CN111060859B

CN111060859B - Magnetic resonance system

Info

Publication number: CN111060859B
Application number: CN201911377006.XA
Authority: CN
Inventors: 关晓磊; 刘子盟; 陈青昌
Original assignee: Shanghai United Imaging Healthcare Co Ltd
Current assignee: Shanghai United Imaging Healthcare Co Ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2021-07-16
Anticipated expiration: 2039-12-27
Also published as: CN111060859A

Abstract

The present application relates to a magnetic resonance system. The magnetic resonance system comprises a bed frame, a wireless charging emitter, a photoelectric converter, a bed board and a driving device. The bed frame is used for being arranged in the outer space of the magnetic resonance aperture. The wireless charging emitter is arranged on the bedstead. The photoelectric converter is arranged on the bed board. The driving device is in transmission connection with the bed board. The driving device is used for driving the bed board to move to a target position relative to the bed frame so as to enable the wireless charging emitter to be aligned with the photoelectric converter. The wireless charging emitter wirelessly charges for the photoelectric converter. The wireless charging transmitter in the magnetic resonance system is arranged in the outer space of the magnetic resonance aperture to wirelessly charge the photoelectric converter. The magnetic resonance system avoids the charging and power supply of the photoelectric converter and the receiving coil in the magnetic resonance aperture through an electric cable, thereby reducing the influence of the cable on the uniformity of a transmitting electromagnetic field in the magnetic resonance aperture and being beneficial to improving the imaging quality.

Description

Magnetic resonance system

Technical Field

The present application relates to the field of detection technology, and in particular, to a magnetic resonance system.

Background

A local coil in the magnetic resonance imaging system is a front-end sensing device for imaging, and radio-frequency small signals output by the local coil are transmitted to an upper computer through signal processing of a plurality of intermediate devices. The intermediate devices are connected by cables.

In the examination, the cable enters the magnetic resonance aperture of the magnetic resonance imaging system with the intermediary device. The cables have a degrading effect on the homogeneity of the electromagnetic field inside the magnetic resonance aperture, affecting the detection results, such as image homogeneity and signal-to-noise ratio of the magnetic resonance imaging. How to reduce the interference of the cable to the electromagnetic field inside the magnetic resonance aperture is an urgent problem to be solved.

Disclosure of Invention

In view of the above, it is necessary to provide a magnetic resonance system to solve the problem of how to reduce the uniformity of the electromagnetic field inside the magnetic resonance aperture due to the cables inside the aperture, and thus to reduce the image quality.

A magnetic resonance system comprises a bed frame, a bed board, a wireless charging emitter, a photoelectric converter and a driving device. The bed frame is configured to be disposed outside the magnetic resonance aperture. The bed board is connected with the bed frame in a sliding way. The wireless charging emitter is arranged on the bedstead. The photoelectric converter is arranged on the bed board. The driving device is in transmission connection with the bed board. The driving device is used for driving the bed board to move to a target position relative to the bed frame, so that the wireless charging emitter wirelessly charges the photoelectric converter.

In one embodiment, the magnetic resonance system further comprises a local coil and a radio frequency receiver. The local coil is used to generate a detection electrical signal. The local coil is connected with the radio frequency receiver. The radio frequency receiver is used for processing the detection electric signal. The radio frequency receiver is in communication connection with the photoelectric converter. The photoelectric converter is used for receiving the processed detection electric signal and converting the detection electric signal into an optical signal.

In one embodiment, the local coil comprises a stationary receive coil. The fixed receiving coil is arranged on the bed board, and the photoelectric converter and the fixed receiving coil are arranged at intervals.

In one embodiment, the bed frame is slotted. The wireless charging transmitter and the radio frequency receiver are arranged in the slot.

In one embodiment, the photoelectric converter includes a photoelectric conversion module, a first power supply module, and a wireless charging reception module. The photoelectric conversion module is in communication connection with the radio frequency receiver, and is used for receiving the packed detection electric signals and converting the detection electric signals into optical signals. The first power supply module is connected with the photoelectric conversion module. The wireless charging receiving module is connected with the first power supply module. The wireless charging receiving module is used for being in wireless connection with the wireless charging transmitter and charging the first power supply module.

In one embodiment, the photoelectric converter further comprises a first switch. The first switch is connected between the first power supply module and the photoelectric conversion module.

In one embodiment, the photoelectric converter further includes a first housing and a first elastic member.

The first housing encloses a first space. The photoelectric conversion module, the first power supply module and the wireless charging receiving module are respectively accommodated in the first space. The first space is provided with a first opening. The first switch is disposed at the first opening. Two ends of the first elastic element are respectively abutted against the inner sides of the first switch and the first shell.

In one embodiment, the radio frequency receiver comprises a radio frequency receiving module and a second shell. The radio frequency receiving module is electrically connected with the local coil.

The second housing encloses a second space. The radio frequency receiving module is received in the second space.

In one embodiment, the second housing defines a second opening. The radio frequency receiver further comprises a second power supply module, a second switch and a second elastic element. The second power supply module is electrically connected with the radio frequency receiving module, and the second power supply module is accommodated in the second space. The second switch is connected between the second power supply module and the radio frequency receiving module. The second switch is disposed at the second opening. Two ends of the second elastic element are respectively abutted to the inner sides of the second switch and the second shell.

In one embodiment, the magnetic resonance system further comprises a transfer station and an upper computer. The photoelectric converter is connected with the transfer station, and the transfer station is used for receiving the optical signal and obtaining original data according to the optical signal. The upper computer is connected with the transfer station. And the upper computer is used for converting the original data into an image.

In one embodiment, the photoelectric converter is in a plurality, the wireless charging transmitter is in a plurality, and the photoelectric converter and the wireless charging transmitter are arranged in a one-to-one correspondence manner.

In one embodiment, a plurality of the photoelectric converters are arranged around the edge of the bed board.

The magnetic resonance system that this application embodiment provided includes bedstead, wireless transmitter that charges, photoelectric converter, bed board and drive arrangement. The bed frame is configured to be disposed outside the magnetic resonance aperture. The wireless charging emitter is arranged on the bedstead. The photoelectric converter is arranged on the bed board. The driving device is in transmission connection with the bed board. The driving device is used for driving the bed board to move to a target position relative to the bed frame so as to align the wireless charging transmitter with the photoelectric converter. The wireless charging transmitter wirelessly charges the photoelectric converter. The wireless charging transmitter in the magnetic resonance system is arranged in the outer space of the magnetic resonance aperture to wirelessly charge the photoelectric converter. The magnetic resonance system avoids the photoelectric converter from being charged inside the magnetic resonance aperture through a cable, reduces the interference of the cable to the electromagnetic field inside the magnetic resonance aperture, improves the uniformity of the electromagnetic field inside the magnetic resonance aperture, and further improves the detection accuracy. In addition, need not to lay the cable in the bed board, avoid setting up the embedding radio frequency trapper of specific transmitting frequency. The bed board can be compatible with magnetic resonance scanning of various different field strengths. Compared with the traditional magnetic resonance system, after the radio frequency wave trap embedded in the bed board in the magnetic resonance system is removed, the effect of gamma photon scattering is greatly reduced, the attenuation correction effect in positron emission computed tomography reconstruction is optimized, and the image quality is improved.

Drawings

Fig. 1 is a schematic diagram of a structure of the magnetic resonance system provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of the wireless charging transmitter for wirelessly charging the photoelectric converter according to an embodiment of the present application;

figure 3 is a schematic top view of the magnetic resonance system provided in an embodiment of the present application;

figure 4 is a schematic top view of the magnetic resonance system as provided in another embodiment of the present application;

figure 5 is a schematic diagram of electrical connections of the magnetic resonance system provided in an embodiment of the present application;

fig. 6 is a schematic structural diagram of the rf receiver inserted into the slot according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of the rf receiver inserted into the slot according to another embodiment of the present application;

fig. 8 is an enlarged schematic structural view of the rf receiver provided in another embodiment of the present application before being inserted into the slot;

fig. 9 is an enlarged schematic structural view of the rf receiver inserted into the slot according to another embodiment of the present application;

fig. 10 is an enlarged schematic structural view of the rf receiver inserted into the slot according to another embodiment of the present application.

Reference numerals:

magnetic resonance system 10

Bed frame 20

Magnetic resonance aperture 100

Wireless charging transmitter 30

Photoelectric converter 40

Photoelectric conversion module 410

First power supply module 420

Wireless charging receiving module 430

First switch 440

First shell 450

First space 451

First opening 452

First elastic element 460

Radio frequency receiver 50

Radio frequency receiving module 510

Second housing 520

Second space 521

Second opening 522

Second Power Module 530

Second switch 540

Second elastic element 550

Bed board 60

Slot 601

Drive device 70

Local coil 80

Fixed receive coil 810

Mobile receive coil 820

Transfer station 920

Upper computer 930

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and it is therefore not intended to be limited to the embodiments disclosed below.

The numbering of the components as such, e.g., "first", "second", etc., is used herein for the purpose of describing the objects only, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 and 2, an embodiment of the present application provides a magnetic resonance system 10 including a bed frame 20, a bed board 60, a wireless charging transmitter 30, an optoelectronic converter 40, and a driving device 70. The bed frame 20 is adapted to be disposed outside the magnetic resonance aperture 100. The deck 60 is slidably connected to the frame 20. The wireless charging transmitter 30 is disposed on the bed frame 20. The photoelectric converter 40 is disposed on the bed plate 60. The driving device 70 is in transmission connection with the bed board 60. The driving device 70 is used to drive the bed board 60 to move to a target position, so that the wireless charging transmitter 30 wirelessly charges the photoelectric converter 40.

The driving device 70 of the magnetic resonance system 10 provided in the embodiment of the present application is used to move the bed board 60 relative to the bed frame 20, so as to align the wireless charging transmitter 30 with the photoelectric converter 40. The wireless charging transmitter 30 is used for wirelessly charging the photoelectric converter 40. The wireless charging transmitter 30 wirelessly charges the photoelectric converter 40 at a space outside the magnetic resonance aperture. The magnetic resonance system 10 prevents the photoelectric converter 40 from being charged inside the magnetic resonance aperture through a cable, reduces interference of the cable to an electromagnetic field inside the magnetic resonance aperture, improves uniformity of the electromagnetic field inside the magnetic resonance aperture, and further improves detection accuracy. In addition, need not to lay the cable in the bed board, avoid setting up the embedding radio frequency trapper of specific transmitting frequency. The bed board can be compatible with magnetic resonance scanning of various different field strengths. Compared with the traditional magnetic resonance system, after the radio frequency wave trap embedded in the bed board in the magnetic resonance system is removed, the effect of gamma photon scattering is greatly reduced, the attenuation correction effect in PET (positron emission computed tomography) reconstruction is optimized, and the image quality is improved.

The bed frame 20 is configured to be disposed outside the magnetic resonance aperture 100. The magnetic resonance aperture 100 is used to generate a detection magnetic field. The human body lies on the bed board 60, and the driving device 70 drives the bed board 60 to enter the magnetic resonance aperture 100. Upon completion of a human examination, the drive mechanism 70 slides the couch plate 60 away from the magnetic resonance aperture 100.

The wireless charging transmitter 30 is used for connecting with an external power source. In one embodiment, the drive device 70 is a drag chain. When the driving device 70 is used to drive the bed board 60 to move to the target position, the wireless charging transmitter 30 is aligned with the photoelectric converter 40. The wireless charging transmitter 30 charges the photoelectric converter 40.

In one embodiment, the depicted magnetic resonance system 10 further includes a local coil 80 and a radio frequency receiver 50. The local coil 80 is used to generate a detection electrical signal. The local coil 80 is connected to the radio frequency receiver 50. The rf receiver 50 is configured to process the detected electrical signal. The rf receiver 50 is communicatively coupled to the optical-to-electrical converter 40. The photoelectric converter 40 is configured to receive the processed detection electrical signal and convert the detection electrical signal into an optical signal. The radio frequency receiver 50 and the photoelectric converter 40 communicate wirelessly.

In the above embodiment, the rf receiver 50 is configured to perform analog method, AD sampling, filtering and data packing processing on the detected electrical signal.

The radio frequency receiver 50 and the photoelectric converter 40 are connected by short-distance wireless communication. The communication connection can be in the form of non-contact ultra-short distance signal coupling (transparent transmission) transmission, near-distance wireless transmission similar to NFC, or directional antenna transmission similar to millimeter wave mmWave radar at dozens of GHz carrier frequencies, and the like.

The magnetic resonance system 10 avoids long distance electrical cabling within the magnetic resonance aperture 100 and instead near field wireless transmission. The magnetic resonance system 10 completely eliminates the risk of coupling radio frequency transmission high power and greatly improves the uniformity of the radio frequency transmission field. Since the bedplate 60 does not include electrical transmissions, no specific embedded radio frequency notching mechanism modules for different transmit field frequencies are needed within the bedplate 60. The bed board 60 can be compatible with magnetic resonance detection systems with various field strengths, and avoids the mutual influence between a wireless charging coil and a gradient field and between the wireless charging coil and a radio frequency transmitting field.

In one embodiment, the local coil 80 and the rf receiver 50 are integrated, which improves the signal-to-noise ratio and improves the accuracy of the detected signal.

Referring also to fig. 3, in one embodiment, the local coil 80 includes a stationary receive coil 810. The fixed receiving coil 810 is disposed on the bed plate 60, and the photoelectric converter 40 and the fixed receiving coil 810 are spaced apart from each other. The stationary receive coil 810 is connected to the radio frequency receiver 50. The stationary receive coil 810 includes a head coil or spine coil.

The fixed receiving coil 810 is disposed at a position above, in the middle, or below the bed plate 60.

In one embodiment, the local coil 80 and the radio frequency receiver 50 are mechanically coupled, which improves the ease of positioning and reliability of coupling of the local coil 80.

In one embodiment, the local coil 80 and the radio frequency receiver 50 are removably connected, increasing flexibility of connection.

Referring also to fig. 4, in one embodiment, the local coil 80 includes a mobile receive coil 820. The mobile receiving coil 820 is connected to the radio frequency receiver 50. The mobile receiving coil 820 is flexible in arrangement, and the efficiency of clinical operation is improved.

In one embodiment, the local coil 80 may be divided into a rigid portion and a flexible portion. The flexible portion includes a coil body and a hose. The rigid part comprises the coil socket and said radio frequency receiver 50. A coil information storage unit is contained in the coil socket. The hose contains interconnections between the coil units within the coil body and the radio frequency receiver 50. The radio frequency receiver 50 can be disassembled so as to be charged by an external charging device, and the maintenance is easy.

The radio frequency receiver 50 is at a safe distance from the local coil 80 and the patient, greatly reducing the risk of heating and disrupting the homogeneity of the static/gradient/radio frequency transmit field in the imaging region.

Referring to fig. 5 and 6, in one embodiment, the bed frame 20 is provided with a slot 601. The wireless charging transmitter 30 and the rf receiver 50 are disposed in the slot 601.

In one embodiment, the wireless charging transmitter 30 is fixed in the slot 601. The rf receiver 50 is plug-mounted in the slot 601. The wireless charging transmitter 30 and the rf receiver 50 are pressed into the slot 601.

When the detection is needed, the rf receiver 50 is inserted into the slot 601, and the rf receiver 50 is communicatively connected to the wireless charging transmitter 30. The rf receiver 50 is in wireless communication with the wireless charging transmitter 30.

The rf receiver 50 and the wireless charging transmitter 30 are interconnected by near field communication in a direct inductive coupling manner without additional protocol wrapping. The radio frequency receiver 50 is accurately connected with the bed board 60 through the slot 601.

Referring to fig. 7, in one embodiment, the photoelectric converter 40 includes a photoelectric conversion module 410, a first power module 420, and a wireless charging receiving module 430. The photoelectric conversion module 410 is configured to be in communication connection with the radio frequency receiver 50, so as to receive the packed detection electrical signal and convert the detection electrical signal into an optical signal. The first power module 420 is connected to the photoelectric conversion module 410. The wireless charging receiving module 430 is connected to the first power module 420. The wireless charging receiving module 430 is configured to be wirelessly connected to the wireless charging transmitter 30 to charge the first power module 420.

In one embodiment, the optical-to-electrical converter 40 further includes a first switch 440. The first switch 440 is connected between the first power module 420 and the photoelectric conversion module 410. The first switch 440 is used to control whether the first power module 420 supplies power to the photoelectric conversion module 410. When the detection is not performed, the first switch 440 is turned off, and the first power module 420 stops supplying power to the photoelectric conversion module 410. The first switch 440 increases the endurance of the first power module 420.

Referring to fig. 8, 9 and 10, in one embodiment, the photoelectric converter 40 further includes a first housing 450 and a first elastic element 460. The first housing 450 encloses a first space 451. The photoelectric conversion module 410, the first power module 420, and the wireless charging receiving module 430 are respectively accommodated in the first space 451. The first space 451 is opened with a first opening 452. The first switch 440 is disposed at the first opening 452. Both ends of the first elastic element 460 are respectively abutted against the first switch 440 and the inner side of the first shell 450.

When the first switch 440 is pressed, the first elastic element 460 is compressed, and the first power module 420 supplies power to the photoelectric conversion module 410.

When the first switch 440 is not subjected to an external force, the first elastic element 460 rebounds and the first switch 440 is reset. The first power module 420 stops supplying power to the photoelectric conversion module 410.

The photoelectric converter 40 can realize long-time endurance through the first power module 420, and is insensitive to charging efficiency, and the loop area of the charging receiving coil can be smaller, thereby further saving space.

In one embodiment, the first switch 440 is a push button. The first switch 40 is controlled to be turned off by mechanically butting the trigger button, so that the control reliability is improved.

In one embodiment, the photoelectric converter 40 includes a first circuit board and a second circuit board. The first circuit board includes the first power module 420 and the wireless charging receiving module 430. The first circuit board is perpendicular to the plane of the second circuit board. The second circuit board includes the photoelectric conversion module 410 and the first switch 440. The photoelectric conversion module 410 includes a near-field induction device.

In one embodiment, the magnetic field direction of the radio frequency transmit field emitted by the radio frequency transmit coil in the magnetic imaging system is in the X-Y plane. The first circuit board comprises a charging coil therein. If the near-field induction device is an inductive probe, the magnetic flux direction of the inductive element is along the Z direction so as to avoid the mutual influence with the radio frequency emission field. The direction of the charging coil in the first circuit board is also in the X-Z plane. The charging coil is connected in series with a parallel resonance network of an inductor and a capacitor. The inductance and the capacitance resonance frequency are near the central frequency of the magnetic imaging system, so that the effect of a wave trap is achieved, and the mutual influence of the inductance and the capacitance resonance frequency with a radio frequency transmitting field is avoided.

In one embodiment, the near field inductive device is a capacitive inductive element or an inductive element.

In one embodiment, the rf receiver 50 includes an rf receiving module 510 and a second housing 520. The radio frequency receive module 510 is electrically connected to the local coil 80.

The second housing 520 encloses a second space 521. The rf receiving module 510 is received in the second space 521.

When the second housing 520 is inserted into the slot 601, the second housing 520 pushes the first switch 40 to be closed. When the second housing 520 is pulled out of the slot 601, the first elastic element 460 pushes the first switch 40 to be turned off.

When the second housing 520 and the first housing 450 are received in the slot 601 together, the rf receiving module 510 is in wireless communication with the photoelectric conversion module 410. The rf receiving module 510 transmits the packed detection electrical signal to the photoelectric conversion module 410. The photoelectric conversion module 410 converts the packed detection electrical signal into an optical signal.

In one embodiment, the second housing 520 defines a second opening 522. The rf receiver 50 further includes a second power module 530, a second switch 540, and a second elastic element 550. The second power module 530 is electrically connected to the rf receiving module 510, and the second power module 530 is received in the second space 521. The second switch 540 is connected between the second power module 530 and the rf receiving module 510. The second switch 540 is disposed at the second opening 522. Both ends of the second elastic element 550 are respectively abutted against the second switch 540 and the inner side of the second housing 520.

The second housing 520 reduces the complexity of the interface, greatly reduces the size, contributes to reducing the interconnection cost, and improves the distribution density of the interface.

When the second housing 520 is inserted into the slot 601, the second housing 520 pushes the first switch 40 to be closed, and the first housing 450 pushes the second switch 540 to be closed.

In one embodiment, when the second housing 520 is inserted into the slot 601, the first switch 40 and the second switch 540 push each other, and the first switch 40 and the second switch 540 are closed simultaneously.

In one embodiment, the magnetic resonance system 10 further includes a transfer station 920 and a host computer 930. The photoelectric converter 40 is connected to the transfer station 920. The transfer station 920 is configured to receive the optical signal and obtain original data according to the optical signal. The upper computer 930 is connected with the transfer station 920. The upper computer 930 is configured to convert the raw data into an image.

In one embodiment, the magnetic resonance system 10 further comprises an optical fiber. The optical fiber is connected between the photoelectric converter 40 and the transfer station 920.

In one embodiment, the optical fibers are connected in parallel with the drive device 70.

In one embodiment, the number of the photoelectric converters 40 is multiple, the number of the wireless charging transmitters 30 is multiple, and the photoelectric converters 40 and the wireless charging transmitters 30 are arranged in a one-to-one correspondence.

In one embodiment, a plurality of the photoelectric converters 40 are arranged around the edge of the bed board 60, so as to avoid mutual interference between the photoelectric converters 40 and the fixed receiving coil 810.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-described examples merely represent several embodiments of the present application and are not to be construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A magnetic resonance system, comprising:

a bed frame (20) provided in an outer space of the magnetic resonance aperture (100);

a bed plate (60) slidably connected to the bed frame (20);

a wireless charging transmitter (30) provided to the bed frame (20);

a photoelectric converter (40) provided on the bed plate (60);

the driving device (70) is in transmission connection with the bed board (60), the driving device (70) is used for driving the bed board (60) to move relative to the bed frame (20), the bed board (60) is used for moving to a target position, and therefore the wireless charging transmitter (30) wirelessly charges the photoelectric converter (40).

2. The magnetic resonance system as set forth in claim 1, further including:

a local coil (80) for inducing and generating a detection electrical signal;

the local coil (80) is connected with the radio frequency receiver (50), the radio frequency receiver (50) is used for processing the detection electric signal, the radio frequency receiver (50) is in communication connection with the photoelectric converter (40), and the photoelectric converter (40) is used for receiving the processed detection electric signal and converting the detection electric signal into an optical signal.

3. The magnetic resonance system as set forth in claim 2, wherein the local coil (80) includes:

the fixed receiving coil (810) is arranged on the bed plate (60), and the photoelectric converter (40) and the fixed receiving coil (810) are arranged at intervals.

4. The magnetic resonance system of claim 2, wherein the bed frame (20) is slotted (601), the wireless charging transmitter (30) and the radio frequency receiver (50) being disposed in the slotted (601).

5. The magnetic resonance system as set forth in claim 2, wherein the photoelectric converter (40) includes:

the photoelectric conversion module (410) is in communication connection with the radio frequency receiver (50), and the photoelectric conversion module (410) is used for receiving the packed detection electric signal and converting the detection electric signal into an optical signal;

a first power supply module (420) connected to the photoelectric conversion module (410);

the wireless charging receiving module (430) is connected with the first power supply module (420), and the wireless charging receiving module (430) is used for being in wireless connection with the wireless charging transmitter (30) and charging the first power supply module (420).

6. The magnetic resonance system of claim 5, wherein the photoelectric converter (40) further includes:

a first switch (440) connected between the first power supply module (420) and the photoelectric conversion module (410).

7. The magnetic resonance system of claim 6, wherein the photoelectric converter (40) further includes:

a first housing (450) enclosing a first space (451), wherein the photoelectric conversion module (410), the first power module (420), and the wireless charging reception module (430) are respectively accommodated in the first space (451), a first opening (452) is opened in the first space (451), and the first switch (440) is disposed at the first opening (452);

a first elastic element (460), wherein two ends of the first elastic element (460) are respectively abutted against the first switch (440) and the inner side of the first shell (450).

8. The magnetic resonance system as set forth in claim 7, wherein the radio frequency receiver (50) includes:

a radio frequency receive module (510), the radio frequency receive module (510) being electrically connected with the local coil (80);

and a second housing (520) enclosing a second space (521), wherein the radio frequency receiving module (510) is accommodated in the second space (521).

9. The magnetic resonance system as set forth in claim 8, wherein the second housing (520) defines a second opening (522), the radio frequency receiver (50) further including:

a second power supply module (530), wherein the second power supply module (530) is electrically connected with the radio frequency receiving module (510), and the second power supply module (530) is accommodated in the second space (521);

a second switch (540) connected between the second power supply module (530) and the radio frequency receiving module (510), the second switch (540) being disposed at the second opening (522);

and a second elastic element (550), wherein two ends of the second elastic element (550) are respectively abutted against the second switch (540) and the inner side of the second shell (520).

10. The magnetic resonance system as set forth in claim 2, further including:

the photoelectric converter (40) is connected with the transfer station (920), and the transfer station (920) is used for receiving the optical signal and obtaining original data according to the optical signal;

and the upper computer (930) is connected with the transfer station (920), and the upper computer (930) is used for converting the original data into an image.

11. The magnetic resonance system according to claim 1, wherein the photoelectric converter (40) is provided in plurality, the wireless charging transmitter (30) is provided in plurality, and the photoelectric converter (40) and the wireless charging transmitter (30) are provided in one-to-one correspondence.

12. The mr system of claim 11 wherein a plurality of said photoelectric converters (40) are positioned around the edge of said couch top (60).