CN203694400U - Computer intermediate-frequency therapeutic instrument - Google Patents
Computer intermediate-frequency therapeutic instrument Download PDFInfo
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- CN203694400U CN203694400U CN201320857333.7U CN201320857333U CN203694400U CN 203694400 U CN203694400 U CN 203694400U CN 201320857333 U CN201320857333 U CN 201320857333U CN 203694400 U CN203694400 U CN 203694400U
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Abstract
The utility model discloses a computer intermediate-frequency therapeutic instrument, which comprises a control unit, a central processor, a digital-to-analog converter, a power amplifier, a step-up transformer, a first rheostat and an alarm detection unit. The central processor is configured to receive a control signal transmitted by the control unit, and outputs a digital signal to the digital-to-analog converter. The digital-to-analog converter is configured to convert the received digital signal into an analog signal and transmit the analog signal to the power amplifier through the first rheostat. The power amplifier is configured to perform the power amplification for the received signal and then transmit the signal to the step-up transformer. The step-up transformer is configured to boost the voltage of the received signal and then output an intermediate-frequency signal to a conductive rubber dielectric electrode. The input end of the alarm detection unit is connected with the first rheostat, and the output end of the alarm detection unit is connected with the central processor to output a detection signal to the central processor. According to the technical scheme of the utility model, the computer intermediate-frequency therapeutic instrument is stable in waveform and high in reliability. By means of the computer intermediate-frequency therapeutic instrument, the amplitude and the width of the waveform can be adjusted, so that the requirements of users can be met.
Description
Technical field
This utility model belongs to medium-frequency generator technical field, specifically, relates to a kind of computer medium-frequency electrotherapy.
Background technology
Existing computer medium-frequency electrotherapy major part can only be exported limited several frequencies, and these frequencies mainly realize by analog circuit, and circuit complexity, stability of waveform are not high, and cannot realize the control of amplitude, frequency etc. to waveform.
Computer medium-frequency electrotherapy adopts the electric current of intermediate frequency of low frequency modulations, has both retained the characteristic of low frequency electricity, has brought into play again the feature of medium frequency electric, and because its waveform, wave amplitude, frequency and modulation degree constantly change, human body is difficult for producing adaptability.Patient in the process for the treatment of, have push away, take, by, push, dial, strike, the polyesthesia such as rolling, chatter, be subject to the favorable comment of extensive patients.
Summary of the invention
The purpose of this utility model is to provide a kind of computer medium-frequency electrotherapy, has realized the waveform of being selected intermediate-freuqncy signal by computer, and can adjust the amplitude of waveform and width.
In order to solve the problems of the technologies described above, this utility model is achieved by the following technical solutions:
A kind of computer medium-frequency electrotherapy, comprises control unit, central processing unit, digital to analog converter, power amplifier, booster transformer, the first rheostat and alarm detecting unit; The control signal of described central processing unit reception control unit transmission, and output digit signals is to digital to analog converter, digital to analog converter converts the digital signal receiving to analogue signal, transfers to power amplifier by the first rheostat; Described power amplifier carries out transferring to booster transformer after power amplification to the received signal, exports intermediate-freuqncy signal to conductive rubber media electrode after booster transformer boosts; The input of described alarm detecting unit connects the first rheostat, and the outfan of described alarm detecting unit connects central processing unit, to central processing unit output detection signal.
Further, described alarm detecting unit comprises comparator, the outfan of described comparator connects central processing unit, in-phase input end ground connection, inverting input connects described the first rheostatic sliding end, described first rheostat one end receives the analogue signal of digital to analog converter output, other end ground connection.
Further again, between described alarm detecting unit and digital to analog converter, be connected with operational amplifier, the input of described operational amplifier receives the analogue signal of digital to analog converter output, and outfan connects the first described rheostat.
Further again, the in-phase input end of described power amplifier connects described the first rheostatic sliding end by the first electric capacity, inverting input is connected the outfan of power amplifier with the first resistance by the second electric capacity, the outfan of described power amplifier connects booster transformer by the 3rd electric capacity.
Preferably, elementary one end of described booster transformer connects the outfan of described power amplifier, and the other end connects one for regulating the adjustment unit of described power amplifier amplification; Conductive rubber media electrode described in the secondary connection of described booster transformer.
Further, in described adjustment unit, be provided with the second rheostat and the second resistance, after described the second rheostat and the series connection of the second resistance, be connected between the elementary and ground of described booster transformer, the intermediate node of described the second rheostat and the second resistance is connected the inverting input of power amplifier by the second electric capacity.
Further, be also provided with display unit in described computer medium-frequency electrotherapy, described display unit is connected with central processing unit, receives the display control signal of central processing unit output.
Preferably, described display control signal comprises that eight segment numeral pipes drive signal and position control signal, and described eight segment numeral pipes drive signal directly to export display unit to by central processing unit, and institute's rheme control signal transfers to display unit via drive circuit.
Further, be also provided with buzzer in described computer medium-frequency electrotherapy, described buzzer is connected with central processing unit, receives the Sound control signal of central processing unit output.
Described control unit is key switch combination, is connected between the I/O mouth and ground of central processing unit.
Compared with prior art, advantage of the present utility model and good effect are: computer medium-frequency electrotherapy waveform stabilization of the present utility model, reliability be high, can adjust the amplitude of waveform, width, have met the demand of user.
Read by reference to the accompanying drawings after the detailed description of this utility model embodiment, other features of the present utility model and advantage will become clearer.
Brief description of the drawings
Fig. 1 is the schematic block circuit diagram of a kind of embodiment of the computer medium-frequency electrotherapy that proposes of this utility model;
Fig. 2 is the circuit theory diagrams of a kind of embodiment of the computer medium-frequency electrotherapy that proposes of this utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in more detail.
Embodiment mono-, the computer medium-frequency electrotherapy of the present embodiment is mainly by control unit, central processing unit IC1, digital to analog converter IC2, power amplifier IC4, booster transformer T2, the first rheostat TR3 and alarm detecting unit composition, shown in Figure 1, wherein, the control signal that described central processing unit IC1 is connected with control unit and reception control unit is transmitted, central processing unit IC1 processes rear output digit signals to digital to analog converter IC2 to the control signal receiving, digital to analog converter IC2 converts the digital signal receiving to analogue signal, transfer to power amplifier IC4 by the first rheostat TR3, described power amplifier IC4 carries out after power amplification to the received signal, transfer to booster transformer T2, after boosting, exports booster transformer T2 intermediate-freuqncy signal to conductive rubber media electrode CN and CN2, the input of described alarm detecting unit connects the first rheostat TR3, and the outfan of described alarm detecting unit connects central processing unit IC1, to central processing unit IC1 output detection signal.
In described computer medium-frequency electrotherapy, display unit can also be set, described display unit is connected with central processing unit IC1, receives the display control signal of central processing unit output.In the present embodiment, described display unit is preferably charactron M1, and described charactron M1 receives the display control signal of central processing unit IC1 output, and shows according to display control signal.Described display control signal comprises that eight segment numeral pipes drive signal and position control signal, and described eight segment numeral pipes drive signal directly to export charactron M1 to by central processing unit IC1, and institute's rheme control signal transfers to charactron M1 via drive circuit.Specifically, outfan P10～P17 of described central processing unit IC1 is connected with charactron M1 by resistance R 1～R8 respectively, and output eight segment numeral pipes drive signal to charactron M1; The outfan TXD of described central processing unit IC1 is connected charactron M1 by drive circuit respectively with RXD, and carry-out bit controls signal to charactron M1 respectively.Described drive circuit is mainly made up of positive-negative-positive audion, specifically, the outfan TXD of described central processing unit IC1 connects the base stage of positive-negative-positive audion Q2 by resistance R 11, the colelctor electrode of described positive-negative-positive audion Q2 connects charactron M1, emitter stage connection+5V DC source; The outfan RXD of described central processing unit IC1 connects the base stage of positive-negative-positive audion Q1 by resistance R 10, the colelctor electrode of described positive-negative-positive audion Q1 connects charactron M1, emitter stage connection+5V DC source.In the time of the control signal of the position of the outfan TXD of central processing unit IC1 output low level, described positive-negative-positive audion Q2 saturation conduction, transfer to charactron M1 by+DC current that 5V DC source provides by the switch ways of positive-negative-positive audion Q2, for driving charactron M1 to show; In the time of the control signal of the position of the outfan RXD of central processing unit IC1 output low level, described positive-negative-positive audion Q1 saturation conduction, transfer to charactron M1 by+DC current that 5V DC source provides by the switch ways of positive-negative-positive audion Q1, for driving charactron M1 to show.
In described computer medium-frequency electrotherapy, buzzer B1 can also be set, one end ground connection of described buzzer B1, the other end connects the colelctor electrode of positive-negative-positive audion Q4 by resistance R 23, emitter stage connection+5V the DC source of described positive-negative-positive audion Q4, base stage connects the outfan T1 of central processing unit IC1 by resistance R 14, described buzzer B1 receives the Sound control signal of central processing unit IC1 output.When the Sound control signal of the outfan T1 of central processing unit IC1 output low level is during to the base stage of positive-negative-positive audion Q4, positive-negative-positive audion Q4 saturation conduction, thereby transfer to buzzer B1 by switch ways and the resistance R 23 of positive-negative-positive audion Q4, make buzzer B1 sounding by+DC current that 5V DC source provides.
Described control unit is preferably key switch combination, and described key switch is connected between the I/O of described central processing unit IC1 mouth and ground.In the present embodiment, described key switch combination can be selected by three key switch S1, S2, S3 composition, key switch S1 is prescribed regimen selection key, key switch S2 is intermediate-freuqncy signal output key, key switch S3 is that intermediate-freuqncy signal output stops key, described central processing unit IC1 is preferably chip AT89S52, described key switch S1, S2, one end of S3 connects respectively the input P20 of described central processing unit IC1, P21, P22, the other end is ground connection respectively, shown in Figure 2, the input P20 of described central processing unit IC1, P21, P22 receives respectively key switch S1, S2, the control signal of S3 transmission.
After central processing unit IC1 processes the control signal receiving, outfan P00～P07 output digit signals is to input D0～D7 of digital to analog converter IC2, and described digital to analog converter IC2 is preferably chip DAC0832.Because described chip DAC0832 output is current signal, and the present embodiment requires output voltage signal, therefore also need to arrange operational amplifier IC3, for converting the current signal of chip DAC0832 output to voltage signal, the preferred chip UA741CP of described operational amplifier IC3.Described chip DAC0832 converts the digital signal receiving to analog current signal, and by the analog current outfan IOUT1 of chip DAC0832, analog current signal is transferred to the input of described operational amplifier IC3, described operational amplifier IC3 converts analog current signal to analog voltage signal and transfers to the feedback resistance exit RFB of chip DAC0832, and transfers to power amplifier IC4 by the first rheostat TR3.The outfan of one end concatenation operation amplifier IC3 of described the first rheostat TR3, other end ground connection, sliding end connects the in-phase input end of power amplifier IC4 by resistance R 22, the first capacitor C 15, for adjusting the analog voltage signal intensity that transfers to power amplifier IC4.
In the present embodiment, described power amplifier IC4 is preferably chip TDA2003.The in-phase input end of described power amplifier IC4 is connected the sliding end of the first rheostat TR3 with resistance R 22 by the first capacitor C 15, and by the first capacitor C 15 and resistance R 21 ground connection, simultaneously by capacitor C 16 ground connection, the positive pole of described the first capacitor C 15 connects the in-phase input end of power amplifier IC4, the intermediate node of negative pole contact resistance R22 and resistance R 21.The reverse input end of described power amplifier IC4 connects the negative pole of the second capacitor C 13, the positive pole of described the second capacitor C 13 connects the outfan of power amplifier IC4 by the first resistance R 20, the outfan of described power amplifier IC4 connects the negative pole of the 3rd capacitor C 12, the positive pole of described the 3rd capacitor C 12 connects the elementary of described booster transformer T2, and the outfan of described power amplifier IC4 is by the 3rd capacitor C 12, capacitor C 14, resistance R 19 ground connection.
Elementary one end of described booster transformer T2 connects the outfan of power amplifier IC4 by the 3rd capacitor C 12, the elementary other end of booster transformer T2 connects adjustment unit, and described adjustment unit is for regulating the amplification of described power amplifier IC4.
Described adjustment unit is mainly made up of the second rheostat TR2 and the second resistance R 18, described the second rheostat TR2 and the second resistance R 18 are connected, and be connected between the elementary other end and ground of described booster transformer T2, the intermediate node of described the second rheostat TR2 and the second resistance R 18 is connected the inverting input of described power amplifier IC4 by the second capacitor C 13.After described resistance R 16, R17 parallel connection, be connected between the sliding end and ground of the second rheostat TR2.In the time of the voltage signal distortion of described power amplifier IC4 output, by regulating the resistance of the second rheostat TR2 to carry out the amplification of regulating power amplifier IC4, the voltage signal of output is met the demands.
Conductive rubber media electrode CN and CN2 described in the secondary connection of described booster transformer T2, between conductive rubber media electrode CN and CN2, be connected with a load resistance RES1, described conductive rubber media electrode CN is used for contacting with human body with CN2, electric current of intermediate frequency is imported to inside of human body, reach the object for the treatment of disease.
Whether playback in order to detect the first rheostat TR3 in the time that computer medium-frequency electrotherapy powers on, in described computer medium-frequency electrotherapy, be provided with alarm detecting unit, described alarm detecting unit, described comparator IC5 is preferably chip LM393 if being mainly made up of comparator IC5.The in-phase input end of described comparator IC5 is by resistance R 26 ground connection, inverting input connects the sliding end of the first rheostat TR3 by resistance R 25, the outfan of described comparator IC5 connects the input INT0 of central processing unit IC1, simultaneously by connect+5V of resistance R 24 DC source.While powering on due to computer medium-frequency electrotherapy, operational amplifier IC3 resets, and the voltage signal of output high level, if the first rheostat TR3 does not playback, the voltage signal of the high level of operational amplifier IC3 output transfers to the inverting input of comparator IC5 by the first rheostat TR3, comparator IC5 output low level signal is to the input INT0 of central processing unit IC1.Central processing unit IC1 is according to the low level signal of the comparator IC5 transmission receiving, forbid outfan P00～P07 output digit signals, pass through the Sound control signal of outfan T1 output low level to the base stage of positive-negative-positive audion Q4 simultaneously, make positive-negative-positive audion Q4 saturation conduction, thereby make buzzer B1 sounding alarm.
The workflow of described computer medium-frequency electrotherapy is: in the time that computer medium-frequency electrotherapy powers on, central processing unit IC1 and other chip resets, whether comparator IC5 detects the first rheostat TR3 and playbacks, if the first rheostat TR3 does not playback, comparator IC5 is to central processing unit IC1 output low level signal, central processing unit IC1 receives after the low level signal of comparator IC5 output, forbid outfan P00～P07 output digit signals, simultaneously the Sound control signal controlling buzzer B1 sounding alarm of output low level.If the first rheostat TR3 playbacks, select the waveform of intermediate-freuqncy signal by key switch S1, by key switch S2 output intermediate-freuqncy signal, central processing unit IC1 is according to the combination of key switch S1 and S2, output display controls signal to charactron M1 and shows, output digit signals is to digital to analog converter IC2 simultaneously, pass through successively operational amplifier IC3, the first rheostat TR3, power amplifier IC4, the effect of booster transformer T2, export satisfactory intermediate-freuqncy signal, and by conductive rubber media electrode CN and CN2, electric current of intermediate frequency is imported to inside of human body, play the effect for the treatment of disease.
Certainly; above-mentioned explanation is not to restriction of the present utility model; this utility model is also not limited in above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art make in essential scope of the present utility model, also should belong to protection domain of the present utility model.
Claims (10)
1. a computer medium-frequency electrotherapy, is characterized in that: comprise control unit, central processing unit, digital to analog converter, power amplifier, booster transformer, the first rheostat and alarm detecting unit; The control signal of described central processing unit reception control unit transmission, and output digit signals is to digital to analog converter, digital to analog converter converts the digital signal receiving to analogue signal, transfers to power amplifier by the first rheostat; Described power amplifier carries out transferring to booster transformer after power amplification to the received signal, exports intermediate-freuqncy signal to conductive rubber media electrode after booster transformer boosts; The input of described alarm detecting unit connects the first rheostat, and the outfan of described alarm detecting unit connects central processing unit, to central processing unit output detection signal.
2. computer medium-frequency electrotherapy according to claim 1, it is characterized in that: described alarm detecting unit comprises comparator, the outfan of described comparator connects central processing unit, in-phase input end ground connection, inverting input connects described the first rheostatic sliding end, described first rheostat one end receives the analogue signal of digital to analog converter output, other end ground connection.
3. computer medium-frequency electrotherapy according to claim 2, it is characterized in that: between described alarm detecting unit and digital to analog converter, be connected with operational amplifier, the input of described operational amplifier receives the analogue signal of digital to analog converter output, and outfan connects the first described rheostat.
4. computer medium-frequency electrotherapy according to claim 3, it is characterized in that: the in-phase input end of described power amplifier connects described the first rheostatic sliding end by the first electric capacity, inverting input is connected the outfan of power amplifier with the first resistance by the second electric capacity, the outfan of described power amplifier connects booster transformer by the 3rd electric capacity.
5. computer medium-frequency electrotherapy according to claim 4, is characterized in that: elementary one end of described booster transformer connects the outfan of described power amplifier, and the other end connects one for regulating the adjustment unit of described power amplifier amplification; Conductive rubber media electrode described in the secondary connection of described booster transformer.
6. computer medium-frequency electrotherapy according to claim 5, it is characterized in that: in described adjustment unit, be provided with the second rheostat and the second resistance, after described the second rheostat and the series connection of the second resistance, be connected between the elementary and ground of described booster transformer, the intermediate node of described the second rheostat and the second resistance is connected the inverting input of power amplifier by the second electric capacity.
7. according to the computer medium-frequency electrotherapy described in any one in claim 1 to 6, it is characterized in that: in described computer medium-frequency electrotherapy, be also provided with display unit, described display unit is connected with central processing unit, receives the display control signal of central processing unit output.
8. computer medium-frequency electrotherapy according to claim 7, it is characterized in that: described display control signal comprises that eight segment numeral pipes drive signal and position control signal, described eight segment numeral pipes drive signal directly to export display unit to by central processing unit, and institute's rheme control signal transfers to display unit via drive circuit.
9. according to the computer medium-frequency electrotherapy described in any one in claim 1 to 6, it is characterized in that: in described computer medium-frequency electrotherapy, be also provided with buzzer, described buzzer is connected with central processing unit, receives the Sound control signal of central processing unit output.
10. according to the computer medium-frequency electrotherapy described in any one in claim 1 to 6, it is characterized in that: described control unit is key switch combination, is connected between the I/O mouth and ground of central processing unit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320857333.7U CN203694400U (en) | 2013-12-24 | 2013-12-24 | Computer intermediate-frequency therapeutic instrument |
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| CN201320857333.7U CN203694400U (en) | 2013-12-24 | 2013-12-24 | Computer intermediate-frequency therapeutic instrument |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104984477A (en) * | 2015-07-31 | 2015-10-21 | 成都千里电子设备有限公司 | Multi-electrode electrotherapy |
| CN104998350A (en) * | 2015-07-31 | 2015-10-28 | 成都千里电子设备有限公司 | Electrotherapy apparatus convenient for therapy remote monitoring or physical therapy |
| CN105056391A (en) * | 2015-07-31 | 2015-11-18 | 成都千里电子设备有限公司 | Intermediate-frequency therapeutic instrument |
| CN105056389A (en) * | 2015-07-31 | 2015-11-18 | 成都千里电子设备有限公司 | Intermediate-frequency electrotherapy instrument suitable for application in household |
| CN105879220A (en) * | 2015-04-16 | 2016-08-24 | 周彧 | Middle and low frequency computer therapeutic instrument |
| CN106798965A (en) * | 2017-03-06 | 2017-06-06 | 桂林市威诺敦医疗器械有限公司 | The direction Medicine diffuser of function is detected with skin aging |
| CN108498319A (en) * | 2018-04-24 | 2018-09-07 | 河南爱因糖尿病健康科学研究院股份有限公司 | Diabetic supersession therapeutic equipment and its method for generating class sinusoidal signal |
| CN108619615A (en) * | 2017-03-16 | 2018-10-09 | 天津市舒沥通医疗器械科技有限公司 | A kind of model electrochemical hyperplasia of prostate treating apparatus |
| CN108744275A (en) * | 2018-06-22 | 2018-11-06 | 暨南大学 | A kind of wearable transcutaneous electrical stimulation medical apparatus for treating menalgia |
| CN108904997A (en) * | 2018-09-17 | 2018-11-30 | 深圳市名家汇科技股份有限公司 | A kind of physical therapy stool device |
| CN114306927A (en) * | 2021-12-29 | 2022-04-12 | 苏州好博医疗器械股份有限公司 | Intermediate frequency electric wave modulation circuit and modulation method |
-
2013
- 2013-12-24 CN CN201320857333.7U patent/CN203694400U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105879220A (en) * | 2015-04-16 | 2016-08-24 | 周彧 | Middle and low frequency computer therapeutic instrument |
| CN104984477A (en) * | 2015-07-31 | 2015-10-21 | 成都千里电子设备有限公司 | Multi-electrode electrotherapy |
| CN104998350A (en) * | 2015-07-31 | 2015-10-28 | 成都千里电子设备有限公司 | Electrotherapy apparatus convenient for therapy remote monitoring or physical therapy |
| CN105056391A (en) * | 2015-07-31 | 2015-11-18 | 成都千里电子设备有限公司 | Intermediate-frequency therapeutic instrument |
| CN105056389A (en) * | 2015-07-31 | 2015-11-18 | 成都千里电子设备有限公司 | Intermediate-frequency electrotherapy instrument suitable for application in household |
| CN106798965A (en) * | 2017-03-06 | 2017-06-06 | 桂林市威诺敦医疗器械有限公司 | The direction Medicine diffuser of function is detected with skin aging |
| CN108619615A (en) * | 2017-03-16 | 2018-10-09 | 天津市舒沥通医疗器械科技有限公司 | A kind of model electrochemical hyperplasia of prostate treating apparatus |
| CN108619615B (en) * | 2017-03-16 | 2023-02-24 | 天津市舒沥通医疗器械科技有限公司 | Electrochemical therapeutic apparatus for prostatic hyperplasia |
| CN108498319A (en) * | 2018-04-24 | 2018-09-07 | 河南爱因糖尿病健康科学研究院股份有限公司 | Diabetic supersession therapeutic equipment and its method for generating class sinusoidal signal |
| CN108744275A (en) * | 2018-06-22 | 2018-11-06 | 暨南大学 | A kind of wearable transcutaneous electrical stimulation medical apparatus for treating menalgia |
| CN108904997A (en) * | 2018-09-17 | 2018-11-30 | 深圳市名家汇科技股份有限公司 | A kind of physical therapy stool device |
| CN114306927A (en) * | 2021-12-29 | 2022-04-12 | 苏州好博医疗器械股份有限公司 | Intermediate frequency electric wave modulation circuit and modulation method |
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Granted publication date: 20140709 Termination date: 20191224 |