CN209865035U - Portable transcranial direct current stimulation instrument - Google Patents
Portable transcranial direct current stimulation instrument Download PDFInfo
- Publication number
- CN209865035U CN209865035U CN201920238426.9U CN201920238426U CN209865035U CN 209865035 U CN209865035 U CN 209865035U CN 201920238426 U CN201920238426 U CN 201920238426U CN 209865035 U CN209865035 U CN 209865035U
- Authority
- CN
- China
- Prior art keywords
- moving rod
- module
- control module
- type triode
- resistor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Electrotherapy Devices (AREA)
Abstract
The utility model relates to a portable transcranial direct current stimulation appearance, adopt brand-new structural design, introduce the automatically controlled switched structure of machinery, in the application, can carry out real-time detection to the power supply end that inserts, and in view of the above, through the automatically controlled auto-change over device of machinery of specific design, the appointed voltage conversion module of intelligence switching docks with external power supply end, realize voltage conversion, pass through voltage current modulation circuit module in proper order afterwards again, the current control module, carry to each electrode at last, realize the electrical stimulation of transcranial, so can extensively be applicable to the power supply end of all kinds of voltage specifications, the convenience of use has been improved greatly.
Description
Technical Field
The utility model relates to a portable transcranial direct current stimulator, which belongs to the technical field of transcranial electrical stimulation.
Background
Transcranial Electrical Stimulation (tEs) is a non-invasive neurostimulation technique that uses specific, low-intensity Electrical Current (-2 ~ +2 mA, more than 2 mA for scientific studies only) applied to specific brain regions via electrodes to achieve the purpose of regulating cortical neural activity, and includes a variety of Stimulation modalities, which can be classified into Transcranial Direct Current Stimulation (tDCS), Transcranial Alternating Current Stimulation (tACS), Transcranial Random Noise Stimulation (tRNS), which was originally used to help stroke patients with brain injuries.
The mechanism of action of how tDCS regulates the behavioral output of brain activity is currently unclear. Preliminary animal and clinical studies have shown that low levels of direct current can alter the excitability of the cerebral cortex. At present, one of the main mechanisms of tDCS is that the tDCS can change the resting potential of neurons, and when the negative electrode of a direct current electrode is close to the cell body or dendrite of the nerve cells, the resting potential is increased, the discharge of the neurons is weakened, and hyperpolarization is generated, so that the activity of the cells is inhibited; conversely, depolarization occurs, thereby activating the activity of the cell. It has been found that anodal stimulation increases the magnitude of the motor-evoked potential induced by transcranial magnetic stimulation, while cathodal stimulation decreases the magnitude of the motor-evoked potential. This suggests that anodal stimulation increases excitability of cortical neurons while cathodal stimulation decreases excitability. Animal experimental results also show that anodic stimulation increases the cell discharge frequency, and cathodic stimulation decreases the cell discharge frequency. The effect of the anodic tDCS in increasing excitability is related to the ion channel. Ex vivo results show that excitation of anodic tDCS is blocked by antagonists of voltage-dependent sodium and calcium channels.
tDCS can not only regulate the activity of individual neurons, but can also affect the overall activity of multiple neurons and groups of neurons. tDCS can regulate and control the EEG activity of delta and theta frequency bands in a resting state. Besides the immediate effect, another major effect associated with its function is the post-effect, i.e. the stimulation still lasts for a certain period of time after the stimulation has ceased. This is the key effect of tDCS to exert therapeutic effects. The duration of the post-effect is related to the current intensity, stimulation time and stimulation times. the post-effect of tDCS is associated with its effect on synaptic connection function between neurons, altering synaptic plasticity. In recent years it has been found that a variety of neurotransmitters are involved in tDCS-induced post-effects, with the glutamate system being the most prominent. The aftereffect of tDCS disappears when the NMDA receptor mediating synaptic plasticity changes is blocked by an antagonist. The dopamine system is also involved in tDCS-mediated plasticity changes, particularly in relation to the D1/D5 ratio and the D2/D3/D4 ratio. It has also been recently discovered that activation of the 5 hydroxytryptamine system can prolong the post-effect of anodic stimulation and reverse the inhibitory effect of cathodic stimulation, turning into an excitatory effect. There are studies that suggest that electric fields can enhance and guide the growth of neurons. After transcranial electrical stimulation is applied to normal people and patients with damaged brain or lack of cognitive function, the results show that in the cognitive training process, the neural circuit can be adjusted so as to improve the missing cognitive function. In some cases, there is a long-term effect of transcranial electrical stimulation. Modulation of anodal stimulation can reduce local levels of the inhibitory neurotransmitter gamma aminobutyric acid (GABA), while cathodal stimulation increases the transport of glutamate from the motor region during simple motor tasks. The magnitude of GABA affects learning ability, and thus it may play an important role in tDCS in improving learning and cognitive ability. Further animal studies have shown that electrical anodal stimulation can increase the secretion of brain-derived neurotrophic factor, a growth factor that plays a key role in synaptic learning, which in turn modulates long-term potentiation (LTP). The activity of the N-methyl-D-aspartate amino acid (NMDA) receptor modulates LTP. While anodal electrical stimulation can enhance most cognitive functions (such as reading, speaking, decision making, or arithmetic) by increasing cortical excitability, cathodal electrical stimulation can suppress neural activity of the associated network, and thus specific frontal lobe functions, such as response suppression, can be enhanced using cathodal stimulation. It can thus be seen that the mechanism of action of tDCS appears to involve multiple neurotransmitters and neural activity of various dimensions. However, the question of whether there is a specific mechanism of action to explain the actions of tDCS, specifically which are the dominant, critical mechanisms and which are the secondary, varying mechanisms, remains to be further discussed. The study of these problems has enabled us to understand the mechanism of action of tDCS more deeply.
Therefore, transcranial direct current stimulation is gradually accepted in the aspects of medicine and the like, but along with the application trend, how to make a complex and troublesome-to-use device more convenient is the key for improving popularization, and only by improving convenience and use efficiency, the new technology can be widely applied to practice, otherwise, any new technology stays in a scientific research stage.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a portable transcranial direct current stimulation appearance that adopts brand-new structural design, introduces mechanical automatically controlled switching formula structure, improves intelligent recognition, intelligent control, can effectively improve the convenience of use.
The utility model discloses a solve above-mentioned technical problem and adopt following technical scheme: the utility model designs a portable transcranial direct current stimulator, which comprises a device shell, a power taking interface, a conducting strip, a layout plate, an electric control moving rod, a motor driving circuit module, a voltage detection module, a voltage and current modulation circuit module, a current control module, a timing module, a storage module, at least two electrodes and at least two voltage conversion modules with different voltage conversion specifications; the electricity taking interface is arranged on the surface of the device shell, each electrode is positioned outside the device shell, and the rest modules are arranged inside the device shell; the end part of the electricity taking interface, which is positioned in the device shell, is respectively connected with the voltage detection module and the conducting strip, and the position of the conducting strip is fixed; the voltage detection module is connected with the control module; the input end of each voltage conversion module is respectively connected with a wire, the other end of each voltage conversion module input end is respectively connected with the other end of the wire which is fixedly arranged on the arrangement plate, the other end of each wire is collinear, one side of the arrangement plate is fixedly connected with the top end of the upper moving rod of the electric control moving rod, the common straight line of the end parts of the wires on the arrangement plate is parallel to the straight line of the upper moving rod of the electric control moving rod, the position of the end part of each wire on the arrangement plate faces to the conducting plate, the arrangement plate moves along with the movement of the upper moving rod of the electric control moving rod, and the end part of each wire on the arrangement plate is selectively contacted with the conducting plate along with the movement of the; the electric control moving rod is connected with the control module through the motor driving circuit module, the output end of each voltage conversion module is respectively connected with the input end of the voltage and current modulation circuit module, the output end of the voltage and current modulation circuit module is connected with the input end of the current control module, and the output end of the current control module is respectively connected with each electrode through a lead; the control module is respectively connected with the current control module, the timing module and the storage module.
As an optimal technical solution of the utility model: the motor driving circuit module comprises a first NPN type triode Q1, a second NPN type triode Q2, a third PNP type triode Q3, a fourth PNP type triode Q4, a first resistor R1, a second resistor R2, a third resistor R3 and a fourth resistor R4; one end of the first resistor R1 is connected to the positive power supply end of the control module, and the other end of the first resistor R1 is connected to the collector of the first NPN transistor Q1 and the collector of the second NPN transistor Q2, respectively; an emitting electrode of the first NPN type triode Q1 and an emitting electrode of the second NPN type triode Q2 are respectively connected to both ends of the electrically controlled moving rod, and meanwhile, an emitting electrode of the first NPN type triode Q1 is connected to an emitting electrode of the third PNP type triode Q3, and an emitting electrode of the second NPN type triode Q2 is connected to an emitting electrode of the fourth PNP type triode Q4; the collector of the third PNP triode Q3 is connected with the collector of the fourth PNP triode Q4 and is grounded; the base electrode of the first NPN type triode Q1 is connected with the base electrode of the third PNP type triode Q3 and is connected with the control module through a second resistor R2; the base electrode of the second NPN type triode Q2 is connected with the control module through a third resistor R3; the base of the fourth PNP transistor Q4 is connected to the control module through the fourth resistor R4.
As an optimal technical solution of the utility model: the timing module comprises a DS1302 clock chip, a capacitor C1, a capacitor C2, a standby power supply and a quartz crystal filter; the main power supply access end of the DS1302 clock chip is connected with the power supply end of the control module; an oscillation source end X1 of the DS1302 clock chip is respectively connected with one end of a capacitor C1 and one end of a quartz crystal filter; an oscillation source end X2 of the DS1302 clock chip is respectively connected with one end of a capacitor C2 and the other end of the quartz crystal filter; the other end of the capacitor C1 is connected with the other end of the capacitor C2 and is grounded; the reset end, the input/output end and the clock input end of the DS1302 clock chip are respectively connected with the control module; and a backup power supply access end of the DS1302 clock chip is connected with a backup power supply.
As an optimal technical solution of the utility model: the electric control moving rod comprises a rotating motor, a driving gear, a moving rod and two limiting clamping sleeves; the rotating motor is connected with the control module through the motor driving circuit module; the position of a rotating motor is fixed, a driving gear is fixedly connected to the end part of a driving rod of the rotating motor, the driving gear rotates along with the rotation of the driving rod on the rotating motor, a moving rod sequentially penetrates through two limiting clamping sleeves, the positions of the two limiting clamping sleeves are fixed, insections are arranged on one surface of the moving rod along the linear direction of the moving rod, and the insections on the moving rod are matched with the insections of the driving gear; the tooth line surface of the moving rod faces the driving gear, the tooth lines on the moving rod are meshed with the tooth lines of the driving gear, and the moving rod rotates along with the driving of the rotating motor to the driving gear under the limit of the two limit clamping sleeves and moves back and forth on the straight line where the moving rod is located.
As an optimal technical solution of the utility model: and a rotating motor in the electric control moving rod is a brushless rotating motor.
As an optimal technical solution of the utility model: the control module is a microprocessor.
As an optimal technical solution of the utility model: the microprocessor is an ARM processor.
Compared with the prior art, the technical scheme adopted by the portable transcranial direct current stimulator has the following technical effects: the utility model discloses a portable transcranial direct current stimulation appearance, adopt brand-new structural design, introduce the automatically controlled switched structure of machinery, in using, can carry out real-time detection to the power supply end that inserts, and in view of the above, through the automatically controlled auto-change over device of machinery of specific design, the appointed voltage conversion module of intelligence switching docks with external power supply end, realize voltage conversion, again in proper order afterwards through voltage current modulation circuit module, the current control module, carry to each electrode at last, realize the electrical stimulation of transcranial, so can extensively be applicable to the power supply end of all kinds of voltage specifications, the convenience of use has been improved greatly.
Drawings
FIG. 1 is a block diagram of a portable transcranial DC stimulator according to the present invention;
FIG. 2 is a schematic diagram of a motor driving circuit module in the portable transcranial DC stimulator designed by the present invention;
fig. 3 is a schematic diagram of a timing module in the portable transcranial direct current stimulation instrument designed by the utility model.
The electric control device comprises a base, a plurality of electric control moving rods, a plurality of positioning plates, a plurality of rotating motors, a plurality of driving gears, a plurality of moving rods, a plurality of limiting clamping sleeves and a plurality of positioning plates, wherein the electric control moving rods are arranged in the base 1, the arranging plates 2, 3, the rotating motors 4, the driving gears 5, the moving rods 6 and.
Detailed Description
The following description will be provided to further explain embodiments of the present invention in detail with reference to the accompanying drawings.
As shown in fig. 1, the utility model discloses a portable transcranial direct current stimulator, which comprises a device shell, a power taking interface, a conducting strip 1, a layout plate 2, an electric control moving rod 3, a motor driving circuit module, a voltage detection module, a voltage and current modulation circuit module, a current control module, a timing module, at least two electrodes of a storage module and at least two voltage conversion modules with different voltage conversion specifications; the electricity taking interface is arranged on the surface of the device shell, each electrode is positioned outside the device shell, and the rest modules are arranged inside the device shell; the end part of the electricity taking interface positioned in the device shell is respectively connected with the voltage detection module and the conducting plate 1, and the position of the conducting plate 1 is fixed; the voltage detection module is connected with the control module; the input end of each voltage conversion module is respectively connected with a wire, the other end of each wire connected with the input end of each voltage conversion module is fixedly arranged on the arrangement plate 2, the other end of each wire is collinear, one side of the arrangement plate 2 is fixedly connected with the top end of the upward moving rod of the electric control moving rod 3, the common straight line of the end parts of the wires on the arrangement plate 2 is parallel to the straight line of the upward moving rod of the electric control moving rod 3, the position of the electric control moving rod 3 is fixed, the position of the end part of each wire on the arrangement plate 2 faces to the conducting plate 1, the arrangement plate 2 moves under the telescopic control of the upward moving rod of the electric control moving rod 3, and the end part of each wire on the arrangement plate 2 is selectively contacted with the conducting plate 1 along with the movement of the arrangement plate 2; the electric control movable rod 3 is connected with the control module through the motor driving circuit module, the output end of each voltage conversion module is respectively connected with the input end of the voltage and current modulation circuit module, the output end of the voltage and current modulation circuit module is connected with the input end of the current control module, and the output end of the current control module is respectively connected with each electrode through a lead; the control module is respectively connected with the current control module, the timing module and the storage module. The portable transcranial direct current stimulator designed by the technical scheme adopts a brand new structural design, introduces a mechanical electric control switching type structure, can perform real-time detection on the accessed power supply end in application, and accordingly, through the mechanical electric control switching device specifically designed, the intelligent switching appointed voltage conversion module is in butt joint with an external power supply end to realize voltage conversion, and then the voltage conversion passes through the voltage and current modulation circuit module and the current control module in sequence and is finally conveyed to each electrode to realize transcranial electric stimulation, so that the portable transcranial direct current stimulator can be widely applied to power supply ends with various voltage specifications, and the use convenience is greatly improved.
Based on the technical scheme of the portable transcranial direct current stimulator, the utility model further designs the following preferred technical scheme: as shown in fig. 2, the motor driving circuit module includes a first NPN transistor Q1, a second NPN transistor Q2, a third PNP transistor Q3, a fourth PNP transistor Q4, a first resistor R1, a second resistor R2, a third resistor R3, and a fourth resistor R4; one end of the first resistor R1 is connected to the positive power supply end of the control module, and the other end of the first resistor R1 is connected to the collector of the first NPN transistor Q1 and the collector of the second NPN transistor Q2, respectively; an emitting electrode of the first NPN transistor Q1 and an emitting electrode of the second NPN transistor Q2 are respectively connected to both ends of the electrically controlled moving bar 3, and meanwhile, an emitting electrode of the first NPN transistor Q1 is connected to an emitting electrode of the third PNP transistor Q3, and an emitting electrode of the second NPN transistor Q2 is connected to an emitting electrode of the fourth PNP transistor Q4; the collector of the third PNP triode Q3 is connected with the collector of the fourth PNP triode Q4 and is grounded; the base electrode of the first NPN type triode Q1 is connected with the base electrode of the third PNP type triode Q3 and is connected with the control module through a second resistor R2; the base electrode of the second NPN type triode Q2 is connected with the control module through a third resistor R3; the base electrode of the fourth PNP type triode Q4 is connected with the control module through a fourth resistor R4; as shown in fig. 3, for the timing module, a DS1302 clock chip, a capacitor C1, a capacitor C2, a standby power supply and a quartz crystal filter are further designed; the main power supply access terminal VCC2 of the DS1302 clock chip is connected to the power supply terminal VCC via the control module; an oscillation source end X1 of the DS1302 clock chip is respectively connected with one end of a capacitor C1 and one end of a quartz crystal filter; an oscillation source end X2 of the DS1302 clock chip is respectively connected with one end of a capacitor C2 and the other end of the quartz crystal filter; the other end of the capacitor C1 is connected with the other end of the capacitor C2 and is grounded; the reset terminal RST, the input/output terminal I/O and the clock input terminal SCLK of the DS1302 clock chip are respectively connected with the control module; a backup power supply access terminal VCC1 of the DS1302 clock chip is connected with a backup power supply; the electric control moving rod 3 comprises a rotating motor 4, a driving gear 5, a moving rod 6 and two limiting clamping sleeves 7; the rotating motor 4 is connected with the control module through a motor driving circuit module; the position of a rotating motor 4 is fixed, a driving gear 5 is fixedly connected to the end part of a driving rod of the rotating motor 4, the driving gear 5 rotates along with the rotation of the driving rod on the rotating motor 4, a moving rod 6 sequentially penetrates through two limiting clamping sleeves 7, the positions of the two limiting clamping sleeves 7 are fixed, insections are arranged on one surface of the moving rod 6 along the linear direction of the moving rod, and the insections on the moving rod 6 are matched with the insections of the driving gear 5; the insection surface of the moving rod 6 faces the driving gear 5, insections on the moving rod 6 are meshed with insections of the driving gear 5, and the moving rod 6 rotates along with the driving of the rotating motor 4 to the driving gear 5 under the limit of the two limit cutting ferrules 7 and moves back and forth along the straight line where the moving rod is located. A brushless rotating motor is further designed and adopted for a rotating motor 4 in the electric control moving rod 3; the portable transcranial direct current stimulator can realize mute work in the actual working process, not only ensures the high-efficiency convenience of the designed portable transcranial direct current stimulator, but also ensures that the working process of the portable transcranial direct current stimulator does not generate noise influence on the surrounding environment, and embodies the humanized design in the design process; aiming at the control module, a microprocessor is further designed and specifically an ARM processor is adopted, so that the expansion requirement of the designed portable transcranial direct current stimulator in the later period can be met, and the simple control architecture mode can facilitate the later maintenance.
The portable transcranial direct current stimulator specifically comprises a device shell, a power taking interface, a conducting strip 1, a layout plate 2, an electric control moving rod 3, a motor driving circuit module, a voltage detection module, a voltage and current modulation circuit module, a current control module, an ARM processor, a timing module, at least two electrodes of a storage module and at least two voltage conversion modules with different voltage conversion specifications; the electricity taking interface is arranged on the surface of the device shell, each electrode is positioned outside the device shell, and the rest modules are arranged inside the device shell; the end part of the electricity taking interface positioned in the device shell is respectively connected with the voltage detection module and the conducting plate 1, and the position of the conducting plate 1 is fixed; the voltage detection module is connected with the ARM processor; the input end of each voltage conversion module is respectively connected with a wire, the other end of each voltage conversion module input end is respectively connected with the other end of the wire which is fixedly arranged on the arrangement plate 2, and the other end of each wire is collinear, one side of the arrangement plate 2 is fixedly connected with the top end of the upward moving rod of the electric control moving rod 3, the common straight line of the end parts of the wires on the arrangement plate 2 is parallel to the straight line of the upward moving rod of the electric control moving rod 3, the end parts of the wires on the arrangement plate 2 face the conducting plate 1, the arrangement plate 2 moves under the telescopic control of the upward moving rod of the electric control moving rod 3, and the end parts of the wires on the arrangement plate 2 are selected to contact with the conducting plate 1 along with the movement of the arrangement plate 2; the electric control moving rod 3 comprises a rotating motor 4, a driving gear 5, a moving rod 6 and two limiting clamping sleeves 7; the position of a rotating motor 4 is fixed, a driving gear 5 is fixedly connected to the end part of a driving rod of the rotating motor 4, the driving gear 5 rotates along with the rotation of the driving rod on the rotating motor 4, a moving rod 6 sequentially penetrates through two limiting clamping sleeves 7, the positions of the two limiting clamping sleeves 7 are fixed, insections are arranged on one surface of the moving rod 6 along the linear direction of the moving rod, and the insections on the moving rod 6 are matched with the insections of the driving gear 5; the insection surface of the moving rod 6 faces the driving gear 5, insections on the moving rod 6 are meshed with insections of the driving gear 5, and the moving rod 6 rotates along with the driving of the rotating motor 4 to the driving gear 5 under the limit of the two limit cutting ferrules 7 and moves back and forth along the straight line where the moving rod is located. A brushless rotating motor is further designed and adopted for a rotating motor 4 in the electric control moving rod 3; the rotating motor 4 is connected with the ARM processor through a motor driving circuit module, and the motor driving circuit module comprises a first NPN type triode Q1, a second NPN type triode Q2, a third PNP type triode Q3, a fourth PNP type triode Q4, a first resistor R1, a second resistor R2, a third resistor R3 and a fourth resistor R4; one end of the first resistor R1 is connected with the positive power supply end of the ARM processor, and the other end of the first resistor R1 is respectively connected with the collector of the first NPN type triode Q1 and the collector of the second NPN type triode Q2; an emitting electrode of the first NPN transistor Q1 and an emitting electrode of the second NPN transistor Q2 are respectively connected to both ends of the electrically controlled moving bar 3, and meanwhile, an emitting electrode of the first NPN transistor Q1 is connected to an emitting electrode of the third PNP transistor Q3, and an emitting electrode of the second NPN transistor Q2 is connected to an emitting electrode of the fourth PNP transistor Q4; the collector of the third PNP triode Q3 is connected with the collector of the fourth PNP triode Q4 and is grounded; the base electrode of the first NPN type triode Q1 is connected with the base electrode of the third PNP type triode Q3 and is connected with the ARM processor through a second resistor R2; the base electrode of the second NPN type triode Q2 is connected with the ARM processor through a third resistor R3; the base electrode of the fourth PNP type triode Q4 is connected with the ARM processor through a fourth resistor R4; the output end of each voltage conversion module is respectively connected with the input end of a voltage current modulation circuit module, the output end of the voltage current modulation circuit module is connected with the input end of a current control module, and the output end of the current control module is respectively connected with each electrode through a lead; the ARM processor is respectively connected with the current control module, the timing module and the storage module; the timing module comprises a DS1302 clock chip, a capacitor C1, a capacitor C2, a standby power supply and a quartz crystal filter; the main power supply access terminal VCC2 of the DS1302 clock chip is connected with the power supply terminal VCC passing through the ARM processor; an oscillation source end X1 of the DS1302 clock chip is respectively connected with one end of a capacitor C1 and one end of a quartz crystal filter; an oscillation source end X2 of the DS1302 clock chip is respectively connected with one end of a capacitor C2 and the other end of the quartz crystal filter; the other end of the capacitor C1 is connected with the other end of the capacitor C2 and is grounded; the reset end RST, the input/output end I/O and the clock input end SCLK of the DS1302 clock chip are respectively connected with the ARM processor; the backup power supply access terminal VCC1 of the DS1302 clock chip is connected with a backup power supply. In practical application, in an initial state, the conducting strip 1 connected with the electricity taking interface is not connected with any end part of a conducting wire on the arrangement plate 2, an operator connects the electricity taking interface of the designed portable transcranial direct current stimulation instrument to any external power supply end, at the moment, the ARM processor can acquire the voltage of the connected external power supply end through the voltage detection module, then the ARM processor controls the electric control movable rod 3 to work according to the voltage of the connected external power supply end, namely, the rotating motor 4 in the electric control movable rod 3 is controlled to work to drive the driving gear 5 to rotate, the conducting strip on the movable rod 6 is meshed with the insection of the driving gear 5, the movable rod 6 is driven to rotate along with the rotating motor 4 and moves along the straight line of the driving gear 5 under the limit of the two limit clamp sleeves 7, the movement of the arrangement plate 2 is controlled, and the end part of the conducting wire connected with the input end part of the appointed voltage conversion module can be switched to be contacted with the conducting strip 1 connected with, the voltage of an external power supply end is converted by adopting an appointed voltage conversion module, then the power supply voltage converted by the appointed voltage conversion module is sequentially transmitted to each electrode through a voltage current modulation circuit module and a current control module to realize direct current stimulation, in the process, the voltage current modulation circuit module aims at adjusting and controlling the received current to the current with appointed size, then an ARM processor calls a control program from a storage module and times through a timing circuit according to each control process, on one hand, the current control module is controlled to work, the current transmitted to the electrode is increased at a constant speed or decreased at a constant speed, namely, the current on each electrode is stably adjusted, and the high efficiency of practical application is ensured; based on the above-mentioned concrete application process of designing, the utility model discloses a portable through cranium direct current stimulation appearance can extensively be applicable to the supply terminal of all kinds of voltage specifications, has improved the use convenience greatly.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (7)
1. A portable transcranial direct current stimulator is characterized in that: the device comprises a device shell, a power taking interface, a conducting strip (1), a layout plate (2), an electric control moving rod (3), a motor driving circuit module, a voltage detection module, a voltage and current modulation circuit module, a current control module, a timing module, a storage module, at least two electrodes and at least two voltage conversion modules with different voltage conversion specifications; the electricity taking interface is arranged on the surface of the device shell, each electrode is positioned outside the device shell, and the rest modules are arranged inside the device shell; the end part of the electricity taking interface, which is positioned in the device shell, is respectively connected with the voltage detection module and the conducting strip (1), and the position of the conducting strip (1) is fixed; the voltage detection module is connected with the control module; the input end of each voltage conversion module is respectively connected with a wire, the other end of each wire connected with the input end of each voltage conversion module is fixedly arranged on the arrangement plate (2), the other end of each wire is collinear, one side of the arrangement plate (2) is fixedly connected with the top end of the upper moving rod of the electric control moving rod (3), the common straight line of the end parts of the wires on the arrangement plate (2) is parallel to the straight line of the upper moving rod of the electric control moving rod (3), the positions of the end parts of the wires on the arrangement plate (2) face the conducting strip (1), the arrangement plate (2) moves along with the movement of the upper moving rod of the electric control moving rod (3), and the end parts of the wires on the arrangement plate (2) are selected to be in contact with the conducting strip (1) along with the movement of the arrangement plate (2); the electric control moving rod (3) is connected with the control module through the motor driving circuit module, the output end of each voltage conversion module is respectively connected with the input end of the voltage and current modulation circuit module, the output end of the voltage and current modulation circuit module is connected with the input end of the current control module, and the output end of the current control module is respectively connected with each electrode through a lead; the control module is respectively connected with the current control module, the timing module and the storage module.
2. The portable transcranial direct current stimulator according to claim 1, wherein: the motor driving circuit module comprises a first NPN type triode Q1, a second NPN type triode Q2, a third PNP type triode Q3, a fourth PNP type triode Q4, a first resistor R1, a second resistor R2, a third resistor R3 and a fourth resistor R4; one end of the first resistor R1 is connected to the positive power supply end of the control module, and the other end of the first resistor R1 is connected to the collector of the first NPN transistor Q1 and the collector of the second NPN transistor Q2, respectively; an emitting electrode of the first NPN type triode Q1 and an emitting electrode of the second NPN type triode Q2 are respectively connected to two ends of the electric control moving rod (3), meanwhile, an emitting electrode of the first NPN type triode Q1 is connected with an emitting electrode of the third PNP type triode Q3, and an emitting electrode of the second NPN type triode Q2 is connected with an emitting electrode of the fourth PNP type triode Q4; the collector of the third PNP triode Q3 is connected with the collector of the fourth PNP triode Q4 and is grounded; the base electrode of the first NPN type triode Q1 is connected with the base electrode of the third PNP type triode Q3 and is connected with the control module through a second resistor R2; the base electrode of the second NPN type triode Q2 is connected with the control module through a third resistor R3; the base of the fourth PNP transistor Q4 is connected to the control module through the fourth resistor R4.
3. The portable transcranial direct current stimulator according to claim 1, wherein: the timing module comprises a DS1302 clock chip, a capacitor C1, a capacitor C2, a standby power supply and a quartz crystal filter; the main power supply access end of the DS1302 clock chip is connected with the power supply end of the control module; an oscillation source end X1 of the DS1302 clock chip is respectively connected with one end of a capacitor C1 and one end of a quartz crystal filter; an oscillation source end X2 of the DS1302 clock chip is respectively connected with one end of a capacitor C2 and the other end of the quartz crystal filter; the other end of the capacitor C1 is connected with the other end of the capacitor C2 and is grounded; the reset end, the input/output end and the clock input end of the DS1302 clock chip are respectively connected with the control module; and a backup power supply access end of the DS1302 clock chip is connected with a backup power supply.
4. A portable transcranial direct current stimulator according to claim 1 or 2, wherein: the electric control moving rod (3) comprises a rotating motor (4), a driving gear (5), a moving rod (6) and two limiting clamping sleeves (7); the rotating motor (4) is connected with the control module through the motor driving circuit module; the position of a rotating motor (4) is fixed, a driving gear (5) is fixedly connected to the end part of a driving rod of the rotating motor (4), the driving gear (5) rotates along with the rotation of the driving rod on the rotating motor (4), a moving rod (6) sequentially penetrates through two limiting clamping sleeves (7), the two limiting clamping sleeves (7) are fixed in position, insections are arranged on one surface of the moving rod (6) along the linear direction of the moving rod, and the insections on the moving rod (6) are matched with the insections of the driving gear (5); the insection surface of the moving rod (6) faces the driving gear (5), insections on the moving rod (6) are meshed with insections of the driving gear (5), and the moving rod (6) rotates along with the driving of the rotating motor (4) to the driving gear (5) under the limit of the two limit cutting sleeves (7) and moves back and forth on the straight line where the moving rod is located.
5. The portable transcranial direct current stimulator according to claim 4, wherein: and a rotating motor (4) in the electric control moving rod (3) is a brushless rotating motor.
6. The portable transcranial direct current stimulator according to claim 1, wherein: the control module is a microprocessor.
7. The portable transcranial direct current stimulator according to claim 6, wherein: the microprocessor is an ARM processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920238426.9U CN209865035U (en) | 2019-02-26 | 2019-02-26 | Portable transcranial direct current stimulation instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920238426.9U CN209865035U (en) | 2019-02-26 | 2019-02-26 | Portable transcranial direct current stimulation instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209865035U true CN209865035U (en) | 2019-12-31 |
Family
ID=68953368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920238426.9U Expired - Fee Related CN209865035U (en) | 2019-02-26 | 2019-02-26 | Portable transcranial direct current stimulation instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209865035U (en) |
-
2019
- 2019-02-26 CN CN201920238426.9U patent/CN209865035U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206792806U (en) | A kind of low frequency transcutaneous stimulation instrument of multi-channel multi-parameter bipolarity constant current | |
| DE602006009800D1 (en) | THERAPY SYSTEM ADMINISTRATION | |
| US20120310318A1 (en) | Cranial-electro stimulator | |
| JP2016055206A (en) | Architectures for sharing of current supply sources in an implantable medical device | |
| US8938297B2 (en) | Implantable electroacupuncture device and method for treating cardiovascular disease | |
| CN101234231A (en) | A plurality of stimulating coil transcranial magnetic field stimulator | |
| CN103212157B (en) | Bipolar general nerve electric stimulation instrument | |
| CA2678533A1 (en) | Current steering for an implantable stimulator device involving fractionalized stimulation pulses | |
| CN108273191A (en) | It is avoided that the cranial nerve stimulating apparatus of overstimulation neuron | |
| CN209865035U (en) | Portable transcranial direct current stimulation instrument | |
| CN205252313U (en) | Synchronous amazing and record control system of brain deep stimulating electrode | |
| Urso et al. | An Ultra High-Frequency 8-Channel Neurostimulator Circuit With $\text {68}\% $ Peak Power Efficiency | |
| CN109173049B (en) | In-ear electronic pulse therapeutic instrument for hearing disorder disease | |
| CN201286940Y (en) | Via-skull magnetic field stimulator with multi stimulation coils | |
| JP2006223369A (en) | Electronic toothbrush | |
| MX2017004124A (en) | Process for establishing an electrostimulation protocol, and respective electrostimulation portable equipment using said protocol. | |
| WO2023151539A1 (en) | Brain medical analysis apparatus and control unit | |
| CN209075857U (en) | Electronic pulse therapeutic instrument in dysaudia illness ear | |
| CN208001227U (en) | A kind of Switching Power Supply driving power supply circuit and Switching Power Supply | |
| CN204395225U (en) | A kind ofly treat the adjustable microelectric current instrument of intensity | |
| ATE425584T1 (en) | DEVICE WITH A MOTOR WHOSE SPEED CAN BE CHANGED | |
| CN106955422A (en) | Rhinitis phototherapy instrument | |
| CN203389222U (en) | Electro-therapeutic cap | |
| TWI472354B (en) | Current stimulator | |
| CN202956615U (en) | Cardiac electrophysiological stimulation waveform distribution circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191231 Termination date: 20210226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |