CN87203225U - Electrotherapeutic machine for modulating square wave into trapezoidal - Google Patents
Electrotherapeutic machine for modulating square wave into trapezoidal Download PDFInfo
- Publication number
- CN87203225U CN87203225U CN 87203225 CN87203225U CN87203225U CN 87203225 U CN87203225 U CN 87203225U CN 87203225 CN87203225 CN 87203225 CN 87203225 U CN87203225 U CN 87203225U CN 87203225 U CN87203225 U CN 87203225U
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- CN
- China
- Prior art keywords
- electrizer
- wave
- modulation
- trapezoidal
- potentiometer
- Prior art date
- 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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Abstract
The utility model discloses an electrotherapeutic machine for modulating square waves into trapezoidal waves, being capable of treating active and chronic inflammation, pain, functional disorders, etc. caused by traumas, operations or other diseases. The electrotherapeutic machine can generate electric current for modulating square waves into trapezoidal waves. The carrier waves of modulated current are trapezoidal waves of 2, 4, 6, 8KHz, and modulated waves are square waves of 1-200Hz. The electrotherapeutic machine has two systems for modulations, one is amplitude connecting modulation, and the other is discontinuous modulation; the discontinuous cycle is 2-3 seconds. The output voltage of the electrotherapeutic machine is (peak-peak value) is 0-90V and capable of being adjusted continuously, and the output current is 0-80mA and capable of being adjusted continuously. The electrotherapeutic machine which is provided with a time circuit can realize the automatic control of the time for continuous treatments, the time for discontinuous treatment, and treatment stop.
Description
This utility model belongs to medical electric therapy unit.
Medical electric therapy unit is extensive use already at home and abroad, and by the electrizer of electrode importing alternating current, different waveforms, frequency and current intensity will produce different influences to some organ of human body.In the retrieval of patent document, look into 286 kinds of dissimilar electrizers altogether, the patent document (SU1028340) close with this machine is disclosed to be the sinusoidal alternating current therapy apparatus.Its modulating frequency is 80～100 hertz, and carrier frequency is 2000～8000 hertz, and output current intensity is 2～7 milliamperes, and this electrizer is used for the treatment of hypertension; Patent document (SU957919) is disclosed also to be the sinusoidal alternating current therapy apparatus, and its modulating frequency is 100～150 hertz, 10～80 milliamperes of output current intensities.This electrizer mainly is to be used for the treatment of the recovery of athlete's muscle fatigue or some organ dysfunction that some disease causes.
The disclosed sinusoidal wave electrizer of above-mentioned patent document, the current intensity that has is less, and the frequency range that has is narrower, and its disease curing range also is subjected to certain restriction.
The purpose of this utility model provides a kind of square-wave frequency modulation trapezoidal wave electrizer, its current intensity is bigger, the frequency range broad, the sick kind of treatment is more, because carrier wave and modulating wave all are flat-topped waves, sensation of pricking to human body during treatment is little, patient is easy to accept, can be for treatment because the antiinflammatory of diseases such as the active chronic inflammation that wound, operation or other diseases cause, pain, dysfunction, detumescence, pain relieving, handicapped recovery and the absorption that promotes the inflammation exudate, the callus formation after the short fracture all has effect preferably.
The technical characterictic that this utility model provides is:
1, can export the electric current of square-wave frequency modulation trapezoidal wave.Its modulation system is amplitude modulation and interrupted modulation continuously, and modulation waveform is a square wave, and frequency range is 1～200 hertz, and this frequency range can realize even regulation by regulating a logarithm resistance potentiometer.
The carrier frequency of modulated current be 2,4,6 kilo hertzs of third gear or 2 ', 4 ', 6 ', the trapezoidal wave of 8 kilo hertzs of fourth gear.
Tissue is very little to the current impedance of said frequencies and waveform, but during treatment electric current intelligent soma than the position, deep.Painful little, be easy to accept, thereby therapeutical effect is obvious.
2, realized the Highgrade integration of circuit elements device, modulation wave generator, carrier generator, interruption period agitator, and the one-level voltage amplifier circuit after the modulation are except that the external resistance of part, electric capacity, potentiometer.All be integrated in a slice four high guaily unit device chip.In the circuit ± 12 volts of regulated power supplys are to adopt 7812 and 7,912 two three-terminal regulator blocks to add the open-and-shut mu balanced circuit that a small amount of filter capacitor is formed.Owing to circuit integrated level height, both guaranteed the reliability of complete machine performance, reduced cost again.
3, time circuit is housed, can realizes continuous treatment time, the automatic control when interrupted treatment time and treatment amount to.
Embodiment of the present utility model now describes by electrical schematic diagram.
YF-1 is the chip of a four high guaily unit device, for example LM324 in the schematic diagram.
Wherein 4 feet and 11 feet are respectively this sheet+12 volts and-12 volts of supply terminals.
1,2,3 feet are the leading foot of an independent discharge circuit, and wherein 2,3 feet are input, and 1 foot is an outfan, this discharge circuit and outer meeting resistance R
1, R
2, R
3And capacitor C
1, C
2Formed an interruption period agitator, the continuous or interrupted output of its output voltage control square-wave frequency modulation trapezoidal wave.By adjusting capacitor C
1, C
2And resistance R
3, can change cycle of interrupter duty.
5,6,7 feet are the leading foot of second independent discharge circuit, and wherein 5,6 feet are input, and 7 feet are outfan, this discharge circuit and resistance R
6, R
7, R
8, capacitor C
3, potentiometer W
1Form the modulation wave generator oscillating circuit, the modulation wave frequency is 1～200 hertz, and frequency can be passed through regulator potentiometer W
1Regulate continuously.But frequency is that the change along with potentiometer resistance is logarithmic relationship and changes.If W
1Adopt linear resistance potentiometer, though half section anglec of rotation is very big before potentiometer, frequency has only several hertz to tens hertz very little variation.Though and second half section anglec of rotation variation is very little, great changes have taken place for frequency (from tens hertz to 200 hertz).Like this, modulating frequency just can't even regulation.Also can't accurate calibration in the machinery panel upper frequency.Potentiometer W
1Select logarithm resistance potentiometer for use, just solved the problems referred to above.
8,9,10 feet are the leading foot of the 3rd independent discharge circuit, and wherein 9,10 feet are input, and 8 feet are outfan, this discharge circuit and resistance R
15, R
16, R
17And capacitor C
4-1～C
4-4Form the carrier generator oscillating circuit, by band switch BK switch-capacitor C
4-1～C
4-3Or C
4-1～C
4-4, can obtain the trapezoidal carrier pulse output of 2,4,6 kilo hertzs or 2,4,6,8 kilo hertzs at 8 feet.
12,13,14 feet are the leading foot of the 4th independent discharge circuit, and wherein 12,13 feet are input, and 14 feet are outfan, this discharge circuit and resistance R
25～R29, capacitor C
7And transistor T
4, T
5Form first order voltage amplifier, its input receives square-wave frequency modulation trapezoidal wave voltage signal, after this signal is exaggerated, exports from 14 feet.
Transistor T
2, T
3And resistance R
10～R
14Form the first differential discharge road, transistor T
4, T
5With resistance R 19～R
24, capacitor C
6, diode D
5, D
6Form the second differential discharge road.What the first differential discharge road was imported is modulated square wave.What the second differential discharge road was imported is trapezoidal carrier wave.T is passed through on the first differential discharge road
2The work on the second differential discharge road is controlled in colelctor electrode output, realizes the modulation of square wave to trapezoidal wave, makes second differentially to put middle T
4Colelctor electrode output be trapezoidal wave after the square-wave frequency modulation.
YF-2 is the single operational amplifier chip of a slice in the schematic diagram, μ A741 for example, this transport and placing device and resistance R
30～R
36, capacitor C
8～C
12Form the one-level voltage amplifier, the square-wave frequency modulation trapezoidal wave voltage that 14 feet of yF-1 are exported carries out second level amplification.
Transistor T
1The switch of making light emitting diode FD uses.T
1Conducting and by controlled by the output of modulation wave generator and the output of interruption period agitator.When continuous duty, the frequency of flashing of FD is the modulation wave frequency, and when intermittent operation, FD its luminous and time that extinguish, has reflected interruption period except that reflection modulation wave frequency.
Transistor T
6～T
9And resistance R
～R
Form power amplifier, it carries out power amplification with the square-wave frequency modulation trapezoidal wave voltage of the 6 feet output of yF-2, voltage and current after the amplification is sent into the elementary of output transformer SB, through the secondary and therapeutic electrode of SB square-wave frequency modulation trapezoidal wave electric current importing human body patient part is treated.
The time circuit of controlling continuous treatment time and interrupted treatment time is the identical circuit of two covers, by double base diode T
12And relay J
1Deng the continuous delay circuit that element is formed, its operation principle is as follows: after the energized, 12 volts voltage of direct-flow voltage regulation is by potentiometer W
4, resistance R
50To capacitor C
16C is worked as in charging
16On voltage rise to double base diode T
12Crest voltage the time, T then
12Conducting, controllable silicon T
13Be triggered, then relay J
1Adhesive shows that stream time arrives, carries out circuit working state and switches, and changes interrupter duty over to.Regulator potentiometer W
4, can set duration arbitrarily in the scope at 5 minutes to 20 minutes.By double base diode T
10And relay J
2Deng the interrupted delay circuit that element is formed, operation principle is identical.
Electrizer is at potentiometer W
2Be provided with K switch
2And K
3When treatment finishes, with W
2When rotating to 0, K
2, K
3Disconnect, break time circuit power and output loop, seance finishes, and gets ready for treat next time.
When treatment finishes, if do not establish K switch
3Although, with W
2Rotated to 0, but when cutting off the electricity supply K switch
1The time, because energy storage is discharged in the circuit, can produce a kind of excitement of discomfort to human body, set up K switch
3Cut off output loop, just avoided this unusual excitement.
Work process of the present utility model is as follows: connect and exchange 220 volts of power supplys.K closes a switch
1, promptly generation+E=+12 lies prostrate, and the burning voltage of-E=-12 volt reaches by transistor T for four high guaily unit device yF-1
1～T
5The each several part circuit of forming provides power supply, the power supply of yF-2 and power amplifier level by+EA=+18 volt and-the EA=-18 volt provides.Each agitator and amplifier circuit are all started working.K again closes a switch
2, K
3And rotational potentiometer W
2, can be with square-wave frequency modulation trapezoidal wave electric current by electrode input human lesion position.
Beginning is because the J in the time circuit
1, J
2All not adhesives of relay, J
1-1The normally closed contact closure makes C
15Can not charge.J
1-2Normal opened contact disconnects, and makes the interruption period agitator be output as off-state, does not control audion T
1And T
2Work, this moment be continuous output services state, work as C
1Charging interval is when reaching setting-up time, J
1Normally closed contact J
1-1Disconnect, make capacitor C
15Charging, normal opened contact J
1-2Closure, the output that makes the interruption period agitator is by diode D
1And D
2Control audion T
1And T
2Work, this moment be interrupted output services state, work as C
15Charging interval is when arriving setting-up time, then J
2Conducting, normal opened contact J
2-1Closure makes capacitor C
16Discharge is in order to work next time.Simultaneously, another normal opened contact J
2-2Closure is by diode D
7, D
8General-E voltage is added to audion T respectively
1And T
2Base stage, it is ended, thereby turn-offs output, this moment is again with potentiometer W
2Rotate to 0, cut-off switch K
2, K
3, seance finishes.
Regulator potentiometer W in the therapeutic process
1, the modulation methods wave frequency is selected arbitrarily in 1～200 hertz of scope; Regulate band switch BK, can in 2,4,6,8 kilo hertzs of fourth gear scopes, choose its carrier frequency wantonly.Regulator potentiometer W
2, can make the output crest voltage from 0～90 volt, electric current is selected arbitrarily from 0～80 milliampere.
Claims (7)
1, square-wave frequency modulation trapezoidal wave electrizer is a kind of novel electric therapy unit that belongs in the medical apparatus and instruments.This electrizer mainly is to produce alternating current to treat by electrode importing human body.Of the present utility model being characterised in that: by carrier generator, modulation wave generator, and modulation, amplifying circuit can produce square-wave frequency modulation trapezoidal wave electric current, and its therapeutic modality is that current amplitude is modulated continuously and intermittently.
It is 1～200 hertz of continuously adjustable square wave that the modulation wave generator of electrizer produces frequency.
2,, it is characterized in that described carrier generator can produce the trapezoidal wave that frequency is 2,4,6 kilo hertzs of third gear or 2,4,6,8 kilo hertzs of fourth gear according to the electrizer of claim 1.
3, according to the electrizer of claim 1, it is characterized in that having the identical double base diode delay circuit of two covers, delay time is adjustable continuously in 5～20 minutes scopes.
4, according to the electrizer of claim 1, it is characterized in that when treatment finishes, by with potentiometer W
2Co-axial K switch
3Cut off output current, cause that electric current produces excitement to human body thereby can avoid treating when finishing the powered-down switch.
5,, it is characterized in that the potentiometer W of described modulation wave generator according to the electrizer of claim 1
1Be logarithm resistance potentiometer.
6, according to the electrizer of claim 1, it is characterized in that after carrier generator, modulation wave generator, interruption period agitator and the waveform modulated first order voltage amplifier, remove outer meeting resistance R
1～R
3, R
6～R
8, R
15～R
17, R
27～R
29, capacitor C
1～C
4, C
7, potentiometer W
1In addition, in all integrated a slice four high guaily unit of all the other the whole circuit device stamen sheet.
7, according to the electrizer of claim 1, it is characterized in that ± 12 volts of regulated power supplys are to exchange 220 volts of blood pressure lowerings, by a slice 7812 and a slice 7,912 three end integrated voltage stabilizers, adding filter capacitor C after the rectification
17～C
22Form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87203225 CN87203225U (en) | 1987-05-06 | 1987-05-06 | Electrotherapeutic machine for modulating square wave into trapezoidal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87203225 CN87203225U (en) | 1987-05-06 | 1987-05-06 | Electrotherapeutic machine for modulating square wave into trapezoidal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87203225U true CN87203225U (en) | 1987-12-30 |
Family
ID=4819254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87203225 Withdrawn CN87203225U (en) | 1987-05-06 | 1987-05-06 | Electrotherapeutic machine for modulating square wave into trapezoidal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87203225U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100346568C (en) * | 2003-12-03 | 2007-10-31 | 台达电子工业股份有限公司 | Motor control circuit |
| CN108348748A (en) * | 2015-09-04 | 2018-07-31 | 赛恩神经刺激有限责任公司 | System, apparatus and method for the nerve stimulation with packet modulation |
-
1987
- 1987-05-06 CN CN 87203225 patent/CN87203225U/en not_active Withdrawn
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100346568C (en) * | 2003-12-03 | 2007-10-31 | 台达电子工业股份有限公司 | Motor control circuit |
| CN108348748A (en) * | 2015-09-04 | 2018-07-31 | 赛恩神经刺激有限责任公司 | System, apparatus and method for the nerve stimulation with packet modulation |
| CN108348353A (en) * | 2015-09-04 | 2018-07-31 | 赛恩神经刺激有限责任公司 | System, apparatus and method for the electric vestibular stimulation with envelope modulation |
| US10918518B2 (en) | 2015-09-04 | 2021-02-16 | Scion Neurostim, Llc | Method and device for neurostimulation with modulation based on an audio waveform |
| US10945879B2 (en) | 2015-09-04 | 2021-03-16 | Scion Neurostim, Llc | Systems, devices and methods for neurostimulation having a modulation of packets |
| US10945880B2 (en) | 2015-09-04 | 2021-03-16 | Scion Neurostim, Llc | Systems, devices and methods for galvanic vestibular stimulation having an envelope modulation |
| US11026835B2 (en) | 2015-09-04 | 2021-06-08 | Scion Neurostim, Llc | Systems, devices and methods including galvanic and caloric vestibular stimulation |
| CN108348748B (en) * | 2015-09-04 | 2021-12-03 | 赛恩神经刺激有限责任公司 | Systems, devices, and methods for neural stimulation with packet modulation |
| US11583439B2 (en) | 2015-09-04 | 2023-02-21 | Scion NeuroStim, Inc. | Systems, devices and methods for galvanic vestibular stimulation using a modulated version of a generated electrical signal |
| US11701253B2 (en) | 2015-09-04 | 2023-07-18 | Scion NeuroStim, Inc. | Systems, devices and methods including galvanic and caloric vestibular stimulation |
| US11865037B2 (en) | 2015-09-04 | 2024-01-09 | Scion NeuroStim, Inc. | Systems, devices and methods for galvanic vestibular stimulation having an envelope modulation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |