 32 can slide along the first slide rail 21, preferably, the length of the sliding member 321 is equal to the length of the spade stretcher 32, so that the sliding member 321 is always slidingly connected with the first slide rail 21 when the spade stretcher 32 slides along the first slide rail 21.

When the multifunctional portable detector is used, the shovel stretcher 32 is moved to a proper height, the shovel structure is arranged below a person to be detected, so that the function of supporting the person to be detected or a bed board thereof is achieved, the vertical lifting piece 31 moves upwards to lift the shovel stretcher 32, so that the person to be detected or the bed board on which the person to be detected lies is lifted, the height of the person to be detected is adjustable after the vertical lifting piece 31 lifts the person to be detected, and the person to be detected is transferred to the movable shielding piece 2 under the driving of the movable walking piece 33; the sliding piece 321 is embedded on the first sliding rail 21, so that the shovel stretcher 32 slides along the first sliding rail 21, the shovel stretcher 32 is detached from the upper surface of the vertical lifting piece 31, the transfer of a person to be detected to the movable shielding piece 2 is completed, and then nuclear magnetic resonance detection of the person to be detected is completed through the main body piece 1.

By using the mobile nuclear magnetic resonance detection system, in the process of transferring the to-be-detected person, the to-be-detected person is conveniently lifted by adopting the shovel structure, and the to-be-detected person does not need to walk or climb to lie on the mobile shielding piece 2, so that the spine of the to-be-detected person and the like do not need to be bent or rotated, the occurrence of secondary damage of the to-be-detected person in the transferring process is effectively prevented, the transfer safety of the to-be-detected person is obviously improved, and the popularity, timeliness and flexibility of nuclear magnetic resonance detection are improved.

On the basis of the above embodiment, the vertical lifting member 31 includes a vertical lifting seat 311, a power assembly 312 and two stretcher fixing seats 313, the power assembly 312 is used for driving the vertical lifting seat 311 to move in a vertical direction, the stretcher fixing seats 313 can be horizontally and slidably arranged on the vertical lifting seat 311, and the two stretcher fixing seats 313 can move in opposite directions or in opposite directions; the spade stretcher 32 includes two horizontally disposed stretcher spades 322, and the stretcher spades 322 are detachably connected to corresponding stretcher fixing bases 313.

Specifically, the two stretcher fixing bases 313 are respectively connected with the two stretcher shovels 322, and are detachably connected, the stretcher fixing bases 313 are in sliding connection with the vertical lifting base 311, any devices such as sliding rails and dovetail grooves can be in sliding connection, and the sliding devices of the vertical lifting base 311 for the stretcher fixing bases 313 to slide are horizontally arranged, so that the two stretcher fixing bases 313 can move in opposite directions or deviate from each other in the horizontal direction, preferably, the two stretcher shovels 322 can move independently instead of synchronously, and thus the two stretcher shovels 322 can be freely adjusted to any position; the stretcher shovels 322 are of shovel-shaped structures, the stretcher shovels 322 horizontally extend out, and the shapes of the two stretcher shovels 322 can be the same or different.

The stretcher fixing seat 313 is characterized in that one side is in sliding fit with the vertical lifting seat 311, and the other side is provided with a connecting convex rod; a connecting groove is formed in one side, connected with the stretcher fixing seat 313, of the stretcher shovel 322 and is spliced with the connecting convex rod, so that the stretcher shovel 322 is detachably connected with the stretcher fixing seat 313; the outer side surfaces of the two stretcher shovels 322 in the length direction are provided with sliding pieces 321 which can slide along the first sliding rail 21, so that the stretcher shovels 322 can slide along the first sliding rail 21. Preferably, the adjacent inner sides of the two stretcher blades 322 are of a small thickness so as to be easily inserted under the body of the person to be examined. When in use, the connecting convex rod is pulled out of the connecting groove, so that the shovel stretcher 32 is detached from the stretcher fixing seat 313. The length, width, number, and the like of the connecting rods are not limited as long as the maximum load capacity of the transfer element 3 is satisfied.

When in use, the transfer piece 3 is moved to the position of a person to be detected, the vertical lifting seat 311 is driven by the power assembly 312 to move upwards or downwards, the vertical lifting seat is adjusted to the lower part of the person to be detected, the two stretcher shovels 322 are adjusted to span the two sides of the person to be detected, and the two stretcher shovels 322 are close to each other so that the two stretcher shovels are inserted under the person to be detected; when the two stretcher shovels 322 move independently, after the to-be-detected person is slightly lifted from one side, the stretcher shovels 322 on the lifted side of the to-be-detected person are pushed to enter a preset position under the side of the to-be-detected person, then medical staff move to the other side of the to-be-detected person, the stretcher shovels 322 on the other side of the to-be-detected person are pushed to enter a preset position under the other side of the to-be-detected person after being slightly lifted, and the two stretcher shovels 322 can be adjusted to different positions under the to-be-detected person; the person to be tested is placed on the moving screen 2 together with the spade stretcher 32, and then the stretcher spade 322 is detached from the stretcher fixing base 313, so that the stretcher spade 322 slides along the first slide rail 21, thereby transferring the person to be tested to the moving screen 2. The two stretcher shovels 322 can save the space required by operation, and are suitable for a narrow space, and when the two stretcher shovels 322 can independently move, the two stretcher shovels can adapt to different shapes or recumbents of a person to be detected, and the like.

On the basis of the embodiment, the vertical lifting seat 311 is provided with an anti-drop chute, and the stretcher fixing seat 313 can be horizontally and slidably arranged on the anti-drop chute; a locking nut 314 is fixed on the vertical lifting seat 311, and a locking bolt 315 matched with the locking nut 314 can be abutted against the stretcher fixing seat 313.

Specifically, the vertical lifting seat 311 is connected with the stretcher fixing seat 313 through an anti-slip groove, and any type of anti-slip grooves such as a T-shaped groove, a dovetail groove and the like; the locking nut 314 is fixed to the vertical lifting seat 311, and a through hole is formed in the position where the locking nut 314 is fixed by the vertical lifting seat 311, the through hole is communicated with a central threaded hole of the locking nut 314, and a locking bolt 315 matched with the locking nut 314 can pass through the locking nut 314 and the through hole at the same time.

When the stretcher is used, the locking bolt 315 is screwed into the locking nut 314 and then is abutted against the stretcher fixing seat 313, so that the stretcher fixing seat 313 can be locked in the anti-slip groove and cannot slide randomly along the linear direction of the anti-slip groove, and when the transfer piece 3 carries a person to be detected, the stretcher shovel 322 is locked by using the locking nut 314 and the locking bolt 315, so that the damage to the person to be detected caused by random sliding of the stretcher shovel 322 is avoided; when the transfer piece 3 is not used, the stretcher shovel 322 is locked, the stretcher shovel 322 is prevented from being damaged by random sliding, the service life of the transfer piece 3 is prolonged, the locking mode is easy to operate and quick, the popularization is convenient, and the cost is reduced.

On the basis of the above embodiment, the power assembly 312 includes a motor 3121, a transmission rod 3122, a worm 3123 and a worm gear 3124 meshed with the worm 3123, the transmission rod 3122 is rotatably disposed at the top of the movable walking member 33, the worm gear 3124 is coaxially fixed with the transmission rod 3122, an output shaft of the motor 3121 is fixedly connected with the worm 3123, and the vertical lifting seat 311 is in threaded connection with the transmission rod 3122.

Specifically, the transmission rod 3122 is rotatably disposed at the top of the movable walking member 33, the worm wheel 3124 is fixed to the transmission rod 3122, and any fixing means such as welding or bonding is adopted, and the rotation center axis of the worm wheel 3124 is collinear with the rotation center axis of the transmission rod 3122; the output shaft of the motor 3121 is connected to the worm 3123, and the worm gear 3124 is engaged with the worm 3123, so that the transmission lever 3122 rotates with the rotation of the worm gear 3124; the peripheral surface of the transmission rod 3122 is provided with external threads, and the vertical lifting seat 311 is provided with a threaded hole adapted to the transmission rod 3122, so that the vertical lifting seat 311 can move up or down along the transmission rod 3122 along with the rotation of the transmission rod 3122. The power assembly 312 converts the horizontal rotation of the output shaft of the motor 3121 into the vertical linear motion of the vertical lifting seat 311, so that the transfer member 3 has compact and small structure and is suitable for a narrow space; the threaded connection between the transmission rod 3122 and the vertical lifting seat 311 is safe and reliable, and the situation that the sliding causes impact to the person to be detected is effectively avoided.

The motor 3121 may be a biaxial motor or a uniaxial motor, preferably, as shown in fig. 1 to 4, two worm 3123, worm gear 3124 and transmission rod 3122 are provided, wherein one worm 3123 is fixedly connected with the free end of one output shaft of the motor 3121, and the other worm 3123 is fixedly connected with the free end of the other output shaft of the motor 3121; the two worm gears 3124 are fixed to the corresponding transmission levers 3122, respectively, and the two worm gears 3124 are engaged with the corresponding worm 3123; the vertical lifting seat 311 is provided with two threaded holes, the transmission rod 3122 is meshed with the corresponding threaded holes, and when the output shaft of the motor 3121 rotates, the worm 3123 and the worm wheel 3124 drive the two transmission rods 3122 to rotate at the same time, so as to drive the vertical lifting seat 311 to move vertically.

The meshing of the two worm gears 3124 and the worm 3123 simultaneously acts on different positions of the vertical lifting seat 311, so as to limit unnecessary rotation freedom of the vertical lifting seat 311 and prevent the vertical lifting seat 311 from damaging a person to be detected from rotating; the use of a double-shaft motor is beneficial to the synchronous rotation of the two transmission rods 3122, so that the horizontally arranged vertical lifting seat 311 cannot incline, and the to-be-detected person is prevented from sliding off from the upper surface of the transfer piece 3 and being secondarily injured.

Of course, any other type of power assembly 312 may be used herein, as long as vertical movement of the vertical lift base 311 is achieved.

Further, as shown in fig. 1 and 2, a sliding rod is disposed in parallel at the adjacent position of the transmission rod 3122, and the vertical lifting seat 311 is provided with a hole matched with the sliding rod, so as to enhance the bearing performance and avoid secondary damage to the person to be detected when an emergency such as breaking occurs on one transmission rod 3122.

On the basis of the above embodiment, the moving member 33 includes a first self-locking wheel 331 and a base 332, the transmission rod 3122 is rotatably disposed at the top of the base 332, the first self-locking wheel 331 is disposed at the bottom of the base 332, and the first self-locking wheel 331 is a self-locking wheel capable of self-locking relative to the base 332.

Specifically, the first self-locking wheels 331 are rotatably fixed at the bottom of the base 332, as shown in fig. 1 to 4, preferably, four first self-locking wheels 331 are disposed at the bottom of the base 332, and the four first self-locking wheels 331 are rectangular, so that the stability of the arrangement is high, and of course, the first self-locking wheels 331 can be disposed at any other position and any number, so long as the movable travelling member 33 is ensured to stably travel. The first self-locking wheel 331 can be self-locked relative to the base 332, and when the transfer piece 3 stops, the first self-locking wheel 331 is locked, the transfer piece 3 is stably stopped, the transfer piece 3 is prevented from moving autonomously, and a person to be detected is protected to the greatest extent.

The wheel type walking mode is preferable, the walking mode is light and convenient, easy to push, high in damping performance, beneficial to protecting the detected person and low in cost. Of course, any other type of walking means, such as crawler walking or the like, may be employed as long as the travel of the transfer member 3 can be achieved.

Preferably, the base 332 is rectangular in configuration with a distance between the sides that is greater than the width of the patient bed to facilitate transfer of the patient on the patient bed to the stretcher blade 322, which type of base 332 is strong and stable in support.

On the basis of any one of the above embodiments, the device further comprises a second sliding rail 4 for supporting the main body 1 and the movable shielding member 2, wherein the main body 1 and/or the movable shielding member 2 is slidably arranged on the second sliding rail 4; the main body 1 is provided with a detection cavity and a first electromagnetic shielding net for shielding the external electromagnetic of the detection cavity, and the detection cavity is provided with an opening 11 for a person to be detected to move in and out; the movable shield 2 has a receiving cavity and a second electromagnetic shielding net for shielding external electromagnetic waves of the receiving cavity, and an end of the first slide rail 21 is located at a port 22 of the receiving cavity, and when the body member 1 and/or the movable shield 2 slide to dock the port 22 with the opening 11, the first electromagnetic shielding net is docked with the second electromagnetic shielding net to shield external electromagnetic waves.

Specifically, the main body 1 is a shell structure with a detection cavity for accommodating the whole or part of the person to be detected, a nuclear magnetic resonance scanning part is arranged in the shell structure and used for carrying out nuclear magnetic resonance detection on the person to be detected, the shell structure is provided with an opening 11 for the person to be detected to move in and out of the detection cavity, a first electromagnetic shielding net capable of shielding the electromagnetic outside the detection cavity is arranged in the shell, and the first electromagnetic shielding net is adhered to the inner surface of the shell structure or packaged in the shell structure.

The movable shielding member 2 is a shell with an accommodating cavity for accommodating the whole person to be detected, the shell is provided with a port 22 for the person to be detected to move in and out of the accommodating cavity, and a second electromagnetic shielding net capable of shielding the electromagnetic outside the accommodating cavity is arranged inside the shell and is adhered to the inner layer surface of the shell or packaged inside the shell; the inside of the shell is provided with a first sliding rail 21, and the end part of the first sliding rail 21 is positioned at the port 22 of the shell, so that a person to be detected can slide into the accommodating cavity from the port 22 along the first sliding rail 21.

The main body piece 1 and the movable shielding piece 2 are both arranged on the second sliding rail 4 in a sliding manner, the port 22 can be abutted to the opening 11 by sliding the main body piece 1 or the movable shielding piece 2, preferably, two parallel second sliding rails 4 are arranged, so that the sliding process of the main body piece 1 and the movable shielding piece 2 is more stable, and the protection of a person to be detected is facilitated.

It may be realized that the first electromagnetic shielding net is exposed at the opening 11, the second electromagnetic shielding net is exposed at the port 22, and when the port 22 is in butt joint with the opening 11, the first electromagnetic shielding net is aligned with and in tight butt joint with the second electromagnetic shielding net so as to shield external electromagnetic waves and limit magnetic leakage, and of course, the first electromagnetic shielding net at the opening 11 and the second electromagnetic shielding net at the port 22 may also be set in any other way, for example, the first electromagnetic shielding net is exposed at the opening 11 to form a plug, the port 22 is provided with a plug-in port for connecting the second electromagnetic shielding net, and when the port 22 is in butt joint with the opening 11, the plug-in port of the first electromagnetic shielding net is in tight plug-in connection with the plug-in port 22, so long as the first electromagnetic shielding net and the second electromagnetic shielding net can be guaranteed to be tightly connected.

When the movable shielding member is used, a to-be-detected person and the shovel stretcher 32 are transferred to the port 22 of the movable shielding member 2 by using the transfer member 3, the sliding member 321 is embedded on the first sliding rail 21, then the shovel stretcher 32 is detached from the vertical lifting member 31, and the shovel stretcher 32 slides along the first sliding rail 21, so that the to-be-detected person is transferred to the accommodating cavity of the movable shielding member 2, and the transfer of the to-be-detected person to the movable shielding member 2 is completed; the main body 1 or the movable shielding member 2 is slid, the port 22 is butted with the opening 11, the first electromagnetic shielding net and the second electromagnetic shielding net are butted, a closed electromagnetic shielding net is formed, and therefore the external electromagnetism of the cavity and the detection cavity is contained, an environment required for nuclear magnetic resonance detection is created for the main body 1, and the detection is started after the completion; after the start of the inspection, the shovel stretcher 32 slides along the first slide rail 21, so that the person to be inspected is transferred into the inspection cavity of the main body 1 connected with the movable shielding member 2, and nuclear magnetic resonance inspection of the person to be inspected is completed by using the main body 1. The nuclear magnetic resonance detection device is portable, can shield external electromagnetism, can move to any position to carry out nuclear magnetic resonance detection on a person to be detected, and further improves popularity, timeliness and flexibility of nuclear magnetic resonance detection.

The material, type, etc. of the electromagnetic shielding net are not limited, and the external electromagnetic shielding of the accommodating chamber and the detecting chamber is ensured.

In this embodiment, the main body 1 and the movable shielding member 2 are disposed on the second sliding rail 4, and the transferring member 3 is independently disposed, so that the transferring member 3 can flexibly move when transferring the person to be detected. Of course, any other type of positional relationship may be adopted herein, for example, the main body member 1, the movable shielding member 2, and the transfer member 3 are all disposed together, as long as smooth transfer of the person to be detected can be achieved without magnetic leakage.

Further, an electromagnetic shielding ring is arranged at the interface of the opening 11 and the port 22, so that external electromagnetic waves are prevented from entering the accommodating cavity and the detecting cavity at the interface of the first electromagnetic shielding net and the second electromagnetic shielding net.

On the basis of the above embodiment, the device further comprises a thrust ball bearing 5, wherein one of two ends of the thrust ball bearing 5, which are relatively movable, is horizontally fixed on a mounting seat of the movable shielding member 2, the mounting seat is slidably arranged on the second sliding rail 4, and the other is fixed on the bottom of the movable shielding member 2, so that the movable shielding member 2 can be horizontally and rotatably mounted on the second sliding rail 4.

Specifically, as shown in fig. 6, one of the two ends of the thrust ball bearing 5 that are relatively movable is horizontally fixed on the mounting base, and the movable shield 2 is horizontally fixed on the other one of the two ends of the thrust ball bearing 5 that are relatively movable, so that the movable shield 2 is horizontally and circumferentially rotated on the mounting base along with the rotation of the thrust ball bearing 5.

Preferably, the lockable thrust ball bearing 5 is selected to enable the movable shielding member 2 to be circumferentially locked to a predetermined position, and the movable shielding member 2 cannot be randomly rotated when a person to be detected moves into or out of the accommodating cavity, so that secondary damage to the person to be detected is avoided. Of course, locking means, such as ropes or the like, alone, or any other type of locking means may be provided here, as long as locking of the moving shield 2 is achieved.

In use, the mobile screen 2 is rotated, the port 22 is rotated to a first predetermined position, the shovel stretcher 32 is fed into the accommodating cavity, after the whole person to be detected enters, the shovel stretcher 32 is detached from the stretcher fixing base 313, the mobile screen 2 is rotated, the port 22 reaches a second predetermined position, and then the body member 1 or the mobile screen 2 is slid, so that the port 22 is butted with the opening 11.

On the basis of the above embodiment, the power device and the push rod 23 with external threads are arranged in the accommodating cavity, the sliding piece 321 is in threaded connection with the push rod 23, one end of the push rod 23 is fixedly connected with the rotating output shaft of the power device, and the other end of the push rod 23 is rotatably arranged on the inner wall of one end of the port 22.

Specifically, a power device is fixedly arranged in the accommodating cavity, the push rod 23 is a rod with threads on the peripheral surface, one end of the push rod 23 is fixedly connected with a rotating output shaft of the power device, the power device can be realized, a motor or any other device for outputting rotation is adopted by the power device, the other end of the push rod 23 is rotatably arranged on the inner wall of one end of the port 22 of the movable shielding piece 2, and the push rod 23 is parallel to the first sliding rail 21; the sliding piece 321 is provided with a threaded hole matched with the pushing rod 23, and then the sliding piece 321 can be pushed to move by the rotation of the pushing rod 23, and the first sliding rail 21 in the accommodating cavity guides the sliding piece 321 to move along the linear direction of the first sliding rail 21, preferably, as shown in fig. 5, two first sliding rails 21 are arranged in parallel, the two sliding pieces 321 are respectively arranged on the outer side surfaces of the two stretcher shovels 322, and the two sliding pieces 321 respectively move along the respective first sliding rails 21, so that a to-be-detected person slides stably along with the stretcher shovels 322, and the protection of the to-be-detected person is facilitated.

Further, a bearing plate is arranged between the first sliding rail 21 and the inner wall of the movable shielding member 2, as shown in fig. 6, the bearing plate is a U-shaped plate, and the bearing plate is arranged at the bottom of the accommodating cavity, so that the bearing capacity of the movable shielding member 2 is improved. Still further, a space is reserved between the first slide rail 21 and the bottom of the receiving chamber, in which space an oxygen supply system is provided for supplying oxygen to the patient.

On the basis of the embodiment, the bottom surface of the bottom of the second sliding rail 4 is provided with first gear teeth, the bottom of the main body part 1 and the bottom of the movable shielding part 2 are both provided with second self-locking wheels, the second self-locking wheels are self-locking wheels which can be self-locked relative to the connected main body part 1 or the movable shielding part 2, the peripheral surface of the second self-locking wheels is provided with second gear teeth, and the first gear teeth are meshed with the second gear teeth.

Specifically, the first gear teeth are arranged on the bottom surface of the groove of the second sliding rail 4, the lockable second self-locking wheels are arranged at the bottom of the main body piece 1 and the bottom of the movable shielding piece 2, and the second gear teeth are arranged on the peripheral surface of the second self-locking wheels, so that the main body piece 1 and the movable shielding piece 2 can move along the second sliding rail 4.

In use, the first gear teeth engage with the second gear teeth, one or both of the body member 1 and the moving shield member 2 slide, interfacing the port 22 with the opening 11. When the port 22 and the opening 11 are in a butt joint state, the second self-locking wheel is locked, so that the first electromagnetic shielding net and the second electromagnetic shielding net are prevented from being disconnected and magnetic leakage, the detection result is accurate, and secondary damage caused by the fact that the port 22 and the opening 11 are disconnected and pulled by a person to be detected is avoided.

On the basis of the embodiment, a stabilizing block is arranged between the inner side wall of the second sliding rail 4 and the end face of the adjacent second self-locking wheel so as to limit the movement of the main body part 1 and the movable shielding part 2 perpendicular to the length direction of the second sliding rail 4.

Specifically, the stabilizing block is of a rectangular block structure, the length of the stabilizing block is equal to that of the second sliding rail 4, the two stabilizing blocks are respectively arranged between two end faces of the second self-locking wheel and the inner side wall of the adjacent second sliding rail 4, when the main body 1 and the movable shielding piece 2 move along the second sliding rail 4, the main body 1 and the movable shielding piece 2 shake or move towards the direction perpendicular to the second sliding rail 4, the main body 1 and the movable shielding piece 2 are tightly butted, the tight connection of the first electromagnetic shielding net and the second electromagnetic shielding net is realized, and magnetic leakage is prevented.

It should be noted that, the above terms "external, internal, top, bottom" and the terms "upper, lower, left, right" are defined based on the drawings of the specification.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

The mobile nuclear magnetic resonance detection system provided by the invention is described in detail above. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.

Claims

1. A mobile nuclear magnetic resonance detection system, comprising:

a main body (1) for nuclear magnetic resonance detection;

a mobile screen (2) for placing a person to be detected, provided with a first slide rail (21);

the transfer piece (3) comprises a vertical lifting piece (31), a shovel stretcher (32) and a movable walking piece (33), wherein the vertical lifting piece (31) is arranged at the top of the movable walking piece (33) so as to drive the shovel stretcher (32) to move in the vertical direction, the shovel stretcher (32) is detachably connected with the vertical lifting piece (31), and the shovel stretcher (32) is provided with a sliding piece (321) capable of sliding along the first sliding rail (21);

the vertical lifting part (31) comprises a vertical lifting seat (311), a power assembly (312) and two stretcher fixing seats (313), the power assembly (312) is used for driving the vertical lifting seat (311) to move in the vertical direction, the stretcher fixing seats (313) can be horizontally and slidably arranged on the vertical lifting seat (311), and the two stretcher fixing seats (313) can move in opposite directions or in opposite directions;

the shovel stretcher (32) comprises two stretcher shovels (322) which are horizontally arranged, and the stretcher shovels (322) are detachably connected to the corresponding stretcher fixing seats (313).

2. The mobile nuclear magnetic resonance detection system according to claim 1, wherein the vertical lifting seat (311) is provided with an anti-drop chute, and the stretcher fixing seat (313) is horizontally slidably arranged in the anti-drop chute;

the vertical lifting seat (311) is fixedly provided with a locking nut (314), and a locking bolt (315) matched with the locking nut (314) can be abutted to the stretcher fixing seat (313).

3. The mobile nuclear magnetic resonance detection system according to claim 1, wherein the power assembly (312) comprises a motor (3121), a transmission rod (3122), a worm (3123) and a worm wheel (3124) meshed with the worm (3123), the transmission rod (3122) is rotatably arranged at the top of the movable walking member (33), the worm wheel (3124) is coaxially fixed with the transmission rod (3122), an output shaft of the motor (3121) is fixedly connected with the worm (3123), and the vertical lifting seat (311) is in threaded connection with the transmission rod (3122).

4. A mobile nuclear magnetic resonance detection system according to claim 3, wherein the mobile walking member (33) comprises a first self-locking wheel (331) and a base (332), the transmission rod (3122) is rotatably arranged at the top of the base (332), the first self-locking wheel (331) is arranged at the bottom of the base (332), and the first self-locking wheel (331) is a self-locking wheel capable of self-locking relative to the base (332).

5. Mobile nuclear magnetic resonance detection system according to any one of claims 1 to 4, further comprising a second slide rail (4) for supporting the body member (1) and the mobile shield (2), the body member (1) and/or the mobile shield (2) being slidably arranged to the second slide rail (4);

the main body piece (1) is provided with a detection cavity and a first electromagnetic shielding net for shielding the external electromagnetic of the detection cavity, and the detection cavity is provided with an opening (11) for a person to be detected to move in and out;

the movable shielding member (2) is provided with a containing cavity and a second electromagnetic shielding net for shielding external electromagnetic waves of the containing cavity, the end part of the first sliding rail (21) is positioned at a port (22) of the containing cavity, and when the main body member (1) and/or the movable shielding member (2) slide so that the port (22) is in butt joint with the opening (11), the first electromagnetic shielding net is aligned with and tightly butted with the second electromagnetic shielding net to shield external electromagnetic waves and limit magnetic leakage.

6. The mobile nuclear magnetic resonance detection system according to claim 5, further comprising a thrust ball bearing (5), one of two ends of the thrust ball bearing (5) that are relatively movable being horizontally fixed to a mount of the mobile shield (2), the mount being slidably provided to a second slide rail (4), the other being fixed to a bottom of the mobile shield (2) such that the mobile shield (2) is horizontally rotatably mounted to the second slide rail (4).

7. The mobile nuclear magnetic resonance detection system according to claim 6, wherein the power device and a push rod (23) with external threads are arranged in the accommodating cavity, the sliding piece (321) is in threaded connection with the push rod (23), one end of the push rod (23) is fixedly connected with a rotation output shaft of the power device, and the other end of the push rod (23) is rotatably arranged on the inner wall of one end of the port (22).

8. The mobile nuclear magnetic resonance detection system according to claim 5, wherein a first gear tooth is disposed at the bottom surface of the second sliding rail (4), a second self-locking wheel is disposed at the bottom of the main body member (1) and the bottom of the mobile shielding member (2), the second self-locking wheel is a self-locking wheel capable of self-locking with respect to the main body member (1) or the mobile shielding member (2) to which the second self-locking wheel is connected, a second gear tooth is disposed on the peripheral surface of the second self-locking wheel, and the first gear tooth is meshed with the second gear tooth.

9. The mobile nuclear magnetic resonance detection system according to claim 8, wherein a stabilizing block is provided between the inner side wall of the second slide rail (4) and the end face of the adjacent second self-locking wheel to limit the movement of the main body member (1) and the movable shielding member (2) perpendicular to the length direction of the second slide rail (4).