CN113243905B

CN113243905B - Nuclear magnetic resonance detection system

Info

Publication number: CN113243905B
Application number: CN202110483298.6A
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Individual
Current assignee: Kalefu Medical Technology Group Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2023-01-24
Anticipated expiration: 2041-04-30
Also published as: CN113243905A

Abstract

The invention discloses a nuclear magnetic resonance detection system, which at least comprises a nuclear magnetic resonance body with an inspection cavity and a lifting platform, wherein under the condition that the nuclear magnetic resonance detection system is provided with a detector for acquiring environmental state data, the nuclear magnetic resonance detection system is configured as follows: determining a real-time distance between the moving object and the nuclear magnetic resonance body based on the environmental state data; in the event of a sustained reduction in the real-time distance, the lift platform is configured to switch from a first configuration in which the lift platform is substantially perpendicular to the ground to a second configuration in which the lift platform is substantially parallel to the ground, such that the examination cavity can be substantially enclosed by the lift platform. This application can seal the inspection chamber when using, and then the patient appears and is adsorbed by the nuclear magnetic resonance body together with ironwork, and the patient can contact with lift platform, because lift platform is flat-plate-shaped, can reduce the patient and press from both sides between nuclear magnetic resonance body and ironwork and the risk degree that can't take off.

Description

Nuclear magnetic resonance detection system

Technical Field

The invention belongs to the technical field of medical detection equipment, and particularly relates to a nuclear magnetic resonance detection system.

Background

Magnetic Resonance Imaging (MRI) is an imaging technique that reconstructs an image by collecting signals generated by a magnetic resonance phenomenon. MRI can visualize lesions that are not visible by CT, and is a significant development in the field of medical imaging. The basic principle of magnetic resonance imaging is that hydrogen atoms contained in human body will resonate after given specific high wave under strong magnetic field to generate a high wave number electromagnetic wave. It is this property that nuclear magnetic resonance uses an electronic computer to collect, process and pattern the changes in the magnetic field. Magnetic resonance imaging can reveal fat, whole body organs, muscles, rapidly flowing blood, bone, air, and the like. Can clearly display the internal structure of the viscera. The doctor can well identify the pathological changes of the patient such as tumor, inflammation, necrotic focus, abnormal substance deposition, function obstruction, blood circulation obstruction and the like. The diagnosis of various diseases of the nervous system, the chest, the abdomen and the limbs is greatly facilitated.

Because of the nuclear magnetic resonance photography, the magnetic field is 3 ten thousand times of the earth, and the magnetic field has super strong magnetic force and is like a super large magnet. Six populations are not amenable to nuclear magnetic resonance examination: even a person who is equipped with a cardiac pacemaker, a person who has or is suspected of having a metallic foreign body in an eyeball, a person who has a silver clip ligation of an aneurysm, a person who has a metallic foreign body reserve or a metallic prosthesis in the body, a critically ill patient who is at risk of life, a patient with claustrophobia, and the like. The monitoring instrument, the rescue equipment and the like cannot be brought into the nuclear magnetic resonance examination room, so for the sake of safety, except for avoiding carrying metal into a magnetic field area, the nuclear magnetic resonance imaging cannot be accepted by a person who is provided with metal articles to be placed in the body, such as a heart rhythm device, a brain metal clamp, a steel nail left in the body during a fracture (symptom, treatment, prevention and common sense) operation, or a person who is easy to have scrap iron residues in eyes. Moreover, the sound of the nuclear magnetic resonance imaging examination is quite loud, and a patient needs to receive certain psychological counseling before the examination, so that the nuclear magnetic resonance examination can be completed more smoothly. When the existing nuclear magnetic resonance detection equipment is used, the nuclear magnetic resonance detection cavity is in an open state, and the risk that ferromagnetic articles are sucked is easily generated. The present application therefore aims to provide a nuclear magnetic resonance detection system that overcomes the above-mentioned drawbacks.

Disclosure of Invention

The invention aims to provide a nuclear magnetic resonance detection system.

The technical scheme adopted by the invention for realizing the purpose is as follows: nuclear magnetic resonance detecting system includes the nuclear magnetic resonance body that has the inspection chamber at least to and lift platform, under the nuclear magnetic resonance detecting system disposes the detector that is used for gathering environmental condition data, nuclear magnetic resonance detecting system configures to: determining a real-time distance of a moving object from a nuclear magnetic resonance body based on the environmental status data; in the event that the real-time distance continues to decrease, the lift platform is configured to switch from a first configuration, in which the lift platform is substantially perpendicular to the ground, to a second configuration, in which the lift platform is substantially parallel to the ground, such that the examination cavity can be substantially enclosed by the lift platform.

Preferably, the nuclear magnetic resonance detection system is further configured to: under the condition that the real-time distance is continuously reduced, determining a first time length consumed for reducing the real-time distance to zero; and under the condition that the second time length consumed for switching the lifting platform from the first form to the second form is longer than the first time length, adjusting the second time length to enable the second time length to be shorter than the first time length.

Preferably, the lifting platform is provided with a first support body and a second support body, and under the condition that the lifting platform is in the first state and a user abuts against and contacts the lifting platform in a standing manner, the first support body and the second support body can provide supporting force for the user to assist the user in standing. The utility model provides a lift platform can be in with the ground vertically state, when the patient need lie flat on lift platform, the patient can stand in lift platform's right side, and at this moment, medical personnel or family members can stand in patient's rear side when assisting the patient. Compared with the prior art, medical staff or family members need to stand on the left side and the right side of the lifting platform, the nuclear magnetic resonance detection system can work normally only by occupying a smaller area.

Preferably, the lifting platform is provided with a headrest part for supporting the head of the patient, a head cover part with a hollow cavity, a support part for supporting the patient, and a first compression spring, wherein the support part can be coupled with the first compression spring, so that when the lifting platform is in the second form, the first compression spring can accumulate elastic potential energy based on external force exerted on the support part, and in the process of switching the lifting platform from the second form to the first form, the external force is gradually reduced to release the elastic potential energy, wherein the released elastic potential energy acts on the patient through the support part to enable the head of the patient to enter the hollow cavity.

Preferably, the lifting platform is provided with a first inflatable air bag coupled with the supporting portion, and in case that the supporting portion is impacted by an external force, the volume of the first inflatable air bag can be reduced and the first compression spring can be stretched.

Preferably, a second inflatable airbag capable of being wound around the neck of the patient is arranged on the headrest portion, the hood portion is provided with a through hole, the first inflatable airbag is in one-way communication with the second inflatable airbag, the support portion can extrude the first inflatable airbag so that gas in the first inflatable airbag enters the second inflatable airbag when the lifting platform is switched from the second state to the first state so that the head of the patient enters the hollow cavity through the through hole, and the second inflatable airbag can expand to be in abutting contact with the inner wall of the through hole.

Preferably, the second inflatable air bag is provided with a plurality of exhaust channels, and when the internal pressure of the second inflatable air bag is greater than a set threshold value, the exhaust channels can be opened to enable the gas in the second inflatable air bag to enter the hollow cavity.

Preferably, lift platform includes first bed board, second bed board, slide rail and fixed plate at least, and the first end of first bed board articulates to the second end of second bed board, and when contained angle alpha between first bed board and the second bed board was roughly equal to 90, lift platform is in first form when contained angle alpha was roughly equal to 180, lift platform is in the second form, be provided with first sliding part on the first end, be provided with the second sliding part on the second end, first sliding part sliding connection to the fixed plate so that first sliding part can slide along first orbit, second sliding part sliding connection to the slide rail is so that the second sliding part can slide along the second orbit, first orbit with the second orbit is roughly perpendicular. Even the patient appears and is adsorbed by the nuclear magnetic resonance body together with ironwork the condition, the patient can contact with lift platform, because lift platform is flat, can reduce the patient and press from both sides the risk degree that can't take off between nuclear magnetic resonance body and ironwork, and then can improve the degree of safety of nuclear magnetic resonance equipment when using.

Preferably, the resonance detection system further comprises a metal detector coupled to the nuclear magnetic resonance body, the metal detector configured to: before the nuclear magnetic resonance body is started, scanning and detecting a space in a set range around the nuclear magnetic resonance body, wherein under the condition that a ferromagnetic article is not detected in the space, a control command is sent to the nuclear magnetic resonance body to prompt the nuclear magnetic resonance body to start.

Preferably, the probe is coupled to the nuclear magnetic resonance body, the probe being configured to: analyzing the character in the environmental state to determine the body posture of the character based on the environmental state data; and under the condition that the body posture is abnormal, the detector sends a control command to the nuclear magnetic resonance body to prompt the nuclear magnetic resonance body to be shut down.

The invention has the following beneficial effects:

(1) The lifting platform is in the first form, and the floor area of the nuclear magnetic resonance equipment can be reduced. When lift platform was in the second form, it can seal the inspection chamber, and at this moment, even there is ironwork to receive the absorption of nuclear magnetic resonance body, it also can't get into in order to cause impact damage to the inner wall in inspection chamber. Even the patient appears and is adsorbed by the nuclear magnetic resonance body together with ironwork, the patient can contact with lift platform, because lift platform is flat-plate-shaped, can reduce the patient and press from both sides between nuclear magnetic resonance body and ironwork and the risk degree that can't take off. The application of lifting platform can be in with the perpendicular to the ground state, when the patient need lie flat on lifting platform, the patient can stand in lifting platform's right side, and at this moment, medical personnel or family members can stand in patient's rear side when assisting the patient. Compared with the prior art, medical staff or family members need to stand on the left side and the right side of the lifting platform, the nuclear magnetic resonance detection system can work normally only by occupying a smaller area. Therefore, the nuclear magnetic resonance detection system has the advantages of small floor area, convenience for lying of a patient, capability of avoiding impact damage caused by ironwork and high use safety degree.

(2) This application is in whole use, and need not medical personnel to carry out manual operation to the head cover portion, and then can reduce medical personnel's work load to can reduce the preparation time that detects the required expense.

(3) This application can improve patient's fixed degree when using, avoids the patient to produce and removes by a wide margin and influence the testing result.

(4) In the whole using process, air or oxygen does not need to be injected into the hollow cavity through an oxygen supply machine which needs to consume electric energy in the prior art, and therefore the using cost of the oxygen supply machine is lower.

Drawings

FIG. 1 is a schematic diagram of the overall configuration of a preferred nuclear magnetic resonance detection system in a first configuration according to the present invention;

FIG. 2 is a schematic diagram of the overall configuration of a preferred NMR detection system according to the invention in a second form;

FIG. 3 is a schematic view of a first sliding groove;

FIG. 4 is a schematic view of the connection between the receiving plate and the first bed plate;

FIG. 5 is a schematic diagram of the overall structure of another preferred NMR detection system according to the invention;

FIG. 6 is a schematic view of the arrangement of the first support and the second support;

FIG. 7 is a schematic view of the arrangement of the connecting rods;

FIG. 8 is a schematic diagram of the overall configuration of another preferred NMR detection system;

reference numbers: 1-nuclear magnetic resonance body, 2-lifting platform, 3-examination cavity, 2 a-first bed board, 2 b-second bed board, 4-first end part, 5-second end part, 6-first sliding part, 7-second sliding part, 8-third end part, 9-fourth end part, 10-second track, 11-first track, 12-sliding rail, 13-fixing board, 14-through hole, 15-first sliding groove, 16-rotating shaft, 17-driving part, 18-flexible connecting rope, 19-bearing board, 20-placing groove, 21-roller, 22-guiding groove, 23-clamping protrusion, 24-first support body, 25-second support body, 26-second sliding groove, 27-third sliding groove, 28-connecting rod, 29-head part, 30-head cover part, 31-hip support part, 32-fourth sliding groove, 33-fifth sliding groove, 34-hollow cavity, 35-first compression spring, 36-first inflatable air bag, 36 a-first inflatable port, 36-37-inflatable port, 38-second inflatable port, 39-40-second inflatable channel, 39-40-fourth inflatable channel, 18-second detector, and exhaust port.

Detailed Description

The technical solution of the present invention is further described in detail below with reference to the following detailed description and the accompanying drawings:

example 1:

as shown in fig. 1 to 4, the present application provides a nuclear magnetic resonance detection system, which at least includes a nuclear magnetic resonance body 1 and a lifting platform 2. The nuclear magnetic resonance body 1 has a hollow examination chamber 3. The shape of the cross-section of the examination cavity 3 may be circular. When a patient is placed in the examination cavity 3, the nuclear magnetic resonance body 1 can perform imaging processing on a detection part of the patient, so that an image of the internal structure of the patient is obtained. The lifting platform 2 is used to provide support for the patient during the patient examination, i.e. the patient may lie flat on the lifting platform 2.

Preferably, the lifting platform 2 comprises at least a first bedplate 2a and a second bedplate 2b. The first end 4 of the first deck 2a can be hinged to the second end 5 of the second deck 2b. Through the mode of articulated for first bed board 2a can rotate around its pin joint. As shown in fig. 1, the first bed plate 2a and the second bed plate 2b are in a second configuration parallel to each other. The whole price platform 2 is now approximately vertical to the ground. As shown in fig. 2, the first deck 2a can be substantially perpendicular to the second deck 2b to be in a first configuration, and the first deck 2a is substantially parallel to the ground so that a patient can lie flat on the first deck 2 a.

Preferably, the lifting platform 2 further comprises a first sliding portion 6 and a second sliding portion 7. The first sliding portion 6 is provided at the third end 8 of the first bed plate 2 a. The second sliding portion 7 is provided on the fourth end portion 9 of the second bed plate 2b. The second sliding portion 7 can be a roller. The second sliding part 7 can always be in contact with the ground, thereby enabling the second sliding part to slide along the second trajectory 10. When the first bed plate 2a rotates with respect to the second bed plate 2b, the first sliding portion 6 can slide along the first trajectory 11. Both the second trajectory 10 and the first trajectory 11 may be linear. The respective extending directions of the second tracks 10 and the first tracks 11 can be substantially perpendicular. For example, the extending direction of the second trajectory 10 may be substantially perpendicular to the ground, and the extending direction of the first trajectory 11 may be substantially parallel to the ground. Specifically, the nmr detection system of the present application further includes a slide rail 12 and a fixing plate 13. The fixing plate 13 is capable of abutting contact with the nuclear magnetic resonance body 1. The fixing plate 13 is provided with a circular through hole 14 corresponding to the examination chamber 3. That is, as shown in fig. 1, the nuclear magnetic resonance body 1 is located on the left side of the fixed plate 13. The lifting platform 2 is located to the right of the fixed plate 13. A patient positioned on the lifting platform 2 can be introduced into the examination chamber 3 through the through-opening 14. The fixed plate 13 is provided with at least one first sliding groove 15. The first sliding portion 6 is nestably disposed in the first sliding groove 15. The first sliding portion 6 can always be located in the first sliding groove 15 so that the first sliding portion 6 can slide in the extending direction of the first sliding groove 15. The slide rail 12 is disposed on the ground or floor. The direction of extension of the slide rail 12 can be substantially parallel to the axial direction of the examination chamber 3. The second sliding part 7 can be nested in the sliding rail 12. The second sliding part 7 can always be located in the slide rail 12, so that the second sliding part 7 can slide along the extending direction of the slide rail 12. The top of the fixed plate 13 is provided with a driving part 17 with a rotating shaft 16. The rotary shaft 16 can be connected to the first slider 6 via a flexible connection cord 18. When the driving part 17 is operated, the rotating shaft 16 can rotate around its own central axis, so that the flexible connecting rope 18 can be wound on the rotating shaft 16. The flexible connection cord 18 can apply a tensile force to the first sliding portion 6 during the winding of the flexible connection cord around the rotary shaft 16, thereby causing the first sliding portion 6 to slide in the extending direction of the first sliding groove 15. Through the operation of the driving part 17, the lifting platform 2 can be converted from the second form to the first form, as shown in fig. 2, the specific process is as follows: the driving part 17 works to make the rotating shaft 16 rotate, so that the flexible connecting rope 18 is wound on the rotating shaft 16, at this time, when the first end 4 of the first bed board 2a moves upwards, the first bed board 2a can rotate around the second end 5, so as to pull the second bed board 2b to move leftwards, and finally, the included angle α between the first bed board 2a and the second bed board 2b is increased. That is, as shown in fig. 2, in the second form, the angle α is 90 °. As shown in fig. 1, in the first configuration, the included angle α is 180 °. The switching from the second configuration to the first configuration is accomplished by the continued operation of the driving portion 17 such that the included angle α is substantially equal to 180 °. Similarly, the driving unit 17 rotates the rotating shaft 16 to switch the lifting platform from the first mode to the second mode. Among the prior art, lift platform 2 can go up and down to place in lift platform 2 with the purpose that changes its terrain clearance for the convenient patient that is inconvenient with legs and feet such as old person, its specific process does, the terrain clearance of adjustment lift platform 2, make lift platform 2's up end and patient's buttock height be close, the patient just can sit on lift platform 2 this moment, lift both legs afterwards and rotatory 90 back, can also place both legs on lift platform 2, adjust lift platform 2's height afterwards again, make lift platform 2's up end and inspection chamber 3's alignment so that send the patient into in inspection chamber 3. In the above-described system, there are problems as follows: 1. when the lifting platform 2 is not used, the lifting platform cannot be retracted, so that the whole nuclear magnetic resonance equipment occupies a larger area. 2. Even if the nuclear magnetic resonance apparatus is not in a completely power-off state when not in use, the nuclear magnetic resonance main body 1 generates a strong magnetic field. When the examination cavity 3 is in an open state, the magnetic field has a strong adsorption force on, for example, ferrous products, which easily causes medical accidents, and on the other hand, the ferrous products enter the examination cavity 3 and then repeatedly collide with the inner wall of the examination cavity 3, thereby easily causing damage to the nuclear magnetic resonance body 1. For example, one procedure of a medical accident that actually occurs is: when the family members of the patient carry the oxygen cylinder to enter the nuclear magnetic resonance detection chamber, the oxygen cylinder is adsorbed by the nuclear magnetic resonance body 1, and the family members of the patient are brought into the examination cavity 3 together, so that the patient is clamped at the examination cavity 3, and finally the family members of the patient die. Therefore, the application can at least achieve the following technical effects: first, as shown in fig. 1, the lift platform 2 of the present invention is in the first configuration, and can reduce the footprint of the nuclear magnetic resonance apparatus. Both, when lift platform 2 is in the second form, it can be with inspection chamber 3 seal, and at this moment, even there is the ironwork to receive the absorption of nuclear magnetic resonance body 1, it also can't get into inspection chamber 3 in order to cause impact damage to the inner wall of inspection chamber 3. Three, even the patient appears and is adsorbed by nuclear magnetic resonance body 1 together with ironwork the condition, the patient can contact with lift platform 2, because lift platform 2 is flat-plate-like, can reduce the patient and press from both sides between nuclear magnetic resonance body 1 and ironwork and the risk degree that can't take off.

Preferably, a receiving plate 19 is further slidably provided on the first bed plate 2 a. Specifically, the first bed plate 2a is provided with a placement groove 20. The placing groove 20 is provided with a roller 21 on the bottom. When the receiving plate 19 is disposed in the placement groove 20, the roller 21 can support the receiving plate 19. The sliding of the receiving catch 19 in the direction of extension of the receiving groove 20 is achieved by the rotation of the roller 21. The standing groove 20 may be provided at a side wall thereof with a guide groove 22. The bearing plate 19 can be provided with a clamping projection 23 which can be nested in the guide groove 22. As shown in fig. 34, the catching protrusion 23 is received in the guide groove 22, so that the receiving plate 19 is prevented from moving upward, and the receiving plate 19 is prevented from falling off the placing groove 20 during use. It is understood that the active sliding of the receiving button 19 can be realized by conventional driving means, such as pneumatic, electric, mechanical transmission, hydraulic driving, etc. For example, a push rod motor may be provided in the placement groove 20, and the sliding of the receiving plate may be achieved by the extension or contraction of the push rod motor.

Preferably, in case the nuclear magnetic resonance detection system is provided with a probe 41 for acquiring environmental state data, the nuclear magnetic resonance detection system is configured to: determining the real-time distance between the moving object and the nuclear magnetic resonance body 1 based on the environmental state data; in case the real-time distance is continuously reduced, the lifting platform 2 is configured to switch from the first configuration to the second configuration such that the examination cavity 3 can be substantially closed by the lifting platform 2. The detector 41 may be an infrared detector capable of detecting the moving object and measuring the real-time distance between the moving object and the nmr body 1 in real time. The detector 41 may be an image collector, and further, the real-time distance between the moving object and the nuclear magnetic resonance main body 1 can be determined by the image. Through last mode of setting up, can seal inspection chamber 3 through lift platform 2 when detecting that there is the object to be close to nuclear magnetic resonance body 1, avoid removing the object and inhaled in inspection chamber 3.

Preferably, in the case that the real-time distance is continuously reduced, determining a first time period consumed for reducing the real-time distance to zero; when the second time length consumed for switching the lifting platform 2 from the first form to the second form is longer than the first time length, the second time length is adjusted, so that the second time length is shorter than the first time length. Through the mode, the lifting platform 2 can complete the sealing of the inspection cavity 3 before the moving object reaches the nuclear magnetic resonance body 1, and then the moving object can be prevented from being sucked into the inspection cavity 3.

Preferably, the lifting platform 2 is provided with a first support 24 and a second support 5, and the first support 24 and the second support 25 can provide support for the user to assist the user to stand when the lifting platform 2 is in the first configuration and the user is in abutting contact with the lifting platform 2 in a standing manner.

Example 2

As shown in fig. 5 to 7, the lifting platform 2 is provided with a first support 24 and a second support 25, and the first support 24 and the second support 25 can provide support for the user to assist the user to stand when the lifting platform 2 is in the first configuration and the user is in abutting contact with the lifting platform 2 in a standing manner. Specifically, the first support body 24 and the second support body 25 are both disposed on the receiving plate 19. The first support 24 is intended to be placed under the left axilla of the patient. The second support 24 can be placed under the right axilla of the patient. The first support 24 and the second support 25 can support the patient when the patient is in a standing posture. The first support body 24 and the second support body 25 are each slidable along the receiving plate 19. Specifically, the receiving plate 19 is provided with a second sliding groove 26 and a third sliding groove 27 which are substantially parallel to each other. The first support 24 is disposed in the second sliding groove 26. The second support 25 is disposed in the third slide groove 27. The first support 24 slides along the second sliding groove 26. The second support body 25 is slidable along the third slide groove 27. The first and

second supports

24 and 25 may be connected by a link 28 so that the first and

second supports

24 and 25 can be moved in synchronization. The movement of the first support 24 and the second support 25 can be achieved by conventional driving means in the prior art, such as mechanical transmission, electric, pneumatic, hydraulic driving, etc. For example, a telescopic motor may be provided on the adaptor plate 19, the telescopic motor being connected to the link 28. The extension or the shortening of the telescopic motor can drive the first supporting body and the second supporting body to move synchronously.

For ease of understanding, the operation principle of the nuclear magnetic resonance detection system of the present embodiment will be described.

As shown in fig. 5, the elevating platform 2 is in a first configuration (i.e. substantially perpendicular to the ground) before use. The patient to be examined can now stand on the right side of the lifting platform 2 with the face facing to the right and the back facing to the left. The medical personnel adjust the position of the first support 24 and the second support 25 so that the first support 24 is located in the left underarm of the patient and the second support 25 is located in the right underarm of the patient. The patient then leans to the left so that his back rests against the bearing plate 19. Subsequently, the medical staff may slightly move the first and

second supports

24 and 25 upward to enable the patient to be supported by the first and second supports. The medical staff adjusts the working state of the driving part 17, so that the third end part 8 of the first bed board 2a moves downwards. With the continuous operation of the driving part 17, the elevating platform 2 is switched from the first state to the second state (i.e., the state substantially parallel to the ground). At this point, the patient lies flat on the bearing plate 19. Finally, the patient lying down can be inserted into the examination chamber 3 by the medical staff moving the receiving plate 19. It will be appreciated that in order to reduce the supporting force exerted by the first support 24 and the second support 25 on the patient's armpit, a foot rest for placing the patient's foot may be provided at the bottom of the receiving plate 19, i.e. the patient can stand on the foot rest. Further, the foot rest can reduce the discomfort caused by the patient being supported only by the first support 24 and the second support 25 when the patient is in a completely suspended state. In the prior art, the lifting platform 2 is always in a state of being substantially parallel to the ground, so that a patient can stand on the lifting platform 2 only at the left and right sides in the width direction and can lie on the lifting platform 2. Meanwhile, when the patient is physically weak or ill, the medical staff or family members often need to assist the patient to be able to lie down on the lifting platform 2. In the assisting process, medical staff or family members can only stand on the left and right sides of the lifting platform 2 in the width direction. And further increases the occupied area of the whole nuclear magnetic resonance detection equipment. The most direct result is that a larger room is required to achieve proper operation of the nmr detection apparatus. As shown in fig. 5, the lifting platform 2 of the present application can be in a state perpendicular to the ground, when the patient needs to lie flat on the lifting platform, the patient can stand on the right side of the lifting platform 2, and at this time, medical staff or family members can stand on the rear side of the patient when assisting the patient. Compared with the prior art, medical staff or family members need to stand on the left side and the right side of the lifting platform, the nuclear magnetic resonance detection system can work normally only by occupying a smaller area.

Example 3

As shown in fig. 8, the nmr detection system of the present application further includes a head rest portion 29, a head covering portion 30, and a hip support portion 31. Both the headrest portion 29 and the hip support portion 31 may be slidably disposed on the receiving plate 19 such that both the headrest portion 29 and the hip support portion 31 are slidable along the second trajectory 10 when the elevating platform 2 is in the first configuration. Specifically, the receiving plate 19 is provided with a fourth sliding groove 32 and a fifth sliding groove 33. The headrest portion 29 is nested in the fourth slide groove 32, so that the headrest portion 29 can slide in the extending direction of the fourth slide groove 32. The buttocks supporting portion 31 is nested in the fifth sliding groove 33, so that the buttocks supporting portion 31 can slide along the extending direction of the fifth sliding groove 33. The headrest portion 29 serves to support the head of the patient. The buttocks support portion 31 is for supporting the buttocks of the patient. The head cover portion 30 is provided on the receiving plate 19. The head housing portion 30 has a hollow cavity 34. When the headrest portion 29 slides along the second trajectory 10, the head of the patient can enter the hollow cavity 34. The head of the patient can be fixed or the noise can be isolated by the head cover portion 34.

Preferably, a first compression spring 35 is provided in the third slide groove 27. The first compression spring 35 can be connected to the first support 24 or the second support 25. When the first support body 24 moves so that the distance between it and the hood part 30 increases, the first compression spring 35 can accumulate elastic potential energy. And/or the first compression spring 35 can accumulate elastic potential energy when the second support body 24 moves such that the distance between it and the head housing part 30 increases. When the lifting platform 2 is in the second configuration, the patient can apply downward force to the first support 24 and the second support 25, and the first compression spring 35 is compressed, at this time, the compression degree of the first compression spring 35 is maximum. In the process that the lifting platform 2 is converted from the second form to the first form, the external force applied to the first compression spring 35 by the patient is gradually reduced, and then the elastic potential energy of the first compression spring 35 is gradually released, so that the first support body and the second support body can move along the third sliding groove 27. Eventually, the headrest portion 29 can slide towards the head-mask portion 30, so that the patient's head can automatically enter the hollow cavity 34. In the prior art, a head cover part 30 is usually disposed on the lifting platform 2 to protect the head of the patient during the nuclear magnetic resonance detection. It is usually to be and to turn over a form, and when using, after the patient lay flat on lift platform, medical personnel need manual book head cover portion of turning over in order to cover patient's head, and the patient could begin to carry out the nuclear magnetic resonance and detect this moment. When the nuclear magnetic resonance detection is finished, the medical staff is required to manually operate to open the head cover part, and the patient can leave the lifting platform at the moment. The medical staff manually completes the opening and closing of the head cover portion, which may result in an increase in detection time and may increase the workload of the medical staff. This application is when using, through the energy storage of the gravity of patient self in order to realize first compression spring 35, simultaneously, converts the in-process of first form into by the second form as lift platform 2, and the elastic potential energy of first compression spring 35 can be released, and then makes in the automatic hollow die cavity 34 that gets into of patient's head. And during the transition of the elevating platform 2 from the first configuration to the second configuration, the head rest portion 29 can slide so that the distance between it and the head covering portion 30 is increased, thereby enabling the head of the patient to be automatically moved out of the hollow cavity 34. That is, this application is in whole use, and need not medical personnel to carry out manual operation to the head cover portion, and then can reduce medical personnel's work load to can reduce the preparation time that detects the required expense.

Preferably, the third sliding groove 27 is further provided with a first inflatable air bag 36. The first inflatable air bag 36 has an inflation port 36a and an exhaust port 36b. The inflation port 36a and the exhaust port 36b may each be provided with a one-way valve so that the inflation port 36a and the exhaust port 36b can be opened or closed at different times. For example, the check valve may be a diaphragm type check valve that may automatically open or close based on a pressure difference across it. When the first inflatable air bag 36 is pressed, the internal pressure thereof increases, and at this time, the exhaust port 36a opens and the inflation port 36a closes. When the first inflatable air bag 36 is restored to its original shape based on its own elasticity, its internal pressure is reduced, at which time the exhaust port is closed and the inflation port is opened. The first inflatable air bag 36 and the first compression spring 35 are respectively located on both sides of the first support body 24, or the two are respectively located on both sides of the second support body 25. For example, the first inflatable bladder may be positioned to the left of the first support or the second support and the first compression spring may be positioned to the right of the first support or the second support. When the lifting platform 2 is in the first configuration, the first compression spring 35 can be in a naturally extended state. That is, the elastic potential energy of the first compression spring 35 at this time is substantially zero. In the prior art, there are mobile nmr apparatuses, i.e. the nmr apparatuses are installed in an ambulance, so that the detection can be performed in different areas. In the driving process of the ambulance, the ambulance can have sudden acceleration or sudden deceleration in the starting process, and at the moment, the patient can move forwards or backwards after lying on the lifting platform 2. However, when performing nuclear magnetic resonance detection, the time duration is usually 10-15min, and the patient needs to keep the position fixed during the detection process to avoid the detection result from generating artifacts. In use, the first compression spring 35 and the first inflatable air bag 36 can serve the purpose of cushioning. Specifically, as shown in fig. 8, when the ambulance is suddenly decelerated, the first compression spring 35 is compressed to absorb a part of the impact, thereby reducing the distance the patient moves to the right. When the ambulance is suddenly accelerated, the first compression spring 35 is extended to absorb a part of the impact, and the first inflatable air bag 36 is compressed to be deformed to absorb a part of the impact, so that the distance to be moved to the left by the patient can be reduced. That is, this application when using, can improve patient's fixed degree, avoids the patient to produce and moves by a wide margin and influence the testing result.

Preferably, the head housing part 30 has a through hole 37. The hollow cavity 33 can communicate with the atmosphere via the through hole 37. The headrest portion 29 is provided with a second inflatable airbag 38. In the case of inflation of the second inflatable bladder 38, the shape of the second inflatable bladder 38 can match the shape of the through-hole 37, so that the second inflatable bladder 38 can be nestingly disposed in the through-hole 37 to seal the hollow cavity 34. For example, the shape of the through-hole 37 can be circular. The second inflatable bladder 38 can be annular in shape. The second inflatable bladder 38 can be placed around the neck of the patient, and when the head of the patient is placed in the hollow cavity 34, the outer wall of the second inflatable bladder 38 can be in contact with the inner wall of the through hole 37, and the hollow cavity 34 can be in a substantially sealed state. The first inflatable airbag 36 can communicate with the second inflatable airbag 38 through the exhaust port 36b. During the process of transforming the elevating platform 2 from the first configuration to the second configuration, the first inflatable air bag 36 is compressed to make the gas inside enter the second inflatable air bag 38, and finally the second inflatable air bag 38 is in an expanded state. The second inflatable bladder 38 is provided with a plurality of vent passages 39. A diaphragm type one-way valve is arranged in the vent passage 39, so that when the pressure in the second inflatable air bag 38 is larger than a set threshold value, the vent passage 39 can be opened to enable the gas inside the second inflatable air bag 38 to enter the hollow cavity 34. Among the prior art, can produce great noise among the nuclear magnetic resonance testing process, in order to avoid the interference to the patient, can solve through the mode of wearing the ear muff for the patient. However, wearing the earmuffs for the patient requires separate operation by the healthcare worker, which increases the workload of the healthcare worker and increases the detection time. This application can put into cavity die cavity 34 with patient's head whole through setting up head cover portion 30, and the second aerifys 38 and can increase the syllable-dividing effect of cavity die cavity after the inflation simultaneously to can reach the technological effect that the reinforcing gives sound insulation effect and reduce medical personnel intensity of labour. In addition, common causes of seizures may include hypoxia. When the head of a patient is placed in the hollow cavity 34, the hollow cavity 34 has good sealing performance, so that the patient with a history of epileptic seizure is easy to induce epileptic seizure when detecting epileptic seizure, and therefore, the air in the second inflatable air bag 38 can be injected into the hollow cavity through the air exhaust channel 29, and the probability of epileptic seizure of the patient can be further reduced. Meanwhile, when the ambulance accelerates during driving, the first inflatable air bag 36 will be pressed by the first support body 24 and the second support body 25, so that the gas in the first inflatable air bag 36 enters the second inflatable air bag 38 and then enters the hollow cavity through the exhaust passage 39. That is, during the whole using process, air or oxygen does not need to be injected into the hollow cavity 34 through an oxygen supply machine which needs to consume electric energy in the prior art, so that the using cost of the device is lower.

Example 4

Preferably, the nuclear magnetic resonance detection system further includes a metal detector 42. The metal detector 42 is coupled to the nuclear magnetic resonance body 1. The metal detector 42 is configured to: before the nuclear magnetic resonance body 1 is started, scanning and detecting a space within a set range around the nuclear magnetic resonance body 1, wherein under the condition that a ferromagnetic article is not detected in the space, a control command is sent to the nuclear magnetic resonance body 1 to prompt the nuclear magnetic resonance body 1 to be started. For example, the nmr body 1 may be placed in a detection chamber, the metal detector 42 may also be disposed in the detection chamber, the metal detector 42 detects the detection chamber before the nmr body 1 is started, and when the ferromagnetic object is not detected in the detection chamber, the nmr body 1 is started. By the above method, the ferromagnetic object can be further prevented from entering the nuclear magnetic resonance body 1 to damage the nuclear magnetic resonance body 1.

Preferably, the probe 41 is coupled to the nuclear magnetic resonance body 1, the probe 41 being configured to: analyzing the character in the environmental state to determine the body posture of the character based on the environmental state data; in the case where there is an abnormality in the posture of the body, the probe 41 sends a control command to the nuclear magnetic resonance body 1 to cause the nuclear magnetic resonance body 1 to be shut down. The detector 41 may have a body posture library, the body posture library may store image data of abnormal postures and normal postures, and the detector 41 may determine whether the body posture is normal or abnormal by extracting the person image in the environmental state data and comparing the person image with the body posture library. For example, abnormal postures may include, but are not limited to, excessive body lean, head landing, foot liftoff, and the like.

It should be noted that the above-mentioned embodiments are exemplary, and that those skilled in the art, having benefit of the present disclosure, may devise various arrangements that are within the scope of the present disclosure and that fall within the scope of the invention. It should be understood by those skilled in the art that the present specification and figures are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims

1. Nuclear magnetic resonance detection system, comprising at least a nuclear magnetic resonance body (1) with an examination chamber (3), and a lifting platform (2), characterized in that, in the case where it is provided with a probe (41) for acquiring environmental status data, it is configured to:

determining a real-time distance of the moving object from the nuclear magnetic resonance body (1) based on the environmental status data;

in case of a continuous decrease of the real-time distance, the lifting platform (2) is configured to be switched from a first configuration, in which the lifting platform (2) is substantially perpendicular to the ground, to a second configuration, in which the lifting platform (2) is substantially parallel to the ground, such that the examination cavity (3) can be substantially enclosed by the lifting platform (2).

2. The nuclear magnetic resonance detection system of claim 1, further configured to:

under the condition that the real-time distance is continuously reduced, determining a first time length consumed for reducing the real-time distance to zero;

and under the condition that the second time length consumed for switching the lifting platform (2) from the first form to the second form is longer than the first time length, adjusting the second time length to ensure that the second time length is shorter than the first time length.

3. Nuclear magnetic resonance detection system according to claim 1, characterized in that a first support (24) and a second support (25) are provided on said lifting platform (2), said first support (24) and said second support (25) being able to provide support to the user to assist the user in standing, with said lifting platform (2) in said first configuration and with the user in abutting contact to said lifting platform (2) in a standing manner.

4. The nmr detection system according to claim 2 or 3, wherein the lifting platform (2) is provided with a headrest portion (29) for supporting the head of the patient, a hood portion (30) having a hollow cavity (34), a support portion (40) for supporting the patient, a first compression spring (35), the support portion (40) being couplable with the first compression spring (35) such that when the lifting platform (2) is in the second configuration, the first compression spring (35) accumulates elastic potential energy based on an external force exerted on the support portion (40), and during switching of the lifting platform (2) from the second configuration to the first configuration, the external force is gradually reduced such that the elastic potential energy is released, wherein the released elastic potential energy acts on the patient via the support portion (40) such that the head of the patient enters the hollow cavity (34).

5. Nuclear magnetic resonance detection system according to claim 4, characterized in that a first inflatable bladder (36) coupled to the support (40) is provided on the lifting platform (2), the first inflatable bladder (36) being capable of reducing its volume and the first compression spring (35) being capable of being stretched in case the support (40) is impacted by an external force.

6. Nuclear magnetic resonance detection system according to claim 5, wherein a second inflatable bladder (38) is provided on the headrest portion (29) and adapted to be wrapped around the neck of the patient, wherein the headrest portion (30) is provided with a through hole (37), wherein the first inflatable bladder (25) is in one-way communication with the second inflatable bladder (38), wherein the support portion (40) is adapted to press the first inflatable bladder (36) such that the gas in the first inflatable bladder (36) enters the second inflatable bladder (38) and the second inflatable bladder (38) is adapted to expand into abutting contact with the inner wall of the through hole (37) when the lift platform (2) is switched from the second configuration to the first configuration such that the head of the patient enters the hollow cavity (34) through the through hole (37).

7. Nuclear magnetic resonance detection system according to claim 6, characterized in that the second inflatable bladder (38) is provided with a plurality of vent channels (39), and when the internal pressure of the second inflatable bladder (38) is higher than a set threshold value, the vent channels (39) can be opened to allow the gas in the second inflatable bladder (38) to enter the hollow cavity (34).

8. The nuclear magnetic resonance detection system according to claim 1, characterized in that the lifting platform (2) comprises at least a first bedplate (2 a), a second bedplate (2 b), sliding rails (12) and a fixed plate (13), the first end (4) of the first bedplate (2 a) being hinged to the second end (5) of the second bedplate (2 b), the lifting platform (2) being in the first configuration when the angle α between the first bedplate (2 a) and the second bedplate (2 b) is substantially equal to 90 °, the lifting platform (2) being in the second configuration when the angle α is substantially equal to 180 °, the first end (4) being provided with a first slider (6), the second end (5) being provided with a second slider (7), the first slider (6) being slidably connected to the fixed plate (13) so that the first slider (6) can slide along a first trajectory (11), the second slider (7) being slidably connected to the sliding rails (12) so that the second slider (7) can slide along a second trajectory (10), the second slider (10) being substantially perpendicular to the second trajectory (10).

9. The nuclear magnetic resonance detection system of claim 1, further comprising a metal detector (42), the metal detector (42) coupled to the nuclear magnetic resonance body (1), the metal detector (42) configured to:

before the nuclear magnetic resonance body (1) is started, scanning and detecting a space in a set range around the nuclear magnetic resonance body (1), wherein under the condition that a ferromagnetic article is not detected in the space, a control command is sent to the nuclear magnetic resonance body (1) to prompt the nuclear magnetic resonance body (1) to be started.

10. The nuclear magnetic resonance detection system of claim 1, wherein the probe (41) is coupled to the nuclear magnetic resonance body (1), the probe (41) being configured to:

analyzing the character in the environmental state to determine the body posture of the character based on the environmental state data;

in the case of an abnormality in the body posture, the probe (41) sends a control command to the nuclear magnetic resonance body (1) to prompt the nuclear magnetic resonance body (1) to shut down.