A magnetic resonance radio frequency coil assembly and a magnetic resonance device

Abstract

The present invention relates to a magnetic resonance radio frequency coil assembly, comprising: a coil body, a fixing airbag and a connecting pipe. The fixing airbag is sleeved on the coil body. One end of the connecting pipe is arranged inside the coil body and communicated with the fixing airbag. The other end of the connecting pipe is located outside the coil body and has an interface, and the interface is used for connecting with an inflation device. The present invention provides a magnetic resonance radio frequency coil assembly which is connected with the inflation device through the interface, is convenient to replace, and can realize automatic inflation. The present invention also provides a magnetic resonance device, wherein the inflation device is located inside the housing, so as to realize inflation of the airbag without opening the shielding door, thereby reducing the number of times of opening the shielding door and avoiding affecting the working environment of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of life science instruments, and particularly to a magnetic resonance radio frequency coil assembly and a magnetic resonance device. Background Art

[0002] In current animal magnetic resonance systems, in order to adapt to different types of animal body shapes, the radio frequency coils are assembled in a flexible manner. Among them, the volume coils basically achieve fixation by inflating air bags inside the gradient coils. However, due to problems with the air bags themselves, air leakage inevitably occurs during long-term use.

[0003] In the existing system, each radio frequency coil is equipped with a manual air pump. The air bag is inflated manually by an operator and supplemented with air during the experiment. The manual air pump is connected to the radio frequency coil through a pipeline. The pipeline of the air pump is exposed outside, which is easy to entangle and damage, and the cost is high. When manually supplementing air during the experiment, the operator needs to enter the scanning room and open the magnetic resonance shielding door. The operation is complex, and repeatedly opening and closing the shielding door may affect the electromagnetic shielding effect, thereby affecting the imaging of the magnetic resonance device. Summary of the Invention

[0004] The present invention aims at the problems existing in the prior art, and provides a magnetic resonance radio frequency coil assembly and a magnetic resonance device.

[0005] The technical solution adopted by the present invention is as follows: A magnetic resonance radio frequency coil assembly includes:

[0006] A coil body, a fixed air bag, and a connecting pipe. The fixed air bag is sleeved on the coil body. One end of the connecting pipe is arranged inside the coil body and communicated with the fixed air bag. The other end of the connecting pipe is located outside the coil body and has an interface for connecting to an inflation device.

[0007] In some embodiments, the connecting pipe is integrated on the coil body.

[0008] In some embodiments, the fixed air bag is arranged at one end or both ends of the coil body.

[0009] In some embodiments, the fixed air bags are arranged at both ends of the coil body. The connecting pipe includes a main pipeline and branch pipelines, and the branch pipelines are respectively connected to the fixed air bags at both ends.

[0010] In some embodiments, the main pipeline is a rigid pipe.

[0011] In some embodiments, the coil body is a volume coil.

[0012] In some embodiments, a magnetic resonance device is further provided, including the magnetic resonance radio frequency coil assembly and the inflation device as described above, which is used to communicate with the fixed airbag and inflate the fixed airbag.

[0013] In some embodiments, the magnetic resonance device includes a housing, and the inflation device is arranged inside the housing.

[0014] In some embodiments, the inflation device can be connected to the interface through a quick-connect joint.

[0015] In some embodiments, a magnetic resonance device is further provided, including a magnet for generating a main magnetic field; a gradient coil, which is fixed inside the magnet; a housing, on which a shielding door is arranged, and the magnet is arranged inside the housing; an inflation device, which is arranged inside the housing and is used to connect with a fixed airbag to inflate the fixed airbag; and the fixed airbag is used to fix the coil body of the magnetic resonance radio frequency coil assembly in the inner cavity of the gradient coil.

[0016] In some embodiments of the present invention, a magnetic resonance radio frequency coil assembly is proposed. The inflation pipeline is arranged inside the magnetic resonance radio frequency coil assembly and is connected to the fixed airbag from the bottom direction or the side direction of the fixed airbag, which will not interfere with the expansion or contraction of the fixed airbag. It is connected to the inflation device through an interface, which is convenient to replace and can realize automatic inflation. Some embodiments of the present invention also provide a magnetic resonance device, and the inflation device is arranged inside the housing, so as to realize inflating the airbag without opening the shielding door, thereby reducing the number of times of opening the shielding door and avoiding affecting the working environment of the device.

[0017] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly and implement it according to the content of the description, the following takes the preferred embodiments of the present invention and combines with the drawings to describe in detail as follows. The specific implementation manners of the present invention are given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention, form a part of this application, and the schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0019] Figure 1 Shows a schematic structural diagram of a magnetic resonance device provided by some embodiments of the present invention;

[0020] Figure 2 Shown as Figure 1 an enlarged schematic diagram at the magnetic resonance radio frequency coil assembly in

[0021] Figure 3The figure shows a cross-sectional schematic view of the fixed airbag of the magnetic resonance radiofrequency coil assembly when it is not inflated in an embodiment;

[0022] Figure 4 The figure shows a cross-sectional schematic view of the fixed airbag of the magnetic resonance radiofrequency coil assembly when it is inflated in an embodiment;

[0023] Figure 5 The figure shows a structural schematic view of the inflation device in a magnetic resonance device in an embodiment;

[0024] Figure 6 The figure shows a module connection diagram of a spectrometer in a magnetic resonance device in an embodiment;

[0025] In the figure: 1 - magnetic resonance device, 2 - magnetic resonance radiofrequency coil assembly, 21 - coil body, 211 - embedded groove, 212 - connecting pipe, 22 - fixed airbag, 23 - connecting tube, 231 - interface, 24 - one-way valve, 3 - inflation device, 31 - inflator pump, 32 - air outlet, 33 - air outlet pipe, 34 - quick connector, 35 - electrical interface, 36 - switch, 37 - display and interaction device, 4 - gradient coil, 5 - magnet, 6 - spectrometer, 61 - processing module, 62 - transceiver module. Detailed implementation manners

[0026] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention. The present invention will be described more specifically by way of example in the following paragraphs. The advantages and features of the present invention will be clearer according to the following description and the claims. It should be noted that the accompanying drawings are all in very simplified forms and use non-precise scales, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0027] It should be noted that when a component is referred to as being "mounted on" another component, it can be directly mounted on the other component or there may also be an intermediate component. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component at the same time. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or there may be an intermediate component at the same time.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.

[0029] The magnetic resonance radiofrequency coil assembly provided by the present invention will be introduced below with reference to the accompanying drawings:

[0030] Please refer to Figures 2 - 4 Figures 2 - 4 , a magnetic resonance radio frequency coil assembly 2 provided by some embodiments of the present invention, which includes: a coil body 21, a fixing airbag 22, and a connecting pipe 23. The fixing airbag 22 is sleeved on the coil body 21. One end of the connecting pipe 23 is arranged inside the coil body 21 and communicated with the fixing airbag 22, and the other end of the connecting pipe 23 is located outside the coil body 21 and forms an interface 231. The interface 231 is used for detachably connecting with an inflation device 3. It can be understood that the coil body is the main part of the radio frequency coil assembly 2 and has the function of transmitting radio frequency signals and / or receiving magnetic resonance signals. The fixing airbag 22 can be a rubber inflation ring, which expands when inflated and is used to fix the coil body in the inner cavity of the gradient coil, that is, the scanning cavity of the magnetic resonance device. The connecting pipe 23 forms an inflation pipeline and is arranged on the coil body 21.

[0031] For the magnetic resonance radio frequency coil assembly proposed by some embodiments of the present invention, the connecting pipe is used as the inflation pipeline and is built into the magnetic resonance radio frequency coil assembly, which avoids the collision of the inflation pipeline with other devices and prolongs the service life of the inflation pipeline. In addition, since the inflation pipeline is built into the magnetic resonance radio frequency coil assembly, it can be connected to the fixing airbag 22 from the bottom direction or the side direction of the fixing airbag 22, without interfering with the expansion or contraction of the fixing airbag 22. In addition, the magnetic resonance radio frequency coil assembly has an inflation interface for detachably connecting with an inflation device, which can separate the magnetic resonance radio frequency coil assembly from the inflation device and facilitate the replacement of the radio frequency coil.

[0032] In some embodiments, at least a part of the coil body 21 has a cylindrical shape. In some embodiments, the coil body 21 has a plurality of cylindrical parts. In some embodiments, at least one end of the coil body 21 is cylindrical. Of course, both ends of the coil body 21 can also be cylindrical. In some embodiments, the coil body 21 is entirely cylindrical. In some embodiments, the coil body 21 is a volume coil. Of course, the volume coil can include a coil circuit structure, a cylindrical shell, and other accessories. The fixing airbag 22 is sleeved on the end of the cylindrical shell of the coil body 21. When the fixing airbag 22 expands and contacts the gradient coil, it generates a supporting effect on the coil body 21. In some embodiments, fixing airbags 22 are respectively sleeved at positions near both ends of the coil body 21. When the fixing airbags 22 expand and contact the external device, stable support for the coil body 21 can be achieved. Of course, in some embodiments, when the coil body is relatively small, only one fixing airbag 22 can be provided at one end of the coil body 21. The fixing airbag 22 is arranged at the end of the coil body 21, which can make full use of the space on the axis of the coil body 21, avoid occupying the radial space, and provide more space for the internal circuit structure of the coil body.

[0033] In some embodiments, the coil body 21 is provided with an embedding groove 211 around its circumferential surface, and the fixing airbag 22 is fixed in the embedding groove 211. There are various ways to fix the fixing airbag 22 relative to the embedding groove 211. In some feasible embodiments, the fixing airbag 22 is embedded in the embedding groove 211, and both sides of the fixing airbag 22 are in close contact with the inner wall of the embedding groove 211. The friction force between the fixing airbag 22 and the inner wall of the embedding groove 211 is used to restrict the movement of the fixing airbag 22 relative to the embedding groove 211.

[0034] At least one embedding groove 211 is provided on the coil body 21, and the embedding groove 211 is provided at the end position of the coil body 21. When there is only one embedding groove 211, the fixing airbag 22 is arranged at one end of the coil body 21.

[0035] In some embodiments, embedding grooves 211 are respectively arranged at positions close to both ends of the coil body 21, and the fixing airbags 22 are arranged at both ends of the coil body 21.

[0036] In some embodiments, the connecting pipe 23 includes a main pipeline. In some embodiments, the main pipeline is a straight pipe. In some embodiments, the main pipeline is a rigid pipe. It can be understood that a rigid pipe is a pipeline that does not bend significantly in its natural state, such as a rigid plastic pipe. In some embodiments, the connecting pipe 23 further includes branch pipelines, and the number of branch pipelines is the same as the number of fixing airbags 22. When fixing airbags 22 are arranged at both ends, the branch pipelines are respectively connected to the fixing airbags 22 at both ends, and the main pipeline and the branch pipelines can be integrally formed or connected by other means.

[0037] In some embodiments, the connecting pipe 23 is integrated on the coil body 21, and the magnetic resonance radio frequency coil assembly 2 is used as a whole module. By integrating the connecting pipe 23 on the coil body 21, during use, the connecting pipe 23 and the coil body 21 are non-detachably connected as a whole.

[0038] For the specific integration method, in some embodiments, during use, the connecting pipe 23 can be directly fixed on the coil body 21. Specifically, the connecting pipe 23 runs inside the coil body 21 and is fixedly connected to the coil body 21. For the connection method, it can be snap connection, threaded connection, etc. Of course, in some embodiments, the part of the connecting pipe 23 located inside the coil body 21 can also be integrally formed with the coil body 21, and holes are directly formed on the outer shell of the coil body as the inflation channels.

[0039] In some embodiments, a connecting pipeline 212 communicating with the embedding groove 211 is provided inside the coil body 21, and the branch pipelines are embedded in the connecting pipeline 212.

[0040] In some embodiments, a one-way valve 24 is installed at one end of the connecting pipe 23 that communicates with the fixed airbag 22, and the allowed flow direction of the one-way valve 24 is from the connecting pipe 23 to the fixed airbag 22. Gas can only enter the fixed airbag 22 from the connecting pipe 23, and cannot flow from the fixed airbag 22 to the connecting pipe 23; the one-way valve 24 can effectively prevent the gas in the fixed airbag 22 from leaking.

[0041] In other embodiments, a pressure sensor is installed at the connection between the one-way valve 24 and the fixed airbag 22, and the pressure sensor can detect the air pressure in the fixed airbag 22 and the detected air pressure.

[0042] Some embodiments of the present invention also provide a magnetic resonance device. The magnetic resonance device provided by the present invention will be introduced below with reference to the accompanying drawings:

[0043] Please refer to Figures 1 - 5 , a magnetic resonance device provided by some embodiments of the present invention, which includes: a housing (not shown in the figure), a magnetic resonance radio frequency coil assembly 2, an inflation device 3, a gradient coil 4, and a magnet 5. The magnet 5 is fixed in the housing, the gradient coil 4 is fixed in the magnet 5, and the gradient coil 4 has an inner cavity in the center to form a scanning cavity. The magnetic resonance radio frequency coil assembly 2 can enter the scanning cavity. For different scanning objects or according to different experimental requirements, different magnetic resonance radio frequency coil assemblies 2 can be replaced. The inflation device 3 communicates with the fixed airbag 22 and is located in the housing. Specifically, the magnet 5 is in the shape of a circular column, the magnet 5 is fixed in the housing, and the magnet 5 has a mounting hole for accommodating the gradient coil 4, and the gradient coil 4 is fixed in the mounting hole. There are various ways to fix the gradient coil 4 in the mounting hole. In some other feasible embodiments, the gradient coil 4 is fixed by bolts.

[0044] In some embodiments, the inflation device 3 is connected to the spectrometer 6, and the spectrometer 6 is used to control the inflation device 3 to inflate. Specifically, the housing includes an outer housing main body and a shielding door that can be opened and closed relative to the outer housing main body. When the shielding door is closed relative to the outer housing main body, the internal space of the outer housing main body forms an electromagnetic shield. The inflation device 3 is located inside the shielding door, and the inflation device can be fixed in the internal space of the housing. For example, a fixing frame is provided inside the housing to fix the inflation device 3 on the fixing frame. In one embodiment, the inflation device 3 is fixed inside the shielding door at one end of the magnet. In the use state, the magnetic resonance radio frequency coil assembly 2 is inside the outer housing main body, the inflation device 3 is connected to the magnetic resonance radio frequency coil assembly 2, and the spectrometer controls the inflation device 3 to inflate the fixed airbag 22 of the magnetic resonance radio frequency coil assembly 2. Thus, the airbag can be inflated without opening the shielding door, avoiding the influence of inflation on the working environment of the device.

[0045] Specifically, the structure of the magnetic resonance radio frequency coil assembly 2 has been described in detail in the above embodiments, so it will not be elaborated here.

[0046] In some embodiments, the magnetic resonance device includes a spectrometer 6, which is communicatively connected to the inflation device 3 and is used to control the start and stop of the inflation device 3. It can be understood that the control part of the spectrometer 6 can be arranged outside the shielding door, located in an independent operation room or equipment room. Thus, it is possible to inflate the fixed airbag 22 without opening the shielding door, avoiding the influence of inflation on the working environment of the device.

[0047] The air pressure sensor in the magnetic resonance radio frequency coil assembly 2 is electrically connected to the spectrometer 6. The air pressure sensor can detect the air pressure in the fixed airbag 22 and send the detected air pressure result to the spectrometer 6. The spectrometer 6 can adjust the start and stop of the inflation device 3 according to the air pressure result.

[0048] In some embodiments, the inflation device 3 includes an air pump 31, an air pump drive mechanism, and a communication mechanism. The communication mechanism is communicatively connected to an external control member such as the spectrometer 6, and is electrically connected to the air pressure sensor and the air pump drive mechanism. The air pump drive mechanism is connected to the air pump and can drive the air pump to work. The air pump 31 is connected to the connecting pipe 23. The communication mechanism can receive the detection result of the air pressure sensor and send it to the spectrometer 6, and can receive the control signal of the spectrometer 6 and send it to the air pump drive mechanism. The air pump drive mechanism drives the air pump to work according to the control signal to inflate the fixed airbag 22.

[0049] In some embodiments, the spectrometer 6 and the communication mechanism can communicate either wired or wirelessly. The spectrometer 6 receives the air pressure result sent by the communication mechanism, can generate a control signal according to the air pressure result, and send it to the communication mechanism.

[0050] In some embodiments, please refer to Figure 6 , the spectrometer 6 includes a processing module 61 and a transceiver module 62. The transceiver module 62 is electrically connected to the processing module 61. The transceiver module 62 is communicatively connected to the communication mechanism. The processing module 61 can compare the air pressure result received by the transceiver module 62 with the air pressure preset value, generate a control signal according to the comparison result, and send the control signal to the transceiver module 62. The transceiver module 62 sends the control signal to the communication mechanism.

[0051] In some embodiments, the gradient coil 4 is in a circular column shape. The inner wall of the gradient coil 4 forms an inner cavity for accommodating the magnetic resonance radio frequency coil assembly 2. The magnetic resonance radio frequency coil assembly 2 can be placed in the inner cavity. The fixed airbag 22 has a first state in which it does not contact the inner wall of the gradient coil 4 and a second state in which it is in close contact with the inner wall of the gradient coil 4. The inflation device 3 can inflate the fixed airbag 22 to switch the fixed airbag 22 from the first state to the second state.

[0052] When the fixed airbag 22 is in the first state, there is an active space between the gradient coil 4 and the magnetic resonance radio frequency coil assembly 2, and the magnetic resonance radio frequency coil assembly 2 can move relative to the axis of the gradient coil 4; when the fixed airbag 22 is in the second state, the fixed airbag 22 is in close contact with the inner wall of the gradient coil 4, and the frictional force therebetween restricts the movement of the magnetic resonance radio frequency coil assembly 2 relative to the gradient coil 4.

[0053] In some embodiments, the inflation device 3 includes an air outlet 32 and an air outlet pipe 33. One end of the air outlet pipe 33 is connected to the air outlet 32, and the other end is used to connect to the connecting pipe 23. In some embodiments, the air outlet pipe 33 can be connected to the connecting pipe 23 through a quick connector 34. In some embodiments, the inflation device 3 includes a quick connector 34. In some embodiments, the quick connector 34 is detachably connected to the air outlet pipe 33, and the interface of the quick connector 34 with the connecting pipe 23 is detachably connected. The interface 231 of the connecting pipe 23 is a quick connection interface matching the quick connector 34. In some embodiments, the quick connector 34 is fixedly connected to the air outlet pipe 33 and does not need to be disassembled. During use, it is only necessary to connect the air outlet pipe 33 to the connecting pipe 23 through the quick connector 34, which is convenient to use. For different radio frequency coils, it is only necessary to integrate a connecting pipe 23 on each magnetic resonance radio frequency coil assembly 2, rather than separately configuring an inflation device 3 for each magnetic resonance radio frequency coil assembly.

[0054] In some embodiments, at least a part of the air outlet pipe 33 is a flexible pipe. By providing the flexible pipe, it is convenient to adjust the position of the quick connector 34 to align the position of the quick connector 34 with the quick connection interface. In some embodiments, the end of the air outlet pipe 33 connected to the air outlet 32 is a flexible pipe, or the end of the air outlet pipe 33 connected to the quick connector 34 is a flexible pipe, or the middle part of the air outlet pipe 33 has a bendable structure. It can be understood that the flexible pipe can be a hose that can be bent in a natural state or a pipe that can be deformed after a certain force.

[0055] In some embodiments, the inflation device 3 further includes an electrical interface 35 and a switch 36. The electrical interface 35 can be used to connect to a power supply, a sensor, etc., and the switch 36 is used to manually control the opening and closing of the inflation device 3. In some embodiments, the inflation device 3 further includes a display and interaction device 37. The display and interaction device 37 has a display screen for displaying control parameters such as inflation speed, inflation volume, and air pressure of the fixed airbag 22. The display and interaction device 37 also has interaction keys, which can be physical keys or touch keys provided on the display screen. Through the interaction keys, control parameters can be set, and inflation can be manually started or stopped, etc.

[0056] During use, first insert the magnetic resonance radio frequency coil assembly 2 into the designated position of the gradient coil 4, and connect the inflation device 3 and the fixed airbag 22 through the quick connector 34 to form an inflation path. Then, the inflation device 3 can be directly manually activated through the display interaction device 37. First, the inflation device 3 inflates the fixed airbag 22, causing the fixed airbag 22 to switch from the first state to the second state; then stop inflation and close the shielding door. After the inflation device 3 stops inflation, during use, the gas in the fixed airbag 22 may gradually leak out slowly, causing the fixed airbag 22 to switch from the second state to the first state. In some embodiments, the spectrometer 6 can be used to control the inflation device 3 to replenish gas to the fixed airbag 22, so as to achieve inflation of the fixed airbag 22 without opening the shielding door during use. Specifically, the specific inflation method can be set through the display interaction device 37. Inflation can be carried out at fixed time intervals, or inflation can be carried out by monitoring the air pressure in the fixed airbag 22. When the air pressure in the fixed airbag 22 is lower than a certain threshold, the inflation device 3 is activated.

[0057] Some embodiments of the present invention propose a magnetic resonance radio frequency coil assembly, with the inflation pipeline built inside the magnetic resonance radio frequency coil assembly and connected to the fixed airbag from the bottom direction or side direction of the fixed airbag, without interfering with the expansion or contraction of the fixed airbag; some embodiments of the present invention also provide a magnetic resonance device, with the inflation device located inside the housing, so as to achieve inflation of the airbag without opening the shielding door, thereby reducing the number of times of opening the shielding door and avoiding affecting the working environment of the device.

[0058] In some embodiments, a magnetic resonance device is also provided, including: a magnet 5 for generating a main magnetic field; a gradient coil 4, with the gradient coil 4 fixed inside the magnet 5; a housing, with a shielding door provided on the housing, and the magnet 5 is arranged inside the housing; and an inflation device 3, with the inflation device 3 arranged inside the housing and used to connect to the fixed airbag 22 to inflate the fixed airbag 22; the fixed airbag 22 is used to fix the coil body 21 of the magnetic resonance radio frequency coil assembly in the inner cavity of the gradient coil 4.

[0059] In some embodiments, the structure of the magnetic resonance radio frequency coil assembly 2 can adopt the specific structure in the above embodiments, so it will not be elaborated here.

[0060] In some embodiments, the connecting pipe 23 can also be used to connect to a manual inflator. During use, if the inflation device 3 fails and automatic inflation cannot be completed in time, the connecting pipe 23 can be directly connected to the manual inflator through the quick connector to achieve manual inflation. Of course, it can be understood that manual inflation is an emergency backup solution. During the use of the magnetic resonance device, a malfunction may occur midway and automatic air replenishment is impossible. At this time, manual inflation can be carried out.

[0061] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention; any ordinary technician in the industry can smoothly implement the present invention according to the illustrations in the specification and the above; however, any minor changes, modifications, and equivalent variations made by those skilled in the art within the scope of the technical solution of the present invention by using the technical content disclosed above are equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications, and evolutions made to the above embodiments based on the essential technology of the present invention still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A magnetic resonance device, characterized in that, Comprising: A magnet (5) for generating a main magnetic field; Gradient coils (4) fixed within the magnet (5); A magnetic resonance radio frequency coil assembly, including a coil body (21), a fixed airbag (22), and a connecting pipe (23). The fixed airbag (22) is sleeved on the coil body (21). One end of the connecting pipe (23) is disposed within the coil body (21) and communicates with the fixed airbag (22). The other end of the connecting pipe (23) is located outside the coil body (21) and has an interface (231) for connecting to an inflation device (3); An inflation device (3) for communicating with the fixed airbag (22) and inflating the fixed airbag (22); and A spectrometer (6). The inflation device (3) is communicatively connected to the spectrometer (6). A pressure sensor within the magnetic resonance radio frequency coil assembly is electrically connected to the spectrometer (6). The pressure sensor can detect the air pressure within the fixed airbag (22) and send the detected pressure result to the spectrometer (6). The spectrometer (6) can adjust the start and stop of the inflation device (3) according to the pressure result. The control part of the spectrometer (6) is disposed outside the shielding door; The fixed airbag (22) is used to fix the coil body (21) of the magnetic resonance radio frequency coil assembly within the inner cavity of the gradient coils (4).

2. The magnetic resonance device according to claim 1, characterized in that, The connecting pipe (23) is integrated on the coil body (21).

3. The magnetic resonance device according to claim 1, characterized in that, The fixed airbag (22) is disposed at one end or both ends of the coil body (21).

4. The magnetic resonance device according to claim 3, characterized in that, The fixed airbag (22) is disposed at both ends of the coil body (21). The connecting pipe (23) includes a main pipeline and branch pipelines, and the branch pipelines are respectively connected to the fixed airbags (22) at both ends.

5. The magnetic resonance device according to claim 4, characterized in that, The main pipeline is a rigid pipe.

6. The magnetic resonance apparatus according to claim 1, characterized in that, The coil body (21) is a volume coil.

7. The magnetic resonance device according to claim 1, characterized in that, The magnetic resonance device includes a housing, and the inflation device (3) is disposed within the housing.

8. The magnetic resonance device according to claim 1, characterized in that, The inflation device (3) can be connected to the interface (231) through a quick-connect joint (34).

9. A magnetic resonance device, characterized in that, Comprising: A magnet (5) for generating a main magnetic field; Gradient coils (4) fixed within the magnet (5); A housing provided with a shielding door, and the magnet (5) is disposed within the housing; An inflation device (3) disposed within the housing for connecting to a fixed airbag (22) and inflating the fixed airbag (22). The fixed airbag (22) is used to fix the coil body (21) of the magnetic resonance radio frequency coil assembly within the inner cavity of the gradient coils (4); and A spectrometer (6). The inflation device (3) is communicatively connected to the spectrometer (6). A pressure sensor within the magnetic resonance radio frequency coil assembly is electrically connected to the spectrometer (6). The pressure sensor can detect the air pressure within the fixed airbag (22) and send the detected pressure result to the spectrometer (6). The spectrometer (6) can adjust the start and stop of the inflation device (3) according to the pressure result. The control part of the spectrometer (6) is disposed outside the shielding door.

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