CN106075730B - It is a kind of to join the electromagnetic excitation method for realizing time-scale extension with multiple activation source level - Google Patents
It is a kind of to join the electromagnetic excitation method for realizing time-scale extension with multiple activation source level Download PDFInfo
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- CN106075730B CN106075730B CN201610407269.0A CN201610407269A CN106075730B CN 106075730 B CN106075730 B CN 106075730B CN 201610407269 A CN201610407269 A CN 201610407269A CN 106075730 B CN106075730 B CN 106075730B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N2/00—Magnetotherapy
- A61N2/004—Magnetotherapy specially adapted for a specific therapy
- A61N2/006—Magnetotherapy specially adapted for a specific therapy for magnetic stimulation of nerve tissue
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N2/00—Magnetotherapy
- A61N2/02—Magnetotherapy using magnetic fields produced by coils, including single turn loops or electromagnets
Abstract
A kind of electromagnetic excitation method for joining realization time-scale extension with multiple activation source level of the present invention, using low current as the exciting current of coil, and pass through quickly cut-out electric current and improve current changing rate to reduce exciting current amplitude so as to generate satisfactory transient electromagnetic field around coil, and the mode for cascading by using multiple coils and discharging successively extends the actuation duration, realize the expansion of actuation duration, the mode that the multiple coil is cascaded and discharged successively is completed for multiple coil bulk charges, then it discharges successively, or switched in charging process by the charge and discharge of coil for multiple coils, complete cycle electric discharge successively.The invention enables the electromagnetic field excitation system using low current as coil energizing current, realize effective expansion of single activation time, and implementation method it is simple and practicable, convenient for controlling or adjust.
Description
Technical field
The present invention relates to a kind of electromagnetic excitation methods, specifically, are related to one kind and realize that the time opens up with multiple activation source level connection
The electromagnetic excitation method of exhibition, the specifically application in medical instrument is the transcranial magnetic stimulation based on low current.
Background technology
Transient electromagnetic field is known as transcranial magnetic stimulation (Transcranial in the typical case of medical domain to be a kind of
Magnetic Stimulation, abbreviation：TMS technology).TMS is a kind of electrodeless stimulation form, it is to utilize excitation coil
It generates time-varying magnetic field and induces electric current in targeted tissue, reach stimulation excitable tissue purpose.When electric current flows through TMS excitation lines
During circle, time-varying magnetic field will be generated around it, this powerful and fast-changing magnetic field can penetrate human skin and skull etc.
Tissue is had an effect.It is to be found first by D ' Arsonval when observing mangneto phosphere within 1896 that nerve, which can be stimulated,
, in some time thereafter, Neural stem cell research is only limitted to mangneto flash of light.Brickford etc. is complete in nineteen sixty-five Neural stem cell
Rabbit, frog and when people observe that skeletal muscle is twitched, but due to not specific application purpose, further work is not opened
Exhibition.1985, Barker etc. used a compact magnetic coil under the pulse current driving less than 0.3Hz, almost painless, non-to invade
It stimulates normal brain cortex with entering, observes that hand muscle is twitched, motor cortex, which is recorded, in abductor of fifth finger with surface electrode induces
Current potential (MEPs), and the 11st brain electricity is attended with being shown in clinical nervous physiology conference to representative all over the world in London,
Encouraging result causes great sensation, is known as transcranial magnetic stimulation (Transcranial Magnetic after this method
Stimulation, TMS).Amassian in 1987 etc., nineteen ninety Cohen etc. are used respectively the experiment proves that different directions were placed
Stimulating coil causes different finger movements to corticocerebral effect.
Above application electromagnetic field excitation system generally use heavy current pulse is driven, to obtain the transient electromagnetic needed
.In order to obtain enough electromagnetic field intensities, excitation system driving current is big, pulse width is big, excitation system hardware circuit work(
Consumption is big, it is difficult to realize, and the application security that there is very big security risk, particularly medical domain is even more one and can not neglect
Depending on major issue.
For power consumption greatly and the problem of safety, the patent of Publication No. 102614592A is proposed replaces biography with low current
The working method for high current of uniting, the method although overcome power consumption and it is safe the problem of, but the low discharging current time is short, production
Often there is stimulation time deficiencies, the problem of so as to be not enough to cause expected nervous excitation, institute for raw transient electromagnetic field
To produce great limitation again in terms of medical curative effect.
Invention content
The purpose of the present invention is to solve the shortcomings of the prior art provide it is a kind of it is safe and reliable, stimulation time length it is a kind of with
Multiple activation source level connection realize time-scale extension electromagnetic excitation method, the present invention in transient electromagnetic field can stimulate the targets such as nerve
Medium and effectively extension actuation duration.
The present invention is achieved through the following technical solutions：It is a kind of to join the electromagnetic excitation side for realizing time-scale extension with multiple activation source level
Method using low current as the exciting current of coil, and passes through quickly cut-out electric current and improves current changing rate to reduce exciting current
So as to generate satisfactory transient electromagnetic field around coil, electromagnetic field excitation system cascades amplitude by using multiple coils
And the mode discharged successively extends the actuation duration, realizes the expansion of actuation duration.
A kind of electromagnetic excitation method for joining realization time-scale extension with multiple activation source level of the present invention, the multiple line
The mode that circle is cascaded and discharged successively refers to：Multiple coils of charging start electric discharge and equivalent extension electric discharge end time successively,
Its start time of discharging of n-th coil is t in i.e. multiple coilsas, electric discharge finish time be tae, the N+1 coil its electric discharge open
Moment beginning is tbs, electric discharge finish time be tbe, N is positive integer；The tbsLag behind tasAnd tbeLag behind tae。
A kind of electromagnetic excitation method for joining realization time-scale extension with multiple activation source level of the present invention, the n-th
The overlapping time of coil discharge duration and the N+1 coil discharge duration are tab, tab=tbs-tae；The tab﹥ 0,
That is tbsIn advance in tae。
A kind of electromagnetic excitation method for joining realization time-scale extension with multiple activation source level of the present invention, the n-th
The overlapping time of coil discharge duration and the N+1 coil discharge duration are tab, tab=tbs-tae；The tab=
0, i.e. tbsWith taeIt coincide.
A kind of electromagnetic excitation method for joining realization time-scale extension with multiple activation source level of the present invention, the n-th
The overlapping time of coil discharge duration and the N+1 coil discharge duration are tab, tab=tbs-tae；The n-th
It is t that coil discharge, which generates induced voltage free damping to zero time span in destination media,r, tr﹥ 0；The tab﹤ 0 and | tab
|≦tr。
A kind of electromagnetic excitation method for joining realization time-scale extension with multiple activation source level of the present invention, the n-th
Coil starts charging or completing to charge during electric discharge.
A kind of electromagnetic excitation method for joining realization time-scale extension with multiple activation source level of the present invention, the multiple line
The ending current that coil starts the initial current before electric discharge and terminates after electric discharge during circle is cascaded and discharged successively is perseverance
Constant current.
Suitable for a kind of electromagnetism for joining the electromagnetic excitation method for realizing time-scale extension with multiple activation source level of the present invention
Field excitation system, the electromagnetic field excitation system include the coil being connected with each other, coil driver, coil driver packet
Include the charging circuit being connect respectively with coil, discharge circuit.Charging circuit is connected with coil, discharge circuit and coils from parallel connection of coils.
Specifically, the charging circuit includes the charging diode, charging resistor, the charge switch that are sequentially connected in series with coil,
The discharge circuit includes being connected in parallel on the discharge resistance at coil both ends and the series circuit of discharge diode.
Preferably, the charge switch uses semiconductor switch device, the control pole of the semiconductor switch device and control
Signal circuit connection processed, the peak absorbing circuit is parallel to charge switch both ends, for inhibiting shadow of the spike to circuit
It rings.
Electromagnetic field excitation method of the present invention is by adjusting the resistance value in the inductance value and discharge circuit of coil
Discharge time is adjusted, by adjusting the parameter adjustment current changing rate of discharge period in discharge circuit.
Further, the coil driver further includes the peak absorbing circuit being connect with coil.
Further, the electromagnetic field excitation system further includes the control signal electricity being connect respectively with coil driver
Road, system protection circuit, electric power system, the coil driver, coil, control signal circuit, system protection circuit, power supply
System is equipped with more than one, and is also connect with the control signal circuit that coil connects one to one with control chip, controls core
Piece sends out control signal respectively by control signal circuit to corresponding coil, controls the sequential of signal by computer software
Delay procedure controls.Multiple control signal circuit can share a control chip.
Compared with prior art, the present invention haing the following advantages and advantageous effect：
(1) present invention is guaranteed using low current instead of traditional high current in terms of security performance；
(2) present invention solves the problems, such as time-scale extension using the cascade mode of coil so that during to the stimulation of destination media
Between it is sufficient；
(3) since the discharge period of coil each in the present invention can be different, although the initial current of each coil
All can be different for constant current but current value, although the ending current of each coil all can not for constant current current value
Together, so the present invention realizes that the concrete operations of actuation duration expansion are very flexible, limiting factor (s) is few, is easy to implement；
(4) its apparatus structure of electromagnetic field excitation system of the present invention is simple, light and handy portable.
Description of the drawings
Fig. 1 is the neural schematic diagram of simulation stimulation.
Fig. 2 be A condition when two neighboring coil in current attenuation time diagram.
Fig. 3 be B state when two neighboring coil in current attenuation time diagram.
Fig. 4 be C-state when two neighboring coil in current attenuation time diagram.
Fig. 5 is the overall system architecture schematic diagram of the present invention.
Fig. 6 is core circuit schematic diagram of the present invention.
Fig. 7 is the system program flow chart of the present invention.
Wherein：1-nerve, 2-n-th coil, 3-the N+1 coil, 4-coil driver, 5-coil, 6-
Control signal circuit, 7-system protection circuit, 8-electric power system, 9-control signal.
Specific embodiment
The present invention is described in further detail, but the implementation of the present invention is not limited to this with reference to embodiment.
In order to improve the safety of electric current transcranial magnetic stimulation, the high current that the present invention has abandoned traditional technology generally use is wide
Pulse excitation scheme, then using low current as the exciting current of excitation coil.According to the basic principle of electromagnetic induction, variation electricity
The raw changing magnetic field of miscarriage, electric current stimulation and the excitation coil current changing rate positive that variation magnetic field excites in destination media
It closes.The present invention is exactly that the principle is utilized, and the arteries and veins that change rate is small, amplitude is big is replaced with the pulse current that change rate is big, amplitude is small
Electric current is rushed, reaches identical effect of stimulation.
In practical applications, low current by coil often there are stimulation time it is insufficient the problem of, inventive solution
It is that the mode for cascading by using multiple coils and discharging successively extends the actuation duration, realizes the expansion of actuation duration.
Embodiment 1
By taking two coils cascade as an example：As shown in Figure 1, utilize electric current in cascade n-th coil 2, the N+1 coil 3
The transient magnetic field stimulation neuropeptide 11 that attenuation generates.
The overall system architecture schematic diagram of the present invention is as shown in figure 5, the system can be subdivided by a control chip 9 simultaneously
Two sets of identical systems of control, wherein set of system include coil driver 4 and are connect respectively with coil driver 4
Coil 5, control signal circuit 6, system protection circuit 7, electric power system 8.Wherein coil driver 4 includes going here and there with coil 5
The charging circuit of connection, the discharge circuit and peak absorbing circuit in parallel with coil 5, charging circuit, discharge circuit are respectively line
Circle 5 provides charging, discharge path, makes the electric current changed in coil 5, and then generate changing magnetic field.Control chip 9 be
DSP5509, in the course of work of system, control chip 9 will generate two path control signal, and control two systems respectively simultaneously,
The control signal is pulse signal, controls chip 9 that can also use the dsp chip or list of other models in practical applications
Piece machine, FPGA (programmable gate array).Control signal circuit 6 utilizes the switching for controlling 9 control coil driving circuit 4 of chip.System
Blanket insurance protection circuit 8 is mainly to overheat and the protection of overcurrent, when circuit system medium temperature spend high or electric current it is excessive when circuit system
It can be automatically closed, be stopped.Electric power system is 12V regulated power supplies, but the ripe skill such as switch can also be used in practical application
Mains are converted to the direct current needed for system work by art.
As shown in fig. 6, wherein power supply PWR is electric power system 8, power supply PWR is provided the core circuit of the present embodiment for system
12V regulated power supplies (to show its physical circuit in Fig. 6).5 overall system architecture schematic diagram coil 5 of coil L1 corresponding diagrams.Electricity
Hinder R6, diode D5, variable resistance VR2, resistance R11, diode D10, NMOS tube Q4, GND, diode D11, capacitance C4,
Diode D12, resistance R12 form coil driver 4, and wherein charging circuit includes the diode connected successively with coil L1
D5, variable resistance VR2, NMOS tube Q4, GND, wherein charge switch of the NMOS tube Q4 as coil driver 4, electric discharge electricity
Road includes being parallel to the series circuit being made of resistance R6, resistance R11, diode D10 at coil L1 both ends, peak absorbing circuit
It is made of diode D11, capacitance C4, diode D12, resistance R12, its role is to inhibit influence of the spike to circuit.
Control signal circuit 6 include signal input part, the optocoupler U4 being connect with signal input part and connect with optocoupler U4 by three poles
The push-pull output circuit that pipe Q5, triode Q6, triode Q7, resistance R17, resistance R18 are formed, wherein signal input part access
The pulse signal PAS of DSP5509 chips output-PULS, pulse signal PAS-PULS is input to push-pull output circuit through optocoupler U4,
The grid of NMOS tube Q4 in coil driver 4 is input to eventually by resistance R15, so as to control the drain electrode of NMOS tube Q4 and source
The on or off of pole, wherein optocoupler U4 play the role of signal input, output by the conversion of electricity-light-electricity, in addition optocoupler
It is mutually isolated between U4 input and output, and electric signal transmission has the characteristics that one-way, thus with good electrical isolation capabilities
And antijamming capability, and since the input terminal of photo-coupler belongs to the low-resistance element of current mode work, thus be total to very strong
Mould rejection ability, push-pull output circuit are mainly used for enhancing driving force.This example core circuit is in addition to part described above
System protection circuit 8, system protection circuit 8 are the protections of overcurrent and overheat, and the protection of whole system is realized by relay,
Since protection circuit belongs to mature technology, and the improvement of the present invention is unrelated with protection circuit, therefore details are not described herein again that protection is electric
The structure of road circuit.
The operation principle of this example circuit is, as the pulse signal PAS of DSP5509 chips output-When PULS is low level, light
Coupling U4 is connected, pulse signal PAS-PULS is input to push-pull output circuit amplification through optocoupler U4 and polarization reversion becomes high electricity
It is flat, the grid of NMOS tube Q4 is inputted later, since NMOS tube is high conducting metal-oxide-semiconductor, when its grid input signal is high level
It drains and source conduction, and such charging circuit is fully on, and coil L1 is started to charge up, when the pulse of DSP5509 chips output
Signal PAS-When PULS is high level, optocoupler U4 cut-offs, coil L1 starts to discharge by discharge circuit, current attenuation in coil L1
Transient electromagnetic field can be generated during variation.In addition, due to the time constant T=L/R of RL circuits, by adjusting the inductance of coil L1
Value and the resistance value of charging circuit can adjust the charging time, by adjusting the inductance value of coil L1 and the electricity of discharge circuit
Resistance value can adjust the discharge time.
It is specific that a kind of electromagnetic excitation method for joining realization time-scale extension with multiple activation source level of the present invention is given below
Current attenuation schematic diagram in implementation process in n-th coil 2, the N+1 coil 3.
As shown in Figure 2, Figure 3, Figure 4, symbol description is as follows in figure：
Ias：The initial current of n-th coil；
Iae：The ending current of n-th coil；
Ibs：The initial current of the N+1 coil；
Ibe：The ending current of the N+1 coil；
t0：Initial time；
tas：The n-th coil discharge time started；
tae：The n-th coil discharge end time；
tad：The n-th coil discharge duration；
tbs：The N+1 coil discharge time started；
tbe：The N+1 coil discharge end time；
tbd：The N+1 coil discharge duration；
t2：Terminate the time；
tab：N-th coil and the overlapping time of the N+1 each self discharge of coil, i.e. tab=tbs-tae；
tr：Recovery Time Objective.
The n-th coil and the N+1 coil are n-th in two adjacent discharge coils and same wheel discharge process
Coil first discharges, discharges after the N+1 coil.If the position of n-th coil and the N+1 coil among multiple coils,
(the i.e. t before n-th coil starts electric dischargeasThere may be multiple coils to complete to discharge before)；Similarly, in the N+1 coil
Start (i.e. t after dischargingbsLater), multiple coils may continue to start to discharge.
The Recovery Time Objective trRefer to：Some coil discharge simultaneously generates induced voltage in destination media, the sensing
The voltage time span of free damping to zero in destination media.The trIt is different and different with destination media and status.
First, it is generally the case that the electric current after coil discharge is 0, but is not absolutely required, as long as it keeps constant
.Secondly, the initial current of multiple coils is not required for unanimously, as long as respectively keeping constant.Moreover, n-th coil
Discharge period tadWith the N+1 coil discharge duration tbdIt does not require unanimously, visual design needs to adjust yet.
As shown in Fig. 2, t0﹤ tas﹤ tbs﹤ tae﹤ tbe﹤ t2, t at this timeab﹥ 0, i.e., when the electric current in n-th coil 2 starts to decay
When the N+1 coil 3 start to decay, n-th coil 2 decay after the N+1 coil 3 continue to decay, so can be real
The expansion of existing actuation duration.
As shown in figure 3, t0﹤ tas﹤ tbs=tae﹤ tbe﹤ t2, t at this timeab=0, i.e. electric current in n-th coil 2 first starts to decline
Subtract, when n-th coil 2 decay terminate while the N+1 coil 3 start to decay, the N+1 coil 3 continue decay one section when
Between after terminate, the expansion of actuation duration so can be realized.
As shown in figure 4, t0﹤ tas﹤ tae﹤ tbs﹤ tbe﹤ t2And t at this timeabCurrent attenuation in ﹤ 0, i.e. n-th coil 2 terminates
The electric current in the N+1 coil 3 starts to decay afterwards, and the expansion of actuation duration so can be realized.
In C-state as shown in Figure 4 in two neighboring coil on the basis of the time diagram of current attenuation, if meeting
“t0﹤ tas﹤ tae﹤ tbs﹤ tbe﹤ t2, tab﹤ 0 and | tab|≦tr", i.e. electric current in the N+1 coil 3 starts the time gap of attenuation
N-th coil 2 attenuation terminate time be less than or equal to n-th coil 2 electric discharge generate induced voltage in destination media from
By decaying to for zero time, then the effect of Persistent Excitation can be preferably realized.
When in n-th coil 2, the N+1 coil 3 electric current decay completion after, system starts to charge to it again,
And more than attenuation process is repeated again.
Two pulse signals PAS in above example-The sequential of PULS is by the program that has been previously set in DSP5509 chips
Control, by adjusting pulse signal PAS-The sequential of PULS can 5 charge and discharge of control coil at the time of and coil 5 between
Charge and discharge gap.
And so on, three, the cascades of four or even more a coils can be set as needed, and principle is same as above, and is realized more
It is prolonged to expand.
Embodiment 2
The present embodiment advanced optimizes on the basis of embodiment 1：Multiple coils of the present invention are cascaded and are put successively
The mode of electricity can be that multiple coils are discharged one by one after charging complete or multiple coils are in charging process
In cycle electric discharge carried out by the charge and discharge of coil switching.
By taking the adjacent windings that two are discharged successively after charging complete as an example：Specific system program flow chart such as Fig. 7
It is shown, clock is initialized first, i.e., is set as high level by two I/O mouthfuls connect on DSP5509 chips with control signal circuit
And the t that is delayed1It treats that system by two I/O mouthful is set as low level after stablizing, i.e., while charges to two coils, charging complete
High level is set as by first I/O mouthfuls, the coil 5 in first I/O mouthfuls of circuit connected starts current attenuation again later
And the transient magnetic field generated, the current attenuation in coil 5 in first I/O mouthful circuit connected are completed later again by second
A I/O mouthfuls is set as high level, and the coil 5 in second I/O mouthfuls of circuit connected starts current attenuation and the transition generated
Magnetic field, program turns again to init state and works into next round after the electric current in two coils 5 decays completion,
So constantly recycle the expansion that the actuation duration can be realized.
By taking two carry out the adjacent windings of cycle electric discharge in charging process by the charge and discharge of coil switching as an example：It is logical
Cross the two pulse signals that send out in software control control chip, setting is when wherein signal is set as high level all the way, another way
Signal is set as low level so that another coil charges during a coil discharge, i.e., it is real in a manner that two coils are complementary
The gapless cycle electric discharge successively one by one of existing coil.
The present embodiment other parts are same as Example 1, and so it will not be repeated.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is every according to
According to the present invention technical spirit above example is made any simple modification, equivalent variations, each fall within the present invention protection
Within the scope of.
Claims (10)
1. a kind of join the electromagnetic excitation method for realizing time-scale extension with multiple activation source level, using low current as the excitation of coil electricity
Stream, and pass through quickly cut-out electric current and improve current changing rate to reduce required exciting current amplitude, so as to around coil
Generate satisfactory transient electromagnetic field, it is characterised in that：Electromagnetic field excitation system cascades and successively by using multiple coils
The mode of electric discharge extends the actuation duration, realizes the expansion of actuation duration.
2. a kind of electromagnetic excitation method for joining realization time-scale extension with multiple activation source level according to claim 1, feature
It is：The mode that the multiple coil is cascaded and discharged successively refers to：Multiple coils of charging start electric discharge and equivalent prolong successively
The long discharge end time, i.e., its start time of discharging of n-th coil is t in multiple coilsas, electric discharge finish time be tae, N+
1 its start time of discharging of coil is tbs, electric discharge finish time be tbe, N is positive integer；The tbsLag behind tasAnd tbeLag
In tae。
3. a kind of electromagnetic excitation method for joining realization time-scale extension with multiple activation source level according to claim 2, feature
It is：The overlapping time of the n-th coil discharge duration and the N+1 coil discharge duration are tab, tab=
tbs-tae；The tab﹥ 0, i.e. tbsIn advance in tae。
4. a kind of electromagnetic excitation method for joining realization time-scale extension with multiple activation source level according to claim 2, feature
It is：The overlapping time of the n-th coil discharge duration and the N+1 coil discharge duration are tab, tab=
tbs-tae；The tab=0, i.e. tbsWith taeIt coincide.
5. a kind of electromagnetic excitation method for joining realization time-scale extension with multiple activation source level according to claim 2, feature
It is：The overlapping time of the n-th coil discharge duration and the N+1 coil discharge duration are tab, tab=
tbs-tae；It is t that the n-th coil discharge, which generates induced voltage free damping to zero time span in destination media,r, tr﹥
0；The tab﹤ 0 and | tab|≦tr。
6. a kind of electromagnetic excitation method for joining realization time-scale extension with multiple activation source level according to claim 1, feature
It is：After coil starts the initial current before electric discharge and terminates electric discharge during the multiple coil is cascaded and discharged successively
Ending current is constant current.
7. according to a kind of electromagnetic excitation side for joining realization time-scale extension with multiple activation source level of claim 1-6 any one of them
Method, it is characterised in that：The electromagnetic field excitation system includes the coil (5) being connected with each other, coil driver (4), and coil drives
Dynamic circuit (4) includes the charging circuit, the discharge circuit that are connect respectively with coil (5).
8. a kind of electromagnetic excitation method for joining realization time-scale extension with multiple activation source level according to claim 7, feature
It is：By adjusting the i.e. adjustable discharge time of the resistance value in the inductance value and discharge circuit of coil (5), by adjusting electric discharge
The parameter adjustment current changing rate of discharge period in circuit.
9. a kind of electromagnetic excitation method for joining realization time-scale extension with multiple activation source level according to claim 7, feature
It is：The coil driver (4) further includes the peak absorbing circuit being connect with coil (5).
10. a kind of electromagnetic excitation method for joining realization time-scale extension with multiple activation source level according to claim 7, feature
It is：The electromagnetic field excitation system further includes control signal circuit (6), the system being connect respectively with coil driver (4)
Protect circuit (7), electric power system (8), the coil driver (4), coil (5), control signal circuit (6), system protection
Circuit (7), electric power system (8) are equipped with more than one, and the control signal circuit (6) to connect one to one with coil (5) is also
It is connect with control chip (9), control chip (9) sends out control letter by control signal circuit (6) respectively to corresponding coil (5)
Number, the sequential of signal is controlled to be controlled by the delay procedure in computer software.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2089988U (en) * | 1991-01-16 | 1991-12-04 | 张立田 | Repeatedly dischararge type electronic igniter for petrol machine |
| CN201286940Y (en) * | 2008-01-25 | 2009-08-12 | 武汉依瑞德医疗设备新技术有限公司 | Via-skull magnetic field stimulator with multi stimulation coils |
| CN102614592A (en) * | 2012-04-13 | 2012-08-01 | 刘冀成 | Transient electromagnetic field excitation system for transcranial magnetic stimulation (TMS) in medical field |
| CN102727997A (en) * | 2012-06-25 | 2012-10-17 | 西安交通大学 | Double butterfly transcranial magnetic stimulation coil |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9849301B2 (en) * | 2014-01-15 | 2017-12-26 | Neuronetics, Inc. | Magnetic stimulation coils and ferromagnetic components for reduced surface stimulation and improved treatment depth |
-
2016
- 2016-06-07 CN CN201610407269.0A patent/CN106075730B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2089988U (en) * | 1991-01-16 | 1991-12-04 | 张立田 | Repeatedly dischararge type electronic igniter for petrol machine |
| CN201286940Y (en) * | 2008-01-25 | 2009-08-12 | 武汉依瑞德医疗设备新技术有限公司 | Via-skull magnetic field stimulator with multi stimulation coils |
| CN102614592A (en) * | 2012-04-13 | 2012-08-01 | 刘冀成 | Transient electromagnetic field excitation system for transcranial magnetic stimulation (TMS) in medical field |
| CN102727997A (en) * | 2012-06-25 | 2012-10-17 | 西安交通大学 | Double butterfly transcranial magnetic stimulation coil |
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