CN118178861A - Transcranial electric stimulator and electric stimulation wave generation method - Google Patents

Abstract

The present application relates to a transcranial electrical stimulator and a method for generating electrical stimulation waves. The transcranial electrical stimulator includes: an input module, a control module and an output module, wherein the input module is used to determine target wave parameters, the target wave parameters include target high-frequency carrier parameters and target low-frequency effective wave parameters, and the target wave parameters are sent to the control module; the control module includes a high-frequency wave generation module and a low-frequency wave generation module, the high-frequency wave generation module is used to generate a target high-frequency carrier according to the target high-frequency carrier parameters, the low-frequency wave generation module is used to generate a target low-frequency effective wave according to the target low-frequency effective wave parameters, the control module is used to output the target high-frequency carrier and the target low-frequency effective wave to the output module; the output module is used to perform superposition processing on the target high-frequency carrier and the target low-frequency effective wave to obtain the target wave, and output the target wave. The use of this method can improve the accuracy of transcranial electrical stimulation.

Description

Transcranial electrical stimulator and method for generating electrical stimulation waves

Technical Field

The present application relates to the field of electrical stimulation technology, and in particular to a transcranial electrical stimulator and an electrical stimulation wave generation method.

Background technique

Transcranial electrical stimulation is a technology that stimulates the brain through low-intensity trace currents to promote the secretion of neurotransmitters and hormones. The current transcranial electrical stimulation technology can be divided into two forms: direct current and alternating current, according to the different waveforms of the stimulation. Transcranial direct current stimulation is a technology that uses constant, low-intensity direct current (1-2 mA) to regulate the activity of cerebral cortical neurons; transcranial alternating current stimulation is a technology that transmits a given alternating current from the scalp to the affected neurons. Its principle is to induce long-term synaptic plasticity through synchronized brain wave oscillations, thereby regulating brain function/cognitive function. It is a relatively new type of transcranial microcurrent stimulation technology.

However, the current transcranial electrical stimulation technology will cause users to feel a tingling sensation when the current reaches 2mA. The insufficient current intensity leads to limited stimulation depth of transcranial electrical stimulation technology and the problem of insufficient stimulation accuracy.

Summary of the invention

Based on this, it is necessary to provide a transcranial electrical stimulator and an electrical stimulation wave generation method to address the above-mentioned technical problems.

In a first aspect, the present application provides a transcranial electrical stimulator, comprising an input module, a control module and an output module, wherein:

The input module is used to determine target wave parameters, which include target high-frequency carrier parameters and target low-frequency effective wave parameters, and send the target wave parameters to the control module;

The control module includes a high-frequency wave generating module and a low-frequency wave generating module, wherein the high-frequency wave generating module is used to generate a target high-frequency carrier according to the target high-frequency carrier parameter, and the low-frequency wave generating module is used to generate a target low-frequency effective wave according to the target low-frequency effective wave parameter, and the control module is used to output the target high-frequency carrier and the target low-frequency effective wave to the output module;

The output module is used to perform superposition processing on the target high-frequency carrier and the target low-frequency effective wave to obtain a target wave, and output the target wave.

In one of the embodiments, the target wave parameters include at least one of waveform shape, wave frequency, wave voltage intensity, wave current intensity, and wave output duration.

In one embodiment, the transcranial electrical stimulator includes a plurality of output channels, and the input module is further used to determine the target wave parameters of each of the output channels respectively;

The control module is also used to output the target wave corresponding to each output channel through each output channel respectively.

The high-frequency wave generating module includes a plurality of signal generators and a plurality of operational amplifiers.

The high-frequency wave generating module is further used to control each of the signal generators and each of the operational amplifiers to generate a target high-frequency carrier according to the target high-frequency carrier parameter.

In one embodiment, the waveform comprises a sinusoidal waveform;

The high-frequency wave generating module is further used to control the first signal generator to generate a first sine wave according to the target high-frequency carrier parameter when the waveform form is the sine wave waveform, and use the first sine wave as the target high-frequency carrier.

In one embodiment, the waveform morphology includes an enveloped sine wave waveform;

The high-frequency wave generating module is also used to control the second signal generator to generate a second sine wave, control the third signal generator to generate a third sine wave, and control the first operational amplifier to perform differential operation on the second sine wave and the third sine wave to obtain an enveloped sine wave, and use the enveloped sine wave as the target high-frequency carrier when the waveform form is the enveloped sine wave waveform.

In one embodiment, the waveform includes a superimposed sine wave waveform and a superimposed square wave waveform;

The high-frequency wave generating module is also used to control the fourth signal generator to generate a fourth sine wave or a first square wave according to the target high-frequency carrier parameters, control the multiple operational amplifiers to amplify the fourth sine wave or the first square wave respectively to obtain multiple intermediate sine waves or multiple intermediate square waves, superimpose the multiple intermediate sine waves or intermediate square waves to obtain a superimposed sine wave or a superimposed square wave, and use the superimposed sine wave or the superimposed square wave as the target high-frequency carrier.

In one embodiment, the transcranial electrical stimulator further includes a digital potentiometer, which is disposed between the control module and the output module.

The control module is used to set the resistance value of the digital potentiometer according to the wave current intensity or the wave voltage intensity, so that the actual current value of the target waveform matches the wave current intensity, and the actual voltage value of the target wave matches the wave voltage intensity.

In one embodiment, the transcranial electrical stimulator further includes a detection module, and the detection module is arranged in series with the output module.

The detection module is used to determine the actual current value of the target wave or the actual voltage value of the target wave, and send the actual current value or the actual voltage value to the control module;

The control module is used to reset the resistance value of the digital potentiometer when the actual current value does not match the wave current intensity, or when the actual voltage value does not match the wave voltage intensity.

In one embodiment, the transcranial electrical stimulator also includes an input/output interface and a power supply module, wherein the power supply module is charged through the input/output interface when the input/output interface is connected to a charging cable; and the output module outputs the target wave through the input/output interface when the input/output interface is connected to an output cable; the connection interface between the charging cable and the input/output interface is the same as the connection interface between the output cable and the input/output interface.

In one embodiment, the control module is further used to perform a connection test on the input/output interface to obtain a test result, and when the test result indicates that the input/output interface is connected to the output cable, output the target high-frequency carrier and the target low-frequency effective wave to the output module; or, when the test result indicates that the input/output interface is not connected to the output cable, not output the target high-frequency carrier and the target low-frequency effective wave.

In one embodiment, the control module is further configured to continuously output the target high-frequency carrier wave and the target low-frequency effective wave to the output module within the wave output duration.

In one embodiment, the transcranial electrical stimulator further includes a display screen.

The control module is further used to output the target wave parameters and the operating status of the transcranial electrical stimulator to the display screen;

The power supply module is also used to output the battery power to the display screen;

The display screen is used to display the target wave parameters, the operating status and the battery power.

In a second aspect, the present application also provides a method for generating an electrical stimulation wave, which is applied to a transcranial electrical stimulator, and the method comprises:

Determining target wave parameters, wherein the target wave parameters include target high-frequency carrier parameters and target low-frequency effective wave parameters;

generating a target high-frequency carrier according to the target high-frequency carrier parameter, and generating a target low-frequency effective wave according to the target low-frequency effective wave parameter;

The target high-frequency carrier and the target low-frequency effective wave are superimposed to obtain a target wave, and the target wave is output.

The above-mentioned transcranial electrical stimulator and electrical stimulation wave generation method determine the target wave parameters required by the user through an input module, generate a high-frequency carrier and a low-frequency effective wave according to the target wave parameters, and synthesize the high-frequency carrier and the low-frequency effective wave into a target wave for output. Since the high-frequency carrier has strong penetration and weak stimulation, and the low-frequency effective wave has weak penetration but strong stimulation, after synthesizing the high-frequency carrier and the low-frequency effective wave, the target wave obtained can penetrate to the stimulation depth required by the user, and during stimulation, since the high-frequency carrier has weak stimulation, the low-frequency effective wave still plays the actual stimulation role. Therefore, the stimulation accuracy of the transcranial electrical stimulator can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a transcranial electrical stimulator according to an embodiment;

FIG2 is a schematic diagram of electrode placement in one embodiment;

FIG3 is a schematic diagram of a target wave in one embodiment;

FIG4 is a schematic diagram of a transcranial electrical stimulator in one embodiment;

FIG5 is a schematic diagram of a transcranial electrical stimulator in one embodiment;

FIG6 is a schematic flow chart of a method for generating an electrical stimulation wave in one embodiment.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

In one embodiment, as shown in Figure 1, a transcranial electrical stimulator is provided, including an input module 100, a control module 200 and an output module 300, wherein: the input module 100 is used to determine the target wave parameters, the target wave parameters include target high-frequency carrier parameters and target low-frequency effective wave parameters, and send the target wave parameters to the control module 200; the control module 200 includes a high-frequency wave generating module 210 and a low-frequency wave generating module 220, the high-frequency wave generating module 210 is used to generate a target high-frequency carrier according to the target high-frequency carrier parameters, the low-frequency wave generating module 220 is used to generate a target low-frequency effective wave according to the target low-frequency effective wave parameters, the control module 200 is used to output the target high-frequency carrier and the target low-frequency effective wave to the output module 300; the output module 300 is used to superimpose the target high-frequency carrier and the target low-frequency effective wave to obtain the target wave, and output the target wave.

In the embodiment of the present application, the input module 100 can determine the target wave parameters based on the user's input or preset parameters. The target wave parameters include target high-frequency carrier parameters and target low-frequency effective wave parameters. The target high-frequency carrier parameters are used to generate the target high-frequency carrier, and the target high-frequency carrier has a greater impact on the penetration depth of the target wave. The target low-frequency effective wave parameters are used to generate the target low-frequency effective wave, and the target low-frequency effective wave is used to effectively stimulate the user's brain. In one embodiment, the target wave parameters include at least one of waveform morphology, wave frequency, wave voltage intensity, wave current intensity, and wave output duration. Wherein the waveform morphology and wave frequency can respectively include parameters for the target high-frequency carrier and parameters for the target low-frequency effective wave, that is, the waveform morphology can include the target high-frequency carrier waveform morphology and the target low-frequency effective wave waveform morphology, and the wave frequency can include the target high-frequency carrier wave frequency and the target low-frequency effective wave wave frequency... and so on. In one embodiment, the target wave parameters include the target high-frequency carrier waveform morphology, the target high-frequency carrier wave frequency, the target low-frequency carrier wave frequency, the wave voltage intensity, the wave current intensity, and the wave output duration. The target high-frequency carrier wave parameters include the target high-frequency carrier wave shape, the target high-frequency carrier wave frequency, the wave voltage intensity, the wave current intensity, and the wave output duration. The target low-frequency effective wave parameters include the target low-frequency carrier wave frequency.

Exemplarily, the input module 100 may store preset wave parameters in advance, and the user may issue parameter adjustment instructions to the input module 100. The preset wave parameters may be preset by the user. The input module 100 may give priority to the preset wave parameters as the target wave parameters. If the user issues a parameter adjustment instruction for a preset wave parameter, the input module 100 may obtain the wave parameters specified by the user from the parameter adjustment instruction, and update the target wave parameters through the specified wave parameters. For example, taking the target high-frequency carrier parameters including the voltage peak, frequency, and waveform of the wave as an example, the input module 100 may first use the voltage peak (e.g., 5V), frequency (e.g., 98kHz), and waveform (e.g., sine wave) preset in the input module 100 as the target high-frequency carrier parameters after the user instructs the transcranial electrical stimulator to start output. If the user issues a parameter adjustment instruction for the frequency (e.g., adjusting the frequency to 96kHz), the input module 100 updates the frequency in the target wave parameters, and the updated target high-frequency carrier parameters are a voltage peak of 5V, a frequency of 96kHz, and a sine wave waveform. The embodiment of the present application does not specifically limit the manner in which the user issues a parameter adjustment instruction. For example, the input module 100 can be connected to a touch screen, and the user can issue parameter adjustment instructions by inputting the parameters required by the user on the touch screen; or the input module 100 can also be connected to an adjustment knob, and the user can issue parameter adjustment instructions by rotating the adjustment knob; or the input module 100 can also receive parameter adjustment instructions sent by the user from other terminal devices (such as personal computers, smart phones, etc.) through wireless communication methods such as Bluetooth.

The input module 100 may also store multiple sets of preset wave parameters, each set of preset wave parameters corresponding to an output mode of the transcranial electrical stimulator. The user may select the output mode of the transcranial electrical stimulator through the touch screen or the adjustment knob, and the transcranial electrical stimulator uses the preset wave parameters corresponding to the output mode as the target wave parameters.

The user can also issue a vague parameter adjustment instruction, that is, the user can specify the specific value of the wave parameter in the parameter adjustment instruction, but specify the user's demand for adjusting the current target wave (for example, reducing the intensity of the current target wave (that is, changing the voltage peak of the high-frequency carrier and the low-frequency effective wave), or adjusting the stimulation depth of the current target wave (that is, changing the frequency of the high-frequency carrier), etc.), and the input module 100 can determine the strategy for adjusting the current wave parameters according to the user's demand for adjusting the current target wave, so as to obtain the target wave parameters. Exemplarily, the input module 100 can determine the strategy for adjusting the current wave parameters according to the historical target wave parameters used by the user during the current use of the transcranial electrical stimulator, and the historical parameter adjustment instructions issued by the user. For example, the input module 100 can determine the wave parameter range actually required by the user according to the next parameter adjustment instruction made by the user after using a certain wave parameter, and then adjust the target wave parameters within this wave parameter range according to the parameter adjustment instruction.

Taking the target high-frequency carrier parameter as an example, for example, the three most recent historical parameter adjustment instructions issued by the user before the current moment are ① increasing the voltage peak (equivalent to increasing the intensity of the target wave), and the voltage peak of the adjusted target high-frequency carrier parameter is A1; ② increasing the intensity of the target wave, and the voltage peak of the adjusted target high-frequency carrier parameter is A2 (A2 is greater than A1, and it can be determined that the voltage peak actually required by the user is greater than A1); ③ reducing the voltage peak, and the voltage peak of the adjusted target high-frequency carrier parameter is A3 (A3 is less than A2 and greater than A1, and it can be determined that the voltage peak actually required by the user is greater than A1 but less than A2), and the latest parameter adjustment instruction issued by the user is to increase the intensity of the target wave (it can be determined that the voltage peak actually required by the user is greater than A3 but less than A2), then the input module 100 can determine a voltage peak between A3 and A2 as the target wave parameter this time.

The input module 100 sends the target wave parameters to the control module 200, and the control module 200 generates a target high-frequency carrier according to the target high-frequency carrier parameters, and generates a target low-frequency effective wave according to the target low-frequency effective wave parameters. The frequency of the target high-frequency carrier is greater than the target low-frequency effective wave (for example, since the effective stimulation frequency of the brain is generally less than 80kHz, the frequency range of the target high-frequency carrier can be 98kHz±10%, so that the target high-frequency carrier will not affect the brain). The embodiment of the present application does not specifically limit the way in which the control module 200 generates the target high-frequency carrier and the target low-frequency effective wave. Exemplarily, the target high-frequency carrier and the target low-frequency effective wave can be generated by a digital chip. Compared with an analog circuit, the interference signal of the digital chip is small, the DC component is low, and the output of the ineffective waveform can be reduced.

The output module 300 performs superposition processing on the target high-frequency carrier and the target low-frequency effective wave to obtain the target wave that actually stimulates the user's brain, and outputs the target wave through the output interface on the transcranial electrical stimulator. An output cable can be connected to the output interface, and the output cable is connected to the scalp electrode. The user can receive the target wave output by the output module 300 by placing scalp electrodes on the head, as shown in Figure 2.

It should be noted that there may be many different ways to place scalp electrodes, such as placing a negative electrode between the eyebrows on the forehead, placing a positive electrode at the mastoid position behind the left and right ears, or placing the electrode at a specified position on the scalp. Different electrode placement positions have a certain impact on the accuracy of the target wave. The user can pre-set different preset wave parameters for different electrode placement methods, and select the electrode placement method for this electrical stimulation through the touch screen or adjustment knob. The input module 100 can obtain the preset wave parameters corresponding to the electrode placement method as the target wave parameters.

In one embodiment, the transcranial electrical stimulator includes multiple output channels, and the input module 100 is also used to determine the target wave parameters of each output channel respectively; the output module 300 is also used to output the target wave corresponding to each output channel through each output channel respectively. In the embodiment of the present application, when the transcranial electrical stimulator has multiple output channels, the target wave parameters can be determined for each channel respectively, and the target wave parameters between the output channels are independent of each other. The control module 200 can generate a target high-frequency carrier and a target low-frequency effective wave for each channel respectively, and the output module 300 then performs superposition processing on the target high-frequency carrier and the target low-frequency effective wave of each channel, and outputs the target wave corresponding to each channel through each channel respectively.

The transcranial electrical stimulator provided in the embodiment of the present application determines the target wave parameters required by the user through the input module 100, generates a high-frequency carrier and a low-frequency effective wave according to the target wave parameters, and synthesizes the high-frequency carrier and the low-frequency effective wave into a target wave for output. Since the high-frequency carrier has strong penetration and weak irritation, and the low-frequency effective wave has weak penetration but strong irritation, after synthesizing the high-frequency carrier and the low-frequency effective wave, the target wave obtained can penetrate to the stimulation depth required by the user, and during stimulation, since the high-frequency carrier has weak irritation, it is still the low-frequency effective wave that actually plays a stimulating role. Therefore, the stimulation accuracy of the transcranial electrical stimulator can be improved.

In one embodiment, the high-frequency wave generating module 210 includes a plurality of signal generators and a plurality of operational amplifiers. The high-frequency wave generating module 210 is further configured to control each signal generator and each operational amplifier to generate a target high-frequency carrier according to target high-frequency carrier parameters.

In the embodiment of the present application, the high-frequency wave generating module 210 generates a basic wave through a signal generator, and when the basic wave needs to be operated to generate a more complex waveform, the basic wave is operated and processed through an operational amplifier to obtain the final target high-frequency carrier. Different low-frequency effective waves may require high-frequency carriers of different waveforms, and different users have different adaptability to different high-frequency carriers. The specific selection of which waveform as the high-frequency carrier can be determined by the user according to actual needs.

In one embodiment, the waveform is a sine wave waveform, and the high-frequency wave generating module 210 is also used to control the first signal generator to generate a first sine wave according to the target high-frequency carrier parameters when the waveform is a sine wave waveform, and use the first sine wave as the target high-frequency carrier. In another embodiment, the waveform is an enveloped sine wave waveform, and the high-frequency wave generating module 210 is also used to control the second signal generator to generate a second sine wave, control the third signal generator to generate a third sine wave, control the first operational amplifier to perform differential operation processing on the second sine wave and the third sine wave, obtain an enveloped sine wave, and use the enveloped sine wave as the target high-frequency carrier. In another embodiment, the waveform is a superimposed sine wave waveform or a superimposed square wave waveform, and the high-frequency wave generating module 210 is also used to control the fourth signal generator to generate a fourth sine wave or a first square wave according to the target high-frequency carrier parameters, control multiple operational amplifiers to amplify the fourth sine wave or the first square wave respectively to obtain multiple intermediate sine waves or multiple intermediate square waves, superimpose the multiple intermediate sine waves or intermediate square waves to obtain a superimposed sine wave or a superimposed square wave, and use the superimposed sine wave or the superimposed square wave as the target high-frequency carrier.

In the embodiment of the present application, the high-frequency wave generating module 210 can support the generation of high-frequency carriers with four waveforms, including a high-frequency carrier with a sine wave waveform, a high-frequency carrier with an enveloped sine wave waveform, a high-frequency carrier with a superimposed sine wave waveform, and a high-frequency carrier with a superimposed square wave waveform. The signal generator can generate a basic wave with a waveform of a sine wave or a square wave. An enveloped sine wave can be obtained by performing computational processing on a sine wave through an operational amplifier, and a sine wave or a square wave in an alternating form, including a positive and negative bidirectional stimulation, can be obtained by performing computational processing on a sine wave or a square wave through an operational amplifier. The high-frequency carriers in the embodiments of the present application all include positive and negative bidirectional stimulation, which can balance the charge on the user's head and reduce the tingling sensation caused by the user when using it.

When the waveform parameter is a sine wave waveform, the high-frequency wave generating module 210 generates a first sine wave matching the target high-frequency carrier parameter through a first signal generator according to other parameters specified by the target high-frequency carrier parameter (such as amplitude, frequency, pulse duration, etc.), and uses the first sine wave as the target high-frequency carrier.

When the waveform parameter is an enveloped sine wave waveform, the high-frequency wave generating module 210 generates a second sine wave through a second signal generator and generates a third sine wave through a third signal generator according to other parameters specified by the target high-frequency carrier parameter. To synthesize an enveloped sine wave, the frequencies of the second sine wave and the third sine wave should be the same, or at least the difference is within a smaller preset range. The second sine wave and the third sine wave are output to the first operational amplifier, and the first operational amplifier performs a differential operation on the second sine wave and the third sine wave to obtain a symmetrical enveloped sine wave.

When the waveform parameter is a superimposed sine wave or a superimposed square wave, the high-frequency wave generating module 210 generates a fourth sine wave or a first square wave through a fourth signal generator according to other parameters specified by the target high-frequency carrier parameter. The fourth sine wave is amplified by different operational amplifiers to obtain multiple intermediate sine waves with different amplitudes, and then the multiple intermediate sine waves are superimposed to obtain a superimposed sine wave. Since the first square wave generated by the fourth signal generator is in a DC form and only includes positive stimulation, it is necessary to amplify the first square wave by different operational amplifiers to obtain multiple intermediate square waves with different amplitudes, and then the multiple intermediate square waves are superimposed to obtain a superimposed square wave in an AC form, and the superimposed square wave is used as the target high-frequency carrier. The specific number of operational amplifiers used for amplification and the amplitude of each intermediate square wave can be determined according to actual needs. For example, when a periodic square wave needs to be obtained, two operational amplifiers can be used, and an intermediate square wave with a larger amplitude is obtained by one operational amplifier, and an intermediate square wave with a smaller amplitude is obtained by another operational amplifier. The on and off of the middle square wave with a larger amplitude can be controlled by a control signal, and the middle square wave with a larger amplitude that is periodically on and off and the square wave with a smaller amplitude are superimposed to obtain a periodic square wave. See FIG3 , which is a schematic diagram of a target wave waveform obtained by superimposing different types of target high-frequency carriers and target low-frequency effective waves.

The transcranial electrical stimulator provided in the embodiment of the present application generates the target high-frequency carrier required by the user through a signal generator and an operational amplifier, and can support the generation of a variety of target high-frequency carriers with different waveforms, allowing the user to determine the required target high-frequency carrier type according to actual needs.

In one embodiment, as shown in Figure 4, the transcranial electrical stimulator also includes a digital potentiometer 400, which is arranged between the control module 200 and the output module 300. The control module 200 is used to set the resistance value of the digital potentiometer 400 according to the wave current intensity or the wave voltage intensity, so that the actual current value of the target waveform matches the wave current intensity, and the actual voltage value of the target wave matches the wave voltage intensity.

In the embodiment of the present application, the control module 200 can adjust the actual voltage value and the actual current value of the target wave output by the transcranial electrical stimulator by adjusting the resistance value of the digital potentiometer 400, so that the actual voltage value matches the wave voltage intensity, or the actual current value matches the wave current intensity. In the case where the target wave parameter only includes the wave voltage intensity or the wave current intensity, the parameters of the target wave are matched with the wave voltage intensity or the wave current intensity included in the target wave parameter. In the case where the target wave parameter includes the wave voltage intensity and the wave current intensity at the same time, if the actual voltage value can be matched with the wave voltage intensity and the actual current value can also be matched with the wave current intensity, the control module 200 can set the resistance value of the digital potentiometer 400 according to the standard. If the actual voltage value and the actual current value cannot be matched with the wave current intensity and the wave voltage intensity at the same time, the parameter with a higher priority in these two parameters can be selected as the matching object. For example, the priority of the wave voltage intensity can be higher than the priority of the wave current intensity, and the control module 200 preferentially matches the actual voltage value with the wave voltage intensity. If the actual current value cannot be matched with the wave current intensity at the same time, the parameter of the wave current intensity is ignored.

The embodiment of the present application does not specifically limit the method of setting the resistance value according to the wave voltage intensity and the wave current intensity, and any method that can determine the resistance value according to the wave voltage intensity and the wave current intensity is applicable to the embodiment of the present application. The target high-frequency carrier and the target low-frequency effective wave output by the control module 200 pass through the digital potentiometer 400 and are synthesized by the output module 300 to obtain the target wave with the wave current intensity and the wave voltage intensity.

In one embodiment, the transcranial electrical stimulator also includes a detection module 500, which is arranged in series with the output module 300. The detection module 500 is used to determine the actual current value of the target wave and the actual voltage value of the target wave, and send the actual current value or the actual voltage value to the control module 200; the control module 200 is used to reset the resistance value of the digital potentiometer 400 when the actual current value does not match the wave current intensity and/or the actual voltage value does not match the wave voltage intensity.

In the embodiment of the present application, a detection module 500 can be connected in series on the output path of the output module 300, and the detection module 500 can calculate the actual current value or the actual voltage value of the target wave through the voltage difference at both ends of the detection module 500 and its own resistance value. The detection module 500 can then send the actual current value or the actual voltage value back to the control module 200. The control module 200 can then adaptively adjust the resistance value of the digital potentiometer 400 according to the actual current value or the actual voltage value. For example, when the actual current value is less than the wave current intensity and the actual voltage value is also less than the wave voltage intensity, the resistance value of the digital potentiometer 400 is increased, and when the actual current value is greater than the wave current intensity and the actual voltage value is also greater than the wave voltage intensity, the resistance value of the digital potentiometer 400 is lowered.

The transcranial electrical stimulator provided in the embodiment of the present application controls the actual current value and the actual voltage value of the target wave through the digital potentiometer 400, and can output a target wave with an intensity that meets the user's needs.

In one embodiment, the transcranial electrical stimulator also includes an input-output interface and a power supply module 600. When the input-output interface is connected to a charging cable, the power supply module 600 is charged through the input-output interface; and when the input-output interface is connected to an output cable, the output module 300 outputs a target wave through the input-output interface; the connection interface between the charging cable and the input-output interface is the same as the connection interface between the output cable and the input-output interface.

In the embodiment of the present application, the transcranial electrical stimulator is charged and output through the input and output interfaces. The transcranial electrical stimulator uses a charging cable when charging, and uses an output cable when outputting. The charging cable and the output cable share a connection interface so that the transcranial electrical stimulator cannot output to the outside when charging, thereby improving the safety of the transcranial electrical stimulator. A TVS tube can also be set at the input and output interfaces for protection to prevent transient high-voltage shocks.

The power supply module 600 may include a battery and a power conversion circuit. The power conversion circuit is used to convert an external 220V voltage into a 5V voltage used for charging the battery. The power conversion circuit can also convert the 220V voltage into a 3.3V voltage for powering the control module 200.

In one embodiment, the control module 200 is also used to perform a connection test on the input and output interfaces to obtain a test result, and when the test result indicates that the input and output interfaces are connected to the output cable, the target high-frequency carrier and the target low-frequency effective wave are output to the output module 300; or, when the test result indicates that the input and output interfaces are not connected to the output cable, the target high-frequency carrier and the target low-frequency effective wave are not output.

In the embodiment of the present application, the control module 200 outputs the target high-frequency carrier and the target low-frequency effective wave only when the input-output interface is connected to the output cable. Before outputting the target high-frequency carrier and the target low-frequency effective wave, the control module 200 performs a connection test on the input-output interface. If the test result indicates that the input-output interface is not connected to the output cable, the control module 200 does not output the target high-frequency carrier and the target low-frequency effective wave, and can generate an error message for display (for example, through a display screen) to prompt the user to insert the output cable into the input-output interface. If the test result indicates that the input-output interface is connected to the output cable, the control module 200 can output the target high-frequency carrier and the target low-frequency effective wave to the output module 300.

The transcranial electrical stimulator provided in the embodiment of the present application allows the charging cable and the output cable to share the same connection interface, so that the target wave cannot be output when the transcranial electrical stimulator is charging, and allows the control module 200 to perform connection detection on the input and output interfaces, and outputs the target wave only when the input and output interfaces are connected to the output cable, thereby improving the safety of the transcranial electrical stimulator.

In one embodiment, the control module 200 is further configured to continuously output the target high-frequency carrier wave and the target low-frequency effective wave to the output module 300 within the wave output duration.

In the embodiment of the present application, the transcranial electrical stimulator provides a timing function. The control module 200 continuously outputs the target high-frequency carrier and the target low-frequency effective wave within the wave output duration specified by the user, and controls the transcranial electrical stimulator to power off after the wave output duration ends.

In one embodiment, the transcranial electrical stimulator also includes a display screen 700, and the control module 200 is also used to output the target wave parameters and the operating status of the transcranial electrical stimulator to the display screen 700; the power supply module 600 is also used to output the battery power to the display screen 700; the display screen 700 is used to display the target wave parameters.

In the embodiment of the present application, the transcranial electrical stimulator includes a display screen 700 for externally displaying information. The display screen 700 is connected to the control module 200 and the power supply module 600. The control module 200 can output the target wave parameters and the operating state of the transcranial electrical stimulator to the display screen 700, and the display screen 700 displays the target wave parameters and the operating state. The operating state refers to whether the transcranial electrical stimulator is currently outputting and whether the output is normal. When the control module 200 outputs the target high-frequency carrier and the target low-frequency effective wave to the output module 300, the operating state is set to outputting, and when the target high-frequency carrier and the target low-frequency effective wave are not output to the output module 300, the operating state is set to idle; and when the actual current value and the wave current intensity do not match, or the actual voltage value and the wave voltage intensity do not match, the operating state can be set to abnormal output, and when the actual current value and the wave current intensity match, or the actual voltage value and the wave voltage intensity match, the operating state is set to normal output, so that the user can see whether the transcranial electrical stimulator is currently outputting normally.

The user can pre-set the target wave parameters that need to be displayed on the display screen 700. For example, the voltage peak value, frequency, etc. of the current target wave can be displayed on the display screen 700. In the case of a timing function, the display screen 700 can also display the current remaining output duration. The display screen 700 can also be connected to the power supply module 600 to display the current remaining power. The charging indication, power supply indication and output indication can also be displayed on the display screen 700. When the power supply module 600 is charging, the power supply module 600 lights up the charging indication on the display screen 700; when the power supply module 600 normally supplies power to the transcranial electrical stimulator, the power supply module 600 lights up the power supply indication on the display screen 700; when the control module 200 outputs the target high-frequency carrier and the target low-frequency effective wave, the control module 200 lights up the output indication on the display screen 700. Referring to Figure 5, it is a complete circuit diagram of an embodiment of the present application.

In one embodiment, a method for generating an electrical stimulation wave is provided, which is applied to a transcranial electrical stimulator. As shown in FIG6 , the method includes:

Step 602, determining target wave parameters, the target wave parameters including target high frequency carrier parameters and target low frequency effective wave parameters.

Step 604, generating a target high frequency carrier according to the target high frequency carrier parameter, and generating a target low frequency effective wave according to the target low frequency effective wave parameter.

Step 606, superimpose the target high-frequency carrier and the target low-frequency effective wave to obtain a target wave, and output the target wave.

In the embodiment of the present application, the transcranial electrical stimulator determines the target wave parameters, which include the target high-frequency carrier parameters and the target low-frequency effective wave parameters. The transcranial electrical stimulator may store preset wave parameters, and when the user does not indicate the setting method of the target wave parameters, the preset wave parameters may be used as the target wave parameters. The user may also set the target wave parameters through the parameter adjustment indication.

After determining the target wave parameters, the transcranial electrical stimulator generates a target high-frequency carrier and a target low-frequency effective wave. The frequency of the target high-frequency carrier is greater than the target low-frequency effective wave. The target high-frequency carrier is used to transport the target low-frequency effective wave to the target area that needs stimulation, and the target low-frequency effective wave is used to effectively stimulate the user's brain. The target high-frequency carrier and the target low-frequency effective wave are superimposed to obtain the target wave finally output by the transcranial electrical stimulator. Among them, the specific structure of the transcranial electrical stimulator, as well as the specific generation method of the target high-frequency carrier and the target low-frequency effective wave can be referred to the relevant description of the aforementioned embodiment, and the embodiments of the present application will not be repeated here.

The method for generating electrical stimulation waves provided in the embodiment of the present application determines the target wave parameters required by the user, generates a high-frequency carrier and a low-frequency effective wave according to the target wave parameters, and synthesizes the high-frequency carrier and the low-frequency effective wave into a target wave for output. Since the high-frequency carrier has strong penetration and weak irritation, and the low-frequency effective wave has weak penetration but strong irritation, after synthesizing the high-frequency carrier and the low-frequency effective wave, the target wave obtained can penetrate to the stimulation depth required by the user, and during stimulation, since the high-frequency carrier has weak irritation, the low-frequency effective wave still plays the actual stimulating role. Therefore, the stimulation accuracy of the transcranial electrical stimulator can be improved.

It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

In one embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above-mentioned method embodiments when executing the computer program.

In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims (14)

1. The transcranial electric stimulator is characterized by comprising an input module, a control module and an output module, wherein:

The input module is used for determining target wave parameters, wherein the target wave parameters comprise target frequency carrier parameters and target low-frequency effective wave parameters, and the target wave parameters are sent to the control module;

The control module comprises a high-frequency wave generation module and a low-frequency wave generation module, wherein the high-frequency wave generation module is used for generating a target frequency carrier according to the target high-frequency carrier parameter, the low-frequency wave generation module is used for generating a target low-frequency effective wave according to the target low-frequency effective wave parameter, and the control module is used for outputting the target high-frequency carrier and the target low-frequency effective wave to the output module;

And the output module is used for carrying out superposition processing on the target high-frequency carrier wave and the target low-frequency effective wave to obtain a target wave and outputting the target wave.

2. The method of claim 1, wherein the target wave parameters include at least one of waveform morphology, wave frequency, wave voltage intensity, wave current intensity, wave output duration.

3. The method of claim 1, wherein the transcranial electrical stimulation apparatus comprises a plurality of output channels, the input module further for determining target wave parameters for each of the output channels separately;

the output module is further configured to output, through each output channel, a target wave corresponding to each output channel.

4. The transcranial electrical stimulation apparatus according to claim 2, wherein the high frequency wave generating module comprises a plurality of signal generators and a plurality of operational amplifiers,

The high-frequency wave generation module is also used for controlling each signal generator and each operational amplifier to generate a target high-frequency carrier according to the target high-frequency carrier parameters.

5. The transcranial electrical stimulation apparatus according to claim 4, wherein the waveform morphology comprises a sine wave waveform;

The high-frequency wave generation module is further configured to control a first signal generator to generate a first sine wave according to the target high-frequency carrier parameter when the waveform is the sine wave, and take the first sine wave as a target high-frequency carrier.

6. The transcranial electrical stimulation apparatus of claim 4, wherein the waveform morphology comprises an envelope sine wave waveform;

the high-frequency wave generation module is further configured to control, when the waveform is the envelope sine wave, the second signal generator to generate a second sine wave, the third signal generator to generate a third sine wave, and the first operational amplifier to perform differential operation on the second sine wave and the third sine wave, so as to obtain an envelope sine wave, and use the envelope sine wave as a target frequency carrier.

7. The transcranial electrical stimulation apparatus according to claim 4, wherein the waveform morphology comprises a superimposed sine wave waveform and a superimposed square wave waveform;

The high-frequency wave generation module is further configured to control a fourth signal generator to generate a fourth sine wave or a first square wave according to the target high-frequency carrier parameter, control a plurality of operational amplifiers to amplify the fourth sine wave or the first square wave respectively to obtain a plurality of intermediate sine waves or a plurality of intermediate square waves, and perform superposition processing on the plurality of intermediate sine waves or the intermediate square waves to obtain a superposition sine wave or a superposition square wave, and use the superposition sine wave or the superposition square wave as a target high-frequency carrier.

8. The transcranial electrical stimulation apparatus according to claim 2, further comprising a digital potentiometer disposed between the control module and the output module,

The control module is used for setting the resistance value of the digital potentiometer according to the wave current intensity or the wave voltage intensity so as to enable the actual current value of the target waveform to be matched with the wave current intensity and enable the actual voltage value of the target waveform to be matched with the wave voltage intensity.

9. The transcranial electrical stimulation apparatus according to claim 6, further comprising a detection module disposed in series with the output module,

The detection module is used for determining an actual current value of the target wave or an actual voltage value of the target wave and sending the actual current value or the actual voltage value to the control module;

The control module is used for resetting the resistance value of the digital potentiometer under the condition that the actual current value is not matched with the wave current intensity or the actual voltage value is not matched with the wave voltage intensity.

10. The transcranial electrical stimulation apparatus according to claim 1, further comprising an input-output interface and a power supply module, the power supply module charging through the input-output interface with the input-output interface connected to a charging cable; the output module outputs the target wave through the input/output interface under the condition that the input/output interface is connected with an output cable; the connection interface of the charging cable and the input/output interface is the same as the connection interface of the output cable and the input/output interface.

11. The transcranial electrical stimulation apparatus according to claim 10, wherein the control module is further configured to perform connection detection on the input/output interface to obtain a detection result, and output the target high-frequency carrier and the target low-frequency effective wave to the output module when the detection result indicates that the input/output interface is connected to the output cable; or under the condition that the detection result indicates that the input/output interface is not connected with the output cable, the target high-frequency carrier wave and the target low-frequency effective wave are not output.

12. The transcranial electrical stimulation apparatus of claim 2, wherein the control module is further configured to continuously output the target high frequency carrier and the target low frequency effective wave to the output module for the duration of the wave output.

13. The transcranial electrical stimulation apparatus according to claim 10, further comprising a display screen,

The control module is also used for outputting the target wave parameters and the running state of the transcranial electric stimulation instrument to the display screen;

The power supply module is also used for outputting the electric quantity of the battery to the display screen;

And the display screen is used for displaying the target wave parameters, the running state and the battery electric quantity.

14. A method of generating electrical stimulation waves for use with the transcranial electrical stimulation apparatus of claim 1, the method comprising:

Determining target wave parameters, wherein the target wave parameters comprise target frequency carrier parameters and target low-frequency effective wave parameters;

Generating a target high-frequency carrier according to the target high-frequency carrier parameter, and generating a target low-frequency effective wave according to the target low-frequency effective wave parameter;

and superposing the target high-frequency carrier wave and the target low-frequency effective wave to obtain a target wave, and outputting the target wave.