CN1065215A - A kind of electronic antiphlogistic and analgesic instrument - Google Patents
A kind of electronic antiphlogistic and analgesic instrument Download PDFInfo
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- CN1065215A CN1065215A CN 92101499 CN92101499A CN1065215A CN 1065215 A CN1065215 A CN 1065215A CN 92101499 CN92101499 CN 92101499 CN 92101499 A CN92101499 A CN 92101499A CN 1065215 A CN1065215 A CN 1065215A
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Abstract
The present invention is a kind of electronic antiphlogistic and analgesic instrument, it is made up of low-frequency square-wave generator, square wave generator of intermediate frequency, little duty cycle circuit and pulse output transformer etc., and output signal is for the dutycycle that is reduced by the synthetic intermediate frequency square waves of low-frequency square-wave and this train of pulse.The invention has the advantages that: import to human body with square wave, than other waveform can produce maximum contraction rate, permeability is best; By dwindling pulse duty factor rather than improving output frequency or amplitude improves output, so not only can reach enhancing stimulates to reach raising curative effect purpose, but also can avoid the side effect that brought because of too high lifting output frequency or amplitude human body.
Description
The present invention relates to a kind of electronic antiphlogistic and analgesic instrument, it comprises LF multivibrator, is subjected to the medium-frequency generator of low frequency signal amplitude modulation.
At present domestic disclosed medical electronic treating equipment device can be divided into substantially: intermediate-freuqncy signal output single low frequency signal output, single and frequency modulation, the output of amplitude modulation intermediate-freuqncy signal.The electric therapeutic instrument that low frequency signal modulated medium frequency signal output type all is provided as Chinese patent application 90100102.3,87104055.7 technical schemes that provided.
Various electronic therapeutic instruments all are based on principle of uniformity: produce contraction of incomplete tetanic property and complete tetanus contraction, reach therapeutical effect to improve vein and lymph circulation with alternation electric pulse stimulation human body.Because of the electric pulse stimulation of constant amplitude single-frequency is adapted to by human body easily, activate histiocytic function thereby lose, so all adopted modulation circuit, the wave mode that makes output signal, amplitude to change in the above-mentioned patent application by artificial rule; According to the human body reactance characteristic, electrical impulse frequency more height more can produce big current intensity and act on human body more deeply, so all adopt intermediate-freuqncy signal output in the above-mentioned patent application.But also there is its drawback in the depth of interaction of promoting electricity irritation with the raising output frequency; After bringing up to frequency to a certain degree, can make skin surface produce pain and skin temperature rising, departed from the required frequency of treatment, bring negative interaction to physical therapy.The prior art that also has stimulates strong, the degree of depth in order to increase, adopt the method that increases the output pulse amplitude, yet country has in the professional standard of the Central Shanxi Plain, low-frequency electronic therapeutic instrument and stipulates: can only be used for, little current range, to export pulse amplitude be unallowed so can excessively increase.
The objective of the invention is: overcome the deficiency of prior art, a kind of electronic therapeutic instrument that is output as the intermediate frequency square wave little duty cycle pulse signal of having modulated through low-frequency square-wave is provided.
The present invention is achieved in that same as the prior art, it also contains LF multivibrator, is subjected to the synthetic medium-frequency generator of low frequency signal, and characteristics are: it is made up of low-frequency square-wave multivibrator, square wave generator of intermediate frequency, little duty cycle circuit and pulse output transformer.This audio oscillator is made of the external branch road of RC of a time base circuit and multichannel different value, this agitator serves as to trigger input with each RC branch road junction point, when triggering signal is imported by different RC branch roads, then agitator is promptly exported the different frequency pulse, and its outfan is connected to the triggering input of medium-frequency generator; The output signal of medium-frequency generator is as the triggering input signal of little duty cycle circuit; Little duty cycle circuit outfan and a switching tube base stage are joined, and this switching tube collector series connection the primary coil of pulse output transformer.
On the such scheme basis, the present invention also can realize like this: be provided with a selection circuit that is made of latch and gate circuit, the multichannel of latch output Q end joins with each RC branch road of low-frequency square-wave multivibrator respectively, the triggering input of latch joins with a starting switch S respectively, the other end of open switch S all joins with same dc signal source, each trigger input end signal respectively through after the paraphase with signal and each output Q end signal and non-signal through and the non-back CP that controls latch hold.
The present invention also can realize like this: but set up an intervalometer that constitutes by the RC branch road of time base circuit and two switch selections, this timer output end joins through the phase inverter and the SCR control utmost point, and the controllable silicon input joins with power supply, outfan is connected in series mutually with the pulse output transformer primary coil.
Utilizing above-mentioned each scheme to realize when of the present invention, can suitably select square wave generator of intermediate frequency component parameters, make its output pulse frequency at 2000～3000HZ.
Compared with prior art, the present invention has following advantage:
1. according to relevant physical therapy theory, the electric pulse of amplitude is best to contraction maximum, permeability that human skin produces with square waveform equally, so output signal of the present invention adopts square-wave pulse.
2. in order to strengthen the stimulation of skin to promote medical effect, the prior art that has adopts and improves the output frequency method, but this can cause that skin surface produces pain, skin temperature raises, and departs from the required frequency of treatment, the anti-effect that brings to physical therapy; The prior art that also has adopts and improves the output amplitude method, but as low, intermediate frequency electronic therapeutic instrument be defined can only be used for, little current range, so that amplitude is difficult to improve is too many.The present invention does not adopt the method that improves output frequency or amplitude but utilizes the method that reduces dutycycle, improves output signal power to strengthen stimulus intensity to skin, so just not only can reach raising therapeutic effect purpose, but also the various negative interactions that can avoid above-mentioned prior art to bring.
Fig. 1 is the circuit block flow diagram of most preferred embodiment of the present invention.
Fig. 2 is the circuit theory diagrams of most preferred embodiment of the present invention.
Below in conjunction with accompanying drawing and most preferred embodiment the present invention is done further narration:
As shown in Figure 1, the present invention in this example is by selecting circuit, low-frequency square-wave multivibrator, square wave generator of intermediate frequency, amplifier, comparator, little duty cycle circuit, intervalometer and pulse output transformer to constitute.During work, according to the different syndromes of need treatment, gating is selected the different switches in the circuit, so triggering signal just is input in the audio oscillator by corresponding branch road, then this agitator is promptly exported the square-wave pulse of different frequency; The output signal of audio oscillator is transported to square wave generator of intermediate frequency as triggering signal, and then medium-frequency generator is promptly exported a string intermediate frequency square-wave pulse of having modulated through corresponding low-frequency square-wave; The intermediate frequency output signal is delivered to little duty cycle circuit input after amplifying through the amplifier amplitude, the signal of output is with amplitude such as input signal, equifrequent but has dwindled the square waves of dutycycle, this pulse signal is through pulse output transformer, relends to help battery lead plate and promptly transport to the human body affected part and carry out physical therapy.
Below with reference to Fig. 2, circuit of the present invention and operation principle thereof are done a narration:
In this example, selecting circuit is by latch IC
1, one group of gate circuit and one group of Push switch S constitute.Switch S
1～S
4One be terminated at same trigger signal source, the other end and be connected to IC respectively
1Four inputs; IC
1Four outfan Q
1～Q
4All as NAND gate Z
1Input; Switch S
1～S
4With latch IC
1That end that joins also respectively draw simultaneously one the tunnel pass through paraphase respectively after, jointly as NAND gate Z
3Input signal; Z
3Output through Z
4Behind the phase inverter, with NAND gate Z
1Output jointly as NAND gate Z
2Input; Z
2Output be connected to latch IC
1CP end.
When not working, switch S
1～S
4All disconnect; During work, the operator selects wherein arbitrary switch motion as required for use, and surplus person still disconnects.With switch S
1Be example: after it is connected, Q
1=0, Q
1=1, door Z
1=1, this moment S
1Signal through being 0 to transport to a Z behind the phase inverter
3So, door Z
3=1, then the door Z
4=0, and then door Z
2=1, i.e. CP=1.Work as S
1Be disconnected again, because IC
1The RC circuit that input connect has constituted the delay circuit of T time, like this from S
1Disconnecting moment plays Q
1Still can so keep Q in the section time at T
1=1, Q
1=0, Z
1=1; Yet from S
1One disconnects moment rises, from S
1The signal of being drawn is 1 through anti-phase, so Z
3=0, Z
4=1, owing to Z this moment
1, Z
4All export 1, so Z
2=0, promptly this moment, the CP end transferred 0 to by 1, and all like this Q ends, the output of Q end promptly have been latched, so Q
1=1 just can keep down always, selects by other switch until outage or operator again.
The low-frequency square-wave multivibrator is by time base circuit IC
2Constitute with four road RC branch roads, because of R
1～R
4Selected resistance difference, thus the triggering signal of process different branch input, can be at time base circuit IC
2Outfan obtains the square-wave pulse of corresponding different frequency.Select the Q in the circuit
1～Q
4Four outfans are respectively as the input of two-way electric switch 1～4, and an outfan of electric switch 1～4 respectively with R
1～R
4Join, like this, selected switch S
1, just can make IC
2Export a frequency and R
1Corresponding signal.
Square wave generator of intermediate frequency is by gate circuit Z
5, Z
6And corresponding RC element formation, the outfan of audio oscillator is connected to its triggering input, works as IC
2The low-frequency square-wave signal of output is 1 o'clock, the medium-frequency generator work that promptly is triggered, and its output signal promptly is by IC like this
2The intermediate frequency square-wave pulse that the low-frequency square-wave of output has been modulated.
In the end before the output, added one-level by IC
3The amplifier that constitutes reaches by Z
7The comparator of realizing, like this, modulated intermediate frequency square-wave signal through amplitude amplify, again after the comparator shaping, transport to little duty cycle circuit IC
4, and IC
4Output signal be and Z
7The same amplitude of output signal, same frequency, but dwindled the square waves of dutycycle.Reduce dutycycle, promptly improved output signal power, improve curative effect with this.
Little duty cycle circuit IC
4Outfan and switching tube BG base stage join, and the BG collector series connection the pulse output transformer primary coil.In order to adjust amplitude output signal, also be connected in series a potentiometer W on the BG colelctor electrode, in order to regulate output current.
In order can to control automatically in treating the time, the present invention also has one by time base circuit IC
5, C
2, R
5, R
6The intervalometer that controllable silicon T constitutes.R
5, R
6Respectively with C
2Constitute two different delay circuits, can choose wantonly by K switch.Delay circuit after selected, IC
5Output signal is promptly passed through the break-make of anti-phase back at corresponding time inner control controllable silicon T, and T is serially connected between power supply and the BG colelctor electrode, and like this if T has disconnected, pulse output transformer has promptly stopped output.
In use, low-frequency square-wave by selected different frequency, the train of pulse that the present invention is exported produces the impression and the effect of acupuncture, massage, massage, cup on human body, with its stimulating acupoint, blood circulation promoting and blood stasis dispelling, accelerate blood circulation, promotion local lesion metabolism, can produce desirable physiotheraping effect with anti-inflammatory analgetic.
In this example, suitably choose R
1～R
4And C
1Value makes to start S
1Switch, IC
2Output signal frequency is 1～5HZ, and these shelves are used for the treatment of muscle such as to be sprained and need the strong stimulation disease; Start S
2, IC
2Output frequency is about 50HZ, and these shelves are used for the vasodilation purpose; Start S
3, IC
2Output frequency is 100HZ, and these shelves are used to cure neuralgia; Start S
4, IC
2Output frequency is 150HZ, and these shelves are used for the antiinflammatory purpose.As for medium-frequency generator, its relevant R.C component parameters is suitably arranged in pairs or groups, making its output frequency is 2000～3000HZ, because of this band frequency is little to the human body skin sensory nerve stimulation, the electric current length of penetration is bigger, therapeutic effect the best.The running voltage V=9v that this is routine, triggering signal and comparative voltage VD=5V, output average pulse voltage is 20V.
Claims (5)
1, a kind of electronic antiphlogistic and analgesic instrument comprises LF multivibrator, is subjected to the synthetic medium-frequency generator of low frequency signal, it is characterized in that: form by low-frequency square-wave multivibrator, square wave generator of intermediate frequency, little duty cycle circuit and pulse output transformer,
A, constitute the LF multivibrator that can select different output frequencies by time base circuit with the RC branch road of multichannel different value, this agitator serves as to trigger the triggering input that input, its outfan are connected to medium-frequency generator with each RC branch road junction point,
The output signal of b, medium-frequency generator is as the triggering input signal of little duty cycle circuit,
C, little duty cycle circuit outfan and a switching tube base stage are joined, and this switching tube collector series connection the primary coil of pulse output transformer.
2, analgesia apparatus according to claim 1, it is characterized in that: have a selection circuit that constitutes by latch and gate circuit, the multichannel of latch output Q end joins with each RC branch road of low-frequency square-wave multivibrator respectively, the triggering input of latch joins with a starting switch S respectively, the other end of each way switch S all joins with same dc signal source, each trigger input end signal respectively through after the paraphase with signal and each output Q end signal and non-signal through and the non-back CP that controls latch hold.
3, analgesia apparatus according to claim 1 and 2, it is characterized in that: but an intervalometer that constitutes by the RC branch road of time base circuit and two switch selections had, this timer output end joins through the phase inverter and the SCR control utmost point, and the controllable silicon input joins with power supply, outfan is connected in series mutually with the pulse output transformer primary coil.
4, analgesia apparatus according to claim 1 and 2 is characterized in that: the frequency of oscillation of square wave generator of intermediate frequency is 2000～3000HZ.
5, analgesia apparatus according to claim 1 and 2 is characterized in that: the pulse output transformer primary coil is being connected in series an adjustable potentiometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92101499 CN1065215A (en) | 1992-03-03 | 1992-03-03 | A kind of electronic antiphlogistic and analgesic instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92101499 CN1065215A (en) | 1992-03-03 | 1992-03-03 | A kind of electronic antiphlogistic and analgesic instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1065215A true CN1065215A (en) | 1992-10-14 |
Family
ID=4939151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92101499 Pending CN1065215A (en) | 1992-03-03 | 1992-03-03 | A kind of electronic antiphlogistic and analgesic instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1065215A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107308544A (en) * | 2017-07-03 | 2017-11-03 | 陈坚胜 | A kind of physiotherapy equipment and its control method |
-
1992
- 1992-03-03 CN CN 92101499 patent/CN1065215A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107308544A (en) * | 2017-07-03 | 2017-11-03 | 陈坚胜 | A kind of physiotherapy equipment and its control method |
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