CN113694378A - Interference electric therapeutic apparatus and working method thereof - Google Patents
Interference electric therapeutic apparatus and working method thereof Download PDFInfo
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- CN113694378A CN113694378A CN202111040059.XA CN202111040059A CN113694378A CN 113694378 A CN113694378 A CN 113694378A CN 202111040059 A CN202111040059 A CN 202111040059A CN 113694378 A CN113694378 A CN 113694378A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/36014—External stimulators, e.g. with patch electrodes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/36014—External stimulators, e.g. with patch electrodes
- A61N1/3603—Control systems
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/36014—External stimulators, e.g. with patch electrodes
- A61N1/3603—Control systems
- A61N1/36034—Control systems specified by the stimulation parameters
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Abstract
An interference electric therapeutic apparatus comprises a casing, a touch display screen, a plurality of groups of current intensity adjusting components and an air pump control switch are arranged on the front side panel of the casing, a power supply and a transformer are arranged in the casing, the air pump, vapor separation jar and control circuit board, the front side middle part of casing is provided with the heat preservation zone of heating, the front side panel middle part downside of casing is provided with a plurality of electrode delivery outlet, the lower side of casing is provided with accomodates the chamber, a plurality of electrode sucking disc and cavernosum have been placed in accomodating the chamber, each electrode sucking disc passes through the gas-electricity integral type pipeline and is connected with each electrode delivery outlet plug respectively, the extraction opening of air pump is connected with vapor separation jar's lateral part gas outlet, vapor separation jar's top air inlet is connected with main negative-pressure trachea, main negative-pressure trachea is connected with each electrode delivery outlet respectively through a plurality of negative-pressure branch trachea, vapor separation jar's outlet connection has the drain pipe. The invention has scientific design and reasonable structure, can treat two patients simultaneously and has high automation degree.
Description
Technical Field
The invention relates to the technical field of rehabilitation medical equipment, in particular to an interference electric therapeutic apparatus and a working method thereof.
Background
With the improvement of living standard, the aggravation of aging of population, the increase of sub-health population, the improvement of living standard of residents in China and the enhancement of medical care consciousness, the demand of medical appliance products is continuously increased, and particularly high-precision equipment with certain technical content, such as interference electricity, and the like, is adopted. The interference electric therapeutic apparatus is controlled by microcomputer, and utilizes the intermediate frequency signal produced by intermediate frequency oscillation generator to cross-input two groups of intermediate frequency sinusoidal currents with different frequencies into human body by means of electrodes to produce endogenous low-frequency modulated intermediate frequency current, i.e. interference electric current, which can reach tissue deep portion and can improve pain of deep tissue portion. The current stimulation method realizes the contraction stimulation to the motor nerve, and plays the roles of easing pain, promoting local blood circulation, improving the tension of gastrointestinal smooth muscles, improving the blood circulation of viscera and the like. Is suitable for lumbar spondylosis, cervical spondylosis, arthritis, scapulohumeral periarthritis, cervical nerve syndrome, sciatica, lumbar intervertebral disc prolapse, sprain, contusion, myofibrositis, postoperative intestinal adhesion, enteroparalysis, facial paralysis, and apoplexy sequelae. However, the existing interference electric therapeutic apparatus has too simple prescription for treating different parts and low automation degree.
Disclosure of Invention
The invention aims to provide an interference electric therapeutic apparatus and a working method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
an interference electric therapeutic apparatus comprises a casing, wherein a universal wheel with a locking mechanism is arranged around the bottom of the casing, a touch display screen, a plurality of groups of current intensity adjusting components and a gas pump control switch are arranged on the upper side of a front side panel of the casing, each group of current intensity adjusting components are arranged at intervals left and right and are positioned below the touch display screen, a power supply, a transformer, an air pump, a water-vapor separation tank and a control circuit board are arranged in the casing, a heat preservation heating layer is arranged in the middle of the front side of the casing, a plurality of electrode output ports are arranged on the lower side of the middle of the front side panel of the casing, a containing cavity which is positioned below the electrode output ports and is open at the front side is arranged on the lower side of the casing, a containing cover which is buckled at the front side port of the containing cavity is arranged on the lower side of the front side panel of the casing, a plurality of electrode suckers and sponges are arranged in the containing cavity, and each electrode sucker is respectively connected with each electrode output port in a plugging and unplugging way through a gas-electricity integrated pipeline, a drawing type drainage box which is positioned below the containing cavity and has an open top is embedded at the lower part of the front side of the casing, a power supply is respectively and electrically connected with the touch display screen, each group of current intensity adjusting components, a transformer, an air pump, a control circuit board, a heat preservation heating layer and an electrode output port through a plug-in connector, an air suction port of the air pump is connected with a side air outlet of the water-vapor separation tank, a main negative pressure air pipe is connected with an air inlet at the top of the water-vapor separation tank, a plurality of negative pressure branch air pipes are arranged on the main negative pressure air pipe, each negative pressure branch air pipe is respectively connected with each electrode output port, a water outlet of the water-vapor separation tank is connected with a drain pipe, a lower port of the drain pipe is positioned right above the drawing type drainage box, an electromagnetic valve is arranged on the drain pipe, the power supply is electrically connected with the electromagnetic valve, each electrode output port is correspondingly and is electrically connected with each electrode sucker through a gas-electricity integrated pipeline and is connected with a gas circuit, the control circuit board is respectively in signal connection with the touch display screen, the current intensity adjusting assemblies, the transformer, the air pump control switch, the heat preservation heating layer and the electromagnetic valve, and the air pump control switch is electrically connected with the air pump.
The current intensity adjusting component comprises an intensity display lamp strip, an intensity adjusting knob and a current output emergency stop button, the intensity display lamp strip, the intensity adjusting knob and the current output emergency stop button are arranged on the upper side portion of the front side panel of the shell at intervals from top to bottom and located below the touch display screen, the intensity display lamp strip is composed of a plurality of flat LED lamps which are vertically stacked, the intensity adjusting knob adopts a motor potentiometer with ten gears, the intensity display lamp strip, the intensity adjusting knob, the current output emergency stop button and one corresponding electrode sucker therein are connected in series, and the control circuit board is respectively connected with the intensity display lamp strip, the intensity adjusting knob and the current output emergency stop button are in signal connection.
The gas-electricity integrated pipeline comprises a conduit, the conduit is a hollow pipe with a two-layer structure, a surface insulating layer copper conductor is arranged in an inner layer pipe of the conduit, and a ventilation annular cavity is formed between an outer layer pipe and the inner layer pipe of the conduit.
The control circuit board comprises a rectification power circuit, a controller, a signal conditioning circuit, a temperature control circuit, a current detection circuit, a key circuit, a power amplification circuit, an air pump negative pressure detection circuit, an electromagnetic valve control circuit, an acousto-optic alarm circuit and an intensity detection circuit, wherein the power supply is electrically connected with the rectification power circuit, the rectification power circuit is respectively and electrically connected with the controller, the air pump and the touch display screen, the controller consists of a 1# single chip microcomputer, a 2# single chip microcomputer, a 3# single chip microcomputer and a 4# single chip microcomputer, the 1# single chip microcomputer, the 2# single chip microcomputer, the 3# single chip microcomputer and the 4# single chip microcomputer are STM32F (scanning tunneling microscope) single chip microcomputers, the 2# single chip microcomputer is used as a host, the 1# single chip microcomputer, the 3# single chip microcomputer and the 4# single chip microcomputer are used as slaves, the 2# single chip microcomputer is respectively in signal connection with the 1# single-serial communication circuit, the 3# single chip microcomputer and the 4# single chip microcomputer, and the 2# single-serial communication circuit is in signal connection with the touch display screen, 1# singlechip, 2# singlechip, 3# singlechip and 4# singlechip are independent respectively with signal conditioning circuit, temperature control circuit, current detection circuit, keying circuit, power amplification circuit, air pump negative pressure detection circuit, solenoid valve control circuit, audible and visual alarm circuit and intensity detection circuit signal connection, temperature control circuit and heat preservation zone of heating signal connection, current detection circuit respectively with intensity display lamp strip and intensity adjust knob signal connection, keying circuit respectively with current output emergency stop button and air pump control switch signal connection, solenoid valve control circuit and solenoid valve signal connection.
The heat preservation zone of heating includes the hot plate, hot plate horizontal fixed mounting is in the front side panel middle part of casing, the hot plate upper surface is provided with flourishing liquid recess, the tank bottom fixed surface of flourishing liquid recess installs a plurality of carbon fiber heating plates, be provided with the heating switch of each carbon fiber heating plate work of control on the front side panel of casing, the power is connected with heating switch and each carbon fiber heating plate electricity respectively, temperature control circuit respectively with each carbon fiber heating plate signal connection, key circuit and heating switch signal connection.
The suction emergency stop button of control air pump work is installed to the front side board of casing lateral part, and the right side board middle part of casing is provided with the switch of control power work, and keying circuit is connected with suction emergency stop button and switch signal respectively, and the right side board of casing lateral part is provided with the hangers, is provided with magnet on the hangers, and the hangers passes through magnet and adsorbs on the right side board of casing.
The touch display screen realizes the setting and monitoring of treatment modes, treatment channels, treatment time, treatment positions, treatment prescriptions and air pump negative pressure parameters in a direct touch mode of human fingers; the touch display screen directly controls system prompt tones, the system prompt tones comprise starting music, key tones, channel starting tones, channel ending tones and emergency stop tones, the touch display screen is divided into a left area and a right area, the two areas can treat two rehabilitation patients at the same time, and each area can realize the selection of a treatment mode.
A working method of an interference electric therapeutic apparatus specifically comprises the following steps:
the method comprises the following steps that firstly, a power switch is turned on to electrify the interference electric therapeutic apparatus, and the modulation depths of a 1# single chip microcomputer, a 2# single chip microcomputer, a 3# single chip microcomputer, a 4# single chip microcomputer, a touch display screen, an electromagnetic valve, an air pump control switch, a current output emergency stop button, a suction force emergency stop button, an intensity display light bar and a signal conditioning circuit are initialized;
secondly, checking whether each strength adjusting knob is reset or not, and starting reset operation if not;
thirdly, the 2# single chip microcomputer starts to send the last treatment information (including treatment time and prescription number) stored by the 2# single chip microcomputer to the touch display screen;
fourthly, starting a main circulation program, calling a serial port data processing function program, inquiring whether the touch display screen, the 1# single chip microcomputer, the 3# single chip microcomputer and the 4# single chip microcomputer have data to send by the 2# single chip microcomputer, if the touch display screen, the 1# single chip microcomputer, the 3# single chip microcomputer and the 4# single chip microcomputer have data to send, receiving the data according to a serial port, realizing the acquisition of electrode channel selection, treatment modes, treatment prescriptions and intensity control data, starting an emergency state processing function inquiry, starting an electrode falling detection function inquiry, starting an air pump output control function, starting a nixie tube display inquiry, starting a channel intensity detection function inquiry and the like; if the motor potentiometer of the intensity adjusting knob detects a voltage value, opening a corresponding channel as required; when the air pump control switch is detected to be pressed down, starting to detect the voltage value of the AD channel corresponding to the air pump, and if the detected voltage value is smaller than the set value of the screen, opening the electromagnetic valve, and performing air suction and pressurization on the electrode sucker through the air pump; if the current voltage value is detected to be higher than the set value, closing the electromagnetic valve and stopping air suction; when the current output emergency stop button is pressed, judging which current output emergency stop button is pressed, correspondingly closing the intensity adjusting knob, and stopping resetting the intensity adjusting knob after the motor potentiometer voltage of the intensity adjusting knob returns to zero.
The invention has scientific design and reasonable structure, can treat two patients simultaneously and has high automation degree.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram of signal connection between the controller and the touch display screen according to the present invention.
FIG. 3 is the control circuit diagram of the 1# single chip microcomputer of the invention.
Fig. 4 is a flow chart of the operation of the present invention.
Detailed Description
The embodiments of the present invention are further described below with reference to the drawings.
As shown in figures 1-4, an interference electric therapeutic apparatus comprises a casing 1, a universal wheel 2 with a locking mechanism is arranged around the bottom of the casing 1, a touch display screen 3, a plurality of current intensity adjusting components and a gas pump control switch 16 are arranged on the upper side of the front side panel of the casing 1, each current intensity adjusting component is arranged at intervals left and right and is positioned below the touch display screen 3, a power supply, a transformer, an air pump, a water-vapor separation tank and a control circuit board are arranged inside the casing 1, a heat preservation heating layer 17 is arranged in the middle of the front side of the casing 1, a plurality of electrode output ports 4 are arranged on the lower side of the middle of the front side panel of the casing 1, a containing cavity 5 which is positioned below the electrode output ports 4 and is open at the front side is arranged on the lower side of the casing 1, a containing cover 6 which is buckled at the front side port of the containing cavity 5 is arranged on the lower side of the front side panel of the casing 1, a plurality of electrode suckers and a sponge body are placed in the containing cavity 5, each electrode sucker is respectively connected with each electrode output port 4 in a plugging way through a gas-electricity integrated pipeline 7, a pull-type drainage box 8 which is positioned below the containing cavity 5 and has an open top is embedded at the lower part of the front side of the casing 1, a power supply is respectively connected with the touch display screen 3, each group of current intensity adjusting components, a transformer, an air pump, a control circuit board, a heat preservation heating layer 16 and the electrode output ports 4 through a plugging-type wire connector, an air suction port of the air pump is connected with a side air outlet of the water-vapor separation tank, a main negative pressure air pipe is connected with a top air inlet of the water-vapor separation tank, a plurality of negative pressure branch air pipes are arranged on the main negative pressure air pipe, each negative pressure branch air pipe is respectively connected with each electrode output port 4, a water outlet of the water-vapor separation tank is connected with a drainage pipe, and a lower port of the drainage pipe is positioned right above the pull-type drainage box 8, the drain pipe is provided with an electromagnetic valve, the power supply is electrically connected with the electromagnetic valve, each electrode output port 4 is correspondingly electrically connected with each electrode sucker through an integrated gas-electricity pipeline 7 and is connected with a gas circuit, the control circuit board is respectively in signal connection with the touch display screen 3, each group of current intensity adjusting components, the transformer, the air pump control switch 17, the heat preservation heating layer 16 and the electromagnetic valve, and the air pump control switch 17 is electrically connected with the air pump.
The current intensity adjusting assembly comprises an intensity display lamp strip 9, an intensity adjusting knob 10 and a current output emergency stop button 11, the intensity display lamp strip 9, the intensity adjusting knob 10 and the current output emergency stop button 11 are arranged on the upper side portion of the front side panel of the casing 1 from top to bottom at intervals and located below the touch display screen 3, the intensity display lamp strip 9 is composed of a plurality of vertically stacked flat LED lamps, the intensity adjusting knob 10 adopts a motor potentiometer with ten gears, the intensity display lamp strip 9, the intensity adjusting knob 10, the current output emergency stop button 11 and one corresponding electrode sucker therein are connected in series, and a control circuit board is respectively connected with the intensity display lamp strip 9, the intensity adjusting knob 10 and the current output emergency stop button 11 in a signal mode.
The gas-electricity integrated pipeline 7 comprises a conduit, the conduit is a hollow pipe with a two-layer structure, a surface insulating layer copper conductor is arranged in an inner layer pipe of the conduit, and a ventilation annular cavity is formed between an outer layer pipe and the inner layer pipe of the conduit.
The control circuit board comprises a rectification power circuit, a controller, a signal conditioning circuit, a temperature control circuit, a current detection circuit, a key circuit, a power amplification circuit, an air pump negative pressure detection circuit, an electromagnetic valve control circuit, an acousto-optic alarm circuit and an intensity detection circuit, wherein the power supply is electrically connected with the rectification power circuit, the rectification power circuit is respectively electrically connected with the controller, the air pump and the touch display screen 3, the controller consists of a 1# single chip microcomputer, a 2# single chip microcomputer, a 3# single chip microcomputer and a 4# single chip microcomputer, the 1# single chip microcomputer, the 2# single chip microcomputer, the 3# single chip microcomputer and the 4# single chip microcomputer are STM32F single chip microcomputers, the 2# single chip microcomputer is used as a host, the 1# single chip microcomputer, the 3# single chip microcomputer and the 4# single chip microcomputer are used as slaves, the 2# single chip microcomputer is respectively in signal connection with the 1# single chip microcomputer, the 3# single chip microcomputer and the 4# single chip microcomputer through a single serial port communication circuit, the 2# single chip microcomputer is in signal connection with the touch display screen 3 through a double serial port communication circuit, 1# singlechip, 2# singlechip, 3# singlechip and 4# singlechip are independent respectively with signal conditioning circuit, temperature control circuit, current detection circuit, keying circuit, power amplifier circuit, air pump negative pressure detection circuit, solenoid valve control circuit, audible and visual alarm circuit and intensity detection circuit signal connection, temperature control circuit and heat preservation zone of heating 16 signal connection, current detection circuit respectively with intensity display lamp strip 9 and intensity adjust knob 10 signal connection, keying circuit respectively with current output emergency stop button 11 and air pump control switch 17 signal connection, solenoid valve control circuit and solenoid valve signal connection. One of the double serial port communication circuits adopts a 232 communication mode and is specially used for electrifying a return value, and the other serial port adopts a TTL level mode and is specially used for sending a set value for a touch display screen 3 instruction.
The heat preservation zone of heating 16 includes the hot plate, hot plate horizontal fixed mounting is in the front side panel middle part of casing 1, the hot plate upper surface is provided with flourishing liquid recess, the tank bottom fixed surface of flourishing liquid recess installs a plurality of carbon fiber heating plates, be provided with the heating switch 12 of each carbon fiber heating plate work of control on the front side panel of casing 1, the power is connected with heating switch 12 and each carbon fiber heating plate electricity respectively, temperature control circuit respectively with each carbon fiber heating plate signal connection, key-press circuit and heating switch 12 signal connection. The heat preservation heating layer 16 adopts an electric drive temperature control mode for heating, which is the prior mature technology.
Suction emergency stop button 13 of control air pump work is installed to the front side board of casing 1 upper side portion, and the right side board middle part of casing 1 is provided with switch 14 of control power work, and key-press circuit is connected with suction emergency stop button 13 and switch 14 signal respectively, and the right side board upper side portion of casing 1 is provided with hangers 15, is provided with magnet (not shown) on hangers 15, and hangers 15 pass through magnet absorption on the right side board of casing 1. So, hangers 15 can freely adsorb a certain position on the right side board of casing 1, and hangers 15 are used for hanging the output line.
The touch display screen 3 realizes the setting and monitoring of treatment modes, treatment channels, treatment time, treatment positions, treatment prescriptions and air pump negative pressure parameters in a direct touch mode of human fingers; the touch display screen 3 directly controls system prompt tones, the system prompt tones comprise startup music, key tones, channel starting tones, channel ending tones and emergency stop tones, the touch display screen 3 is divided into a left area and a right area, the two areas can treat two rehabilitation patients at the same time, and each area can realize the selection of a treatment mode.
The electrode chuck is the prior art, and the structure and the working principle thereof are the same as the technical scheme in the Chinese patent publication No. CN112107308A "adsorption electrode", and are not described herein again.
During operation, pour into an amount of liquid medicine in the flourishing liquid recess, open heating switch 12, make each carbon fiber heating plate switch on electrician and heat liquid medicine, then take out some cavernosum from accomodating chamber 5, make the cavernosum dip in and place corresponding electrode sucking disc after getting liquid medicine inside, so, alright use electrode sucking disc to carry out rehabilitation to patient's health position, can attach the skin surface after the cavernosum absorbs water, increase electric conductivity, the temperature control scope of carbon fiber heating plate is 35 ~ 55 ℃.
The rectification power supply circuit has the functions of a grounding protection circuit and an overcurrent protection circuit, and can convert a 220V alternating current power supply into a 3.3V direct current power supply required by the control circuit board, a 12V direct current power supply required by the air pump and a 5V power supply required by the electromagnetic valve.
The power supply, the transformer, the air pump, the water-vapor separation tank, the control circuit board, the electrode sucker, the sponge body, the plug-in connector, the main negative pressure air pipe, the negative pressure branch air pipe and the electromagnetic valve are not shown in the figure.
A working method of an interference electric therapeutic apparatus specifically comprises the following steps:
firstly, turning on a power switch 14 to electrify the interference electric therapeutic apparatus, and initializing the modulation depth of a 1# single chip microcomputer, a 2# single chip microcomputer, a 3# single chip microcomputer, a 4# single chip microcomputer, a touch display screen 3, an electromagnetic valve, an air pump control switch, a current output emergency stop button 11, a suction force emergency stop button 13, an intensity display lamp bar 9 and a signal conditioning circuit;
secondly, checking whether each strength adjusting knob 10 is reset or not, and starting reset operation if not;
thirdly, the 2# single chip microcomputer starts to send the last treatment information (including treatment time and prescription number) stored by the 2# single chip microcomputer to the touch display screen 3;
fourthly, starting a main circulation program, calling a serial port data processing function program, inquiring whether data are sent to the touch display screen 3, the single chip microcomputer 1, the single chip microcomputer 3 and the single chip microcomputer 4 by the single chip microcomputer 2, if data are sent, receiving the data according to a serial port, realizing the acquisition of electrode channel selection, a treatment mode, a treatment prescription and intensity control data, starting an emergency state processing function inquiry, starting an electrode falling detection function inquiry, starting an air pump output control function, starting a nixie tube display inquiry, starting a channel intensity detection function inquiry and the like; if the motor potentiometer of the intensity adjusting knob 10 detects a voltage value, opening a corresponding channel as required; when the air pump control switch is detected to be pressed down, starting to detect the voltage value of the AD channel corresponding to the air pump, and if the detected voltage value is smaller than the set value of the screen, opening the electromagnetic valve, and performing air suction and pressurization on the electrode sucker through the air pump; if the current voltage value is detected to be higher than the set value, closing the electromagnetic valve and stopping air suction; when the current output emergency stop button 11 is pressed, firstly, which current output emergency stop button 11 is pressed is judged, the intensity adjusting knob 10 is correspondingly turned off, and when the motor potentiometer voltage of the intensity adjusting knob 10 returns to zero, the intensity adjusting knob 10 is stopped to reset.
The control scheme of the 1# single chip microcomputer, the control scheme of the 2# single chip microcomputer, the control scheme of the 3# single chip microcomputer and the control scheme of the 4# single chip microcomputer are the same, the 1# single chip microcomputer is taken as an example to illustrate a control circuit of the 1# single chip microcomputer, as shown in figure 3, a power supply supplies power for the 1# single chip microcomputer, the 1# single chip microcomputer is respectively in signal connection with a signal conditioning circuit, an intensity display lamp bar 9, an intensity adjusting knob 10, a power amplifying circuit, a current detection circuit, an air pump negative voltage detection circuit, an electromagnetic valve control circuit and an intensity detection circuit, and the signal conditioning circuit comprises a chopper circuit and an amplitude modulation circuit:
the function of the chopper circuit: converting the square wave emitted by the 1# single chip microcomputer into amplitude modulation wave of sine wave modulation;
firstly, STM32 outputs 1-200Hz and 100-20KHz square wave signals to an LTC1063 filter, the 1-200Hz square wave generates an envelope, the 100-20KHz square wave is used for a clock signal of the LTC1063 filter, and the 1-200Hz square wave is changed into a 1-200Hz sine wave after passing through the filter;
then, the sine wave enters a 4052 digital selector, a channel is selected at 4052, the sine wave is selected as a modulation intermediate frequency, the sine wave is grounded and is in a BURST mode, then the sine wave enters an addition circuit for modulating depth, a power amplifier feedback loop is connected with 4052, different resistors can be selected, different modulation depths are generated according to different selected resistors, and finally a voltage follower is connected for enhancing driving capability;
finally, the last 4052 digital selector is started to perform chopping, STM32 sends out two complementary 1-20KHz square waves which are respectively connected to a channel selection pin of 4052, a sine wave is converted into a sine modulated square wave signal through a switch of 4052, 4052 outputs two complementary sine modulated square wave signals only on the upper half part of the X axis, the two signals enter a subtraction circuit consisting of LM1458 to be converted into a complete sine modulated square wave signal which is filtered by a following LTC1063 filter and then converted into an amplitude modulation wave of the sine wave modulated sine wave, the carrier frequency of the amplitude modulation wave is related to the switching frequency of 4052, and the frequency of the modulation signal is related to the 1-200Hz square wave frequency sent out by STM 32;
an amplitude modulation circuit: the amplitude of amplitude modulated waves, namely amplitude modulation intensity, is adjusted through the DP7251 digital potentiometer, the amplitude modulated waves pass through the DP7251 and then enter the voltage follower to increase driving capability, then the amplitude modulated waves enter the addition circuit to raise the overall voltage of the amplitude modulated waves by 1.65V, namely the central axis is plus 3.3V on the Y axis, and the voltage of the amplitude modulated waves is pulled down by 3.3V integrally through the subtraction circuit, namely the central axis is 0V on the Y axis;
a power amplification circuit: the final signal enters a 1875 power amplifying circuit through a blocking capacitor and finally enters a transformer to be output to a human body, so that the function is completed;
the current detection circuit: the device is used for safety protection, and can monitor the states of overlarge current acting on a human body, electrode sucker falling off and the like, and once the current is overlarge, the device triggers open circuit; once the electrode sucker falls off, sound and light alarm is given within a specified time;
power supply: can simultaneously provide +3.3V, -3.3V, +15V, -15V, +5V, -5V and + 1.65V;
air pump negative pressure detection circuitry: the device is used for controlling and detecting the state of negative pressure in the electrode sucker and detecting the adsorption pressure of the current electrode sucker, wherein the pressure range is-0 to-40 Kpa;
the electromagnetic valve control circuit: when the interference electric therapeutic apparatus works, the electromagnetic valve is closed to seal the air passage; when the interference electric therapeutic apparatus stops working, the electromagnetic valve is opened, and water in the water-steam separation tank flows into the pull-type drainage box 8 through the drainage pipe;
intensity detection circuit: the device is used for detecting the position of the current intensity adjusting knob 10 when the machine operates, reading the position by the single chip microcomputer, and then controlling the DP7251 to adjust the intensity. The treatment modes are divided into A, B, C three modes:
one, A mode-one way
1. Back prescription
Modulation frequency: 1 to 120HZ random variation
Carrier frequency: 5K
Modulation degree: 50 percent of
Dynamic rhythm: is free of
Difference frequency period: is free of
Difference frequency range: is free of
2. Prescription for upper limbs
Modulation frequency: 1 to 120HZ random variation
Carrier frequency: 5K
Modulation degree: 50 percent of
Dynamic rhythm: is free of
Difference frequency period: is free of
Difference frequency range: is free of
3. Prescription for shoulder and neck
Modulation frequency: 1 to 120HZ random variation
Carrier frequency: 5K
Modulation degree: 100% +50% alternation
Dynamic rhythm: is free of
Difference frequency period: is free of
Difference frequency range: is free of
4. Elbow prescription
Modulation frequency: 1 to 120 random changes
Carrier frequency: 5K
Modulation degree: 50 percent of
Dynamic rhythm: is free of
Difference frequency period: is free of
Difference frequency range: is free of
5. Recipe for waist and abdomen
Modulation frequency: 1 to 120 random changes
Carrier frequency: 5K
Modulation degree: 50 percent of
Dynamic rhythm: is free of
Difference frequency period: is free of
Difference frequency range: is free of
6. Knee prescription
Modulation frequency: 1 to 120 random changes
Carrier frequency: 5K
Modulation degree: 50 percent of
Dynamic rhythm: is free of
Difference frequency period: is free of
Difference frequency range: is free of
7. Prescription for lower limbs
Modulation frequency: 1 to 120 random changes
Carrier frequency: 5K
Modulation degree: 50% +100%
Dynamic rhythm: is free of
Difference frequency period: is free of
Difference frequency range: is free of
Two-way and B mode-two-way interference (30S two-way parallel output for adjusting two-way balance when starting)
1. Back prescription
Modulation frequency: 1 to 120 random changes
Carrier frequency: 5K
Modulation degree: 50 percent of
Dynamic rhythm: is free of
Difference frequency period: 160-200S
Difference frequency range: 1 to 20HZ (Low)
2. Prescription for upper limbs
Modulation frequency: 1 to 120HZ random variation
Carrier frequency: 5K
Modulation degree: 50 percent of
Dynamic rhythm: 5S
Difference frequency period: 50 to 240S
Difference frequency range: 20 to 80HZ (middle)
3. Prescription for shoulder and neck
Modulation frequency: 1 to 120 random changes
Carrier frequency: 5K
Modulation degree: 50 percent of
Dynamic rhythm: 15S
Difference frequency period: 50 to 160 g/L
Difference frequency range: 80 to 120HZ (high)
Waveform characteristics (rise 5S, hold 5S, fall 5S, rest 5 seconds)
4. Elbow prescription
Modulation frequency: 1 to 120HZ random variation
Carrier frequency: 5K
Modulation degree: 50 percent of
Dynamic rhythm: 2S
Difference frequency period: 50-240S
Difference frequency range: low + medium
Prescription for 5 waist and abdomen
Modulation frequency: 1 to 120HZ random variation
Carrier frequency: 5K
Modulation degree: 100% +50% alternation
Dynamic rhythm: 3S
Difference frequency period: 50 to 240S
Difference frequency range: low + high
6. Knee prescription
Modulation frequency: 1 to 120 random changes
Carrier frequency: 5K
Modulation degree: 50 percent of
Dynamic rhythm: 4
Difference frequency period: 50 to 240
Difference frequency range: medium + high
7. Prescription for lower limbs
Modulation frequency: 1 to 120HZ random variation
Carrier frequency: 5K
Modulation degree: 50 percent of
Dynamic rhythm: 3 to 14S
Difference frequency period: 50 to 240S
Difference frequency range: low + medium + high
The waveform characteristics are as follows: (rise, hold, fall, rest with random time change.)
Three, C mode-four (30S two-way parallel output for adjusting two-way balance when starting)
1. Back prescription
Modulation frequency: 1 to 120 random changes
Carrier frequency: 5K
Modulation degree: 50 percent of
Dynamic rhythm: is free of
Difference frequency period: 160-200S
Difference frequency range: 1 to 20HZ (Low)
2. Prescription for upper limbs
Modulation frequency: 1 to 120 random changes
Carrier frequency: 5K
Modulation degree: 50 percent of
Dynamic rhythm: is free of
Difference frequency period: 50 to 240S
Difference frequency range: 20 to 80HZ (middle)
3. Prescription for shoulder and neck
Modulation frequency: 1 to 120HZ random variation
Carrier frequency: 5K
Modulation degree: 50 percent of
Dynamic rhythm: is free of
Difference frequency period: 50 to 160 g/L
Difference frequency range: 80 to 120HZ (high)
The waveform characteristics are as follows: (IFC + IFCW30S alternating.)
4. Elbow prescription
Modulation frequency: 1 to 120HZ random variation
Carrier frequency: 5K
Modulation degree: 100% +50% alternation
Dynamic rhythm: is free of
Difference frequency period: 50-240S
Difference frequency range: low + medium
5. Recipe for waist and abdomen
Modulation frequency: 1 to 120 random changes
Carrier frequency: 5K
Modulation degree: 50 percent of
Dynamic rhythm: is free of
Difference frequency period: 50 to 240S
Difference frequency range: low + high
6. Knee prescription
Modulation frequency: 1 to 120 random changes
Carrier frequency: 5K
Modulation degree: 50% +100%
Dynamic rhythm: is free of
Difference frequency period: 50 to 240S
Difference frequency range: medium + high
7. Prescription for lower limbs
Modulation frequency: 1 to 120HZ random variation
Carrier frequency: 5K
Modulation degree: 50 percent of
Dynamic rhythm: is free of
Difference frequency period: 50 to 240S
Difference frequency range: low + medium + high.
The above embodiments are merely to illustrate rather than to limit the technical solutions of the present invention, and although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that; modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.
Claims (8)
1. An interference electric therapeutic apparatus, which is characterized in that: the device comprises a machine shell, universal wheels with locking mechanisms are arranged around the bottom of the machine shell, a touch display screen, a plurality of groups of current intensity adjusting components and a gas pump control switch are arranged on the upper side part of a front side panel of the machine shell, each group of current intensity adjusting components are arranged at intervals left and right and are positioned below the touch display screen, a power supply, a transformer, a gas pump, a water-vapor separation tank and a control circuit board are arranged inside the machine shell, a heat preservation heating layer is arranged in the middle part of the front side of the machine shell, a plurality of electrode output ports are arranged on the lower side of the middle part of the front side panel of the machine shell, a containing cavity which is positioned below the electrode output ports and is open at the front side is arranged on the lower side part of the front side panel of the machine shell, a plurality of electrode suckers and sponge bodies are arranged in the containing cavity, and the electrode suckers are respectively connected with the electrode output ports in a plugging and pulling mode through gas-electricity integrated pipelines, a drawing type drainage box which is positioned below the containing cavity and has an open top is embedded at the lower part of the front side of the casing, a power supply is respectively and electrically connected with the touch display screen, each group of current intensity adjusting components, a transformer, an air pump, a control circuit board, a heat preservation heating layer and an electrode output port through a plug-in connector, an air suction port of the air pump is connected with a side air outlet of the water-vapor separation tank, a main negative pressure air pipe is connected with an air inlet at the top of the water-vapor separation tank, a plurality of negative pressure branch air pipes are arranged on the main negative pressure air pipe, each negative pressure branch air pipe is respectively connected with each electrode output port, a water outlet of the water-vapor separation tank is connected with a drain pipe, a lower port of the drain pipe is positioned right above the drawing type drainage box, an electromagnetic valve is arranged on the drain pipe, the power supply is electrically connected with the electromagnetic valve, each electrode output port is correspondingly and is electrically connected with each electrode sucker through a gas-electricity integrated pipeline and is connected with a gas circuit, the control circuit board is respectively in signal connection with the touch display screen, the current intensity adjusting assemblies, the transformer, the air pump control switch, the heat preservation heating layer and the electromagnetic valve, and the air pump control switch is electrically connected with the air pump.
2. The interferential electric therapy apparatus according to claim 1, wherein: the current intensity adjusting component comprises an intensity display lamp strip, an intensity adjusting knob and a current output emergency stop button, the intensity display lamp strip, the intensity adjusting knob and the current output emergency stop button are arranged on the upper side portion of the front side panel of the shell at intervals from top to bottom and located below the touch display screen, the intensity display lamp strip is composed of a plurality of flat LED lamps which are vertically stacked, the intensity adjusting knob adopts a motor potentiometer with ten gears, the intensity display lamp strip, the intensity adjusting knob, the current output emergency stop button and one corresponding electrode sucker therein are connected in series, and the control circuit board is respectively connected with the intensity display lamp strip, the intensity adjusting knob and the current output emergency stop button are in signal connection.
3. The interferential electric therapy apparatus according to claim 2, wherein: the gas-electricity integrated pipeline comprises a conduit, the conduit is a hollow pipe with a two-layer structure, a surface insulating layer copper conductor is arranged in an inner layer pipe of the conduit, and a ventilation annular cavity is formed between an outer layer pipe and the inner layer pipe of the conduit.
4. The interferential electric therapy apparatus according to claim 3, wherein: the control circuit board comprises a rectification power circuit, a controller, a signal conditioning circuit, a temperature control circuit, a current detection circuit, a key circuit, a power amplification circuit, an air pump negative pressure detection circuit, an electromagnetic valve control circuit, an acousto-optic alarm circuit and an intensity detection circuit, wherein the power supply is electrically connected with the rectification power circuit, the rectification power circuit is respectively and electrically connected with the controller, the air pump and the touch display screen, the controller consists of a 1# single chip microcomputer, a 2# single chip microcomputer, a 3# single chip microcomputer and a 4# single chip microcomputer, the 1# single chip microcomputer, the 2# single chip microcomputer, the 3# single chip microcomputer and the 4# single chip microcomputer are STM32F (scanning tunneling microscope) single chip microcomputers, the 2# single chip microcomputer is used as a host, the 1# single chip microcomputer, the 3# single chip microcomputer and the 4# single chip microcomputer are used as slaves, the 2# single chip microcomputer is respectively in signal connection with the 1# single-serial communication circuit, the 3# single chip microcomputer and the 4# single chip microcomputer, and the 2# single-serial communication circuit is in signal connection with the touch display screen, 1# singlechip, 2# singlechip, 3# singlechip and 4# singlechip are independent respectively with signal conditioning circuit, temperature control circuit, current detection circuit, keying circuit, power amplification circuit, air pump negative pressure detection circuit, solenoid valve control circuit, audible and visual alarm circuit and intensity detection circuit signal connection, temperature control circuit and heat preservation zone of heating signal connection, current detection circuit respectively with intensity display lamp strip and intensity adjust knob signal connection, keying circuit respectively with current output emergency stop button and air pump control switch signal connection, solenoid valve control circuit and solenoid valve signal connection.
5. The interferential electric therapy apparatus according to claim 4, wherein: the heat preservation zone of heating includes the hot plate, hot plate horizontal fixed mounting is in the front side panel middle part of casing, the hot plate upper surface is provided with flourishing liquid recess, the tank bottom fixed surface of flourishing liquid recess installs a plurality of carbon fiber heating plates, be provided with the heating switch of each carbon fiber heating plate work of control on the front side panel of casing, the power is connected with heating switch and each carbon fiber heating plate electricity respectively, temperature control circuit respectively with each carbon fiber heating plate signal connection, key circuit and heating switch signal connection.
6. The interferential electric therapy apparatus according to claim 5, wherein: the suction emergency stop button of control air pump work is installed to the front side board of casing lateral part, and the right side board middle part of casing is provided with the switch of control power work, and keying circuit is connected with suction emergency stop button and switch signal respectively, and the right side board of casing lateral part is provided with the hangers, is provided with magnet on the hangers, and the hangers passes through magnet and adsorbs on the right side board of casing.
7. The interferential electric therapy apparatus according to claim 6, wherein: the touch display screen realizes the setting and monitoring of treatment modes, treatment channels, treatment time, treatment positions, treatment prescriptions and air pump negative pressure parameters in a direct touch mode of human fingers; the touch display screen directly controls system prompt tones, the system prompt tones comprise starting music, key tones, channel starting tones, channel ending tones and emergency stop tones, the touch display screen is divided into a left area and a right area, the two areas can treat two rehabilitation patients at the same time, and each area can realize the selection of a treatment mode.
8. The method of claim 7, wherein the step of operating the interferential electrical therapy apparatus comprises the steps of: the method specifically comprises the following steps:
the method comprises the following steps that firstly, a power switch is turned on to electrify the interference electric therapeutic apparatus, and the modulation depths of a 1# single chip microcomputer, a 2# single chip microcomputer, a 3# single chip microcomputer, a 4# single chip microcomputer, a touch display screen, an electromagnetic valve, an air pump control switch, a current output emergency stop button, a suction force emergency stop button, an intensity display light bar and a signal conditioning circuit are initialized;
secondly, checking whether each strength adjusting knob is reset or not, and starting reset operation if not;
thirdly, the 2# single chip microcomputer starts to send the last treatment information (including treatment time and prescription number) stored by the 2# single chip microcomputer to the touch display screen;
fourthly, starting a main circulation program, calling a serial port data processing function program, inquiring whether the touch display screen, the 1# single chip microcomputer, the 3# single chip microcomputer and the 4# single chip microcomputer have data to send by the 2# single chip microcomputer, if the touch display screen, the 1# single chip microcomputer, the 3# single chip microcomputer and the 4# single chip microcomputer have data to send, receiving the data according to a serial port, realizing the acquisition of electrode channel selection, treatment modes, treatment prescriptions and intensity control data, starting an emergency state processing function inquiry, starting an electrode falling detection function inquiry, starting an air pump output control function, starting a nixie tube display inquiry, starting a channel intensity detection function inquiry and the like; if the motor potentiometer of the intensity adjusting knob detects a voltage value, opening a corresponding channel as required; when the air pump control switch is detected to be pressed down, starting to detect the voltage value of the AD channel corresponding to the air pump, and if the detected voltage value is smaller than the set value of the screen, opening the electromagnetic valve, and performing air suction and pressurization on the electrode sucker through the air pump; if the current voltage value is detected to be higher than the set value, closing the electromagnetic valve and stopping air suction; when the current output emergency stop button is pressed, judging which current output emergency stop button is pressed, correspondingly closing the intensity adjusting knob, and stopping resetting the intensity adjusting knob after the motor potentiometer voltage of the intensity adjusting knob returns to zero.
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| CN116549852A (en) * | 2023-06-26 | 2023-08-08 | 江苏智慧工场技术研究院有限公司 | Nerve therapeutic instrument convenient to carry |
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