CN201286940Y - Via-skull magnetic field stimulator with multi stimulation coils - Google Patents
Via-skull magnetic field stimulator with multi stimulation coils Download PDFInfo
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- CN201286940Y CN201286940Y CNU2008201772574U CN200820177257U CN201286940Y CN 201286940 Y CN201286940 Y CN 201286940Y CN U2008201772574 U CNU2008201772574 U CN U2008201772574U CN 200820177257 U CN200820177257 U CN 200820177257U CN 201286940 Y CN201286940 Y CN 201286940Y
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Abstract
The utility model relates to a trans-cranial magnetic field stimulator with a plurality of stimulating coils, which comprises a high-voltage charging power supply, a current limiting resistor, an energy storage capacitor, a reverse continuous current diode, a silicon controlled switch, stimulating coils and a microcomputer controller. The transcranial magnetic field stimulator is characterized in that the high-voltage charging power supply, the current limiting resistor, the energy storage capacitor, the reverse continuous current diode, the silicon controlled switch and the stimulating coils form a plurality of stimulating modules, and the stimulating modules are connected in parallel to the microcomputer controller. One magnetic field stimulator can replace a plurality of magnetic field stimulators for use to realize the alternate stimulation of a plurality of the coils, and a plurality of parts obtain continuous stimulation controlled by programs, and if the number of the energy storage capacitor can be increased, besides the stimulation of the plurality of the coils by time sharing, the synchronous stimulation and the stimulation in pairs of the coils can be realized.
Description
Technical field
This utility model relates to a kind of novel transcranial magnetic field stimulator, and a kind of have a plurality of stimulating coils, and each stimulating coil output parameter is by the separate unit transcranial magnetic field stimulator of computer program control.
Background technology
Stimulate cerebral cortex to draw the Motion Evoked Potential of hand since doctor BARKER of Britain in 1985 with pulsed magnetic field, existing 20 years of development of transcranial magnetic field stimulating technology and universal.Magnetic stimulation is a kind of harmless painless contactless, and Non-Invasive stimulates brain nervus centralis and perineural a kind of technology.Be widely used in the research of neuroscience, clinical medical diagnosis, treatment and rehabilitation.Magnetic field stimulator is according to the Faradic electricity magnetic induction principle, charge to storage capacitor with high direct voltage, discharge to stimulating coil as electrical switch with controllable silicon, huge pulse current makes coil produce powerful pulsed magnetic field, and the magnetic field of transition can make the inner faradic current that produces of biological tissue on every side, make the transmembrane potential depolarization of nerve fiber, produce action potential, thereby cause neurocyte excitement, muscle contraction, hormone secretion touches a series of biological effects such as prominent modulation.
At present, the magnetic field stimulator on the market has 3 kinds of stimulus modelities, promptly single the stimulation, couple stimulation and repetitive stimulation, each magnetic field stimulator is made up of main frame and a stimulating coil, and main frame comprises the high-voltage charging part, storage capacitor, reverse-blocking tetrode thyristor and output parameter control circuit.Stimulator has only an output interface, connects a stimulating coil, can only stimulate a position at every turn.In order to contrast the bilateral brain function simultaneously, in order to study the contact and the interaction in brain difference in functionality district, need while or a plurality of different zones of successive stimulus brain, nerve monitoring in the anesthesia needs high frequency 4 (continuous 4 pulses, 1 millisecond at interval) magnetic stimulation, for brain and peripheral nerve are carried out the extensive magnetic stimulation in multi-section position, reinforcement is to the adjusting of brain function, according to the collaborative or antagonism of stimulus parameter to different parts, also need a plurality of coils that different parts is adopted different stimulus parameters, reach the purpose of quick diagnosis and treatment.In rehabilitation medicine,, can better reach the therapeutic effect that functional magnetic stimulates if stimulate spinal cord, trunk and limbs simultaneously with a plurality of field coils.
Reaching the multi-section position stimulates simultaneously, need purchase many magnetic field stimulators at present works simultaneously, even like this, many stimulators also are difficult to synchronization, sequencing work, and many electric energy big (every peak power is greater than 3000 watts) that magnetic field stimulator consumes, general hospital power supply is difficult to bear, and electrical network and electronic equipment are on every side had bigger electromagnetic interference.
Summary of the invention
In order to overcome the deficiency that existing magnetic field stimulator has only a stimulating coil, in order to stimulate different zones simultaneously in the multi-section position, in order to enlarge the scientific research scope that the multi-section position stimulates, shorten the clinical examination time, improve therapeutic effect, also in order to save the expense of many magnetic field stimulators of hospital's purchase, this utility model provides a kind of transcranial magnetic field stimulator with a plurality of stimulating coils, can select one or more stimulating coil output magnetic stimulations, a plurality of stimulating coils of Shi Yonging can be regulated the stimulus parameter (intensity of each stimulating coil respectively simultaneously, frequency, pulse number, intermittent time, the continued stimulus time-histories), can stimulate brain nervus centralis and peripheral nerve through cranium simultaneously, increase stimulation location, enlarged field stimulation, swashed the novel transcranial magnetic field stimulator of coil for scientific research and clinical diagnosis treatment provides a kind of thorniness.The technical scheme that its technical problem that solves this utility model adopts is:
A kind of transcranial magnetic field stimulator of a plurality of stimulating coils, it comprises high voltage charging power supply, current-limiting resistance, storage capacitor, reverse fly-wheel diode, reverse-blocking tetrode thyristor, stimulating coil and microcomputer controller, it is characterized in that: constitute stimulating unit by a reverse-blocking tetrode thyristor, a stimulating coil and a storage capacitor, be connected in current-limiting resistance and high voltage charging power supply end in parallel by N stimulating unit, N the shared storage capacitor of stimulating unit, the microcomputerized control end connects the trigger end of the reverse-blocking tetrode thyristor of each stimulating unit respectively, N ≧ 2.
The transcranial magnetic field stimulator of aforesaid a plurality of stimulating coils, it is characterized in that: N the stimulating unit that is connected in current-limiting resistance and high voltage charging power supply end in parallel, N reverse-blocking tetrode thyristor, a N stimulating coil and N storage capacitor are arranged, and each stimulating unit connects current-limiting resistance by a high-voltage semi-conductor switch.Under the management of microcomputer controller, flow to the charging of a plurality of storage capacitors by a high voltage charging power supply by the high-voltage semi-conductor switch wheel, by microcomputer controller synchronously or timesharing trigger a plurality of reverse-blocking tetrode thyristors, make a plurality of stimulating coils simultaneously or time-sharing work.
A kind of transcranial magnetic field stimulator of a plurality of stimulating coils, it comprises high voltage charging power supply, current-limiting resistance, storage capacitor, reverse fly-wheel diode, reverse-blocking tetrode thyristor, stimulating coil and microcomputer controller, it is characterized in that: high voltage charging power supply, current-limiting resistance, storage capacitor, reverse fly-wheel diode, reverse-blocking tetrode thyristor and stimulating coil are formed stimulating module, and a plurality of stimulating modules are connected in parallel on the microcomputer controller.
The transcranial magnetic field stimulator of aforesaid a plurality of stimulating coils is characterized in that: be connected in the shared stimulating coil of a plurality of stimulating modules on the microcomputer controller in parallel.
Can connect a plurality of storage capacitors and controllable silicon electrical switch,, reach synchronous stimulation by programme-control, the bigeminy couple stimulation, multi-joint stimulation and hyperfrequency stimulate.
Operation principle of the present utility model: present magnetic field stimulator is charged to storage capacitor by the high direct voltage charge power supply, by a controllable silicon (SCR) or IGBT, IGCT, electrical devices such as GTO are as electrical switch, the pulse current of a field coil of control produces the pulsed magnetic field of stimulation, can only stimulate a position at every turn.This utility model changes a plurality of reverse-blocking tetrode thyristors that are connected in parallel into behind storage capacitor, control each silicon controlled triggering and conducting respectively by micro computer, realizes continuous in turn or intermittent stimulation of a plurality of stimulating coils.This is a kind of circuit structure that a kind of thorniness swashs coil timesharing continued stimulus, can satisfy the needs that thorniness swashs coil multi-section position timesharing continued stimulus, but this method can not make the output synchronously simultaneously of a plurality of stimulating coils, if each stimulating coil is output in turn, the output frequency of n stimulating coil has only original 1/n.When being 100Hz for present magnetic field stimulator highest frequency, if take turns to operate simultaneously with 5 coils, the stimulus frequency of each stimulating coil has only 20Hz.For not requiring that altofrequency and synchronous fully multi-thread circle stimulate is a kind of simple, economic, practical way.
Reaching multi-thread completely circle stimulates simultaneously, each stimulating coil can timesharing in turn output can export synchronously again, and can keep the highest output frequency, the reverse-blocking tetrode thyristor that requires each stimulating coil to connect will have independently high voltage charging power supply and storage capacitor, also can be by a high voltage charging power supply with a plurality of high-voltage semi-conductor switch I GBT as switch, stimulating tempus intercalare, to a plurality of storage capacitor wheel current charges, each electric capacity charging voltage is controlled by microcomputer program, realizes that the stimulus parameter of each stimulating coil is independent adjustable.Can not increase the peak power of equipment, the utilization rate of power supply and power factor can increase.Two shortcomings that magnetic field stimulator uses peak power to be multiplied have simultaneously been overcome.
In addition,, two intermittent times between the pulse be can regulate arbitrarily, the irritability of neurocyte, physical signs such as refractory stage and supranormal period detected with this if two or more storage capacitors are connected on the stimulating coil by controllable silicon.The needs that 4 rules stimulate in realizing anaesthetizing, if a plurality of (n) electric capacity discharges to a stimulating coil in turn, then the output frequency of the train of pulse of this stimulating coil can increase n doubly.
The output mode of a plurality of magnetic stimulation coils can be controlled by microcomputer program except stimulus parameter is independently adjustable, adopts one and/or the output of several coil, and does not need whole magnetic stimulation coils that output is all arranged.
The beneficial effects of the utility model are: alternative many magnetic field stimulators of magnetic field stimulator use, realize that a plurality of stimulating coils stimulate in turn, make the multi-section position obtain successive programme controlled stimulation, if increase the quantity of storage capacitor, except multi-thread circle timesharing stimulates, can also stimulate couple stimulation synchronously by multi-thread circle.If when a plurality of storage capacitors were connected on a coil output by controllable silicon, the stimulus frequency of this stimulating coil can improve n doubly.So this utility model can select one or several stimulating coil to export simultaneously, stimulate when not only having realized the multi-section position, and increased the stimulus modelity and the stimulus frequency of single coil, increased the range of application of magnetic stimulation.
Description of drawings
Fig. 1 is the fundamental diagram of present unicoil magnetic field stimulator.
Fig. 2 is 1: one high voltage charging power supply of embodiment of the present utility model and a storage capacitor, and thorniness in parallel swashs the coil timesharing circuit theory diagrams of output in turn.
Fig. 3 is 2: one high voltage charging power supplies of embodiment of the present utility model, and to many electric capacity chargings, thorniness swashs coil output circuit schematic diagram respectively.
Fig. 4 is embodiment 3 of the present utility model: a plurality of high voltage charging power supplies, storage capacitor and thyristor controlled multi-thread circle be the stimulation circuit schematic diagram synchronously or in turn.
Fig. 5 is embodiment 4 of the present utility model: a plurality of high voltage charging power supplies, storage capacitor and SCR control are to the circuit theory diagrams of a stimulating coil output.
The specific embodiment
Below in conjunction with drawings and Examples this utility model is further specified.
The explanation of labelling among the figure: 1-high voltage charging power supply, 2-current-limiting resistance, 3-storage capacitor, 4-oppositely fly-wheel diodes, 5-reverse-blocking tetrode thyristor, 6-stimulating coil, 7-microcomputer controller, 8-high-voltage semi-conductor switch.
Connect the typical circuit figure of a stimulating coil among Fig. 1 for a magnetic field stimulator of prior art, connect charging current limiter resistance 2 by high voltage charging power supply 1, storage capacitor 3 in parallel is again formed complete high-voltage energy storage circuit, the anode and the fly-wheel diode 4 that connect reverse-blocking tetrode thyristor 5 by the positive pole of high-voltage capacitance, connect magnetic stimulation coil 6 again, form the negative pole that storage capacitor 3 is got back in a series loop.The height of regulating charging voltage by microcomputer controller 7 has determined the size of output energy, and microcomputer controller 7 follow procedures trigger reverse-blocking tetrode thyristor 5 simultaneously, controls it and turns on and off to change output frequency, train pulse width and intermittent time.
In embodiment of the present utility model 1 shown in Figure 2, only adopt a high voltage charging power supply 1, a plurality of reverse-blocking tetrode thyristors 5 in parallel, reverse fly-wheel diode 4 on storage capacitor 3, magnetic stimulation coil 6 of each reverse-blocking tetrode thyristor 5 serial connection, the triggering and conducting of the charging voltage of storage capacitor 3 and each reverse-blocking tetrode thyristor 5 is by microcomputer controller 7 programme-control, can realize that thorniness swashs the coil time-sharing work, in turn output.
In embodiment shown in Figure 32, also only adopt a high voltage charging power supply 1, by microcomputer controller 7 controls, do conductor switch IGBT8 to each storage capacitor 3 chargings by high pressure, and then control reverse-blocking tetrode thyristor 5, make output synchronously of a plurality of stimulating coils 6 or output in turn, the sort circuit structure, only used a high voltage charging power supply 1, realized that under the situation that does not increase peak power thorniness swashs coil and exports synchronously.
Among the embodiment 3 shown in Figure 4, the stimulating module that the circuit that is made of high voltage charging power supply 1, current-limiting resistance 2, storage capacitor 3, reverse-blocking tetrode thyristor 5, stimulating coil 6 among Fig. 1 is integrated is together in parallel, realize that under the management of same microcomputer controller 7 thorniness swashs the coil synchronous working or timesharing takes turns to operate, this circuit requirement mains-supplied capacity reaches more than the 6000W.
Among the embodiment 4 shown in Figure 5, export to same stimulating coil 6 by a plurality of reverse-blocking tetrode thyristors 5 by a plurality of storage capacitors 3 of microcomputer controller 7 controls, can be embodied as, multi-joint rule output output, hyperfrequency output, realize usual separate unit magnetic field stimulator the stimulus modelity that can't realize.
Claims (2)
1, a kind of transcranial magnetic field stimulator of a plurality of stimulating coils, it comprises high voltage charging power supply, current-limiting resistance, storage capacitor, reverse fly-wheel diode, reverse-blocking tetrode thyristor, stimulating coil and microcomputer controller, it is characterized in that: high voltage charging power supply, current-limiting resistance, storage capacitor, reverse fly-wheel diode, reverse-blocking tetrode thyristor and stimulating coil are formed stimulating module, and a plurality of stimulating modules are connected in parallel on the microcomputer controller.
2, the transcranial magnetic field stimulator of a plurality of stimulating coils according to claim 2 is characterized in that: be connected in the shared stimulating coil of a plurality of stimulating modules on the microcomputer controller in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201772574U CN201286940Y (en) | 2008-01-25 | 2008-01-25 | Via-skull magnetic field stimulator with multi stimulation coils |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008201772574U CN201286940Y (en) | 2008-01-25 | 2008-01-25 | Via-skull magnetic field stimulator with multi stimulation coils |
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| CNU2008200654316U Division CN201186109Y (en) | 2008-01-24 | 2008-01-24 | Transcranial magnetic stimulator with multiple stimulating coils |
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| CN201286940Y true CN201286940Y (en) | 2009-08-12 |
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| CNU2008201772574U Expired - Fee Related CN201286940Y (en) | 2008-01-25 | 2008-01-25 | Via-skull magnetic field stimulator with multi stimulation coils |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106075730A (en) * | 2016-06-07 | 2016-11-09 | 成都信息工程大学 | A kind of electromagnetic excitation method realizing time-scale extension with multiple activation source class connection |
| CN106823148A (en) * | 2017-01-03 | 2017-06-13 | 江苏德长医疗科技有限公司 | The synchronous trigger control method of multiple stimulators in wireless network |
| CN109276814A (en) * | 2018-10-31 | 2019-01-29 | 北京大学（天津滨海）新代信息技术研究院 | Multi-channel stimulation system and method for transcranial magnetic stimulation |
| CN109701161A (en) * | 2018-12-13 | 2019-05-03 | 新乡医学院 | A method of stimulation brain motor cortex is twitched |
| CN110193143A (en) * | 2019-04-19 | 2019-09-03 | 北京大学（天津滨海）新一代信息技术研究院 | A kind of transcranial magnetic stimulation system and method |
| CN112755396A (en) * | 2021-01-21 | 2021-05-07 | 武汉依瑞德医疗设备新技术有限公司 | Transcranial magnetic stimulation system |
-
2008
- 2008-01-25 CN CNU2008201772574U patent/CN201286940Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106075730A (en) * | 2016-06-07 | 2016-11-09 | 成都信息工程大学 | A kind of electromagnetic excitation method realizing time-scale extension with multiple activation source class connection |
| CN106075730B (en) * | 2016-06-07 | 2018-06-12 | 成都信息工程大学 | It is a kind of to join the electromagnetic excitation method for realizing time-scale extension with multiple activation source level |
| CN106823148A (en) * | 2017-01-03 | 2017-06-13 | 江苏德长医疗科技有限公司 | The synchronous trigger control method of multiple stimulators in wireless network |
| CN109276814A (en) * | 2018-10-31 | 2019-01-29 | 北京大学（天津滨海）新代信息技术研究院 | Multi-channel stimulation system and method for transcranial magnetic stimulation |
| CN109701161A (en) * | 2018-12-13 | 2019-05-03 | 新乡医学院 | A method of stimulation brain motor cortex is twitched |
| CN109701161B (en) * | 2018-12-13 | 2023-05-12 | 新乡医学院 | Method for stimulating cerebral motor cortex twitch |
| CN110193143A (en) * | 2019-04-19 | 2019-09-03 | 北京大学（天津滨海）新一代信息技术研究院 | A kind of transcranial magnetic stimulation system and method |
| CN110193143B (en) * | 2019-04-19 | 2023-06-09 | 天津博雅信息科技有限公司 | Transcranial magnetic stimulation system and method |
| CN112755396A (en) * | 2021-01-21 | 2021-05-07 | 武汉依瑞德医疗设备新技术有限公司 | Transcranial magnetic stimulation system |
| CN112755396B (en) * | 2021-01-21 | 2023-03-24 | 武汉依瑞德医疗设备新技术有限公司 | Transcranial magnetic stimulation system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20130125 |