CN202459856U - Delay-controllable chargeable magnetic field stimulator - Google Patents
Delay-controllable chargeable magnetic field stimulator Download PDFInfo
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- CN202459856U CN202459856U CN2012200101329U CN201220010132U CN202459856U CN 202459856 U CN202459856 U CN 202459856U CN 2012200101329 U CN2012200101329 U CN 2012200101329U CN 201220010132 U CN201220010132 U CN 201220010132U CN 202459856 U CN202459856 U CN 202459856U
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Abstract
The utility model provides a delay-controllable chargeable magnetic field stimulator, wherein a high voltage charging power supply is connected with a controllable delay unit, and also connected with a high voltage energy storage capacitor in parallel to form a high voltage charging circuit. When human body electrophysiology signals are detected without using detection devices such as auxiliary electromyogram induced potentiometer and electroencephalogram devices, etc., the delay charging circuit can be set with no a delay, thereby furthest playing the effect of the magnetic field stimulator; and when it is necessary to detect the human body electrophysiology signals, the delay time of the delay circuit can be controlled and adjusted according to the characteristics of the electrophysiology signals to be detected, thereby preventing the electrophysiology signals to be detected from being influenced by high voltage raid charging. The delay charging time can be adjusted according to the parameters such as the transmission time of the electrophysiology signals to be detected, etc., such that the electrophysiology signals to be detected can be prevented from being influenced by high voltage rapid charging; and the delay-controllable chargeable magnetic field stimulator has the characteristics of being free of pain, being small in side-effect, being safe and lossless, and being good in repeatability, etc.
Description
Technical field
This utility model relates to a kind of magnetic field stimulator, the magnetic field stimulator that particularly a kind of novel controlled time-delay is charged.
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 are with 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 clinical neurology, neural rehabilitation and spiritual psychology field, sure value arranged for medical diagnosis on disease, therapeutic evaluation, prognosis judgement and disease treatment aspect.
Magnetic field stimulator is according to the Faradic electricity magnetic induction principle, charges to storage capacitor with high direct voltage, discharges 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, makes the transmembrane potential depolarization of nerve fiber; Produce action potential, thereby cause that neurocyte is excited, muscle contraction; Hormone secretion touches a series of biological effects such as prominent modulation.
Clinically, magnetic field stimulator combines with checkout facilities such as electromyogram evoked potentuial measuring system and electroencephalograms, can study contact and conduction between the location, drawing, functional areas in various function of nervous system district.Be usually used in detecting Motion Evoked Potential (MEP), maincenter movement conduction time (CMCT), movement threshold (MT), maincenter quiescent stage (SP), motor cortex irritability etc., significant to diagnosis, evaluation and the monitoring of central nervous system disease.
Checkout facilities such as electromyogram evoked potentuial measuring system and electroencephalogram belong to electrophysiological checkout facility.Because the electricity physiological signal of human body is generally all very faint, so checkout facility must have higher sensitivity, and sensitivity is high more, also just introduces detection system disturbing more easily.If under strong noise background, tend to flood signal, be to measure to carry out.
The bonded operation principles of checkout facility such as magnetic field stimulator and electromyogram evoked potentuial measuring system and electroencephalogram: magnetic field stimulator sends a synchronizing signal when single stimulates; Simultaneously, checkout facilities such as electromyogram evoked potentuial measuring system and electroencephalogram are just in time gathered the electricity physiological signal of human body under the magnetic field stimulator synchronizing signal.Magnetic field stimulator can charge to high-voltage energy storage capacitor after accomplishing once stimulation at once, because charging process is the high pressure quick charge, so can produce certain interference to environment on every side.This interference can influence the detection of human body electricity physiological signal, under serious situation, can directly cause not detect the electricity physiological signal of human body.
The utility model content
After single stimulates, at once the high-voltage capacitance quick charge is produced interferential problem to electrophysiologicalsignal signal detection to magnetic field stimulator, this utility model provides a kind of magnetic field stimulator of controlled time-delay charging.
This utility model is to solve the problems of the technologies described above the technical scheme of being taked to be: a kind of magnetic field stimulator of controlled time-delay charging, and it comprises high voltage charging power supply, high-voltage energy storage capacitor, reverse fly-wheel diode, reverse-blocking tetrode thyristor and stimulating coil; Wherein the positive pole by high-voltage energy storage capacitor connects the anode of reverse-blocking tetrode thyristor and the negative electrode of reverse fly-wheel diode; After being connected, the anode of the negative electrode of reverse-blocking tetrode thyristor and reverse fly-wheel diode connects stimulating coil again; Constitute a series loop and get back to the negative pole of high-voltage energy storage capacitor, constitute the discharge circuit of high-voltage energy storage capacitor inductance coil; It is characterized in that: described high voltage charging power supply connects controlled delay unit, and the parallel high voltage storage capacitor is formed the high-voltage charging circuit again.
Press such scheme, described controlled delay unit is made up of 555 intervalometers and peripheral circuit thereof, and controlled reference time delay is 0-1s.
The operation principle of this utility model is: in the time need not assisting checkout facilities such as electromyogram evoked potentuial measuring system and electroencephalogram to carry out the human body electrophysiologicalsignal signal detection, delayed charging circuit can be set do not delay time, bring into play the effect of magnetic field stimulator to greatest extent; And in needs human body electricity physiological signal, can make electricity physiological signal to be detected avoid the influence of high pressure quick charge according to the delay time of the controlled adjustment delay circuit of the characteristics of electricity physiological signal to be detected.
The beneficial effect of this utility model is: the time that can adjust the time-delay charging according to isoparametric difference of electricity physiological signal transmission time to be detected; Make electricity physiological signal to be detected not receive the influence of high pressure quick charge, have characteristics such as no pain, few side effects, safety and nondestructive, good reproducibility.
Description of drawings
Below in conjunction with accompanying drawing and embodiment this utility model is further specified.
Fig. 1 is the circuit theory diagrams of traditional magnetic field stimulator.
Fig. 2 is the circuit theory diagrams of this utility model.
Fig. 3 is the delay circuit schematic diagram.
Among the figure: 1. high voltage charging power supply, 2. high-voltage energy storage capacitor, 3. reverse fly-wheel diode, 4. reverse-blocking tetrode thyristor, 5. stimulating coil, 6. controlled delay unit.
The specific embodiment
Fig. 1 is the circuit theory diagrams of traditional magnetic field stimulator; Form complete high-voltage charging circuit by high voltage charging power supply 1 parallel high voltage storage capacitor 2; The anode and fly-wheel diode 3 negative electrodes that connect reverse-blocking tetrode thyristor 4 by the positive pole of high-voltage capacitance; Connect magnetic stimulation coil 5 again, constitute the negative pole that storage capacitor 2 is got back in a series loop, form the discharge circuit of high-voltage energy storage capacitor stimulating coil.
Fig. 2 is the circuit theory diagrams of this utility model, connects controlled delay unit 6 by high voltage charging power supply 1, and parallel high voltage storage capacitor 2 is formed complete high-voltage charging circuit again; The anode and fly-wheel diode 3 negative electrodes that connect reverse-blocking tetrode thyristor 4 by the positive pole of high-voltage capacitance; After being connected, the anode of the negative electrode of reverse-blocking tetrode thyristor 4 and reverse fly-wheel diode 3 connects magnetic stimulation coil 5 again; Constitute a series loop and get back to the negative pole of storage capacitor 2, form the discharge circuit of high-voltage energy storage capacitor stimulating coil.
Controlled delay unit 6 is made up of 555 intervalometers and peripheral circuit thereof; As shown in Figure 3; Its delay time is by the charge constant decision of R2 and C1, and the capacitance of adjustment R2 resistance value or adjustment C1 just can change delay time, and the delay time of this delay unit can adjustment continuously between 0～1s.
Claims (2)
1. the magnetic field stimulator of a controlled time-delay charging, it comprises high voltage charging power supply (1), high-voltage energy storage capacitor (2), reverse fly-wheel diode (3), reverse-blocking tetrode thyristor (4) and stimulating coil (5); Wherein the positive pole by high-voltage energy storage capacitor (2) connects the anode of reverse-blocking tetrode thyristor (4) and the negative electrode of reverse fly-wheel diode (3); After being connected, the anode of the negative electrode of reverse-blocking tetrode thyristor (4) and reverse fly-wheel diode (3) connects stimulating coil (5) again; Constitute a series loop and get back to the negative pole of high-voltage energy storage capacitor (2), constitute the discharge circuit of high-voltage energy storage capacitor inductance coil; It is characterized in that: described high voltage charging power supply (1) connects controlled delay unit (6), and parallel high voltage storage capacitor (2) is formed the high-voltage charging circuit again.
2. the magnetic field stimulator of controlled time-delay charging according to claim 1, it is characterized in that: described controlled delay unit (6) is made up of 555 intervalometers and peripheral circuit thereof, and controlled reference time delay is 0-1s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200101329U CN202459856U (en) | 2012-01-10 | 2012-01-10 | Delay-controllable chargeable magnetic field stimulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200101329U CN202459856U (en) | 2012-01-10 | 2012-01-10 | Delay-controllable chargeable magnetic field stimulator |
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| Publication Number | Publication Date |
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| CN202459856U true CN202459856U (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012200101329U Expired - Lifetime CN202459856U (en) | 2012-01-10 | 2012-01-10 | Delay-controllable chargeable magnetic field stimulator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024001875A1 (en) * | 2022-07-01 | 2024-01-04 | 上海微创惟美医疗科技(集团)有限公司 | Magnetic-pulse treatment device and detection method thereof |
-
2012
- 2012-01-10 CN CN2012200101329U patent/CN202459856U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024001875A1 (en) * | 2022-07-01 | 2024-01-04 | 上海微创惟美医疗科技(集团)有限公司 | Magnetic-pulse treatment device and detection method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 430206 hi tech medical equipment Park, 818 hi tech Avenue, East Lake hi tech Development Zone, Hubei, Wuhan Patentee after: Wuhan Aosaifu Medical Technology Co.,Ltd. Address before: 430074 Hubei province Wuhan city East Lake high tech Zone Dongxin Road Venture Street 1 building 10 floor Patentee before: Wuhan Aosaifu Medical Technology Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |