阅读说明：本技术 一种电刺激强度调节装置、方法以及电刺激装置 (Electrical stimulation intensity adjusting device and method and electrical stimulation device ) 是由 何永正 张�杰 黄晓乐 陈凯 刘钢 于 2020-06-15 设计创作，主要内容包括：本申请公开了一种电刺激强度调节装置,包括控制器、波形调制数模转换器以及与电极垫中的各电极对一一对应的第一强度调节数模转换器；控制器,用于输出中频方波至波形调制数模转换器,并经由波形调制数模转换器转化后输出目标波形的中频波至各第一强度调节数模转换器,以及根据调节指令向第一强度调节数模转换器发送调节信号；第一强度调节数模转换器,用于当接收到控制器发送的调节信号时,依据调节信号调节中频波的电压值,并输出调节后的中频波至对应的电极对。该电刺激强度调节装置能够对电极垫中各电极对的电刺激强度进行差异化调节。本申请还公开了一种电刺激强度调节方法以及电刺激装置,均具有上述技术效果。(The application discloses an electrical stimulation intensity adjusting device which comprises a controller, a waveform modulation digital-to-analog converter and first intensity adjustment digital-to-analog converters, wherein the first intensity adjustment digital-to-analog converters correspond to electrode pairs in an electrode pad one by one; the controller is used for outputting the intermediate frequency square waves to the waveform modulation digital-to-analog converter, outputting the intermediate frequency waves of the target waveform to each first intensity adjustment digital-to-analog converter after the intermediate frequency square waves are converted by the waveform modulation digital-to-analog converter, and sending an adjustment signal to the first intensity adjustment digital-to-analog converter according to the adjustment instruction; and the first intensity adjusting digital-to-analog converter is used for adjusting the voltage value of the intermediate frequency wave according to the adjusting signal and outputting the adjusted intermediate frequency wave to the corresponding electrode pair when receiving the adjusting signal sent by the controller. The electrical stimulation intensity adjusting device can carry out differentiation adjustment on the electrical stimulation intensity of each electrode pair in the electrode pad. The application also discloses an electrical stimulation intensity adjusting method and an electrical stimulation device which both have the technical effects.)

1. An electrical stimulation intensity adjustment device, comprising:

the device comprises a controller, a waveform modulation digital-to-analog converter and a multi-path first intensity adjustment digital-to-analog converter; the first intensity adjusting digital-to-analog converters correspond to the electrode pairs in the electrode pads one by one;

the controller is used for outputting an intermediate frequency square wave to the waveform modulation digital-to-analog converter and sending an adjusting signal to the first intensity adjustment digital-to-analog converter according to an adjusting instruction;

the waveform modulation digital-to-analog converter is used for converting the intermediate frequency square wave into an intermediate frequency wave of a target waveform and outputting the intermediate frequency wave to each first intensity adjustment digital-to-analog converter;

and the first intensity adjustment digital-to-analog converter is used for adjusting the voltage value of the intermediate frequency wave according to the adjustment signal and outputting the adjusted intermediate frequency wave to the corresponding electrode pair when receiving the adjustment signal sent by the controller.

2. The electrical stimulation intensity adjustment device according to claim 1, characterized by further comprising:

a second intensity adjustment digital to analog converter; the second intensity adjustment digital-to-analog converter is respectively connected with the waveform modulation digital-to-analog converter and each first intensity adjustment digital-to-analog converter, and is used for adjusting the voltage value of the intermediate frequency wave output by the waveform modulation digital-to-analog converter according to the adjustment signal and outputting the adjusted intermediate frequency wave to each first intensity adjustment digital-to-analog converter when receiving the adjustment signal sent by the controller.

3. The electrical stimulation intensity adjustment device of claim 2, wherein the first intensity adjustment digital-to-analog converter and the second intensity adjustment digital-to-analog converter are 8-bit digital-to-analog converters.

4. The electrical stimulation intensity adjustment device according to claim 3, characterized by further comprising:

and the handheld control terminal is used for sending the adjusting instruction to the controller.

5. The electrical stimulation intensity adjusting device according to claim 4, wherein the handheld control terminal is a wireless handheld control terminal.

6. The electrical stimulation intensity adjusting device as claimed in claim 5, wherein the wireless handheld terminal is a wireless handheld terminal using RF433MHz electromagnetic wave as carrier.

7. The electrical stimulation intensity adjustment device according to claim 4, wherein the controller is a single chip microcomputer.

8. An electrostimulation device, characterized in that the electrostimulation device comprises the electrostimulation intensity regulating device as claimed in any one of claims 1 to 7, a multiplex amplification circuit, a plurality of transformers and an electrode pad having a plurality of electrode pairs; the electrode pairs correspond to the amplifying circuits and the transformers one by one.

9. An electrical stimulation intensity adjustment method is characterized by comprising the following steps:

receiving an adjusting instruction;

and sending an adjusting signal to the corresponding first intensity adjusting digital-to-analog converter according to the adjusting instruction, so that after the first intensity adjusting digital-to-analog converter receives the adjusting signal, the voltage value of the intermediate frequency wave output by the waveform adjusting digital-to-analog converter is adjusted according to the adjusting signal, and the adjusted intermediate frequency wave is output to the electrode pair corresponding to the first intensity adjusting digital-to-analog converter.

10. The electrical stimulation intensity adjustment method according to claim 9, characterized by further comprising:

and sending the adjusting signal to a second intensity adjusting digital-to-analog converter, so that the second intensity adjusting digital-to-analog converter adjusts the voltage value of the intermediate frequency wave output by the waveform modulating digital-to-analog converter according to the adjusting signal after receiving the adjusting signal, and outputs the adjusted intermediate frequency wave to each first intensity adjusting digital-to-analog converter.

Technical Field

The application relates to the technical field of electrotherapy, in particular to an electrical stimulation intensity adjusting device; also relates to an electrical stimulation intensity adjusting method and an electrical stimulation device.

Background

With the increasing social pace and the increasing work pressure, the incidence of low back pain is rapidly increasing, which may occur in any location on the back from the neck to the waist, be it a small portion, or spread to a large extent. The waist and back pain is a pertinacious disease difficult to cure in modern society due to the characteristics of difficult treatment, long treatment course, easy recurrence and the like, and the life quality of people is seriously influenced. A large number of clinical studies show that the medium-frequency electrical stimulation therapy has the effects of relieving pain, promoting blood circulation and dissipating inflammation.

At present, the intermediate frequency electrical stimulation device has a variety of varieties, but most of the intermediate frequency electrical stimulation devices are one or more pairs of independent electrode pairs, and can only carry out fixed-point stimulation on a certain pain point. And the electrical stimulation intensity cannot be adjusted differently, i.e. the electrical stimulation intensity output by all electrodes is the same. Generally, back electrotherapy is divided into three sites, the neck and shoulder, the back and the waist, which have different tolerance to electrical stimulation. Also, there may be some differences in electrical stimulation tolerance in different areas of the same site. Therefore, the three parts need to be treated by different electrical stimulation voltages in clinic, otherwise, the part with high tolerance degree may have obvious stabbing pain when the strength of the part with high tolerance degree is just proper, so that the treatment effect and the treatment experience of a patient are influenced. The scheme in which all electrodes output electrical stimulation of the same intensity has failed to meet the demand for back electrotherapy.

In addition, for most electrotherapy devices, the adjustment of the electrical stimulation intensity is realized by the main control interface of the operation device after the rehabilitation technician and the patient repeatedly communicate with each other, because the human body has adaptability to the electrical stimulation, the adjusted intensity is just proper when the treatment starts, after a few minutes, the patient can adapt to the intensity, the intensity needs to be increased moderately to achieve a better treatment effect, and in the whole treatment process, the rehabilitation technician needs to communicate with the patient for a plurality of times, so that the workload of the rehabilitation technician is greatly increased.

In view of the above, how to solve the above technical defects has become an urgent technical problem to be solved by those skilled in the art.

Disclosure of Invention

The utility model aims at providing an electro photoluminescence intensity adjusting device can adjust the electro photoluminescence intensity of each electrode pair respectively in the electrode pad, satisfies the demand of the electro photoluminescence of different electrode pair output different intensity, improves the validity and the comfort level of electrotherapy. Another object of the present application is to provide an electrical stimulation intensity adjusting method and an electrical stimulation apparatus, both having the above technical effects.

In order to solve the above technical problem, the present application provides an electrical stimulation intensity adjusting device, including:

the device comprises a controller, a waveform modulation digital-to-analog converter and a multi-path first intensity adjustment digital-to-analog converter; the first intensity adjusting digital-to-analog converters correspond to the electrode pairs in the electrode pads one by one;

the controller is used for outputting an intermediate frequency square wave to the waveform modulation digital-to-analog converter and sending an adjusting signal to the first intensity adjustment digital-to-analog converter according to an adjusting instruction;

the waveform modulation digital-to-analog converter is used for converting the intermediate frequency square wave into an intermediate frequency wave of a target waveform and outputting the intermediate frequency wave to each first intensity adjustment digital-to-analog converter;

and the first intensity adjustment digital-to-analog converter is used for adjusting the voltage value of the intermediate frequency wave according to the adjustment signal and outputting the adjusted intermediate frequency wave to the corresponding electrode pair when receiving the adjustment signal sent by the controller.

Optionally, the method further includes:

a second intensity adjustment digital to analog converter; the second intensity adjustment digital-to-analog converter is respectively connected with the waveform modulation digital-to-analog converter and each first intensity adjustment digital-to-analog converter, and is used for adjusting the voltage value of the intermediate frequency wave output by the waveform modulation digital-to-analog converter according to the adjustment signal and outputting the adjusted intermediate frequency wave to each first intensity adjustment digital-to-analog converter when receiving the adjustment signal sent by the controller.

Optionally, the first intensity adjustment digital-to-analog converter and the second intensity adjustment digital-to-analog converter are 8-bit digital-to-analog converters.

Optionally, the method further includes:

and the handheld control terminal is used for sending the adjusting instruction to the controller.

Optionally, the handheld control terminal is a wireless handheld control terminal.

Optionally, the wireless handheld terminal is a wireless handheld terminal using an RF433MHz electromagnetic wave as a carrier.

Optionally, the controller is a single chip microcomputer.

In order to solve the technical problem, the present application further provides an electrical stimulation device, which includes the electrical stimulation intensity adjusting device, a multi-path amplifying circuit, a plurality of transformers, and an electrode pad having a plurality of electrode pairs; the electrode pairs correspond to the amplifying circuits and the transformers one by one.

In order to solve the above technical problem, the present application further provides an electrical stimulation intensity adjusting method, including:

receiving an adjusting instruction;

and sending an adjusting signal to the corresponding first intensity adjusting digital-to-analog converter according to the adjusting instruction, so that after the first intensity adjusting digital-to-analog converter receives the adjusting signal, the voltage value of the intermediate frequency wave output by the waveform adjusting digital-to-analog converter is adjusted according to the adjusting signal, and the adjusted intermediate frequency wave is output to the electrode pair corresponding to the first intensity adjusting digital-to-analog converter.

Optionally, the method further includes:

and sending the adjusting signal to a second intensity adjusting digital-to-analog converter, so that the second intensity adjusting digital-to-analog converter adjusts the voltage value of the intermediate frequency wave output by the waveform modulating digital-to-analog converter according to the adjusting signal after receiving the adjusting signal, and outputs the adjusted intermediate frequency wave to each first intensity adjusting digital-to-analog converter.

The application provides an electro photoluminescence intensity adjusting device includes: the device comprises a controller, a waveform modulation digital-to-analog converter and a multi-path first intensity adjustment digital-to-analog converter; the first intensity adjusting digital-to-analog converters correspond to the electrode pairs in the electrode pads one by one; the controller is used for outputting an intermediate frequency square wave to the waveform modulation digital-to-analog converter and sending an adjusting signal to the first intensity adjustment digital-to-analog converter according to an adjusting instruction; the waveform modulation digital-to-analog converter is used for converting the intermediate frequency square wave into an intermediate frequency wave of a target waveform and outputting the intermediate frequency wave to each first intensity adjustment digital-to-analog converter; and the first intensity adjustment digital-to-analog converter is used for adjusting the voltage value of the intermediate frequency wave according to the adjustment signal and outputting the adjusted intermediate frequency wave to the corresponding electrode pair when receiving the adjustment signal sent by the controller.

Therefore, the electrical stimulation intensity adjusting device provided by the application is provided with a plurality of paths of first intensity adjusting digital-to-analog converters, and each first intensity digital-to-analog converter corresponds to each electrode pair in the electrode pad one by one. On the basis that the controller outputs the intermediate frequency square waves and the waveform modulation digital-to-analog converter converts the intermediate frequency square waves output by the controller into the intermediate frequency waves of target waveforms, aiming at each electrode pair in different electrode pads, the intermediate frequency waves can be converted to different degrees by using each first intensity adjustment digital-to-analog converter, so that the electrode pair corresponding to each first intensity adjustment digital-to-analog converter outputs electric stimulation with different intensities, the requirements of different electrode pairs for outputting electric stimulation with different intensities are met, discomfort brought to a patient when each electrode pair can only output electric stimulation with the same intensity is avoided, and the effectiveness and comfort level of the electrotherapy are effectively improved.

The electric stimulation intensity adjusting method and the electric stimulation device have the technical effects.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the prior art and the embodiments are briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic diagram of an electrical stimulation intensity adjusting device according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of another electrical stimulation intensity adjustment device provided in an embodiment of the present application;

fig. 3 is a schematic view of an electrode pad according to an embodiment of the present disclosure;

fig. 4 is a schematic diagram of an analog-to-digital converter according to an embodiment of the present disclosure;

fig. 5 is a schematic diagram of an amplifying circuit according to an embodiment of the present disclosure;

fig. 6 is a schematic flowchart of an electrical stimulation intensity adjustment method according to an embodiment of the present disclosure.

Detailed Description

The core of this application is to provide an electro photoluminescence intensity adjusting device, can adjust respectively to the electro photoluminescence intensity of each electrode pair in the electrode pad, satisfies the demand of the electro photoluminescence of different electrode pair output different intensity, improves the validity and the comfort level of electrotherapy. The other core of the application is to provide an electrical stimulation intensity adjusting method and an electrical stimulation device, which have the technical effects.

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1, fig. 1 is a schematic diagram of an electrical stimulation intensity adjusting apparatus according to an embodiment of the present application, and referring to fig. 1, the apparatus includes:

a controller 10, a waveform modulation digital-to-analog converter 20 and a multi-path first intensity adjustment digital-to-analog converter 30; the first intensity adjustment digital-to-analog converters 30 correspond to the electrode pairs in the electrode pads one to one;

a controller 10 for outputting an intermediate frequency square wave to the waveform modulation dac 20, and sending an adjustment signal to the first intensity adjustment dac 30 according to the adjustment instruction;

a waveform modulation digital-to-analog converter 20 for converting the intermediate frequency square wave into an intermediate frequency wave of a target waveform and outputting the intermediate frequency wave to each of the first intensity adjustment digital-to-analog converters 30;

the first intensity adjustment dac 30 is configured to adjust a voltage value of the intermediate frequency wave according to the adjustment signal when receiving the adjustment signal sent by the controller 10, and output the adjusted intermediate frequency wave to a corresponding electrode pair.

Specifically, the electrical stimulation intensity adjusting device provided by the present application mainly includes a controller 10, a waveform modulation digital-to-analog converter 20, and a multi-path first intensity adjustment digital-to-analog converter 30; each first intensity adjustment digital-to-analog converter 30 corresponds to each electrode pair in the electrode pad one by one, that is, the number of the first intensity adjustment digital-to-analog converters 30 is equal to the number of the electrode pairs in the electrode pad, and each first intensity adjustment digital-to-analog converter 30 is responsible for adjusting the electrical stimulation intensity of one electrode pair.

Specifically, the controller 10 generates and outputs a PWM signal having a duty ratio of 50%, i.e., an intermediate frequency square wave. And in a specific embodiment, the controller 10 is a single chip microcomputer, so that a PWM signal with a duty ratio of 50% can be generated by a timer of the single chip microcomputer. The intermediate frequency square wave generated by the controller 10 is output as a source signal to the waveform modulation digital-to-analog converter 20. Further, the amplitude of each pulse of the source signal is changed by modulating the conversion value of the digital-to-analog converter 20 with the high-speed refresh waveform, thereby forming an intermediate frequency wave of a specific waveform, i.e., a target waveform. Such as a symmetrical trapezoidal or sinusoidal wave, etc.

The intermediate frequency wave waveform-modulated by the waveform modulation dac 20 is further input to a reference voltage input terminal of each first intensity adjustment dac 30. When the intensity of the electrical stimulation output by one or some electrode pairs in the electrode pad needs to be adjusted, an adjustment instruction may be sent to the controller 10, and then the controller 10 sends an adjustment signal to the corresponding first intensity adjustment digital-to-analog converter 30 according to the adjustment instruction. After receiving the adjustment signal sent by the controller 10, the first intensity adjustment digital-to-analog converter 30 adjusts the voltage value of the intermediate frequency wave according to the adjustment signal, and outputs the adjusted intermediate frequency wave, and the intermediate frequency wave finally outputs to the corresponding electrode pair after passing through the amplifying circuit and the transformer in sequence.

Further, referring to fig. 2, on the basis of the above embodiment, the electrical stimulation intensity adjusting apparatus further includes: a second intensity adjustment digital-to-analog converter 40; the second intensity adjustment dac 40 is respectively connected to the waveform modulation dac 20 and each of the first intensity adjustment dacs 30, and is configured to adjust a voltage value of an intermediate frequency wave output by the waveform modulation dac 20 according to an adjustment signal when receiving the adjustment signal sent by the controller 10, and output the adjusted intermediate frequency wave to each of the first intensity adjustment dacs 30.

Specifically, in this embodiment, a two-stage digital-to-analog converter is used to adjust the electrical stimulation intensity. The second intensity adjustment digital-to-analog converter 40 is configured to implement adjustment of electrical stimulation intensity for all electrode pairs, and each of the first intensity adjustment digital-to-analog converters 30 is configured to implement adjustment of electrical stimulation intensity for different electrode pairs. The second intensity adjustment dac 40 is connected to the waveform modulation dac 20 and each of the first intensity adjustment dacs 30, respectively. At this time, the waveform modulation dac 20 outputs the intermediate frequency wave to the second intensity modulation dac 40, and further, the second intensity modulation dac 40 outputs the adjusted or unadjusted intermediate frequency wave to each of the first intensity modulation dacs 30.

When the intensity of the electrical stimulation output by all electrode pairs in the electrode pad needs to be adjusted, an adjustment instruction may be sent to the controller 10, and then the controller 10 sends a corresponding adjustment signal to the second intensity adjustment digital-to-analog converter 40 according to the adjustment instruction. After receiving the adjustment signal sent by the controller 10, the second intensity adjustment dac 40 adjusts the voltage value of the intermediate frequency wave according to the adjustment signal, and outputs the adjusted intermediate frequency wave to each of the first intensity adjustment dacs 30.

In one embodiment, the first intensity adjustment dac 30 and the second intensity adjustment dac 40 are 8-bit dacs.

In addition, the number of the first intensity adjustment digital-to-analog converters 30 is not limited in this application, and may be set appropriately according to the number of the electrode pairs in the actual electrode pad.

The above formula of the arrangement of the electrode pairs is shown in fig. 3, taking the number of the electrode pairs as an example of 12 pairs. The four electrode pairs correspond to one part, and the three parts are from top to bottom, neck shoulder, back and waist. The reference numerals 1 to 12 represent 12 electrode pairs. The reference numbers 1-4 are a group corresponding to the neck and shoulder, when the neck and shoulder treatment is selected, only the four electrode pairs normally output electric stimulation, and the other electrode pairs do not output electric stimulation. The reference numbers 5-8 are a group corresponding to the chest and back, when the chest and back treatment is selected, only the four electrode pairs can normally output, and the other electrode pairs do not output. Reference numerals 9 to 12 are a group corresponding to the waist, and when the waist treatment is selected, only the four electrode pairs normally output electric stimulation, and the other electrode pairs do not output electric stimulation. When the combined prescription is selected, all electrode pairs output electrical stimulation.

The intermediate frequency wave output by the waveform modulation dac 20 is input to the reference voltage terminal Vref0 of the second intensity modulation dac 40, and the conversion value of the second intensity modulation dac 40 is changed by adjusting the total intensity level (which may be in the range of 0 to 99 levels), so that the output end of the second intensity modulation dac 40 generates a waveform signal with an amplitude changing in equal proportion. For example, when an 8-bit dac is used, the voltage Vout0 at a certain time at the output of the second level shifter is Vref0 (X0/99) (Dmax 0/255). X0 denotes a shift position, and Dmax0 denotes a software-defined maximum conversion value. (X0/99) × Dmax0 represents the actual shift value of the selected shift position, and when the shift position X0 selects 99, the shift value reaches the maximum value Dmax0, it should be noted that the maximum capability of the output of the digital-to-analog converter is not necessarily reached, and only when Dmax0 is 255, the digital-to-analog converter outputs the maximum voltage, that is, the reference voltage is not modulated, and the voltage value output at this time is the reference voltage value.

The intermediate frequency wave output by the second intensity adjustment digital-to-analog converter 40 is further input to reference voltage terminals Vref 1-Vref 12 of 12 first intensity adjustment digital-to-analog converters 30DAC 1-DAC 12, the conversion values of DAC 1-DAC 12 of the first intensity adjustment digital-to-analog converters 30 are changed by adjusting the intensity-dividing gears X1-X12 (which can range from 0-99), so that the output end of the first intensity adjustment digital-to-analog converter generates a waveform signal with an amplitude which varies in equal proportion, for example, when an 8-bit analog-to-digital converter is adopted, the output voltage value Voutn at a certain moment of the output end of the first intensity adjustment digital-to-analog converter 30 is Vout0 (Xn/99) (Dmaxn/255); n is 0-12, Xn represents the gear, and Dmaxn represents the maximum conversion value specified by the software. (Xn/99) × Dmaxn represents the actual conversion value of the selected shift, when the shift Xn selects 99, the conversion value reaches the maximum value Dmaxn, it should be noted that, at this time, the maximum capability of the output of the digital-to-analog converter is not necessarily reached, only when Dmaxn is 255, the digital-to-analog converter outputs the maximum voltage, that is, the reference voltage is not modulated, and the voltage value output at this time is the reference voltage value.

Further, referring to fig. 4, the working principle of the digital-to-analog converter is as follows:

the dac shown in fig. 4 is a dual channel dac (TLC7528C), and one of the channels may be used for intensity adjustment, where a channel is taken as an example: the CS pin and DAC _ A/B are pulled low, enabling channel A. The single chip microcomputer generates a PWM signal with fixed frequency and duty ratio, the PWM signal is modulated by the waveform modulation digital-to-analog converter 20 to generate an intermediate frequency wave ZP _ PWM _ OUT with specific waveform, the intermediate frequency wave ZP _ PWM _ OUT is input to a reference voltage end REFA of TLC7528C, a corresponding voltage signal can be output at an OUTA end by changing a conversion value of an A channel, namely changing values from D0 to D7 shown in the figure, and the voltage signal is further input to an amplifying circuit shown in figure 5 and then outputs an OUAO 1 signal to a corresponding transformer.

For the case where the digital-to-analog converter is dual-channel, one channel may be used as the first intensity adjustment digital-to-analog converter, and the other channel may be used as the second intensity adjustment digital-to-analog converter.

Further, on the basis of the above embodiment, the electrical stimulation intensity adjusting apparatus further includes:

and the handheld control terminal is used for sending an adjusting instruction to the controller 10.

Specifically, in order to reduce the workload of the rehabilitation technician and provide convenience for the patient, in this embodiment, the electrical stimulation intensity adjusting device is further provided with a handheld control terminal, and by operating the handheld control terminal, for example, pressing a certain key, an adjusting instruction can be sent to the controller 10 to adjust the electrical stimulation intensity, so that the patient can appropriately adjust each electrode pair and the overall electrical stimulation intensity according to the own treatment feeling. In addition, the patient can be automatically stopped from treating under the condition of any discomfort in the treatment process without real-time nursing of the rehabilitation technician, thereby releasing part of the workload of the rehabilitation technician.

The handheld control terminal can be a wired handheld control terminal or a wireless handheld control terminal, and in a specific implementation manner, the handheld control terminal is a wireless handheld control terminal for convenience of use. In addition, the carrier wave mode capable of realizing short-distance wireless communication is various, such as infrared, RF433/315MHz, Bluetooth, WIFI, 4G and the like. Infrared is not easily interfered by external electromagnetic interference, but the transmission and the reception have directionality, have the patient when lying down the problem that can't aim at the receiver accurately. Bluetooth, WIFI and 4G are all general 2.4GHz electromagnetic waves, and interference signals from terminal equipment such as a mobile phone in the environment are more, so that certain risks exist. Therefore, in order to ensure the reliability of signal transmission, in a specific embodiment, the wireless handheld terminal is a wireless handheld terminal using RF433MHz electromagnetic wave as a carrier wave, that is, RF433MHz electromagnetic wave is selected as a carrier wave signal for signal transmission. The transmission flow mainly comprises terminal protocol coding, terminal carrier wave transmitting, host machine carrier wave receiving, host machine protocol decoding and host machine executing command, and for more detailed transmission flow, the method can refer to the prior related technology.

In summary, the electrical stimulation intensity adjusting device provided by the present application is provided with multiple first intensity adjusting digital-to-analog converters, and each first intensity digital-to-analog converter corresponds to each electrode pair in the electrode pad one to one. On the basis that the controller outputs the intermediate frequency square waves and the waveform modulation digital-to-analog converter converts the intermediate frequency square waves output by the controller into the intermediate frequency waves of target waveforms, aiming at each electrode pair in different electrode pads, the intermediate frequency waves can be converted to different degrees by using each first intensity adjustment digital-to-analog converter, so that the electrode pair corresponding to each first intensity adjustment digital-to-analog converter outputs electric stimulation with different intensities, the requirements of different electrode pairs for outputting electric stimulation with different intensities are met, discomfort brought to a patient when each electrode pair can only output electric stimulation with the same intensity is avoided, and the effectiveness and comfort level of the electrotherapy are effectively improved.

The application also provides an electrical stimulation device, which comprises the electrical stimulation intensity adjusting device, a multi-path amplifying circuit, a plurality of transformers and an electrode pad with a plurality of electrode pairs; the electrode pairs correspond to the amplifying circuits and the transformers one by one.

After the system is started, peripheral devices such as a display screen, related pins of a controller (singlechip), a system clock, a timer, a serial port and the like and related working parameters start to be initialized. After the initialization is finished, the display screen enters a treatment main interface to display parameters such as treatment time, treatment parts, treatment prescriptions, intensity and the like. And the relevant control is carried out by clicking the key. All the key-clicking operations can be acquired and processed by the single chip microcomputer, if a starting key is clicked, the single chip microcomputer changes corresponding system parameters or running states according to the acquired key information.

The point-and-click site selection can enter the treatment site setup interface and can set up the neck, shoulder, back, or waist according to the actual condition of the patient. After the start button is clicked, treatment is started, the total intensity is defaulted to 0, and no stimulation is output at the moment. Further, the clickable total intensity adjustment button may increase or decrease the total intensity value, thereby scaling up or decreasing the voltage value of the output electrical stimulation. If the whole electric stimulation feeling is better, only the output of the individual electrode pair is larger or smaller, and the corresponding sub-intensity button can be adjusted smaller or larger, so that the electric stimulation of all the electrode pairs can achieve a more comfortable effect.

The display screen can be any one of an OLED display screen, an LCD display screen and a touch screen. The key can be any one of a physical key, a knob key or a touch pad.

For the related content of the electrical stimulation intensity adjustment, details are not repeated herein, and reference may be made to the above embodiment of the electrical stimulation intensity adjustment device.

The present application also provides an electrical stimulation intensity adjusting method, as shown in fig. 6, the method includes:

s101: receiving an adjusting instruction;

s102: and sending an adjusting signal to the corresponding first intensity adjusting digital-to-analog converter according to the adjusting instruction, so that after the first intensity adjusting digital-to-analog converter receives the adjusting signal, the voltage value of the intermediate frequency wave output by the waveform modulating digital-to-analog converter is adjusted according to the adjusting signal, and the adjusted intermediate frequency wave is output to the electrode pair corresponding to the first intensity adjusting digital-to-analog converter.

On the basis of the above embodiment, optionally, the method further includes:

and sending an adjusting signal to the second intensity adjusting digital-to-analog converter so that the second intensity adjusting digital-to-analog converter adjusts the voltage value of the intermediate frequency wave output by the waveform modulating digital-to-analog converter according to the adjusting signal after receiving the adjusting signal, and outputting the adjusted intermediate frequency wave to each first intensity adjusting digital-to-analog converter.

For the introduction of the method provided by the present application, reference is made to the above-mentioned embodiment of the apparatus, which is not described herein again.

Because the situation is complicated and cannot be illustrated by a list, those skilled in the art can appreciate that there can be many examples in combination with the actual situation under the basic principle of the embodiments provided in the present application and that it is within the scope of the present application without sufficient inventive effort.

The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The technical solutions provided by the present application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.