CN216439827U

CN216439827U - Low-frequency electronic pulse therapeutic instrument

Info

Publication number: CN216439827U
Application number: CN202120313760.3U
Authority: CN
Inventors: 鄢杰
Original assignee: Henan Yiqi Biological Technology Co ltd
Current assignee: Henan Yiqi Biological Technology Co ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2022-05-06
Anticipated expiration: 2031-02-03

Abstract

The utility model provides a low-frequency electronic pulse therapeutic apparatus, which comprises a host and an electrode patch detachably connected with the host, wherein the host comprises a shell, a touch display screen arranged on the shell and a circuit board arranged in the shell, the circuit board comprises a main control module, a digital display circuit, a communication module and a pulse module, the digital display circuit, the communication module and the pulse module are in control connection with the main control module, the digital display circuit is connected with the touch display screen, the communication module is used for being connected with external intelligent equipment, and the pulse module is connected with the electrode patch; the shell is provided with one or more adjusting knobs for controlling the working state of the low-frequency electronic pulse therapeutic apparatus, the adjusting knobs are connected with digital encoders, and the digital encoders are connected with the main control module. The utility model adopts the digital encoder as an adjusting component to change the output quantity. The increased and decreased output quantity can be accurately set without causing variation in output energy. The pulse output is precisely controlled, the voltage error is reduced, and the stability is enhanced.

Description

Low-frequency electronic pulse therapeutic instrument

Technical Field

The utility model relates to the field of medical health-care equipment, in particular to a low-frequency electronic pulse therapeutic apparatus.

Background

The low-frequency pulse therapeutic apparatus generally refers to a modern electronic technology based on the meridian theory of traditional Chinese medicine, and utilizes pulse waves to stimulate the acupuncture points of the human body to achieve the purposes of treatment and health care. Besides a large amount of water, the human body also contains a plurality of electrolytes and non-electrolytes which can conduct electricity. The human body is actually a complex conductor of both a primary resistance and a capacitive nature. The existing electric therapeutic apparatus has the defects that the output impedance is mostly capacitive, the depth of electric energy inserted into the acupuncture points of the human body is not enough, and the discomfort is easily caused. When in use, the human-computer interface is simple, generally has no voltage value and position digital display, and can not analyze the treatment effect.

The utility model patent of the low frequency pulse therapeutic instrument based on intelligent platform with the name of the publication number CN202777456U utilizes the intelligent platforms such as cell-phone and computer, utilizes the characteristics of convenient operation and intuition of the intelligent machine, and this therapeutic instrument of lug connection carries out control treatment and management.

The utility model with the authorization publication number of CN208552864U is a middle and low frequency pulse therapeutic apparatus for treating and relieving the symptoms of primary hypertension, neurasthenia, gastroenteritis, scapulohumeral periarthritis, cervical spondylosis and rheumatic arthritis. Provides a therapeutic apparatus with multiple pulse output channels.

The utility model patent of the name of grant bulletin number CN208525650U for low frequency pulse therapeutic instrument is used for obstetrical department's rehabilitation equipment technical field specially, has designed non-contact IC-card read write module and has realized self-service charging function, has improved efficiency.

The low and medium frequency pulse therapeutic apparatus has relatively simple design and single function.

The mechanical potentiometer still adopted by most instruments on the market is used for adjusting the output strength of the instruments. Such potentiometers have a number of disadvantages: the amplitude of addition and subtraction cannot be accurately controlled, so that each step is changed too much, and the body is uncomfortable. If the potentiometer has a plurality of circles, the cost is high and the effect is not good. The key is that once the carbon film of the carbon brush of the potentiometer is damaged, a certain scale directly outputs the maximum voltage to cause damage to a human body, and the abrasion cannot be avoided. Therefore, a digital encoder is adopted as a regulating component to change the output quantity. The increased and decreased output quantity can be accurately set without causing variation in output energy. The pulse output is precisely controlled, the voltage error is reduced, and the stability is enhanced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a low-frequency electronic pulse therapeutic apparatus.

The technical scheme is as follows:

a low-frequency electronic pulse therapeutic apparatus comprises a host and an electrode patch detachably connected with the host, wherein the host comprises a shell, a touch display screen arranged on the shell and a circuit board arranged in the shell, the circuit board comprises a main control module, a digital display circuit, a communication module and a pulse module, the digital display circuit, the communication module and the pulse module are in control connection with the main control module, the digital display circuit is connected with the touch display screen, the communication module is used for being connected with external intelligent equipment, and the pulse module is connected with the electrode patch; the shell is provided with one or more adjusting knobs for controlling the working state of the low-frequency electronic pulse therapeutic apparatus, the adjusting knobs are connected with digital encoders, and the digital encoders are connected with the main control module.

Furthermore, the main control module comprises a microcontroller, and a crystal oscillator circuit, a three-terminal voltage stabilizing circuit and a reset circuit which are connected with the microcontroller;

the three-terminal voltage stabilizing circuit comprises a three-terminal voltage stabilizing block VR1 and voltage stabilizing filter capacitors C12-C15, wherein the voltage stabilizing filter capacitors C12 and C14 are connected in parallel and then serve as the input end of a three-terminal voltage stabilizing block VR1 to be connected with the positive end of a power supply, and the voltage stabilizing filter capacitors C13 and C15 are connected in parallel and then serve as the output end of the three-terminal voltage stabilizing block VR 1;

the reset circuit comprises an OR gate logic chip U2A and an OR gate logic chip U2B; the output end of the OR gate logic chip U2A is connected to two input ends of the OR gate logic chip U2B, and the output end of the OR gate logic chip U2A is connected with a reset pin of the microcontroller.

Furthermore, the main control module also comprises a communication chip circuit connected with the microcontroller. MAX485 can be selected as the chip of the communication chip circuit.

Furthermore, the main control module also comprises a clock control circuit. The DS1302 can be selected as the chip of the clock control circuit.

Furthermore, the main control module further comprises a power management module, the power management module comprises a power connection interface, a switching voltage regulator and a power conversion circuit module which are sequentially connected, and the power conversion circuit module comprises a single power level conversion chip. The chip of the single power supply level conversion chip can adopt MAX 232. The power conversion circuit module is connected with the three-terminal voltage stabilizing circuit.

Further, the communication module comprises a Bluetooth receiving control module. The Bluetooth receiving control module chip can select CC 2541.

Furthermore, the pulse module comprises a low-frequency selector, a low-frequency signal source circuit, an amplifying circuit, a transformer and a multi-channel audio socket which are sequentially connected, the main control module is connected with the low-frequency selection module, the multi-channel audio socket is positioned on the shell, the electrode patch is connected with a conductive wire, and the end part of the conductive wire is connected with an output plug matched with the multi-channel audio socket.

Further, the amplifying circuit comprises a triode BG, a crystal oscillator C and an R light emitting diode D. The low frequency selector chip is optionally LM 358.

Further, the casing is made of plastic materials, the circuit board comprises a bidirectional diode protection circuit, the bidirectional diode protection circuit comprises a power adapter with AC 100-240V voltage and current input, the power adapter is used for reducing the voltage to a safe voltage of 12V, an insulator inside the bidirectional diode protection circuit and the casing form basic insulation, and auxiliary insulation is arranged between the power adapter and the intermediate circuit.

Compared with the prior art, the utility model has the beneficial effects that:

1. the novel circuit board uses a transformer to replace an inductor to generate electronic pulse by utilizing an excitation current principle; most of the similar products in the market use an inductor to generate a low-frequency pulse source, and the utility model uses a transformer to replace the inductor. The waveform generator sends out low-frequency pulse signals, the low-frequency pulse signals are amplified by a circuit, the amplified signals are input into a micro transformer to be boosted, and a low-frequency pulse source with specific frequency and pulse width is produced, so that good permeability is obtained, the problem that stimulation stays on cortex and cannot go deep is solved, the pricking feeling is reduced, and meanwhile, the cost is saved and the size is reduced.

2. Outputting in multiple paths; the requirement of simultaneously treating a plurality of parts is met, and the outputs of all the channels cannot interfere with each other. And also to keep the frequency and waveform perfectly synchronized.

3. The digital encoder precisely controls pulse output, reduces voltage error and enhances stability; mechanical potentiometers adopted by most instruments of the same type on the market are used for adjusting the output strength of the instruments. Such potentiometers have a number of disadvantages: the amplitude of addition and subtraction cannot be accurately controlled, so that each step is changed too much, and the body is uncomfortable. If the potentiometer has a plurality of circles, the cost is high and the effect is not good. The key is that once the carbon film of the carbon brush of the potentiometer is damaged, a certain scale directly outputs the maximum voltage to cause damage to a human body, and the abrasion cannot be avoided. The utility model adopts the digital encoder as an adjusting component to change the output quantity. The increased and decreased output quantity can be accurately set without causing variation in output energy. The pulse output is precisely controlled, the voltage error is reduced, and the stability is enhanced.

4. And the Bluetooth is used for connecting the time module and the mobile phone for control. The user utilizes bluetooth to connect the cell-phone procedure, supplements the treatment time with money, shows treatment remaining time on the screen, and time balance is supplemented with money, and the accessible uses smart mobile phone or other smart machine APP to connect bluetooth module, can realize with functions such as host computer display screen synchronous operation show, secondary development.

5. The system has the advantages of safety, power-on self-checking, operation process detection and excellent electrical insulation design.

6. Four treatment modes of ' ordinary ' ″ kneading ', ' pressing ' and ' vibrating ' are set at low frequency, a user can select according to personal conditions during treatment, treatment effects and comfort are improved, multiple treatment modes are provided for the user, treatment effects are enhanced, and better experience is obtained.

7. Realize the gloves function, the physiotherapy teacher need not oneself live working, and the electric current is direct to be conducted the patient's health through electrically conductive gloves. And the gloves can be contacted and separated at will, and the high voltage can not be generated instantaneously to hurt the body.

Drawings

Fig. 1 is a schematic structural diagram of a low-frequency electronic pulse therapeutic apparatus.

Fig. 2 is a working principle diagram of the low-frequency electronic pulse therapeutic apparatus.

Fig. 3 is a schematic diagram of the signal flow in the low frequency electric pulse therapeutic apparatus.

Fig. 4 is a schematic diagram of the operation of the main control module.

Fig. 5 is a circuit diagram of a reset circuit.

Fig. 6 is a circuit diagram of a three-terminal regulator circuit board.

Fig. 7 is a schematic diagram of a pulse module.

Fig. 8 is a graph showing the variation of the output pulse voltage with time in the "normal" mode.

Fig. 9 is a graph showing the variation of the output pulse voltage with time in the "kneading" mode.

Fig. 10 is a graph of output pulse voltage versus time in the "press" mode.

Fig. 11 is a graph of output pulse voltage versus time in the "vibrate" mode.

Fig. 12 is an electrical insulation diagram.

Fig. 13 is a schematic diagram of a power-on self-test procedure of the low-frequency electronic pulse therapeutic apparatus.

FIG. 14 is a schematic diagram of the low frequency electronic pulse therapeutic apparatus for monitoring the output voltage and current.

The figure comprises a host 1, an electrode patch 2, a casing 3, a touch display screen 4, an adjusting knob 5, a conducting wire 6, a multi-channel audio socket 7 and a plug 8.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, the utility model provides a low-frequency pulse therapeutic apparatus, which comprises a host 1 and an electrode patch 2 detachably connected with the host 1, wherein the host 1 comprises a casing 3, a touch display screen 4 arranged on the casing 3 and a circuit board arranged in the casing 3, the circuit board comprises a main control module, a digital display circuit, a communication module and a pulse module, the digital display circuit, the communication module and the pulse module are in control connection with the main control module, the digital display circuit is connected with the touch display screen, the communication module is used for being connected with external intelligent equipment, and the pulse module is connected with the electrode patch 2; the machine shell 3 is provided with one or more adjusting knobs 5 for controlling the working state of the low-frequency electronic pulse therapeutic apparatus, the adjusting knobs 5 are connected with digital encoders, and the digital encoders are connected with the main control module.

Fig. 2 is a working schematic diagram of the low-frequency electronic pulse therapeutic apparatus, wherein the touch display screen is used for converting a user operation signal into an electric signal and transmitting the electric signal to the main control module; or the mobile terminal mobile phone and other intelligent equipment interact with the main control module through the communication module, and transmit the electric signal to the main control module, and the main control module sends a control command to the pulse module according to the received electric signal; the pulse module is connected with the electrode patch 2 and is used for transmitting low-frequency pulses to the part needing to be treated according to the control command.

The adjusting knob 5 is connected with a digital encoder, the signal flow direction of the low-frequency electronic pulse therapeutic apparatus is schematically shown in fig. 3, the digital encoder or the touch display screen generates pulse signals, the pulse signals sequentially pass through the main control module and the pulse module, and after pulse current is generated, the pulse signals act on acupuncture points of a human body from the electrode patch 2. The digital encoder precisely controls pulse output, reduces voltage error and enhances stability; mechanical potentiometers adopted by most instruments of the same type on the market are used for adjusting the output strength of the instruments. Such potentiometers have a number of disadvantages: the amplitude of addition and subtraction cannot be accurately controlled, so that each step is changed too much, and the body is uncomfortable. If the potentiometer has a plurality of circles, the cost is high and the effect is not good. The key is that once the carbon film of the carbon brush of the potentiometer is damaged, a certain scale directly outputs the maximum voltage to cause damage to a human body, and the abrasion cannot be avoided. The utility model adopts the digital encoder as an adjusting component to change the output quantity. The increased and decreased output quantity can be accurately set without causing variation in output energy. The pulse output is precisely controlled, the voltage error is reduced, and the stability is enhanced.

The touch display screen is connected with the digital display circuit, and specifically, the digital display circuit comprises a screen interface, a debugging interface and a program import interface. The data buffer of each serial port is physically divided into two independent sending and receiving buffers, and data can be sent and received simultaneously. The sending buffer can only write data, and the receiving buffer can only read data.

As shown in fig. 4, the main control module includes a microcontroller, a clock control circuit, a communication chip circuit, a crystal oscillator circuit, a three-terminal voltage regulator circuit module, a reset circuit, and a power conversion circuit.

The core of the main control module is a microcontroller, a single chip of the microcontroller is STC15F2K61S2, the model of the chip used by the microcontroller is 12C5A60S2, and the microcontroller has high speed/low power consumption/super-strong anti-interference performance for a single chip of a machine period and aims at motor control and strong interference occasions. The working voltage of the microcontroller is 3.3V, the control board obtains 5V direct current voltage from the outside, and the voltage is converted into 3.3V direct current voltage through the three-terminal voltage stabilizing block VR 1. C12, C13, C14 and C15 are voltage-stabilizing filter capacitors at the input end and the output end of the three-terminal voltage-stabilizing block. And the crystal oscillator YY (using 110592 crystal oscillator) is connected with pins of the microcontroller through wires, so that a clock frequency signal necessary for executing instructions is ensured, an accurate communication baud rate is obtained, and the microcontroller can accurately execute program codes.

As shown in fig. 5, the reset circuit includes a dual or gate logic chip U2A, a capacitor C5 connected to an input terminal of the dual or gate logic chip U2B, a resistor R3, and a diode D1; the output end of the or gate logic chip U2A is respectively connected to two input ends of the or gate logic chip U2B to serve as the output end of a reset circuit, and the output end of the reset circuit is connected with a reset pin of the microcontroller U1. The reset circuit of the microcontroller U1 is composed of a logic chip U2, a resistor R3, a capacitor C5 and a diode D1. The U2 is a two-way or gate logic chip, and after the system is powered on, since the capacitor C5 is equivalent to a short circuit at the moment of power-on, the 1# and 2# input terminals of the U2 are at low level, and the 6# output terminal of the U2 also outputs low level at the same time. Since the # 6 output of U2 is connected to the # 57 reset pin of microcontroller U1, the microcontroller enters a reset state at this time. With the continuous charging of the capacitor C5, the voltage at the 1# and 2# input terminals of the U2 gradually rises back to 3.3V, and the 57# reset pin of the microcontroller U8 also returns to the high level state, so that the power-on reset of the system is finished, and the microcontroller enters the normal operating state. Diode D1 provides a fast discharge path for capacitor C5.

The model of the clock control circuit chip is DS1302, the VCC end is connected with p15, p16 and p17, 2-4 pins of the clock chip are connected with a crystal oscillator, RST is a reset pin, VCC is a power supply pin, and second, minute, hour, day, month and year information is provided in real time.

The communication chip circuit chip is MAX485, the single-chip microcontroller chip is connected with the communication chip circuit chip interface chip, and is respectively connected with the single-chip microcontroller chip during connection, and when the logic is 0, the device is in a receiving state; when the logic 1 is realized, the device is in a sending state, so that two

pins

2 and 3 of the U4 interface chip are controlled by only using the 18 pins of the single chip micro control chip; one signal controls the reception and transmission of MAX 485.

The power management module comprises a power connection interface, a switching voltage regulator and a power conversion circuit. The power supply conversion circuit comprises a single power supply level conversion chip, the model of the chip is MAX232, the three-terminal voltage stabilizing circuit module 5 comprises a three-terminal voltage stabilizing tube GND and a voltage stabilizing capacitor T5-T7, the voltage stabilizing tube T5 is used as the input end of the three-terminal voltage stabilizing tube VIN to be connected with the positive end of a power supply, and the output end of a voltage stabilizing tube end voltage stabilizing block VOUT is connected with the output end of a single power supply level conversion chip U10 designed in a quasi-serial port mode to be connected to voc. The three-terminal voltage stabilizing circuit is used for overcurrent and overheating of the circuit, protecting the circuit and performing filtering and rectification.

As shown in fig. 6, the three-terminal regulator circuit board circuit includes a three-terminal regulator block VR1 and regulator filter capacitors C12-C15, the regulator filter capacitors C12 and C14 are connected in parallel and then serve as the input terminal of the three-terminal regulator block VR1 to be connected to the positive terminal of the power supply, and the regulator filter capacitors C13 and C15 are connected in parallel and then serve as the output terminal of the three-terminal regulator block VR 1. The three-terminal voltage stabilizing block VR1 converts 5V DC voltage into 3.3V DC voltage to provide power for the microcontroller.

The communication module comprises a Bluetooth receiving control module. The Bluetooth receiving control module chip is CC2541, the Bluetooth serial port is connected with the singlechip to configure a Bluetooth protocol, and a singlechip program is compiled. The user can utilize the bluetooth to connect the cell-phone program, and treatment time is recharged, shows treatment remaining time on the screen, and time balance is recharged, also can be through using smart mobile phone or other smart machine APP to connect bluetooth module, realizes functions such as with host computer display screen synchronous operation demonstration, secondary development.

Fig. 7 is a schematic diagram of a pulse module, wherein the pulse module receives a command signal from a microcontroller, transmits the command signal to an amplifying circuit for amplification through a low-frequency selector and a low-frequency signal source circuit in a pulse circuit, inputs the command signal to a multi-channel transformer for boosting, generates low-frequency pulse micro-current with specific frequency and pulse width, and transmits the low-frequency pulse micro-current to a corresponding multi-channel audio socket 7 to form multi-channel output and produce a low-frequency pulse source with specific frequency and pulse width.

The pulse module comprises a pulse circuit board, a transformer and a multi-channel audio socket 7. The pulse circuit board comprises an amplifying circuit, a low-frequency signal source circuit and a low-frequency selector. The amplifying circuit comprises a triode BG, a crystal oscillator C and an R light emitting diode D, and the low-frequency selector chip is LM 358. The pulse circuit board is connected with a transformer, and the transformer is connected with a multi-channel audio socket 7. A transformer is used for replacing an inductor to generate a novel circuit board of electronic pulse; most of the similar products in the market use an inductor to generate a low-frequency pulse source, and the utility model uses a transformer to replace the inductor. The waveform generator sends out low-frequency pulse signals, the low-frequency pulse signals are amplified by a circuit, the amplified signals are input into a micro transformer to be boosted, and a low-frequency pulse source with specific frequency and pulse width is produced, so that good permeability is obtained, the problem that stimulation stays on cortex and cannot go deep is solved, the pricking feeling is reduced, and meanwhile, the cost is saved and the size is reduced.

As shown in fig. 1, the multi-channel audio jack 7 is located on the housing 3, the electrode patch 2 is connected with a conductive wire 6, and an output plug 8 adapted to the multi-channel audio jack 7 is connected to an end of the conductive wire 6. The utility model realizes multi-path output, meets the requirement of treating a plurality of parts simultaneously, and simultaneously, the outputs of all paths do not interfere with each other. And also to keep the frequency and waveform perfectly synchronized.

The gear of the low-frequency selector is set according to the treatment requirement. Fig. 8 is a graph showing the variation of the output pulse voltage with time in the "normal" mode, and after the output pulse voltage is adjusted to a certain value, the instrument keeps the value intensity until the end of the time. Fig. 9 is a graph showing the variation of the output pulse voltage with time in the kneading mode, and after the output pulse voltage is adjusted to a certain value, the instrument drops by 4 voltages at the voltage value and then rises to the initially adjusted voltage value, and the intensity value fluctuates in the interval. This process is repeated until the time is over. The kneading effect is simulated. Fig. 10 is a graph of output pulse voltage versus time in the "press" mode. After the pulse voltage value is adjusted to a certain value, the voltage stays for a period of time, then is rapidly returned to zero, and then is rapidly increased to the value state of the initial voltage, and the intensity is also floated up and down along with the initial voltage. The process is repeated until the time is over, and the pressing effect is simulated. Fig. 11 is a graph of output pulse voltage versus time in the "vibrate" mode. After the pulse voltage value is adjusted to a certain value, the voltage stays for a period of time, then is rapidly returned to zero, and then is rapidly increased to the value state of the initial voltage, and the intensity is also floated up and down along with the initial voltage. This process is repeated until the time is over. And simulating the vibration process. The utility model has the following low-frequency setting: the four treatment modes of 'ordinary', 'kneading', 'pressing' and 'vibrating' can be selected by a user according to personal conditions during treatment, so that the treatment effect and the comfort level are improved, a plurality of treatment modes are provided for the user, the treatment effect is enhanced, and better experience is obtained.

The circuit designed by the excitation circuit principle can better act on the traditional Chinese medicine acupoint stimulation treatment. The utility model utilizes the excitation current principle and uses a transformer to replace an inductor. The waveform generator sends out low-frequency pulse signals, the low-frequency pulse signals are amplified by a circuit, the amplified signals are input into a micro transformer to be boosted, and a low-frequency pulse source with specific frequency and pulse width is produced, so that good permeability is obtained, the problem that stimulation stays on cortex and cannot go deep is solved, the pricking feeling is reduced, and meanwhile, the cost is saved and the size is reduced. Most of the similar products in the market use inductors to generate low-frequency pulse sources.

The selection of the transformer as the boosting component of the circuit is only one element for ensuring strong output, and the unique design of the circuit is an important reason for exerting the maximum effect. In the existing instruments on the market, because the output is basically constant voltage or constant current, the common problem is that the intensity is not enough. When the body equivalent RC circuit is changed during constant voltage output, the charge around the body capacitance part is increased, and the voltage begins to increase. At this time, the external voltage is resisted by the voltage attached to the body capacitor, and insufficient power is continuously supplied to the external voltage, so that the effective charge accumulation is insufficient, and the external voltage does not reach the strength required by treatment in each pulse width stimulation period. That is, the stimulation is stronger and the stimulation cannot continuously enter the human body. The constant current output has another problem that a very large resistor needs to be connected in series inside the instrument, unnecessary loss is caused, and when the load is not in good contact, strong voltage can be formed, and potential safety hazards appear. In order to solve the great problem, the circuit adopts a triode and an operational amplifier to form an excitation circuit, so that the voltage and the current are enhanced on a boosting transformer, and the transformer is always kept in an overvoltage state. Because of the nature of the transformer, the strength requirements of the input vary by the requirements of the output. When the resistance and capacitance of the human body change to cause the transformer to require more energy to the input end, because the input end has enough energy to supply after being excited, the transformer can continuously output enough voltage and current on the changed body load, thereby ensuring that enough charge for stimulating the neuromuscular tissue can be supplied in a very short time. This is done without any generic product.

The present invention provides a glove function. In areas where patches are inconvenient to use, a physiotherapist conducts current therapy by contacting the patient's body with gloves is a very effective means. However, this function has many disadvantages when viewing various instruments on the market. Some gloves can not leave the human body at will in the electrifying process, otherwise strong voltage can be generated instantly to stimulate the skin, and stabbing pain and electric injury are caused. Some of them even need to guide high voltage through the physical therapist body, and can cause damage to the physical therapist body for a long time. So we realize our own unique glove function with the circuit: the physical therapist need not the electrified operation of oneself, and the electric current directly conducts the patient's health through electrically conductive gloves. And the gloves can be contacted and separated at will, and the high voltage can not be generated instantaneously to hurt the body.

As shown in fig. 12, the present invention is further configured with an electrical insulation protection, fig. 12 is an electrical insulation diagram, a: insulating B of the adapter: a bidirectional diode protection voltage (12V); si: represents an auxiliary insulation; ri: represents a reinforcing insulation; the shell is made of insulating plastic materials, auxiliary insulation is arranged between the power supply and the intermediate circuit, reinforced insulation is arranged between the intermediate circuit and the pulse application part, an AC 100-240V voltage and current input power adapter is arranged in the figure 12, an insulator for reducing the voltage to a safe voltage 12V is arranged in the power adapter, the shell made of the plastic materials forms basic insulation, auxiliary insulation is arranged between the power supply of the adapter and the intermediate circuit, and meanwhile, a bidirectional diode voltage protection principle is utilized to finally form double/reinforced insulation.

Each time the instrument is turned on, the present invention runs the instrument self-test program, as shown in fig. 13, to determine that each component is functioning properly. A first round: the program sends a "start" command to each way to place each way in an "operational enabled" state. The program then sends a "voltage add" command to each way and accepts the voltage values and key values returned by each way. And then the program judges whether the voltages and the key values of all paths are in the normal value range, if the voltages and the key values are normal, all the voltages and the key values pass through the first round, otherwise, the fault path is reported. And a second round: and the program sends an 'end' instruction to each path, if the voltage value and the key value are all zero, the second pass is carried out, and otherwise, an error prompt is reported for the fault path. And after two passes, if all the detection passes, otherwise, error reporting prompting is carried out on the fault road. When all the operation passes, the components of the whole instrument are proved to work normally and can be used.

In the running process of the instrument, damage of components or poor contact of patches and breakage of loss components such as connecting wires are inevitable events. Under the condition, the voltage and the current intensity output on the human body can be suddenly changed to cause discomfort of a patient, so that the situation becomes the most important thing to be solved during the research and development. After a great deal of long-term experiments and improvements, the protection function in the use process is finally realized, and the protection device is the only instrument with the protection function in the market. As shown in FIG. 14, during the use of the device, the detection process monitors the output voltage and current conditions in real time when the output end is in contact with the human body. Once the voltage and current of a certain path suddenly change and exceed the preset safety value and the voltage and current of the path do not accord with the output value set by the program, each path can immediately report to the detection program, meanwhile, the power supply of the path is immediately stopped, and a warning picture appears on a screen.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. A low-frequency electronic pulse therapeutic apparatus comprises a host and an electrode patch detachably connected with the host, wherein the host comprises a shell, a touch display screen arranged on the shell and a circuit board arranged in the shell, and is characterized in that the circuit board comprises a main control module, a digital display circuit, a communication module and a pulse module, wherein the digital display circuit, the communication module and the pulse module are in control connection with the main control module; the shell is provided with one or more adjusting knobs for controlling the working state of the low-frequency electronic pulse therapeutic apparatus, the adjusting knobs are connected with digital encoders, and the digital encoders are connected with the main control module.

2. The low-frequency electronic pulse therapeutic apparatus according to claim 1, wherein said main control module comprises a microcontroller, and a crystal oscillator circuit, a three-terminal voltage regulator circuit and a reset circuit connected with said microcontroller;

3. The low frequency electronic pulse therapy apparatus of claim 2, wherein said master control module further comprises a communication chip circuit connected to said microcontroller.

4. The low frequency electronic pulse therapy apparatus of claim 3, wherein said master control module further comprises a clock control circuit.

5. The low-frequency electronic pulse therapeutic apparatus according to claim 4, wherein the main control module further comprises a power management module, the power management module comprises a power connection interface, a switching voltage regulator and a power conversion circuit module which are sequentially connected, the power conversion circuit module comprises a single power level conversion chip, and the power conversion circuit module is connected with the three-terminal voltage stabilizing circuit.

6. The low frequency electronic pulse therapy apparatus of claim 1, wherein said communication module comprises a bluetooth reception control module.

7. A low frequency electronic pulse therapeutic apparatus according to any one of claims 1 to 6, wherein said pulse module comprises a low frequency selector, a low frequency signal source circuit, an amplifying circuit, a transformer and a multi-channel audio jack connected in sequence, said main control module is connected to said low frequency selection module, said multi-channel audio jack is located on the housing, said electrode patch is connected to a conductive wire, and the end of said conductive wire is connected to an output plug adapted to the multi-channel audio jack.

8. The low frequency electronic pulse therapeutic apparatus of claim 7, wherein the amplifying circuit comprises a transistor BG, a crystal oscillator C and an R light emitting diode D.

9. The low frequency electric pulse therapy apparatus according to claim 1, wherein said housing is made of plastic material, said circuit board comprises a bi-directional diode protection circuit, said bi-directional diode protection circuit comprises a power adapter for AC 100-240V voltage current input, said power adapter is used for reducing voltage to safe voltage 12V, an insulator inside said bi-directional diode protection circuit forms a base insulation with said housing, and an auxiliary insulation is provided between said power adapter and said intermediate circuit.