CN108578892A - Electrical stimulation circuit and portable stimulator for curing hemiparalysis - Google Patents
Electrical stimulation circuit and portable stimulator for curing hemiparalysis Download PDFInfo
- Publication number
- CN108578892A CN108578892A CN201810578668.2A CN201810578668A CN108578892A CN 108578892 A CN108578892 A CN 108578892A CN 201810578668 A CN201810578668 A CN 201810578668A CN 108578892 A CN108578892 A CN 108578892A
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- China
- Prior art keywords
- circuit
- electrical stimulation
- supply voltage
- control chip
- power
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
-
- 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
- A61N1/36003—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation of motor muscles, e.g. for walking assistance
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
Abstract
A kind of portable stimulator the invention discloses electrical stimulation circuit and for curing hemiparalysis, belong to technical field of electronic equipment, the present invention is arranged instruction according to the signal by main control chip and determines waveform and/or parameter, and corresponding two-way analog signal is generated according to the waveform and/or parameter, prime amplification is carried out to analog signal described in two-way by preamplifying circuit again, then power amplification is carried out by the power amplification circuit analog signal amplified to prime, obtain stimulus signal corresponding with signal setting instruction, a variety of stimulus waveforms can be generated, and realize diversified stimulation mode, it disclosure satisfy that all kinds of stimulation requirements, to meet the personalized rehabilitation demands of hemiplegic patient.
Description
Technical field
The present invention relates to technical field of electronic equipment, more particularly to a kind of electrical stimulation circuit and for the portable of curing hemiparalysis
Formula stimulator.
Background technology
It is counted and is shown according to national disabled person's survey report：China is the most country of disabled person's quantity.China is walking
Enter aging society, older population is the group of people at high risk of cranial vascular disease or the nervous system disease, and this kind of most patients are with inclined
Paralysed symptom.For these paraplegia and hemiplegic patient, loses normal mobility and bring inconvenience to life, institute
Rehabilitation with paralytic is always the hot spot of medical institutions and rehabilitation institution's research.
In recent years, functional electrostimulation (Functional Electrical Stimulation, FES) is used as a kind of heat
The rehabilitation therapy of door is of interest by people.FES utilizes one or more groups of muscle of the low-frequency electric pulse signal to stimulation patient,
Since the motor neuron in paralysed patient muscle is complete, muscle still has the ability that movement is shunk, therefore passes through thorn
Swashing can be so that contraction of muscle or simulation normal muscle autokinetic movement so that loses or impaired motor function is restored.
But the waveform and parameter of stimulator in the prior art are fixed, it is difficult to meet the rehabilitation demands of different hemiplegic patients.
Invention content
For all or part of technical problem for solving above-mentioned, the present invention provides a kind of electrical stimulation circuit and it to be used for hemiplegia
The portable stimulator for the treatment of.
A kind of electrical stimulation circuit provided by the invention, the electrical stimulation circuit include：Sequentially connected interactive device, master control
Chip, preamplifying circuit and power amplification circuit；
Signal setting instruction is sent to the master control core by the interactive device for receiving signal setting instruction
Piece；
The main control chip determines waveform and/or parameter for instruction to be arranged according to the signal, and according to the waveform
And/or parameter generates corresponding two-way analog signal；
The preamplifying circuit, for carrying out prime amplification to analog signal described in two-way；
The power amplification circuit carries out power amplification, acquisition and institute for the analog signal amplified to prime
It states signal setting and instructs corresponding stimulus signal.
Preferably, the interactive device includes the display screen and matrix keyboard being connected with the main control chip；
The matrix keyboard, for receiving signal setting instruction input by user；
The display screen, for instructing corresponding waveform and/or parameter to show signal setting.
Preferably, the interactive device further includes the serial port module being connected with the main control chip；
The serial port module receives the signal setting instruction that the host computer is sent for being attached with host computer.
Preferably, the electrical stimulation circuit further includes：Power circuit block；
The power circuit block is additionally operable to be powered other component.
Preferably, the power circuit block includes：Three terminal regulator LM7809, three terminal regulator LM7805, three ends are steady
Depressor LM1117-3.3, power supply control chip ICL7660, power supply control chip MCP1651 and power supply control chip MAX749.
Preferably, the three terminal regulator LM7809, the supply voltage for the input voltage of+12V to be depressurized to+9V；
The three terminal regulator LM7805, the supply voltage for the supply voltage of+9V to be depressurized to+5V；
The three terminal regulator LM1117-3.3, the supply voltage for the supply voltage of+5V to be depressurized to+3.3V；
The power supply control chip ICL7660, the supply voltage for the supply voltage of+5V to be converted into -5V；
The power supply control chip MCP1651, the supply voltage for the supply voltage of+5V to be boosted to+35V；
The power supply control chip MAX749, the supply voltage for the supply voltage of -5V to be boosted to -35V；
Wherein, it is that the preamplifying circuit is powered by the supply voltage of the supply voltage of+5V and -5V, by+
The supply voltage of 3.3V is that the main control chip, display screen, serial port module and matrix keyboard are powered respectively, passes through+35V's
The supply voltage of supply voltage and -35V are that the power amplification circuit is powered.
Preferably, the preamplifying circuit includes operational amplifier NE5532 and resistance.
Preferably, the power amplification circuit includes power operational amplifier OPA544 and resistance.
It is described for the portable of curing hemiparalysis the present invention also provides a kind of portable stimulator for curing hemiparalysis
Stimulator includes electrical stimulation circuit as described above.
Preferably, the portable stimulator for curing hemiparalysis further includes：Shell and electrode；
The electrical stimulation circuit is set in the shell, and the electrode is set in the electrode interface of the shell, the electricity
Pole is connected by the electrode interface with the output end of power amplification circuit in the electrical stimulation circuit.
The present invention is arranged instruction according to the signal by main control chip and determines waveform and/or parameter, and according to the waveform
And/or parameter generates corresponding two-way analog signal, then prime is carried out to analog signal described in two-way by preamplifying circuit
Amplification then carries out power amplification by the power amplification circuit analog signal amplified to prime, obtains and the signal
Setting instructs corresponding stimulus signal, can generate a variety of stimulus waveforms, and realize diversified stimulation mode, disclosure satisfy that
All kinds of stimulation requirements, to meet the personalized rehabilitation demands of hemiplegic patient.
Description of the drawings
Fig. 1 is the structure diagram of the electrical stimulation circuit of one embodiment of the present invention；
Fig. 2 is the circuit diagram of display screen in electrical stimulation circuit shown in FIG. 1；
Fig. 3 is the circuit diagram of matrix keyboard in electrical stimulation circuit shown in FIG. 1；
Fig. 4 is the circuit diagram of serial port module in electrical stimulation circuit shown in FIG. 1；
Fig. 5 is the circuit diagram of the STM32F103RCT6 chips of main control chip in electrical stimulation circuit shown in FIG. 1；
Fig. 6 is the circuit diagram of the crystal oscillator of main control chip in electrical stimulation circuit shown in FIG. 1；
Fig. 7 is the circuit diagram of the reset key of main control chip in electrical stimulation circuit shown in FIG. 1；
Fig. 8 is the circuit diagram of the first part of preamplifying circuit in electrical stimulation circuit shown in FIG. 1；
Fig. 9 is the circuit diagram of the second part of preamplifying circuit in electrical stimulation circuit shown in FIG. 1；
Figure 10 is the circuit diagram of power amplification circuit in electrical stimulation circuit shown in FIG. 1；
Figure 11 is the circuit diagram of three terminal regulator LM7809 in electrical stimulation circuit shown in FIG. 1
Figure 12 is the circuit diagram of three terminal regulator LM7805 in electrical stimulation circuit shown in FIG. 1；
Figure 13 is the circuit diagram of three terminal regulator LM1117-3.3 in electrical stimulation circuit shown in FIG. 1；
Figure 14 is the circuit diagram of power supply control chip ICL7660 in electrical stimulation circuit shown in FIG. 1；
Figure 15 is the circuit diagram of power supply control chip MCP1651 in electrical stimulation circuit shown in FIG. 1；
Figure 16 is the circuit diagram of power supply control chip MAX749 in electrical stimulation circuit shown in FIG. 1；
Figure 17 is the structural schematic diagram of the portable stimulator for curing hemiparalysis of one embodiment of the present invention.
Specific implementation mode
With reference to the accompanying drawings and examples, the specific implementation mode of the present invention is described in further detail.Implement below
Example is not limited to the scope of the present invention for illustrating the present invention.
Fig. 1 is the structure diagram of the electrical stimulation circuit of one embodiment of the present invention；Referring to Fig.1, the electrical stimulation circuit
Including：Sequentially connected interactive device 1, main control chip 2, preamplifying circuit 3 and power amplification circuit 4；
Signal setting instruction is sent to the master control core by the interactive device 1 for receiving signal setting instruction
Piece 2；
It is arranged for ease of user input signal and instructs, in the present embodiment, the interactive device 1 may include and the master control core
The connected display screen 11 of piece 2 and matrix keyboard 12 convenient and efficient can be realized thereby using family and be set to waveform and/or parameter
It is fixed.
The display screen 11, for instructing corresponding waveform and/or parameter to show signal setting；
In the concrete realization, the display screen 11 can be TFT-LCD the display screens (" LCD- i.e. in figure with reference to Fig. 2
TFT "), can by Serial Peripheral Interface (SPI) (Serial Peripheral Interface, SPI) communicate with main control chip 2 into
Operation of the main control chip 2 to display screen is realized in row communication, such as：2.4 inch TFT-LCD color screens can be used to show, beautiful interface friend
It is good, it is easily operated.
The matrix keyboard 12, for receiving signal setting instruction input by user；
In the concrete realization, with reference to Fig. 3, the matrix keyboard 12 (" KEYS " i.e. in figure) is mainly made of button, presses
Matrix-style is arranged, the scanning by main control chip 2 to matrix keyboard, realizes that the detection to button, the present embodiment use
Matrix keyboard 12 operates, and enriches the mode of human-computer interaction, and electro photoluminescence is realized with more convenient.
It is instructed for ease of being arranged by host computer signal, in the present embodiment, the interactive device 1 may also include and the master
Control the connected serial port module 13 of chip 2；
The serial port module 13, for being attached with host computer, the signal setting for receiving the host computer transmission instructs,
In the concrete realization, the serial port module 13 is the circuit for serial ports to be turned to USB, with reference to Fig. 4, it may include serial ports turns USB cores
Piece CH340G, crystal oscillator (" XTAL " i.e. in figure), capacitance C (" C17 ", " C18 " i.e. in figure and " C19 ") and USB micro are (i.e.
" USB_M " in figure), the present embodiment possesses serial communication mode, can be by serial ports and compunlcation, to realize host computer
Allomeric function is realized in control to electrical stimulation circuit.
The main control chip 2 determines waveform and/or parameter for instruction to be arranged according to the signal, and according to the wave
Shape and/or parameter generate corresponding two-way analog signal；
It should be noted that the parameter includes：The parameters such as voltage strength and/or output time, the present embodiment to this not
It limits.
In the concrete realization, the main control chip 2 is STM32F103 minimum systems, with reference to Fig. 5~7, including
STM32F103RCT6 chips, crystal oscillator (" Y1 " i.e. in figure), reset key (" RST " i.e. in figure), resistance R are (i.e. in figure
" R1 ") and capacitance C (" C1 ", " C2 " i.e. in figure and " C3 ").
The preamplifying circuit 3, for carrying out prime amplification to analog signal described in two-way；
For ease of realizing prime amplification, in the concrete realization, the preamplifying circuit 3 may include operational amplifier
NE5532P and resistance.
With reference to Fig. 8~9, the preamplifying circuit 3 may include two parts, and power amplification is being carried out to two-way analog signal
When, analog signal all the way (" DA2 " i.e. in figure) can in the same direction be amplified by first part's (i.e. corresponding diagram 8), passes through
Two parts (i.e. corresponding diagram 9) are reversely amplified by another way analog signal (" DA1 " i.e. in figure).
The power amplification circuit 4 carries out power amplification, acquisition and institute for the analog signal amplified to prime
It states signal setting and instructs corresponding stimulus signal.
For ease of realizing power amplification, in the concrete realization, referring to Fig.1 0, the power amplification circuit 4 includes power fortune
Calculate amplifier OPA544T and resistance.
It will be appreciated that the amplified two-way analog signal ingoing power amplifying circuit 4 of prime, by power amplification circuit 4
Adder is formed, add operation is carried out to the analog signal of two-way opposed polarity and carries out power amplification, obtains higher-wattage
Stimulus signal.
At this point, the stimulus signal that the power amplification circuit 4 obtains may be output to electrode 6 (" TROD " i.e. in figure).
For ease of being powered for each component, in the present embodiment, the electrical stimulation circuit further includes：Power circuit block 5；
The power circuit block 5 is additionally operable to be powered other component.
Since different components may have different voltages demand, and the power supply of electrical stimulation circuit is usually one fixed
Supply voltage (such as：+ 12V), to meet the voltage requirements of each component, in the present embodiment, the power circuit block includes：Three
Hold voltage-stablizer LM7809, three terminal regulator LM7805, three terminal regulator LM1117-3.3, power supply control chip ICL7660, power supply
Control chip MCP1651 and power supply control chip MAX749.
In the concrete realization, referring to Fig.1 1, the three terminal regulator LM7809 (" L7809ABV " i.e. in figure), for will
The input voltage of+12V is depressurized to the supply voltage of+9V；
Referring to Fig.1 2, the three terminal regulator LM7805 (" L7805ABV " i.e. in figure), for by the supply voltage of+9V
It is depressurized to the supply voltage of+5V；
Referring to Fig.1 3, the three terminal regulator LM1117-3.3 (" LM1117DT-3.3 " i.e. in figure), for by+5V's
Supply voltage is depressurized to the supply voltage of+3.3V；
4, the power supply control chip ICL7660 referring to Fig.1, the power supply electricity for the supply voltage of+5V to be converted into -5V
Pressure；
Referring to Fig.1 5, the power supply control chip MCP1651 (" MCP1651R-E/MS " i.e. in figure), for by+5V's
Supply voltage boosts to the supply voltage of+35V；
6, the power supply control chip MAX749 referring to Fig.1, the power supply electricity for the supply voltage of -5V to be boosted to -35V
Pressure；
Wherein, it is that the preamplifying circuit is powered by the supply voltage of the supply voltage of+5V and -5V, by+
The supply voltage of 3.3V is that the main control chip, display screen, serial port module and matrix keyboard are powered respectively, passes through+35V's
The supply voltage of supply voltage and -35V are that the power amplification circuit is powered.
The present embodiment is arranged instruction according to the signal by main control chip and determines waveform and/or parameter, and according to the wave
Shape and/or parameter generate corresponding two-way analog signal, then before being carried out to analog signal described in two-way by preamplifying circuit
Grade amplification then carries out power amplification by the power amplification circuit analog signal amplified to prime, obtains and the letter
Number setting instructs corresponding stimulus signal, can generate a variety of stimulus waveforms, and realize diversified stimulation mode, Neng Gouman
All kinds of stimulation requirements of foot, to meet the personalized rehabilitation demands of hemiplegic patient.
It is described for the portable of curing hemiparalysis the invention also discloses a kind of portable stimulator for curing hemiparalysis
Stimulator includes electrical stimulation circuit as described above.
For ease of carrying and using, referring to Fig.1 and Figure 17, in the present embodiment, the portable thorn for curing hemiparalysis
Sharp device further includes：Shell 7 and electrode 6；
The electrical stimulation circuit is set in the shell 7, and the electrode 6 is set in the electrode interface 8 of the shell 7, institute
Electrode 6 is stated by the electrode interface 8 to be connected with the output end of power amplification circuit in the electrical stimulation circuit.
In the concrete realization, the electrode 6 is used to receive the stimulus signal of the power amplification circuit output, to realize thorn
Stimulation of the energizing signal to muscle.
Certainly, for ease of carrying, in the present embodiment, the power supply of the portable stimulator for curing hemiparalysis can be used
Lithium battery group is powered, to increase portability.
Embodiment of above is merely to illustrate the present invention, and not limitation of the present invention, in relation to the common of technical field
Technical staff can also make a variety of changes and modification without departing from the spirit and scope of the present invention, therefore all
Equivalent technical solution also belongs to scope of the invention, and scope of patent protection of the invention should be defined by the claims.
Claims (10)
1. a kind of electrical stimulation circuit, which is characterized in that the electrical stimulation circuit includes：Sequentially connected interactive device, master control core
Piece, preamplifying circuit and power amplification circuit；
Signal setting instruction is sent to the main control chip by the interactive device for receiving signal setting instruction；
The main control chip determines waveform and/or parameter for instruction to be arranged according to the signal, and according to the waveform and/
Or parameter generates corresponding two-way analog signal；
The preamplifying circuit, for carrying out prime amplification to analog signal described in two-way；
The power amplification circuit carries out power amplification for the analog signal amplified to prime, obtains and the letter
Number setting instructs corresponding stimulus signal.
2. electrical stimulation circuit as described in claim 1, which is characterized in that the interactive device includes and the main control chip phase
Display screen and matrix keyboard even；
The matrix keyboard, for receiving signal setting instruction input by user；
The display screen, for instructing corresponding waveform and/or parameter to show signal setting.
3. electrical stimulation circuit as claimed in claim 2, which is characterized in that the interactive device further includes and the main control chip
Connected serial port module；
The serial port module receives the signal setting instruction that the host computer is sent for being attached with host computer.
4. electrical stimulation circuit as claimed in claim 3, which is characterized in that the electrical stimulation circuit further includes：Power circuit mould
Block；
The power circuit block is additionally operable to be powered other component.
5. electrical stimulation circuit as claimed in claim 4, which is characterized in that the power circuit block includes：Three terminal regulator
LM7809, three terminal regulator LM7805, three terminal regulator LM1117-3.3, power supply control chip ICL7660, power supply control chip
MCP1651 and power supply control chip MAX749.
6. electrical stimulation circuit as claimed in claim 5, which is characterized in that the three terminal regulator LM7809 is used for+12V
Input voltage be depressurized to the supply voltage of+9V；
The three terminal regulator LM7805, the supply voltage for the supply voltage of+9V to be depressurized to+5V；
The three terminal regulator LM1117-3.3, the supply voltage for the supply voltage of+5V to be depressurized to+3.3V；
The power supply control chip ICL7660, the supply voltage for the supply voltage of+5V to be converted into -5V；
The power supply control chip MCP1651, the supply voltage for the supply voltage of+5V to be boosted to+35V；
The power supply control chip MAX749, the supply voltage for the supply voltage of -5V to be boosted to -35V；
Wherein, it is that the preamplifying circuit is powered by the supply voltage of the supply voltage of+5V and -5V, by+3.3V
Supply voltage be the main control chip, display screen, serial port module and matrix keyboard be powered respectively, pass through the power supply of+35V
The supply voltage of voltage and -35V are that the power amplification circuit is powered.
7. such as electrical stimulation circuit according to any one of claims 1 to 6, which is characterized in that the preamplifying circuit includes
Operational amplifier NE5532 and resistance.
8. such as electrical stimulation circuit according to any one of claims 1 to 6, which is characterized in that the power amplification circuit includes
Power operational amplifier OPA544 and resistance.
9. a kind of portable stimulator for curing hemiparalysis, which is characterized in that the portable stimulation for curing hemiparalysis
Device includes electrical stimulation circuit according to any one of claims 1 to 8.
10. being used for the portable stimulator of curing hemiparalysis as claimed in claim 9, which is characterized in that described to be controlled for hemiplegia
Treat portable stimulator further include：Shell and electrode；
The electrical stimulation circuit is set in the shell, and the electrode is set in the electrode interface of the shell, and the electrode is logical
The electrode interface is crossed with the output end of power amplification circuit in the electrical stimulation circuit to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810578668.2A CN108578892A (en) | 2018-06-07 | 2018-06-07 | Electrical stimulation circuit and portable stimulator for curing hemiparalysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810578668.2A CN108578892A (en) | 2018-06-07 | 2018-06-07 | Electrical stimulation circuit and portable stimulator for curing hemiparalysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108578892A true CN108578892A (en) | 2018-09-28 |
Family
ID=63627631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810578668.2A Withdrawn CN108578892A (en) | 2018-06-07 | 2018-06-07 | Electrical stimulation circuit and portable stimulator for curing hemiparalysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108578892A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109954209A (en) * | 2019-03-14 | 2019-07-02 | 北京京一合符医药科技发展有限公司 | A kind of high-voltage driving circuit system for functional electrostimulation |
| CN110174943A (en) * | 2019-05-14 | 2019-08-27 | 上海交通大学 | A kind of low pass road lightweight domestic type waveform modulated transcutaneous electrostimulation instrument |
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| CA2953847A1 (en) * | 2005-04-07 | 2006-11-02 | Proteus Digital Health, Inc. | Pharma-informatics system |
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2018
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| CA2953847A1 (en) * | 2005-04-07 | 2006-11-02 | Proteus Digital Health, Inc. | Pharma-informatics system |
| CN101569777A (en) * | 2009-06-09 | 2009-11-04 | 钱本文 | Electrostimulation system |
| CN102049095A (en) * | 2009-11-10 | 2011-05-11 | 上海理工大学 | Electromyographic feedback electrical stimulator |
| CN104436431A (en) * | 2014-12-16 | 2015-03-25 | 福州大学 | Multi-node electrical stimulation system and method |
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| CN109954209A (en) * | 2019-03-14 | 2019-07-02 | 北京京一合符医药科技发展有限公司 | A kind of high-voltage driving circuit system for functional electrostimulation |
| CN110174943A (en) * | 2019-05-14 | 2019-08-27 | 上海交通大学 | A kind of low pass road lightweight domestic type waveform modulated transcutaneous electrostimulation instrument |
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Application publication date: 20180928 |