CN206659806U - Radio frequency coil assemblies and magnetic resonance system - Google Patents
Radio frequency coil assemblies and magnetic resonance system Download PDFInfo
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- CN206659806U CN206659806U CN201621280506.3U CN201621280506U CN206659806U CN 206659806 U CN206659806 U CN 206659806U CN 201621280506 U CN201621280506 U CN 201621280506U CN 206659806 U CN206659806 U CN 206659806U
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Abstract
It the utility model is related to medical instruments field, more particularly to radio frequency coil assemblies, it includes radio-frequency coil, a fingerprint capturer, two timing modules and a memory, the fingerprint capturer is connected to two timing modules and the memory, the timing module includes the first timing module and the second timing module, first timing module and second timing module are all connected to the radio-frequency coil and the memory, the information and the clocking information of first timing module and the second timing module of the memory storage fingerprint capturer collection.The radio frequency coil assemblies are capable of the accident-free duration of statistical coil, and can collect the accurate scan number of the different parts of different patients.The utility model also provides a kind of magnetic resonance system.
Description
【Technical field】
It the utility model is related to medical instruments field, more particularly to radio frequency coil assemblies and magnetic resonance system.
【Background technology】
With the rapid development of magnetic resonance (MR) imaging technique, the essential radio-frequency coil in mr imaging technique
Technology also obtain very big progress.Phased-array surface coil pairs as receiving coil is even more to be widely used in each position of human body
Scanning, such as head, belly, backbone, and shoulder joint, ankle arthrosis, the position such as wrist joint.
In the design requirement of radio-frequency coil, the angle verified from product quality is, it is necessary to define the average nothing of a coil
Failure usage time (MTBF, i.e. mean time between failure), so as to judge that a coil can be more with normal use
Long, so as to the design reference important to the offer such as former parts selection, reliability design.Among the use actual from radio-frequency coil,
Effectively counted it is difficult to begin to use after being dispatched from the factory to a coil to the time broken down, at present, can only be according to a line
The time of making the product of circle and the general reckoning reported the time for repairment, carry out its usage time of user, but because each coil is in hospital
Frequency of usage is different, it is difficult to accurately obtains the real work time of coil.
In another aspect, currently for the scanning distribution situation of each patient's different parts, an accurately system is lacked
How many scanning ratio are occupied at each positions such as meter, such as head, neck, belly, backbone, shoulder, wrist, ankle, mammary gland respectively,
In terms of hospital, due to the different patients faced daily and the situation of different scanning portions, it is less susceptible to obtain every kind of radio frequency line
Enclose the accurate scan number in the different parts of different patients.So as to the clinical data analysis of hospital and the health service of patient
Instruct, cause the missings of data, the clinical data management and analysis of the missings of these data for hospital bring difficulty.
【The content of the invention】
In order to overcome above mentioned problem, the utility model proposes a kind of radio frequency line with finger print collecting function and clocking capability
Coil assembly and magnetic resonance system.
The utility model solves a kind of technical scheme that above-mentioned technical problem provides：A kind of radio frequency coil assemblies are provided,
Including radio-frequency coil, a fingerprint capturer, two timing modules and a memory, the fingerprint capturer are connected to two timing
Module and the memory, the timing module include the first timing module and the second timing module, first timing module
The radio-frequency coil and the memory are all connected to second timing module, the memory storage fingerprint capturer is adopted
The information of collection and the clocking information of first timing module and the second timing module.
Preferably, the radio-frequency coil includes diode, and the radio-frequency coil with preset frequency receive current signal and
Voltage signal, make the diode current flow/closing.
Preferably, the current signal and alternating voltage signal work.
Preferably, the current signal triggers the work of the first timing module, starts timing, and chronometric data storage is arrived into institute
State in memory.
Preferably, the voltage signal triggers the work of the second timing module, starts timing, and chronometric data storage is arrived into institute
State in memory.
Preferably, the memory includes accumulator, and the accumulator unites the second timing module of the first timing mould sum
The time of meter is summed into the single sweep operation time.
Preferably, the accumulator, which adds up the time of Multiple-Scan, forms the scanning total time of single sweep object, institute
State single sweep operation time, the scanning total time and the fingerprint packing of fingerprint capturer collection and be stored in the memory.
Preferably, the radio frequency coil assemblies further comprise detuned circuit, the detuned circuit have the state that enables and
Disabled status, when the current signal works, the detuned circuit is in and enables state；It is described during the voltage signal work
Detuned circuit is in disabled status.
Preferably, the fingerprint capturer, the first timing module, the second timing module and the memory are no magnetic member
Part or weak magnetic element.
The utility model solves the another technical scheme that above-mentioned technical problem provides：A kind of magnetic resonance system is provided, wrapped
Radio-frequency sending coil, RF receiving coil and controller are included, the RF receiving coil is any of the above-described radio frequency coil assemblies, or
Person
The radio-frequency sending coil is above-mentioned some radio frequency coil assemblies；
The controller sends voltage signal and current signal according to certain pulse frequency, and the current signal triggering is wherein
One timing module timing, the voltage signal triggers another timing module timing, and chronometric data storage is arrived into memory.
Compared with prior art, the radio frequency coil assemblies are by setting fingerprint capturer and two timing modules, can be with
Count the sweep time that each patient of each RF receiving coil uses, you can obtain the scanned all trouble of RF receiving coil
Person's usage time, therefore the real working time of RF receiving coil can be obtained, the quality analysis for product and checking energy
Play a part of truly verifying, the selection and follow-up design simultaneously for component bring important directive significance.Meanwhile
There are the scanning patient populations of all RF receiving coils, you can obtain the statistics of each radio-frequency coil frequency of usage of a hospital
Distribution, so as to obtain the frequency of usage distribution of all scanning patient's different scanning portions, the clinical data of hospital can be improved, from
And the health control for hospital provides important reference frame.
【Brief description of the drawings】
Fig. 1 is the utility model magnetic resonance system operation principle schematic diagram；
Fig. 2 is the circuit diagram of the utility model magnetic resonance system detuned circuit；
Fig. 3 is the RF receiving coil structural representation of the utility model magnetic resonance system；
【Embodiment】
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only used for explaining
The utility model, it is not used to limit the utility model.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
The relative position being only limitted in given view, rather than absolute position.
In addition, and it can not be managed in the utility model such as relating to the description of " first ", " second " etc. is only used for describing purpose
Solve to indicate or implying its relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " the
One ", at least one this feature can be expressed or be implicitly included to the feature of " second ".It is " more in description of the present utility model
It is individual " it is meant that at least two, such as two, three etc., unless otherwise specifically defined.
Referring to Fig. 1, be the operation principle schematic diagram of the utility model magnetic resonance system 100, the magnetic resonance system 100
Including spectrometer terminal 101, controller 102, DAC module 103, ADC 104, radio-frequency modulations module 105, radio frequency amplifier
106th, radio-frequency sending coil 20, RF receiving coil 10, preamplifier 107, quadrature demodulator 108 and image reconstruction module
109.The controller 102, DAC module 104, radio-frequency modulations module 105, radio frequency amplifier 106 and radio-frequency sending coil 20 are common
With composition transmitting circuit, RF receiving coil 10, preamplifier 107, quadrature demodulator 108, ADC 104 and image weight
Model block 109 and form receiving circuit, when the magnetic resonance system 100 works, transmitting circuit works first, and target is completed to swash
Encourage, such as the head of patient, neck, belly, backbone, shoulder, wrist etc., after excitation, receiving circuit work, receive target
Signal, for example, the proton signal in tissue, is handled by receiving circuit, finally shown correspondingly in spectrometer terminal 101
Pattern, it will be understood that the spectrometer terminal 101 includes input equipment, such as mouse, keyboard, output equipment, such as shows
Device, and some interfaces, the signal transduction of receiving circuit finally show corresponding figure over the display to spectrometer terminal 101
Case.
Specifically, the controller 102 is connected to the spectrometer terminal 101, and the spectrometer terminal 101 sends out numeral
Signal, controller 102 controls DAC module 103 to complete conversion of the data signal to analog signal, and module by signal is divided into two
Road, is sent to radio-frequency modulations module 105 all the way, and another way is supplied to gradient coil (not shown)；It is sent to radio-frequency modulations module
105 arrival radio-frequency sending coil 20, the work under main field of radio-frequency sending coil 20 after the amplification of radio frequency amplifier 106 all the way
Make, incentives target, such as the head of patient, neck, belly, backbone, shoulder, wrist etc., and target is produced magnetic resonance signal,
Such as proton signal, the magnetic resonance signal are received by RF receiving coil 10, passed to after the amplification of preamplifier 107
Quadrature demodulator 108, after the processing of quadrature demodulator 108, conversion of the analog signal to data signal is completed from ADC 104,
The reconstruction of image is carried out by image reconstruction module 109, finally passes to spectrometer terminal 101, and over the display corresponding to display
Image.
The magnetic resonance system 100 further comprises detuned circuit 110, the RF receiving coil 10 and off resonance electricity
The cooperating of road 110, referring to Fig. 2, the detuned circuit 110 includes first input end 1101, the second input 1103, resonance
Inductance 1105, diode 1107 and off resonance electric capacity 1109, the resonant inductance 1105 connected with the diode 1107 after with
The off resonance electric capacity 1109 is in parallel, and passes through the input 1103 of first input end 1101 and second and RF receiving coil 10
An interior electric capacity is linked into the RF receiving coil 10 in parallel.Second input 1103 is grounded.
The detuned circuit 110 is controlled by two signals, is current signal (I signal) and voltage signal (V letters respectively
Number), if current signal is weak current, the voltage signal is negative voltage, and certainly, setting for signal can be because equipment produces not
Same and different settings.When current signal works, the Low ESR of diode 1107 conducting, detuned circuit 110 works, then radio frequency reception
Coil 10 is in off resonance state, not reception signal；When voltage signal works, the high impedance of diode 1107 is closed, detuned circuit
110 do not work, then RF receiving coil 10 is in resonant condition, reception signal.
Please continue to refer to Fig. 3, for the structural representation of the RF receiving coil 10, the RF receiving coil 10 includes
One receiving coil 11, a fingerprint capturer 13, two timing modules 15 and a memory 17.The receiving coil 11 is shown in Fig. 2
Receiving coil, the fingerprint capturer 13 are connected to two timing modules 15 and the memory 17, the timing module 15
Including the first timing module 151 and the second timing module 153, first timing module 151 and second timing module
153 are all connected to the detuned circuit 110 and the memory 17, and the memory 17 stores what fingerprint capturer 13 gathered
The clocking information of finger print information and the timing module 153 of first timing module 151 and second, the memory 17 and the spectrum
The data of instrument terminal 101 connect.
The fingerprint capturer 13, the first timing module 151, the second timing module 153 and the memory 17 are nothing
Magnetic cell, or weak magnetic element, can take adequate shielding measure if necessary, to prevent the work to RF receiving coil 10 from causing
Interference.
The operation principle of the RF receiving coil 10 is：When patient needs to carry out radio-frequency coil scanning, patient is in institute
State fingerprint capturer 13 and carry out fingerprint characteristic collection, fingerprint capturer 13 gathers the fingerprint feature information of patient, and is stored in institute
State in memory 17.
When first patient scan for the first time, the radio-frequency sending coil 20 is started working, now the radio frequency
The detuned circuit 110 of receiving coil 10 works, and RF receiving coil 10 is in off resonance state, the off resonance electricity of RF receiving coil 10
The diode of road 110 is controlled by current signal (I signal), and I signal triggers the second timing module 153 and started working, and starts timing.
When the excitation of radio-frequency sending coil 20 finishes, the RF receiving coil 10 is started working, now RF receiving coil
10 diode of detuned circuit 110 is controlled by voltage signal (V signal), and detuned circuit 110 does not work, the RF receiving coil
10 are in resonant condition.Second timing module 153 stops timing, and the time of formation is T_p1_d1, i.e. second meter
When module 153 count be the RF receiving coil 10 not reception signal (closing) time.First timing module 151
The V signal is sensed, starts timing.The V signal stops timing when disappearing, and the time of formation is T_p1_r1, i.e. described
What the first timing module 151 counted is the time of the reception signal of RF receiving coil 10 (work).
The I signal and the V signal alternation, the I signal and V signal are by the controller 102 according to predetermined
Pulse frequency send.
When first timing module 151 and the second timing module timing 153 terminate, the shape of the first timing module 151
Into the time T_p1_d1 that is formed of time T_p1_r1 and the second timing module 153 stored after timing terminates and arrive memory 17
In, after memory 17 is arrived in storage, memory 17 includes accumulator 171, and the accumulator 171 is by time T_p1_r1 and time T_
P1_d1 adds up, and forms the total time T_p1_1 of present scan.
One patient can carry out continuous Multiple-Scan, when carrying out ith (i is positive integer) scanning, the first timing
The time that module 151 counts is T_p1_ri, and the time of the second timing module 153 statistics is T_p1_di, and the two is deposited by described
Accumulator 171 in reservoir 17, which is summed, obtains the time total time T_p1_i of ith scanning；
After same patient is scanned, the accumulator 171 in memory 17 can be carried out the time value scanned every time
It is cumulative, so as to obtain the total sweep time T_p1 of first patient, described T_p1, T_p1_i, T_p1_ri, T_p1_di and institute
The fingerprint feature information packing storage of the collection of fingerprint capturer 13 is stated, and is sent to spectrometer terminal 101.
When j-th of patient is scanned, equally fingerprint characteristic is first carried out on the RF receiving coil 10 to be used
Collection, is then scanned, and repeats above step, and memory 17 can recorded total sweep time T_p of j-th of patientj
And T_pj_i、T_pj_ ri and T_pj_ di, and stored with the fingerprint feature information packing of this patient.
After all patient scans, by the sweep time T_p1 to T_p of all patientsjIt is cumulative to obtain all trouble
The sweep time T_total of person.Simultaneous memory can also store the fingerprint feature information of j patient and total scanned trouble
The number of person.
In another embodiment, the radio-frequency sending coil 20 uses said structure, sets fingerprint capturer, memory
With the structure such as the first timing module and the second timing module, the RF receiving coil 10 is existing common receiving coil, institute
Stating radio-frequency sending coil includes some diodes.Difference is that the diode of the transmitting coil is controlled by three kinds of signals
Diode, V signal are that voltage signal, current signal (I signal) include I1Signal, I2Signal, when the V signal works, two
Pole pipe is closed, and radio-frequency sending coil 20 does not work, I1When signal works, radio-frequency sending coil, which is in, receives working condition, I2Signal
During work, radio-frequency sending coil is in transmitting working condition.The mode of operation of the radio-frequency sending coil 20 connects with the radio frequency
Take-up circle 10 is on the contrary, i.e. I signal (I1、I2Signal) work when radio-frequency sending coil 20 it is in running order, V signal work when penetrate
Frequency transmitting coil 20 does not work, but the not statistics of influence time, I signal (I1、I2Signal) the one of timing module meter of triggering
When, the working time of statistics radio-frequency sending coil 20；V signal triggers another timing module timing, counts radio-frequency sending coil 20
Shut-in time.
Compared with prior art, the radio-frequency sending coil 20 or RF receiving coil 10 are by setting fingerprint capturer 13
With two timing modules 15, the sweep time that each 10 each patient of RF receiving coil uses can be counted, you can penetrated
The scanned all patient's usage times of frequency receiving coil 10, therefore when can obtain the real work of RF receiving coil 10
Between, quality analysis and checking for product can be played a part of truly verifying, selection simultaneously for component and follow-up
Design bring important directive significance.Meanwhile there are the scanning patient populations of all RF receiving coils 10, you can obtain one
The statistical distribution of the individual each radio-frequency coil frequency of usage of hospital, so as to obtain using frequently for all scanning patient's different scanning portions
Secondary distribution, the clinical data of hospital can be improved, the health control hence for hospital provides important reference frame.
Preferred embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model,
Every any modification made within design of the present utility model, equivalent substitution and improvement etc. should be included in the utility model
Scope of patent protection within.
Claims (10)
1. a kind of radio frequency coil assemblies, it is characterised in that including radio-frequency coil, a fingerprint capturer, two timing modules and one are deposited
Reservoir, the fingerprint capturer are connected to two timing modules and the memory, and the timing module includes the first timing
Module and the second timing module, first timing module and second timing module are all connected to the radio-frequency coil and institute
State memory, the information of the memory storage fingerprint capturer collection and first timing module and the second timing module
Clocking information.
2. radio frequency coil assemblies as claimed in claim 1, it is characterised in that the radio-frequency coil includes diode, and described
Radio-frequency coil receives current signal and voltage signal with preset frequency, makes the diode current flow/closing.
3. radio frequency coil assemblies as claimed in claim 2, it is characterised in that the current signal and the alternating voltage signal
Work.
4. radio frequency coil assemblies as claimed in claim 3, it is characterised in that the current signal triggers the first timing module work
Make, start timing, and by chronometric data storage to the memory.
5. radio frequency coil assemblies as claimed in claim 4, it is characterised in that the voltage signal triggers the second timing module work
Make, start timing, and by chronometric data storage to the memory.
6. radio frequency coil assemblies as claimed in claim 5, it is characterised in that the memory includes accumulator, described cumulative
The time that second timing module of the first timing mould sum counts is summed into the single sweep operation time by device.
7. radio frequency coil assemblies as claimed in claim 6, it is characterised in that the accumulator adds up the time of Multiple-Scan
Form the scanning total time of single sweep object, the single sweep operation time, the scanning total time and the fingerprint capturer
The fingerprint packing of collection is stored in the memory.
8. radio frequency coil assemblies as claimed in claim 3, it is characterised in that the radio frequency coil assemblies further comprise off resonance
Circuit, the detuned circuit has the state and disabled status of enabling, and when the current signal works, the detuned circuit is in and opened
Use state；During the voltage signal work, the detuned circuit is in disabled status.
9. radio frequency coil assemblies as claimed in claim 1, it is characterised in that the fingerprint capturer, the first timing module,
Two timing modules and the memory are no magnetic cell or weak magnetic element.
10. a kind of magnetic resonance system, including radio-frequency sending coil, RF receiving coil and controller, it is characterised in that described to penetrate
Frequency receiving coil is any radio frequency coil assemblies of claim 1-9, or
The radio-frequency sending coil is any one of the claim 1-8 radio frequency coil assemblies；
The controller sends voltage signal according to certain pulse frequency and current signal, the current signal trigger one of them
Timing module timing, the voltage signal triggers another timing module timing, and chronometric data storage is arrived into memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621280506.3U CN206659806U (en) | 2016-11-24 | 2016-11-24 | Radio frequency coil assemblies and magnetic resonance system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621280506.3U CN206659806U (en) | 2016-11-24 | 2016-11-24 | Radio frequency coil assemblies and magnetic resonance system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206659806U true CN206659806U (en) | 2017-11-24 |
Family
ID=60357146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621280506.3U Active CN206659806U (en) | 2016-11-24 | 2016-11-24 | Radio frequency coil assemblies and magnetic resonance system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206659806U (en) |
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2016
- 2016-11-24 CN CN201621280506.3U patent/CN206659806U/en active Active
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