CN203556061U - Transcranial stimulation apparatus - Google Patents
Transcranial stimulation apparatus Download PDFInfo
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- CN203556061U CN203556061U CN201320623282.1U CN201320623282U CN203556061U CN 203556061 U CN203556061 U CN 203556061U CN 201320623282 U CN201320623282 U CN 201320623282U CN 203556061 U CN203556061 U CN 203556061U
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- 230000000638 stimulation Effects 0.000 title abstract description 32
- 230000006698 induction Effects 0.000 claims abstract description 61
- 238000011491 transcranial magnetic stimulation Methods 0.000 claims abstract description 19
- 230000004936 stimulating effect Effects 0.000 claims description 62
- 238000001914 filtration Methods 0.000 claims description 25
- 230000000694 effects Effects 0.000 abstract description 7
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Abstract
The utility model discloses a transcranial stimulation apparatus. The transcranial stimulation apparatus comprises a transcranial magnetic stimulation device and a transcranial direct current stimulation device, wherein the transcranial magnetic stimulation device comprises a stimulation coil provided with a through hole, and a power supply module used for supplying power to the stimulation coil; the transcranial direct current stimulation device comprises an induction coil fixed in the through hole, a control module connected with an output end of the induction coil, and electrode slices connected with an output end of the control module; and after the stimulation coil is powered on, the magnetic field generated by the stimulation coil penetrates through the induction coil and enables the induction coil to generate an induced electromotive force, and according to the induced electromotive force, the control module controls the electrode slices to output a direct current. The transcranial stimulation apparatus provided by the utility model is capable of generating magnetic stimulation and direct current stimulation at the same time, so that the simulation effect on the brain nerve tissue is improved, the treatment effect is further improved, and no other damage is caused to the head part.
Description
Technical field
This utility model relates to medical instruments field, particularly a kind of can produce simultaneously magnetic stimulate and galvanic stimulation through cranium stimulating apparatus.
Background technology
Transcranial magnetic stimulation (transcranial magnetic stimulation, TMS) be a kind of painless based on electromagnetic induction technology, noinvasive, the safe cerebral nerve stimulating method directly not contacting with human body, it by producing powerful pulsed magnetic field by of short duration powerful pulse current in the stimulating coil being positioned on head around stimulating coil, this pulsed magnetic field can penetrate scalp and skull, and produce faradic current at intracranial, when faradic intensity exceedes the excited threshold value of nervous tissue, the action potential of nervous tissue will be caused, thereby nervous tissue is produced to stimulation.At present, TMS is usually used in the diagnosis of maincenter nervus motorius function clinically, and the mental sickness such as Cure of depression, schizophrenia, obsession, mania and posttraumatic stress disorder.
The therapeutic effect of TMS is relevant with magnetic stimulus intensity and magnetic stimulation depth, and magnetic stimulus intensity is decayed along with the increase of distance, so general magnetic stimulates the corticocerebral degree of depth to only have 1 to 2 centimetre.Improve therapeutic effect, will increase magnetic stimulus intensity and magnetic stimulation depth, just must improve the electric current in voltage and the stimulating coil at stimulating coil two ends, manufacture difficulty and the cost of TMS equipment have not only been increased, and in stimulating coil, excessive electric current can make stimulating coil heating, may cause burning of head; And high-intensity magnetic stimulates must first could arrive darker cerebral cortex after scalp and skull, so when the nerve of brain depths obtains suitably stimulating, scalp and skull from stimulating coil close to may be strong stimulation, and then cause the side effect of local pain and limited clinical application.
Through cranium galvanic stimulation (transcranial direct current stimulation, tDCS) be that one is utilized constant, low intensity direct current (1 to 2mA) regulates the excitatoty non-invasive cerebral nerve stimulating technology of Cortical Neurons, it is by being attached to large-area electrode slice on scalp, make in brain by small subthreshold stimulus electric current, although this stimulating current can not produce the action potential of neurocyte, but local potential and the cell membrane potential of the cell that can affect the nerves, change the excited threshold value of nervous tissue, thereby the irritability of remote-effects nervous tissue.TDCS has the polarity of stimulation dependency, and the cerebral cortex irritability under anelectrode increases, and stimulus threshold is reduced, and the cerebral cortex irritability under negative electrode declines.
At present, tDCS has the place of a lot of deficiencies, and its galvanism intensity is less, more weak to the modulating action of nervous tissue.TDCS equipment on market is rare, expensive, and tDCS equipment belongs to three class armarium now, has larger risk aspect safe handling.In use, to connect mains supply, the output electrode of this active property equipment is directly connected with human body scalp, if environment generation humidity changes, and causes apparatus insulated decline, leakage current to increase, can increase the nerve stimulation of brain, thereby produce the risk of iatrogenic injury.
Utility model content
Main purpose of the present utility model be to provide a kind of can produce that magnetic stimulates simultaneously and vicarious galvanic stimulation through cranium stimulating apparatus, not only improved the stimulation to cerebral nerve deep tissue, and then improved therapeutic effect and expanded therapeutic domain, and reduced Operative risk and equipment cost, and can not cause pain and other nocuity side effect to head.
To achieve these goals, it is a kind of through cranium stimulating apparatus that this utility model provides, comprise transcranial magnetic stimulation device and through cranium direct current stimulator, wherein, described transcranial magnetic stimulation device comprises having the stimulating coil of through hole and provide the power module of electric energy for described stimulating coil; Describedly through cranium direct current stimulator, comprise the induction coil being fixed in described through hole, the control module being connected with the outfan of described induction coil and the electrode slice being connected with the outfan of described control module;
After described stimulating coil energising, described induction coil is passed in the magnetic field that stimulating coil produces, and makes described induction coil produce induction electromotive force, and control module is according to electrode slice output DC current described in described induction electromotive force control.
Preferably, described control module comprises rectification circuit, filter circuit and constant current output Circuit tuning;
The input of described rectification circuit is connected with the outfan of described induction coil, and the outfan of described rectification circuit is connected with the input of described filter circuit, and the outfan of described filter circuit is connected with the input of described constant current output Circuit tuning; The outfan of described constant current output Circuit tuning is connected with described electrode slice.
Preferably, described induction coil comprises the first outfan and the second outfan, and described rectification circuit comprises the first diode, the second diode, the 3rd diode, the 4th diode, the first rectification output end and the second rectification output end;
The first outfan of described induction coil is connected with the negative electrode of the anode of described the first diode and the 3rd diode, the second outfan of described induction coil is connected with the negative electrode of the anode of described the second diode and the 4th diode, the negative electrode of described the first diode and the second diode is connected with described the first rectification output end, and the anode of described the 3rd diode and the 4th diode is connected with described the second rectification output end.
Preferably, described filter circuit comprises inductance, the first electric capacity, the second electric capacity, the first filtering output end and the second filtering output end;
Described inductance one end is connected with described the first rectification output end, and the other end is connected with described the first filtering output end;
Described first electric capacity one end is connected with described the first rectification output end; The other end is connected with described the second rectification output end, and is connected with described the second filtering output end;
Described second electric capacity one end is connected with described the first filtering output end; The other end is connected with described the second rectification output end, and is connected with described the second filtering output end.
Preferably, described constant current output Circuit tuning comprises audion, stabilivolt, the first resistance, the second resistance, positive output end and negative output terminal;
The base stage of described audion is connected with one end of the negative electrode of described stabilivolt and the first resistance, and the other end of described the first resistance is connected with described the first filtering output end and positive output end, and the anode of described stabilivolt is connected with described the second filtering output end;
The colelctor electrode of described audion is connected with described negative output terminal;
The emitter stage of described audion is connected with one end of described the second resistance, the other end of described the second resistance and the anodic bonding of described stabilivolt;
Described electrode slice comprises positive plate and negative plate; Described positive plate is connected with described positive output end, and described negative plate is connected with described negative output terminal.
Preferably, described constant current output Circuit tuning also comprises the rheostat of connecting with described the second resistance.
Preferably, described stimulating coil and described induction coil coaxially arrange.
What this utility model provided comprises transcranial magnetic stimulation device and through cranium direct current stimulator through cranium stimulating apparatus, and wherein, this transcranial magnetic stimulation device comprises having the stimulating coil of through hole and provide the power module of electric energy for this stimulating coil; This comprises the induction coil being fixed in through hole, the control module being connected with induction coil outfan and the electrode slice being connected with control module outfan through cranium direct current stimulator.When the energising of this transcranial magnetic stimulation device, in stimulating coil, by electric current, and the magnetic field that stimulating coil produces is through induction coil, and makes induction coil produce induction electromotive force, and control module is according to this induction electromotive force control electrode sheet output DC current.What this utility model provided can produce magnetic stimulation and galvanic stimulation through cranium stimulating apparatus simultaneously, has not only improved the stimulation to cerebral nerve tissue, and then has improved therapeutic effect, and can not cause other injuries to head.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model through cranium stimulating apparatus;
Fig. 2 is the schematic diagram of this utility model through cranium stimulating apparatus;
Fig. 3 is the human body head application schematic diagram of this utility model through cranium stimulating apparatus.
Realization, functional characteristics and the advantage of this utility model object, in connection with embodiment, are described further with reference to accompanying drawing.
The specific embodiment
Should be appreciated that specific embodiment described herein is only in order to explain this utility model, and be not used in restriction this utility model.
It is a kind of through cranium stimulating apparatus that this utility model provides.
See figures.1.and.2, Fig. 1 is the structural representation of this utility model through cranium stimulating apparatus, and Fig. 2 is the schematic diagram of this utility model through cranium stimulating apparatus.
It is a kind of through cranium stimulating apparatus that the present embodiment provides, comprise transcranial magnetic stimulation device (in figure do not indicate) and through cranium direct current stimulator (not indicating in figure), wherein, transcranial magnetic stimulation device comprises having the stimulating coil 101 of through hole 1011 and for stimulating coil 101 provides the power module 102 of electric energy, through cranium direct current stimulator, comprise the induction coil 201 being fixed in through hole 1011, the control module 202 being connected with the outfan of induction coil 201 and the electrode slice 203 being connected with control module 202 outfans; After stimulating coil 101 energisings, induction coil 201 is passed in the magnetic field that stimulating coil 101 produces, and makes induction coil 201 produce induction electromotive force, and control module 202 is exported DC current according to induction electromotive force control electrode sheet 203.
In the present embodiment, the diameter of induction coil 201 is slightly less than the diameter of through hole 1011, as long as make in embedding through hole 1011 that induction coil 201 can be firm.
The number of turn of stimulating coil 101 is preferably 18 circles, the number of turn of induction coil 201 is preferably 5 to 6 circles, should be noted that, in other embodiments, the number of turn of stimulating coil 101 and induction coil 201 also can adopt other set-up modes, as long as can make induction coil 201 can produce suitable induction electromotive force.
When this transcranial magnetic stimulation device work, power module 102 provides pulse current for stimulating coil 101, the magnetic field that stimulating coil 101 produces is through induction coil 201, and making induction coil 201 produce induction electromotive force, control module 202 is exported DC current according to this induction electromotive force control electrode sheet 203.
Use this when cranium stimulating apparatus, positive plate 2031 is contacted with the stimulation location of the head of human body, negative plate 2032 is attached to offside head or the neck and shoulder part of this stimulation location, make electrode slice 203 form loop outward at intracranial or intracranial.For example, with reference to Fig. 3, Fig. 3 is the human body head application schematic diagram of this utility model through cranium stimulating apparatus, the outer side contacts of the left side frontal lobe back of the body by positive plate 2031 with depressive patients, negative plate 2032 is contacted with the offside shoulder cervical region of depressive patients, at scalp, to offside, take on the micro-electric current of neck formation one, this micro-electric current improves nervous tissue's irritability of stimulation location, and then excited threshold value is reduced; Stimulating coil 101 and induction coil 201 are placed in to frontal lobe back of the body outside, left side, at this moment 101 of stimulating coils need the less magnetic field of output just can make nervous tissue reach excited threshold value simultaneously, and then make the nervous tissue of stimulation location produce action potential.
What this utility model provided passes through by transcranial magnetic stimulation device with through cranium direct current stimulator use in conjunction through cranium stimulating apparatus, can produce magnetic stimulates and galvanic stimulation simultaneously, do not cause scalp pain in the degree of depth improving to stimulate, the stimulation degree of depth and stimulation to cerebral nerve tissue have not only been improved, and then improved therapeutic effect and expanded therapeutic domain, and can not cause other injuries to head, and reduce equipment cost.
Further, control module 202 comprises rectification circuit 2021, filter circuit 2022 and constant current output Circuit tuning 2023.The input of rectification circuit 2021 is connected with the outfan of induction coil 201, and the outfan of rectification circuit 2021 is connected with the input of filter circuit 2022, and the outfan of filter circuit 2022 is connected with the input of constant current output Circuit tuning 2023; The outfan of constant current output Circuit tuning 2023 is connected with electrode slice 203.In the present embodiment, the alternating current that induction coil 201 is exported carries out rectification, through filter circuit 2022, carries out forming DC current after filtering through rectification circuit 2021 successively, and exports constant current output Circuit tuning to; Constant current output Circuit tuning 2023, according to the DC current of input, forms DC voltage between the positive plate 2031 of electrode slice 203 and negative plate 2032.When positive plate 2031 contacts with human body with negative plate 2032, between positive plate 2031, negative plate 2032 and human body, form a loop, and in human body, form a micro-electric current.
Particularly, induction coil 201 comprises the first outfan b1 and the second outfan b2, and rectification circuit 2021 comprises the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4, the first rectification output end DC1 and the second rectification output end DC2;
The first outfan b1 of induction coil 201 is connected with the anode of the first diode D1 and the negative electrode of the 3rd diode D3, the second outfan b2 of induction coil 201 is connected with the anode of the second diode D2 and the negative electrode of the 4th diode D4, the negative electrode of the first diode D1 and the second diode D2 is connected with the first rectification output end DC1, and the anode of the 3rd diode D3 and the 4th diode D4 is connected with the second rectification output end DC2.
In the present embodiment, when transcranial magnetic stimulation device is worked, power module 102 provides pulse current for stimulating coil 101, thereby makes the intensive magnetic field of the interior generation of through hole 1011, and this magnetic field makes the interior generation induction electromotive force of induction coil 201.When the first outfan b1 output positive voltage, the second outfan b2 of induction coil 201 export negative voltage, the first diode D1 and the 4th diode D4 conducting, the second diode D2 and the 3rd diode D3 cut-off; When the first outfan b1 output negative voltage, the second outfan b2 of induction coil 201 export positive voltage, the first diode D1 and the 4th diode D4 cut-off, the second diode D2 and the 3rd diode D3 conducting.Thereby make the first rectification output end DC1 output HIGH voltage all the time, the second rectification output end DC2 output LOW voltage all the time.
Particularly, filter circuit 2022 comprises inductance L 1, the first capacitor C 1, the second capacitor C 2, the first filtering output end DC3 and the second filtering output end DC4; Inductance L 1 one end is connected with the first rectification output end DC1, and the other end is connected with the first filtering output end DC3; First capacitor C 1 one end is connected with the first rectification output end DC1; The other end is connected with the second rectification output end DC2, and is connected with the second filtering output end DC4; Second capacitor C 2 one end are connected with the first filtering output end DC3; The other end is connected with the second rectification output end DC2, and is connected with the second filtering output end DC4.
In the present embodiment, this filter circuit 2022 is except having filter action, and the second capacitor C 2 in this filter circuit 2022 also has energy storage effect.When above-mentioned transcranial magnetic stimulation device is not worked, the second capacitor C 2 both end voltage are 0, when above-mentioned transcranial magnetic stimulation device is started working, the one end being connected with the second capacitor C 2 and the second rectification output end DC2 of inductance L 1 charge to the second capacitor C 2, the voltage at the second capacitor C 2 two ends raises gradually, and the electric current that filter circuit 2022 is exported is increased to rated value from 0 gradually; When above-mentioned transcranial magnetic stimulation device quits work, because the voltage of the second capacitor C 2 can not suddenly change to 0, thereby guaranteed electric current that filter circuit 2022 exports gradually be down to 0.Therefore, when this is when cranium stimulating apparatus is started working or quit work, the electric current in the loop that electrode slice 203 and human body form can not raise suddenly or reduce suddenly, is more suitable for user and uses.
Particularly, constant current output Circuit tuning 2023 comprises audion Q1, stabilivolt ZD1, the first resistance R 1, the second resistance R 2, positive output end P+ and negative output terminal P-; The base stage of audion Q1 is connected with the negative electrode of stabilivolt ZD1 and one end of the first resistance R 1, and the other end of the first resistance R 1 is connected with the first filtering output end DC3 and positive output end P+, and the anode of stabilivolt ZD1 is connected with the second filtering output end DC4; The colelctor electrode of audion Q1 is connected with negative output terminal P-; The emitter stage of audion Q1 is connected with one end of the second resistance R 2, the anodic bonding of the other end of the second resistance R 2 and stabilivolt ZD1; Positive output end P+ is connected with positive plate 2031, and negative output terminal P-is connected with negative plate 2032.
In the present embodiment, the voltage stabilizing value of stabilivolt ZD1 is preferably 1.2V, when the voltage at the second resistance R 2 two ends is greater than 0.5V, and audion Q1 cut-off, not output current of electrode slice 203.
Further, constant current output Circuit tuning 2023 also comprises the rheostat R3 connecting with the second resistance R 2, the DC current of rheostat R3 for regulating constant current output regulation circuit 2023 to export.
In the present embodiment, preferred implementation is, the resistance of the second resistance R 2 is 250 Ω, and the resistance range of accommodation of rheostat R3 is 0 to 10K Ω.When the resistance of rheostat R3 is adjusted to 0 Ω, the electric current that the second resistance R 2 is passed through is 2000 μ A; When the resistance of rheostat R3 is adjusted to 10K Ω, the electric current that the second resistance R 2 is passed through is about 49 μ A.Therefore the current range of, passing through in the second resistance R 2 is 49 μ A to 2000 μ A.In the present embodiment, by regulating rheostat R3, thereby scalable acts on the micro-electric current in human body, can meet the demand of different user and different stimulated effect
Further, stimulating coil 101 and induction coil 201 coaxially arrange.Under this kind of set-up mode, in stimulating coil 101, by after electric current, induction coil 201 more easily produces induction electromotive force, has improved work efficiency.
These are only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes this utility model description and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (7)
1. through a cranium stimulating apparatus, it is characterized in that, comprise transcranial magnetic stimulation device and through cranium direct current stimulator, wherein,
Described transcranial magnetic stimulation device comprises having the stimulating coil of through hole and provide the power module of electric energy for described stimulating coil;
Describedly through cranium direct current stimulator, comprise the induction coil being fixed in described through hole, the control module being connected with the outfan of described induction coil and the electrode slice being connected with the outfan of described control module;
After described stimulating coil energising, described induction coil is passed in the magnetic field that stimulating coil produces, and makes described induction coil produce induction electromotive force, and control module is according to electrode slice output DC current described in described induction electromotive force control.
2. as claimed in claim 1ly through cranium stimulating apparatus, it is characterized in that, described control module comprises rectification circuit, filter circuit and constant current output Circuit tuning;
The input of described rectification circuit is connected with the outfan of described induction coil, and the outfan of described rectification circuit is connected with the input of described filter circuit, and the outfan of described filter circuit is connected with the input of described constant current output Circuit tuning; The outfan of described constant current output Circuit tuning is connected with described electrode slice.
3. as claimed in claim 2 through cranium stimulating apparatus, it is characterized in that, described induction coil comprises the first outfan and the second outfan, and described rectification circuit comprises the first diode, the second diode, the 3rd diode, the 4th diode, the first rectification output end and the second rectification output end;
The first outfan of described induction coil is connected with the negative electrode of the anode of described the first diode and the 3rd diode, the second outfan of described induction coil is connected with the negative electrode of the anode of described the second diode and the 4th diode, the negative electrode of described the first diode and the second diode is connected with described the first rectification output end, and the anode of described the 3rd diode and the 4th diode is connected with described the second rectification output end.
4. as claimed in claim 3ly through cranium stimulating apparatus, it is characterized in that, described filter circuit comprises inductance, the first electric capacity, the second electric capacity, the first filtering output end and the second filtering output end;
Described inductance one end is connected with described the first rectification output end, and the other end is connected with described the first filtering output end;
Described first electric capacity one end is connected with described the first rectification output end; The other end is connected with described the second rectification output end, and is connected with described the second filtering output end;
Described second electric capacity one end is connected with described the first filtering output end; The other end is connected with described the second rectification output end, and is connected with described the second filtering output end.
5. as claimed in claim 4ly through cranium stimulating apparatus, it is characterized in that, described constant current output Circuit tuning comprises audion, stabilivolt, the first resistance, the second resistance, positive output end and negative output terminal;
The base stage of described audion is connected with one end of the negative electrode of described stabilivolt and the first resistance, and the other end of described the first resistance is connected with described the first filtering output end and positive output end, and the anode of described stabilivolt is connected with described the second filtering output end;
The colelctor electrode of described audion is connected with described negative output terminal;
The emitter stage of described audion is connected with one end of described the second resistance, the other end of described the second resistance and the anodic bonding of described stabilivolt;
Described electrode slice comprises positive plate and negative plate; Described positive plate is connected with described positive output end, and described negative plate is connected with described negative output terminal.
6. as claimed in claim 5ly through cranium stimulating apparatus, it is characterized in that, described constant current output Circuit tuning also comprises the rheostat of connecting with described the second resistance.
7. as claimed in claim 1ly through cranium stimulating apparatus, it is characterized in that, described stimulating coil and described induction coil coaxially arrange.
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| CN201320623282.1U CN203556061U (en) | 2013-10-10 | 2013-10-10 | Transcranial stimulation apparatus |
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| CN201320623282.1U CN203556061U (en) | 2013-10-10 | 2013-10-10 | Transcranial stimulation apparatus |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486888A (en) * | 2015-11-30 | 2016-04-13 | 燕山大学 | Transcranial direct current stimulation and laser Doppler velocity measurement integrated device |
| CN106823133A (en) * | 2017-04-07 | 2017-06-13 | 博睿泰克科技（宁波）有限公司 | Electrical transcranial stimulation and trans-skull magnetic stimulating device based on electrode |
| CN107362450A (en) * | 2017-07-31 | 2017-11-21 | 深圳生理科技有限公司 | Transcranial magnetic stimulation circuit, stimulator and its magnetic field impulse generation method |
| CN107456656A (en) * | 2017-06-09 | 2017-12-12 | 西安交通大学 | A kind of multichannel trans-skull magnetic stimulating device based on straight wire array |
| CN107929938A (en) * | 2017-12-27 | 2018-04-20 | 首都医科大学宣武医院 | One kind is through cranium electromagnetism synchronization stimulating system |
-
2013
- 2013-10-10 CN CN201320623282.1U patent/CN203556061U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486888A (en) * | 2015-11-30 | 2016-04-13 | 燕山大学 | Transcranial direct current stimulation and laser Doppler velocity measurement integrated device |
| CN106823133A (en) * | 2017-04-07 | 2017-06-13 | 博睿泰克科技（宁波）有限公司 | Electrical transcranial stimulation and trans-skull magnetic stimulating device based on electrode |
| CN107456656A (en) * | 2017-06-09 | 2017-12-12 | 西安交通大学 | A kind of multichannel trans-skull magnetic stimulating device based on straight wire array |
| CN107456656B (en) * | 2017-06-09 | 2024-04-02 | 西安交通大学 | Multichannel transcranial magnetic stimulation device based on straight wire array |
| CN107362450A (en) * | 2017-07-31 | 2017-11-21 | 深圳生理科技有限公司 | Transcranial magnetic stimulation circuit, stimulator and its magnetic field impulse generation method |
| CN107929938A (en) * | 2017-12-27 | 2018-04-20 | 首都医科大学宣武医院 | One kind is through cranium electromagnetism synchronization stimulating system |
| CN107929938B (en) * | 2017-12-27 | 2020-11-20 | 首都医科大学宣武医院 | Transcranial electromagnetic synchronous stimulation system |
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