CN114252826A - Bed assembly of magnetic resonance imaging device and magnetic resonance imaging device - Google Patents
Bed assembly of magnetic resonance imaging device and magnetic resonance imaging device Download PDFInfo
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- CN114252826A CN114252826A CN202010997003.2A CN202010997003A CN114252826A CN 114252826 A CN114252826 A CN 114252826A CN 202010997003 A CN202010997003 A CN 202010997003A CN 114252826 A CN114252826 A CN 114252826A
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- 238000002595 magnetic resonance imaging Methods 0.000 title claims abstract description 80
- 230000003287 optical effect Effects 0.000 claims abstract description 36
- 239000004020 conductor Substances 0.000 claims description 21
- 239000000835 fiber Substances 0.000 claims description 2
- 230000005693 optoelectronics Effects 0.000 claims 2
- 238000003384 imaging method Methods 0.000 abstract description 18
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
- G01R33/48—NMR imaging systems
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
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Abstract
A bed assembly for a magnetic resonance imaging apparatus includes a bed plate (10), a radio frequency coil (20) and an optical cable (30). The bed plate (10) has a first end (11) and a second end (12) which are remote from each other in the length direction (L) thereof. The first end (11) is used for extending into a magnet of the magnetic resonance imaging device. The optical cable (30) is arranged on the bed board (10). One end of the optical cable (30) is positioned at the first end (11) of the bed plate (10) and can be connected with the radio frequency coil (20). The optical cable (30) extends to the second end (12) of the bed board (10). The other end of the optical cable (30) is used for connecting a control system of the magnetic resonance imaging device. The bed component is beneficial to improving the imaging quality of the magnetic resonance imaging device. In addition, a magnetic resonance imaging apparatus comprising the bed assembly is also provided.
Description
Technical Field
The invention relates to a bed assembly, in particular to a bed assembly of a magnetic resonance imaging device and the magnetic resonance imaging device comprising the bed assembly.
Background
Magnetic Resonance Imaging (MRI) is a medical imaging technique that can be used for disease diagnosis. At present, a radio frequency coil of a magnetic resonance imaging apparatus is connected with a control system through a cable to transmit a control signal and a radio frequency signal. The cable is inevitably exposed to the magnetic field of the magnetic resonance imaging device, and signal transmission is easily interfered by electromagnetism, and noise is generated to influence the imaging quality.
Disclosure of Invention
It is an object of the invention to provide a bed assembly of a magnetic resonance imaging apparatus which facilitates an improved imaging quality of the magnetic resonance imaging apparatus.
It is a further object of the invention to provide a magnetic resonance imaging apparatus which facilitates improved imaging quality.
The invention provides a bed assembly of a magnetic resonance imaging device, which comprises a bed plate, a radio frequency coil and an optical cable. The deck has a first end and a second end spaced apart from each other along its length. The first end is used for extending into a magnet of the magnetic resonance imaging device. The optical cable is arranged on the bed board. One end of the optical cable is located at the first end of the bed plate and can be connected with the radio frequency coil. The optical cable extends to the second end of bed board. The other end of the optical cable is used for connecting a control system of the magnetic resonance imaging device.
The bed component of the magnetic resonance imaging device transmits signals between the first end and the second end of the bed plate in a long distance through the optical cable, so that the imaging quality of the magnetic resonance imaging device is improved.
In another exemplary embodiment of the bed assembly of the magnetic resonance imaging apparatus, the bed assembly further comprises a first connection and a second connection. The first connecting piece is arranged at the first end of the bed board and is connected with one end, located at the first end of the bed board, of the optical cable. The second connecting piece is connected with the first connecting piece in a pluggable mode and is connected with the radio frequency coil. The optical cable can be connected to the radio frequency coil by the first connector and the second connector. Thereby increasing flexibility.
In yet another exemplary embodiment of the bed assembly of the magnetic resonance imaging apparatus, the bed assembly further comprises a first photoelectric converter and an analog-to-digital converter. The first photoelectric converter is arranged at the first end of the bed board and connected with one end of the optical cable, which is positioned at the first end of the bed board. The analog-to-digital converter is connected with the first photoelectric converter and the first connecting piece. The first connecting piece is connected with one end of the optical cable, which is positioned at the first end of the bed board, through the analog-to-digital converter and the first photoelectric converter. Thereby effecting conversion of the signals.
In a further exemplary embodiment of the bed assembly of the magnetic resonance imaging apparatus, the bed assembly is provided with a plurality of first connections. The bed assembly further comprises a switch box which is arranged at the first end of the bed board and is connected with the analog-to-digital converter and the plurality of first connecting pieces. The switch box can switchably communicate any one of the first connectors with the analog-to-digital converter. The bed assembly is provided with a plurality of second connectors and a plurality of radio frequency coils. The second connecting pieces are respectively connected with the radio frequency coils. The second connecting pieces are respectively connected with the first connecting pieces in a pluggable manner. Thereby contributing to the improvement of the applicability.
In yet another illustrative embodiment of the bed assembly of the magnetic resonance imaging apparatus, the bed assembly further comprises a tuning module disposed at the first end of the couch plate. The switch box is connected with the analog-to-digital converter through the tuning module. The tuning module is capable of controlling the radio frequency coil to effect tuning of the radio frequency coil.
In yet another illustrative embodiment of the bed assembly of the magnetic resonance imaging apparatus, the bed assembly further comprises an analog-to-digital converter and a first photoelectric converter. The analog-to-digital converter is connected with the radio frequency coil. The first photoelectric converter is connected with the analog-to-digital converter and the second connecting piece. The second connecting piece is connected with the radio frequency coil through the first photoelectric converter and the analog-to-digital converter. Thereby effecting conversion of the signals.
In a further exemplary embodiment of the bed assembly of the magnetic resonance imaging apparatus, the bed assembly further comprises a support. The radio frequency coil, the analog-to-digital converter, the first photoelectric converter and the second connecting piece are inseparably arranged on the supporting piece. Thereby facilitating use.
In a further exemplary embodiment of the bed assembly of the magnetic resonance imaging apparatus, the bed assembly further comprises a first accumulator inseparably arranged on the support and connected to the radio frequency coil for supplying power to the radio frequency coil. Therefore, the power supply circuit of the radio frequency coil can be further simplified, and the performance of the transmitting field and the imaging quality are further improved.
In yet another illustrative embodiment of the bed assembly of the magnetic resonance imaging apparatus, the bed assembly further comprises a second battery disposed at the first end of the couch plate and connected to the first connector to supply power to the rf coil through the first connector and the second connector. The structure is simple, the power supply cable is prevented from being arranged in a long distance, and the performance and the imaging quality of a transmitting field are further improved.
In a further exemplary embodiment of the bed assembly of the magnetic resonance imaging apparatus, the bed assembly further comprises a bed frame and a charger. The bed board is movably connected with the bed frame along the length direction and the reverse direction thereof so as to extend into or withdraw from the magnet of the magnetic resonance imaging device. The charger is arranged on the bed frame and can automatically charge the second storage battery when the bed board is positioned at a charging position of the magnet which is withdrawn from the magnetic resonance imaging device. Thereby facilitating charging.
In yet another illustrative embodiment of a couch assembly of a magnetic resonance imaging apparatus, the couch plate is movable in a length direction to extend into a magnet of the magnetic resonance imaging apparatus. The bed assembly also includes a conductor rail and an electrical conductor. The conductor rail extends along the length direction of the bed plate and is fixedly arranged relative to a magnet of the magnetic resonance imaging device. The conductor rails are used for connecting a power supply. The electric conductor is arranged at the first end of the bed board and is connected with the first connecting piece. The electric conductor can be in conductive contact with the conductor rail after the bed board extends into the magnet of the magnetic resonance imaging device along the length direction. The structure is simple, the power supply cable is prevented from being arranged in a long distance, and the performance and the imaging quality of a transmitting field are further improved.
In a further exemplary embodiment of the bed assembly of the magnetic resonance imaging apparatus, the bed assembly further comprises a supply cable having one end connected to the first connecting member. The power supply cable extends to the second end of the bed board. The other end of the power supply cable is used for connecting a power supply to supply power to the radio frequency coil. The supply cable is provided with a plurality of radio frequency choke resonators. The adverse effect on the performance of a transmitting field and the imaging quality can be reduced by arranging the radio frequency choking resonator, and the imaging quality is improved.
In yet another illustrative embodiment of the bed assembly of the magnetic resonance imaging apparatus, the bed assembly further comprises a second photoelectric converter disposed at the second end of the couch plate. The optical cable can be connected with a control system of the magnetic resonance imaging device through the second photoelectric converter. So as to be beneficial to reducing the cost.
In yet another illustrative embodiment of the bed assembly of the magnetic resonance imaging apparatus, the bed assembly further comprises a third connector disposed at the second end of the couch plate. The second connecting piece is alternatively connected with one of the first connecting piece and a third connecting piece in a pluggable manner, and the third connecting piece is used for connecting a control system of the magnetic resonance imaging device. Thereby use more in a flexible way, and do benefit to the length that reduces the cable of connecting second connecting piece and radio frequency coil.
The invention also provides a magnetic resonance imaging device which comprises the bed assembly. The bed component is beneficial to improving the imaging quality of the magnetic resonance imaging device.
Drawings
The following drawings are only schematic illustrations and explanations of the present invention, and do not limit the scope of the present invention.
Fig. 1 is a schematic structural diagram of a first exemplary embodiment of a bed assembly of a magnetic resonance imaging apparatus.
Figure 2 is a schematic structural diagram of a second exemplary embodiment of a bed assembly of a magnetic resonance imaging apparatus.
Figure 3 is a schematic structural view of a third exemplary embodiment of a couch assembly of a magnetic resonance imaging apparatus.
Figure 4 is a schematic structural view of a fourth exemplary embodiment of a couch assembly of a magnetic resonance imaging apparatus.
Fig. 5 is a view of a variation of the bed assembly shown in fig. 4.
Fig. 6 is a partial schematic structural view for explaining a fifth exemplary embodiment of a bed assembly of a magnetic resonance imaging apparatus.
Figure 7 is a schematic structural diagram of a sixth exemplary embodiment of a couch assembly of a magnetic resonance imaging apparatus.
Description of the reference symbols
10 bed board
11 first end
12 second end
20 radio frequency coil
30 optical cable
41 first connecting member
42 second connecting piece
43 third connecting part
51 first photoelectric converter
52 analog-to-digital converter
54 switch box
55 tuning module
56 support
61 first accumulator
62 second accumulator
63 charger
64 conductor rail
65 electric conductor
66 power supply cable
661 RF choke resonator
70 bed frame
80 second photoelectric converter
90 magnet
L longitudinal direction
Detailed Description
In order to more clearly understand the technical features, objects and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings, in which the same reference numerals indicate the same or structurally similar but functionally identical elements.
"exemplary" means "serving as an example, instance, or illustration" herein, and any illustration, embodiment, or steps described as "exemplary" herein should not be construed as a preferred or advantageous alternative.
In this document, "first", "second", etc. do not mean their importance or order, etc., but merely mean that they are distinguished from each other so as to facilitate the description of the document.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product.
Fig. 1 is a schematic structural diagram of a first exemplary embodiment of a bed assembly of a magnetic resonance imaging apparatus. As shown in fig. 1, the bed assembly of the magnetic resonance imaging apparatus includes a bed board 10, a bed frame 70, a radio frequency coil 20 and an optical cable 30. The bed board 10 is used for carrying a body to be measured, such as a human body. The top board 10 is movably connected to the bed frame 70 along the length direction L and the direction opposite to the length direction L to extend into or withdraw from the magnet of the mri apparatus. The deck 10 has a first end 11 and a second end 12 remote from each other along its length direction L. Wherein the first end 11 is adapted to extend into a magnet of the magnetic resonance imaging apparatus.
The optical cable 30 is disposed on the bed board 10. One end of the optical cable 30 is located at the first end 11 of the bed plate 10 and can be connected with the radio frequency coil 20. The fiber optic cable 30 extends to the second end 12 of the deck 10. The other end of the optical cable 30 is used for connecting a control system of the magnetic resonance imaging device.
Specifically, as shown in fig. 1, in the present exemplary embodiment, the bed assembly further comprises a first connector 41, a second connector 42, a first photoelectric converter 51 and an analog-to-digital converter 52. The first connector 41, the first photoelectric converter 51 and the analog-to-digital converter 52 are disposed at the first end 11 of the bed board 10. The second connector 42 is connected to the first connector 41 in a pluggable manner and is connected to the radio frequency coil 20. The second connector 42 is connected to the radio frequency coil 20, for example by a cable. In this illustrative embodiment, the bed assembly also includes a support member 56. The radio frequency coil 20, the second connector 42 and the cable connecting the two are inseparably provided to the support 56, whereby the use is facilitated.
A first opto-electric converter 51 is connected to the end of the optical cable 30 at the first end 11 for effecting conversion of electrical and optical signals. The analog-to-digital converter 52 is connected to the first photoelectric converter 51 and the first connection 41, and is used for converting an analog signal and a digital signal. Thereby, the first connector 41 is connected to the end of the optical cable 30 at the first end 11 via the analog-to-digital converter 52 and the first photoelectric converter 51. When the first connector 41 and the second connector 42 are connected, the radio frequency coil 20 and the control system of the magnetic resonance imaging apparatus can transmit the control signal and the radio frequency signal.
In order to improve the comfort of the subject, it is necessary to reduce the length of the cable connecting the second connector 42 and the radio frequency coil 20 as much as possible, and when the portion to be subjected to magnetic resonance imaging is close to the first end 11 of the couch top 10, the length of the cable is reduced by connecting the second connector 42 to the first connector 41.
In use, the second connector 42 may be connected to the first connector 41, and control signals and radio frequency signals may be transmitted over a long distance between the first end 11 and the second end 12 of the bed board 10 via the optical cable 30. Since the optical signal is hardly affected by the electromagnetic interference, the transmission quality of the signal can be improved by the optical cable 30, thereby being beneficial to improving the imaging quality of the magnetic resonance imaging apparatus.
As shown in fig. 1, in this illustrative embodiment, the bed assembly further includes a third connector 43 disposed at the second end 12 of the deck 10. The second connecting member 42 is alternatively connected to one of the first connecting member 41 and the third connecting member 43 in a pluggable manner. The third connection 43 is connected to the control system of the magnetic resonance imaging apparatus, for example by a cable. When a location where magnetic resonance imaging is desired is near the second end 12 of the couch top 10, the second connector 42 may be connected to the third connector 43. Thereby providing more flexibility in use and facilitating a reduction in the length of the cable connecting the second connector 42 and the radio frequency coil 20.
As shown in fig. 1, in this illustrative embodiment, the bed assembly further comprises a power supply cable 66, one end of which is connected to the first connector 41. The power supply cable 66 extends to the second end 12 of the bed board 10. The other end of the power cable 66 is used to connect a power source to power the rf coil 20. A radio frequency choke resonator (RF trap, also called radio frequency trap) 661 (only one of which is schematically indicated in the figure) is constructed at regular intervals on the supply cable 66. The rf choke resonator 661 is equivalent to a parallel inductor capacitor, and the parallel inductor capacitor in the resonance state is equivalent to an open circuit resistor to suppress the rf current on the shielding layer of the power supply cable 66, thereby reducing adverse effects on the performance of the transmission field and the imaging quality and improving the imaging quality. The third connector 43 is also connected to a power source via a cable to supply power to the rf coil 20.
Figure 2 is a schematic structural diagram of a second exemplary embodiment of a bed assembly of a magnetic resonance imaging apparatus. The same or similar parts of the bed assembly of this exemplary embodiment as the bed assembly shown in fig. 1 will not be described again, except that the bed assembly of this exemplary embodiment further includes a second photoelectric converter 80 disposed at the second end 12 of the bed plate 10. The optical cable 30 can be connected to the control system of the magnetic resonance imaging apparatus via the second photoelectric converter 80. The second photoelectric converter 80 is connected to the control system of the magnetic resonance imaging apparatus, for example, by a cable with low cost, thereby reducing the cost.
Figure 3 is a schematic structural view of a third exemplary embodiment of a couch assembly of a magnetic resonance imaging apparatus. The same or similar parts of the bed assembly of this illustrative embodiment as the bed assembly shown in fig. 1 will not be described again here, except as described below. In the present exemplary embodiment, the power supply cable 66 is not provided. As shown in fig. 3, the bed assembly of the present exemplary embodiment further includes a second battery 62 and a charger 63. The charger 63 is used for connecting a power supply. The second battery 62 is disposed at the first end 11 of the bed board 10 and connected to the first connector 41, so as to supply power to the rf coil 20 through the first connector 41 and the second connector 42. The charger 63 is disposed on the bed frame 70 and is capable of automatically charging the second battery 62 when the top board 10 is located at a charging position (i.e., the position shown in fig. 3) for withdrawing the magnet of the mri apparatus. The charging method is, for example, wireless charging or wired charging. The structure is simple, the power supply cable is prevented from being arranged in a long distance, and the performance and the imaging quality of a transmitting field are further improved.
Figure 4 is a schematic structural view of a fourth exemplary embodiment of a couch assembly of a magnetic resonance imaging apparatus. The same or similar parts of the bed assembly of this illustrative embodiment as the bed assembly shown in fig. 1 will not be described again here, except as described below. In the present exemplary embodiment, the power supply cable 66 is not provided. As shown in FIG. 4, the bed assembly of this illustrative embodiment also includes a conductor rail 64 and an electrical conductor 65. The conductor rail 64 extends in the longitudinal direction L of the top board 10 and is fixed to the magnet 90 of the magnetic resonance imaging apparatus. The conductor rail 64 is used for connection to a power supply. The conductor 65 is disposed at the first end 11 of the bed plate 10 and connected to the first connector 41. As shown in fig. 5, the electrical conductor 65 can be in electrical contact with the conductor rail 64 to supply power to the rf coil 20 after the table board 10 extends into the magnet of the mri apparatus along the length direction L. The conductive body 65 is, for example, a conductive brush or a conductive wheel. The structure is simple, the power supply cable is prevented from being arranged in a long distance, and the performance and the imaging quality of a transmitting field are further improved.
Fig. 6 is a partial schematic structural view for explaining a fifth exemplary embodiment of a bed assembly of a magnetic resonance imaging apparatus. The same or similar parts of the bed assembly of this illustrative embodiment as the bed assembly shown in fig. 1 will not be described again here, except as described below. In the present exemplary embodiment, the bed assembly is provided with two first connections 41, the two first connections 41 being configured differently, for example. The bed assembly further includes a switch box 54 and a tuning module 55, both disposed at the first end 11 of the deck 10. The switch box 54 connects the tuning module 55 and the two first connectors 41. The tuning module 55 is connected to the analog-to-digital converter 52. The tuning module 55 is capable of controlling the radio frequency coil to effect tuning of the radio frequency coil. The switch box 54 is capable of switchably communicating any one of the first connectors 41 with the tuning module 55. The bed assembly is provided with two second connectors 42 and two radio frequency coils 20. The two second connecting elements 42 are, for example, configured differently. The two second connectors 42 are connected to the two radio frequency coils 20, respectively. The two second connecting members 42 are respectively connected to the two first connecting members 41 in a pluggable manner. Thereby improving applicability. In other exemplary embodiments, the number of first connectors 41, second connectors 42, and radio frequency coils 20 can be adjusted as desired.
Figure 7 is a schematic structural diagram of a sixth exemplary embodiment of a couch assembly of a magnetic resonance imaging apparatus. The same or similar parts of the bed assembly of this illustrative embodiment as the bed assembly shown in fig. 1 will not be described again here, except as described below. In the present exemplary embodiment, an analog-to-digital converter 52 is coupled to the radio frequency coil 20. The first photoelectric converter 51 is connected to the analog-to-digital converter 52 and the second connector 42. Thereby, the second connecting member 42 is connected to the radio frequency coil 20 through the first photoelectric converter 51 and the analog-to-digital converter 52. The rf coil 20, the analog-to-digital converter 52, the first photoelectric converter 51 and the second connector 42 are inseparably disposed on the support 56 to form an integral body.
In the exemplary embodiment shown in fig. 7, the supply cable 66 is not provided, but rather a first accumulator 61 is provided. The first battery 61 is disposed on the support 56 and connected to the rf coil 20 to supply power to the rf coil 20. This further simplifies the power supply circuit of the rf coil 20, and facilitates further improvement of the transmit field performance and imaging quality.
The invention also provides a magnetic resonance imaging apparatus, which in an exemplary embodiment comprises any one of the above-described bed assemblies. The bed component is beneficial to improving the imaging quality of the magnetic resonance imaging device. The specific principle is as described above, and is not described again.
It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications such as combinations, divisions or repetitions of features, which do not depart from the technical spirit of the present invention, should be included in the scope of the present invention.
Claims (15)
1. A bed assembly for a magnetic resonance imaging apparatus, comprising:
a couch plate (10) having a first end (11) and a second end (12) remote from each other in a length direction (L) thereof, the first end (11) for protruding into a magnet of the MRI apparatus; and
a radio frequency coil (20);
the bed assembly is characterized by further comprising an optical cable (30) arranged on the bed board (10), one end of the optical cable (30) is located at the first end (11) of the bed board (10) and can be connected with the radio frequency coil (20), the optical cable (30) extends to the second end (12) of the bed board (10), and the other end of the optical cable (30) is used for being connected with a control system of the magnetic resonance imaging device.
2. The bed assembly of claim 1, further comprising:
-a first connector (41) arranged at said first end (11) of said bed (10) and connected to an end of said optical cable (30) located at said first end (11) of said bed (10); and
a second connector (42) which is connected to the first connector (41) in a pluggable manner and to the radio frequency coil (20); the optical cable (30) is capable of connecting the radio frequency coil (20) by means of the first connector (41) and the second connector (42).
3. The bed assembly of claim 2, further comprising:
-a first photoelectric converter (51) arranged at the first end (11) of the bed (10) and connected to an end of the optical cable (30) located at the first end (11) of the bed (10); and
an analog-to-digital converter (52) connected to the first photoelectric converter (51) and the first connector (41), wherein the first connector (41) is connected to one end of the optical cable (30) at the first end (11) of the bed board (10) through the analog-to-digital converter (52) and the first photoelectric converter (51).
4. A bed assembly as claimed in claim 3, wherein said bed assembly is provided with a plurality of said first connectors (41); the bed assembly further comprises a switch box (54) arranged at the first end (11) of the bed board (10) and connected with the analog-to-digital converter (52) and the first connectors (41); the switch box (54) can switchably communicate any one of the first connectors (41) with the analog-to-digital converter (52); the bed assembly is provided with a plurality of second connectors (42) and a plurality of radio frequency coils (20); the second connectors (42) are respectively connected with the radio frequency coils (20); the second connecting pieces (42) are respectively connected with the first connecting pieces (41) in a pluggable manner.
5. The bed assembly of claim 4, further comprising a tuning module (55) disposed at said first end (11) of said bed deck (10); the switch box (54) is connected with the analog-to-digital converter (52) through the tuning module (55), and the tuning module (55) can control the radio frequency coil (20) to realize the tuning of the radio frequency coil (20).
6. The bed assembly of claim 2, further comprising:
an analog-to-digital converter (52) connected to the radio frequency coil (20); and
a first opto-electric converter (51) connecting said analog-to-digital converter (52) and said second connection (42); the second connecting piece (42) is connected with the radio frequency coil (20) through the first photoelectric converter (51) and the analog-to-digital converter (52).
7. The bed assembly of claim 6, further comprising a support member (56); the radio frequency coil (20), the analog-to-digital converter (52), the first photoelectric converter (51) and the second connector (42) are inseparably arranged on the support (56).
8. The bed assembly of claim 7, further comprising a first battery (61) inseparably disposed on the support member (56) and connected to the radio frequency coil (20) for powering the radio frequency coil (20).
9. The bed assembly as set forth in claim 2 further comprising a second battery (62) disposed at said first end (11) of said bed deck (10) and connected to said first connector (41) for powering said radio frequency coil (20) through said first connector (41) and said second connector (42).
10. The bed assembly of claim 9, further comprising:
a bed frame (70), the bed board (10) is movably connected with the bed frame (70) along the length direction (L) and the reverse direction thereof so as to extend into or withdraw from the magnet of the magnetic resonance imaging device; and
a charger (63) disposed on the bed frame (70) and capable of automatically charging the second battery (62) when the bed board (10) is located at a charging position out of the magnet of the magnetic resonance imaging apparatus.
11. The bed assembly of claim 2, wherein the couch plate (10) is movable in the length direction (L) to extend into a magnet of the magnetic resonance imaging apparatus; the bed assembly further comprises:
a conductor rail (64) extending along the length direction (L) of the bed plate (10) and fixedly arranged relative to a magnet of the magnetic resonance imaging device, wherein the conductor rail (64) is used for connecting a power supply; and
a conductor (65) which is provided at the first end (11) of the bed plate (10) and is connected to the first connector (41); the conductor (65) can be in conductive contact with the conductor rail (64) after the bed plate (10) extends into a magnet of the magnetic resonance imaging device along the length direction (L).
12. The bed assembly as set forth in claim 2 further including a power cable (66) connected at one end to said first connector (41), said power cable (66) extending to said second end (12) of said deck (10); the other end of the power supply cable (66) is used for connecting a power supply to supply power to the radio frequency coil (20); the supply cable (66) is provided with a plurality of radio frequency choke resonators (661).
13. The bed assembly as set forth in claim 1 further comprising a second opto-electronic converter (80) disposed at the second end (12) of the couch board (10), the fiber optic cable (30) being connectable to a control system of the MRI apparatus via the second opto-electronic converter (80).
14. The bed assembly as set forth in claim 2 further comprising a third connector (43) disposed at the second end (12) of the bed deck (10), the second connector (42) alternatively being removably connectable to one of the first connector (41) and the third connector (43), the third connector (43) being adapted to connect to a control system of the MRI apparatus.
15. A magnetic resonance imaging apparatus, comprising a bed assembly as claimed in any one of claims 1 to 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010997003.2A CN114252826A (en) | 2020-09-21 | 2020-09-21 | Bed assembly of magnetic resonance imaging device and magnetic resonance imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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