CN201073508Y - Bioelectric therapeutical instrument - Google Patents
Bioelectric therapeutical instrument Download PDFInfo
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- CN201073508Y CN201073508Y CNU2006201389978U CN200620138997U CN201073508Y CN 201073508 Y CN201073508 Y CN 201073508Y CN U2006201389978 U CNU2006201389978 U CN U2006201389978U CN 200620138997 U CN200620138997 U CN 200620138997U CN 201073508 Y CN201073508 Y CN 201073508Y
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Abstract
The utility model discloses a bioelectricity therapy instrument, belonging to technical fields of medical instrument and cosmetology, comprising a signal generator, a signal frequency selector, a gain control circuit, a power amplifier, a current sampling and full wave rectifier and filter circuit and a single chip microcomputer control circuit; the signal generator, the signal frequency selector, the gain control circuit, the power amplifier and the current sampling and full wave rectifier and filter circuit are connected in sequence and the signal frequency selector and the control end of the gain control circuit are connected with the single chip microcomputer control circuit; the bioelectricity therapy instrument also comprises an overflowing and open circuit protection circuit used for realizing power-off protection for the bioelectricity therapy instrument under abnormal conditions, the input end of the overflowing and open circuit protection circuit is connected with the output end of the current sampling and full wave rectifier and filter circuit and then connected with the input end of the single chip microcomputer control circuit via a voltage comparator. The utility model has the advantages that the instrument outputs sine waves; the energy is evenly distributed, with great capability of penetrating the focus, both safe and reliable.
Description
Technical field
This utility model relates to medical apparatus and instruments and beautifying technique field, relate in particular to a kind of Bioelectrically therapeutic apparatus, promptly on the basis of bio electricity medical science and bio electricity theory of Chinese medical science, a kind of massage apparatus that is used for the human biological electricity rehabilitation of designing, be used for bio electricity abnormity disease, comprise the massage treatment of various painful diseases, arthritis, paralysis, deafness, insomnia, beauty treatment, subhealth state.
Background technology
On medical apparatus and instruments and the beauty treatment instrument market, most electric therapeutic instrument and beautifying device all are voltage pulse output, electric current, electrode is placed directly in the patient treats on one's body, the theoretical basis of these equipment is local excitations, clinical trial certificate: the high-voltage pulse of moment can make the patient that fiber crops pain feel is significantly arranged, and energy is difficult to go deep into focus, is difficult to propagate along the body meridians, because frequency is big, can't allow the intrinsic bio electricity rehabilitation of body.Simultaneously, general electric therapeutic instrument, all unreceipted use of treatment output it the time patient maximum current that can bear be what, how many times electric current surpasses, safety guard begins action (closing output), to protect patient's safety.Whether the electric therapeutic instrument that has has safety guard all undeclared.
The utility model content
The purpose of this utility model be based on the theory of bio electricity medical science and stimulate (non local stimulation) fully, be target with rehabilitation body bio electricity; a kind of Bioelectrically therapeutic apparatus is provided; forming the loop by the output of Bioelectrically therapeutic apparatus and patient treats; or masseur's hand and patient form the loop jointly and treat; simultaneously; the therapeutic instrument sine wave output; Energy distribution is even; by massage technique electric current is imported the focus deep layer; make the patient feel comfortable, and in therapeutic instrument, be provided with safety guard.This utility model Bioelectrically therapeutic apparatus, the bio electricity meridian theory of the utilization bio electricity theory of TCM, bioelectric rehabilitation is combined with traditional Chinese traditional massage, bio electricity abnormity disease is comprised that diseases such as pain, paralysis, insomnia, presbyacusis, subhealth state have produced than the existing all inaccessible therapeutic effect of any medical procedure.Simultaneously, this Therapeutic Method cost is low, without any side effect, because individual resistance sizes has a long way to go, so required output voltage has bigger range of accommodation.
For achieving the above object, technical solution of the present utility model provides and comprises: signal generator 1, signal frequency selector 2, gain control circuit 3, power amplifier 4, current sampling and full-wave rectifier filter circuit 5 and single chip machine controlling circuit 7, described signal generator 1, signal frequency selector 2, gain control circuit 3, power amplifier 4 and current sampling and full-wave rectifier filter circuit 5 are linked in sequence, and the control end of signal frequency selector 2 and gain control circuit 3 is connected with single chip machine controlling circuit 7; This Bioelectrically therapeutic apparatus also comprises:
One overcurrent and open loop protection circuit 6; be used to realize the power-off protection of this Bioelectrically therapeutic apparatus under abnormal conditions; the input of described overcurrent and open loop protection circuit 6 is connected in the outfan of current sampling and full-wave rectifier filter circuit 5, and is connected with single chip machine controlling circuit 7 by voltage comparator.
Described overcurrent and open loop protection circuit 6 comprise current foldback circuit and open loop protection circuit.Described current foldback circuit comprises a voltage comparator and a digital regulation resistance; set an overcurrent protection voltage for digital regulation resistance in advance; when the voltage of current sampling and full-wave rectifier filter circuit output during greater than described overcurrent protection voltage; voltage comparator will be exported a low level as interrupt signal to single chip machine controlling circuit, make digital regulation resistance be output as zero.
Described open loop protection circuit comprises a voltage comparator and a digital regulation resistance, when entire circuit is in open-circuit condition, described voltage comparator will send interrupt signal INT1 and give single chip machine controlling circuit 7, single chip machine controlling circuit 7 will reduce the electric current output intensity, if within a certain period of time, it is normal that circuit recovers, and then single chip machine controlling circuit 7 also is adjusted into the electric current output intensity normally; Otherwise single chip machine controlling circuit 7 main channels will become 0 pattern, 0 output, and INT1 will close interruption this moment.
Described signal generator 1 is a sine wave signal generator, comprise 3 sine-wave generators, produce 150 hertz, 100 hertz, 50 hertz sine waves respectively, be adjusted into the sine wave that virtual value equals 3V, deliver to the input of signal frequency selector 2 then through separately potentiometer.
Described 50 hertz of sine-wave generators also produce a square wave synchronous with sine wave, export to signal frequency selector 2.
Described signal frequency selector 2 comprises that eight select P1.0, P1.1, P1.2, the P1.3 mouth of a MOS switch, enumerator and single-chip microcomputer, is used under the control of single chip machine controlling circuit 7 sine wave of 3 kinds of frequencies receiving automatic signal generator 1 is selected and switched.
Described eight to select a MOS switch be a CD4051 chip, and its output signal is exported to gain control circuit 3 through behind isolated amplifier; Described enumerator is a 74HC161 chip, for hexadecimal can preset coincidence counter; Described single chip machine controlling circuit 7 is a single chip computer AT 89S51 chip.
Described gain control circuit 3 is the X9313W chip, is used to adjust amplitude of output voltage, exports to power amplifier 4 after the signal that is received from signal frequency selector 2 is adjusted.
Described power amplifier 4 is the TDA2030 chip, and running voltage is+16V to form complementary symmetrical OCL power amplifier and directly promote output transformer.
This Bioelectrically therapeutic apparatus further comprises power supply 8, LED digital display circuit 9, keyboard 10 and pedal switch 11; Described LED digital display circuit 9 is connected in the display panel interface P4 of single chip machine controlling circuit 7, and described keyboard 10 is connected in the keypad interface P6 of single chip machine controlling circuit 7, and described pedal switch 11 is connected in the pedal switch interface P5 of single chip machine controlling circuit 7.
Described power supply comprises transformator, rectifier bridge, filter capacitor and 7812,7912,7805 chips, and being used to provides:
± 16V brute supply uses for power amplifier;
± 12V regulated power supply uses for operational amplifier, voltage comparator;
+ 5V regulated power supply uses for single-chip microcomputer and digital circuit.
Described Bioelectrically therapeutic apparatus, in use, patient and Bioelectrically therapeutic apparatus are connected into the polyphone loop, electrode contact patient two foot's Yongquan acupoint of Bioelectrically therapeutic apparatus, the relevant acupuncture point of another electrode contact sufferer; Or contact masseur hand, the masseur contacts patient body with hand, treats by massage.
Described Bioelectrically therapeutic apparatus, its described current foldback circuit, when head massage, its electric current is≤5mA that when massaging at other positions of health, its electric current is≤30mA.
This utility model Bioelectrically therapeutic apparatus is compared with other therapeutic instrument, and its advantage is:
1, the voltage current waveform of this instrument output is the square-wave pulse of AC sine wave rather than general instrument output;
2, this instrument has reliable safety protective circuit, when output current the time can be closed in moment greater than setting value.
3, the exportable suitable bionical electric current of Bioelectrically therapeutic apparatus is used for rehabilitation.It can carry out sequencing control to frequency, intensity and the treatment time etc. of output current easily, and has designed effective overcurrent safety protective circuit and open loop protection circuit
Description of drawings
Fig. 1 is this utility model Bioelectrically therapeutic apparatus circuit structure block diagram;
Fig. 2 is the circuit diagram of this utility model Bioelectrically therapeutic apparatus LED digital display circuit, pedal switch and keyboard;
Fig. 3 is the sketch map of this utility model Bioelectrically therapeutic apparatus guidance panel;
Fig. 4 is the sketch map of this utility model Bioelectrically therapeutic apparatus outward appearance.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer,, and, this utility model is further described with reference to accompanying drawing below in conjunction with specific embodiment.
As shown in Figure 1; Fig. 1 is this utility model Bioelectrically therapeutic apparatus circuit structure block diagram, and this Bioelectrically therapeutic apparatus comprises signal generator 1, signal frequency selector 2, gain control circuit 3, power amplifier 4, current sampling and full-wave rectifier filter circuit 5, overcurrent and open loop protection circuit 6, single chip machine controlling circuit 7, power supply 8, LED digital display circuit 9, keyboard 10 and pedal switch 11.Wherein, the circuit diagram of LED digital display circuit 9, keyboard 10 and pedal switch 11 as shown in Figure 2, Fig. 2 is the circuit diagram of this utility model Bioelectrically therapeutic apparatus LED digital display circuit, pedal switch and keyboard.
Below respectively each component units of above-mentioned composition Bioelectrically therapeutic apparatus is elaborated.
1, signal generator
2, signal frequency selector
Sine wave signal is sent to first amplifier through after the selection of frequency selective switch, delivers to the Y4 input of analog switch then again.When frequency selective switch was positioned at the 2nd grade or the 3rd grade, sine wave signal was not done any processing and is directly delivered to the com end and output to the 2nd amplifier then in analog switch, and this moment, signal frequency was 50Hz or 100Hz.When frequency switching was positioned at the 1st grade, the reset signal of enumerator was disengaged, and began to begin counting with the 50Hz square wave as count pulse.The binary output signal of enumerator is used for controlling the input Y4 of analog switch, Y5, Y6, the conversion successively between the Y7, per 4 clocks conversion one time.Wherein having only the Y4 end is sine wave signal, and all the other 3 inputs are 0V.Can obtain the sine wave signal at intermittence of 12.5Hz like this at the com end.
The effect of signal frequency selector 2 is under the control of single-chip microcomputer the sine wave of various frequencies to be selected and switched.It selects P1.0, P1.1, P1.2, the P1.3 mouth of MOS switch (CD4051) sum counter and single-chip microcomputer to form by eight.Enumerator is the 74HC161 chip, and it is that hexadecimal can preset coincidence counter.They and single-chip microcomputer cooperate, and pattern is in accordance with regulations changed 50Hz, 100Hz, 150Hz AC signal and 0V, have 7 kinds of patterns.
Wherein 4 kinds of simple modes such as following table:
Annotate: the P1.3 mouth is delivered to the end of packing into of enumerator after through a nor gate.When P1.3=1, the outfan of enumerator equals input, i.e. the output state of enumerator do not change because of the arrival of clock (fixing output).Above-mentioned 4 patterns all belong to this situation.
Below 3 kinds of patterns be P1.3=0, timer enters count status.
Mode 3:
When last table was seen the 3rd pulse, timer turned back to original state again, 2 beat circulation primary.The interruption waveform that its output is is first-harmonic with 50 hertz of sine waves, we claim it to be 25 hertz and are interrupted sine wave.
Pattern 2:
Pattern 1:
Following table combines above-mentioned 7 patterns:
" eight select a MOS switch " behind the signal process isolated amplifier (first amplifier) of output, to deliver to the control portion of gain branch.
3, gain control circuit
Control portion of gain divides i.e. first digital regulation resistance, and its effect is to adjust output voltage amplitude.The effect of digital regulation resistance and traditional potentiometer are just the same, and we adopt the X9313W chip, inner 32 taps, 10K ohm.The Vh termination is subjected to the signal from first amplifier, VL ground connection, and the output of Vw end is through the signal of adjusting range.After start powers on, Vw=0V.Under the control of single-chip microcomputer, when U/D=1, each INC pulse will make the output voltage of Vw rise one grade, and 31 grades arrive maximum.When U/D=0, each INC pulse will make the output voltage of Vw descend one grade, and maximum 31 grades arrive minima.Signal through the gain regulation and control is sent to second amplifier.
4, power amplifier
Power amplifier 4 is the TDA2030 chip, and running voltage is+16V to form complementary symmetry (OCL) power amplifier and directly promote output transformer.
5, current sampling and full-wave rectifier filter circuit
Current sampling resistor of series connection in the output loop of output transformer, this signal is exported a tributary voltage signal that is proportional to output current value after rectification.The output current of output transformer is 30 milliamperes to the maximum.One 51 ohmage is converted to current signal voltage signal and delivers to full-wave rectifier filter circuit, the d. c. voltage signal of an analog current of its output, 0.1V=1mA.This signal is sent to second voltage comparator and tertiary voltage comparator then.
6, overcurrent and open loop protection circuit
Overcurrent and open loop protection circuit 6 are used to realize the power-off protection of this Bioelectrically therapeutic apparatus under abnormal conditions; the input of described overcurrent and open loop protection circuit 6 is connected in the outfan of current sampling and full-wave rectifier filter circuit 5, and the voltage comparator outfan is connected with single chip machine controlling circuit 7.
Described overcurrent and open loop protection circuit 6 comprise current foldback circuit and open loop protection circuit.
Described current foldback circuit comprises a voltage comparator and a digital regulation resistance; set an overcurrent protection voltage for digital regulation resistance in advance; when the voltage of current sampling and full-wave rectifier filter circuit output during greater than described overcurrent protection voltage; voltage comparator will be exported a low level as interrupt signal to single chip machine controlling circuit, make digital regulation resistance be output as zero.
The effect of described current foldback circuit is to give second digital regulation resistance a predetermined overcurrent protection value (magnitude of voltage) by single-chip microcomputer; when the voltage of full-wave rectifier filter circuit output during greater than the predetermined value of second digital regulation resistance; second voltage comparator will send a low level and give single-chip microcomputer as interrupt signal INT0; single-chip microcomputer sends " 0 pattern " instruction again and gives frequency selector; making main channel signal is 0V; be output as zero thereby make, finally protected patient's safety.Instrument will send chimes of doom this moment, with warning patient and masseur.Second digital regulation resistance also adopts the X9313W chip, its Vh termination+3.2V voltage, and each INC pulse will make the Vw end be sent to the change in voltage 0.1V of second voltage comparator.Suppose that our predetermined overcurrent protection value is 20 milliamperes, single-chip microcomputer is made as 2.0V with Vw.Therapeutic instrument begins output services, and when output current surpasses 20 MAHs, the d. c. voltage signal of analog output current will be greater than 2.0V, and at this moment second voltage comparator is delivered to single-chip microcomputer with output low level as INT0, and output voltage is changed to 0V the most at last.
Described open loop protection circuit comprises a voltage comparator and a digital regulation resistance, when entire circuit is in open-circuit condition, described voltage comparator will send interrupt signal INT1 and give single chip machine controlling circuit 7, single chip machine controlling circuit 7 will reduce the electric current output intensity, if within a certain period of time, it is normal that circuit recovers, and then single chip machine controlling circuit 7 also is adjusted into the electric current output intensity normally; Otherwise single chip machine controlling circuit 7 main channels will become 0 pattern, 0 output, and INT1 will close interruption this moment.
If the effect of described open loop protection circuit is therapeutic electrode accidental on one's body the patient in therapeutic process, instrument will make output voltage drop to a very little value, meet accident preventing.We are transferred to 0.1V with potentiometer RT5, and after therapeutic instrument begins output services, and output intensity reaches after the certain value (being assumed to be the first digital regulation resistance position greater than 5), will allow INT1 to interrupt.In therapeutic process, when output current less than 1 MAH, we think that promptly it is opened a way.The tertiary voltage comparator will send the INT1 interrupt signal to single-chip microcomputer this moment, and single-chip microcomputer will be adjusted first digital regulation resistance (being assumed to be 6), make output intensity drop to a smaller value; In 10 seconds, if electrode connects again, then first digital regulation resistance progressively returns to former definite value again, continues treatment; If 10 second rear electrode also do not connect, then the main channel will become 0 pattern, 0 output will be closed interruption at INT1 this moment.
7, single chip machine controlling circuit
Single chip machine controlling circuit 7 adopts single chip computer AT 89S51 chip; it is the control section of whole Bioelectrically therapeutic apparatus; its input is connected with signal frequency selector 2, gain control circuit 3 and the outfan of overcurrent with open loop protection circuit 6 respectively, the signal of received signal frequency selector 2, gain control circuit 3 and overcurrent and open loop protection circuit 6 inputs.
In addition, single chip machine controlling circuit 7 also comprises display panel interface P4, pedal switch interface P5 and keypad interface P6, the LED digital display circuit is connected with single chip machine controlling circuit 7 by display panel interface P4, the pedal switch is connected with single chip machine controlling circuit 7 by pedal switch interface P5, and keyboard is connected with single chip machine controlling circuit 7 by keypad interface P6.
8, power supply
Power supply 8 is made up of transformator, rectifier bridge, filter capacitor and 7812,7912, chips such as 7805.Input voltage is 220V, exports as follows:
± 16V brute supply uses for power amplifier;
± 12V regulated power supply uses for operational amplifier, voltage comparator;
+ 5V regulated power supply uses for single-chip microcomputer and digital circuit.
9, LED digital display circuit
LED digital display circuit 9 is connected in the display panel interface P4 of single chip machine controlling circuit 7, and totally 6 bit digital display, single-chip microcomputer are serial output, and string and conversion chip are 74HC595.Serial data is seven sections demonstration symbols through BCD decoding.LED is a common cathode, green, and static the demonstration, o'clock light data=1.
P0.0: serial data, every string 6 * 8=48 position;
P0.1: the serial shift clock, every Bits Serial data are sent 1 pulse;
P0.2: and the line output clock, 1 pulse of every string data (48) output.
1# display: display mode, totally 6 kinds of patterns, 0,1,2,3,4,5,6.
The 2# display: show the overcurrent protection value, be divided into 6 grades, every grade equals 5 milliamperes.
3#4# display: show the working time, unit minute.
5#6# display: show output intensity to be set, totally 32 grades.
1# to 5# display does not have arithmetic point and shows, the arithmetic point of #6 display shows as output state and uses.
10, keyboard
1# key-mode selecting key: pre-selected pattern.
2# key-protection value setting key: predetermined protection value.
3# key-time is provided with key: preset treatment time.
4# key-intensity adds key: increase output intensity.
5# key-intensity subtracts key: reduce output intensity.
6# key-startup/stop key: by next time, instrument begins output; Press once, instrument stops output again.
1# key, 2# key, 3# key work before instrument begins output services, and be inoperative behind the beginning output services.
4#, 5#, 6# key work at any time.
The effect of foot switch is equal to 4# and 5# key.
11, pedal switch
More than each parts connect the back and form this utility model Bioelectricity Treating instrument circuit, place the shell of Bioelectrically therapeutic apparatus.
See that Fig. 3 is the sketch map of this utility model Bioelectrically therapeutic apparatus guidance panel, and Fig. 4 is the sketch map of this utility model Bioelectrically therapeutic apparatus outward appearance.
Using method of the present utility model is as follows:
1, opens the instrument case lid, two electrode wires are inserted on the corresponding socket.On two black battery lead plates, respectively put an absorbent cotton that sprayed water, and be fixed in patient's sole " Yongquan acupoint " and locate; On red battery lead plate, also put the absorbent cotton that sprayed water and place masseur's hand.
2, turn on the power switch.
3, according to patient's symptom needs, by " frequency selective switch " selected operating frequency.
4, according to patient's disease sites situation, by the selected overcurrent protection value of " setting of protection value " knob.The overcurrent protection value is 30mA to the maximum.
5, according to patient's disease sites situation, by " strength control " knob preset output voltage intensity.Actual current value when milliammeter shows massage.
If 6 masseurs or patient skin are too dry, can be in advance spraying water on hand the masseur begins massage operation after moistening again.The size of massage electric current depends on:
The height of a output voltage;
The size of b patient and masseur and battery lead plate contact area and dynamics;
The size of c masseur and patient skin contact area and push dynamics.
The electric current adjustment should use " strength control " knob to finish on a large scale.
7, the massage electric current to sensitive parts such as heads is difficult too big, generally surpasses 5mA.At this moment for the sake of assurance, the protection value just can be set in 5mA.When massaging electric current greater than 5mA, holding circuit can be closed output immediately, and the red alarm display lamp can be bright simultaneously, and the prompting instrument is in guard mode.At this moment the masseur should disengage with the patient immediately, and with power-off.Continue massage as need, can continue massage after turning on the power switch.Same reason when other positions are massaged, can be set the safeguard protection value according to actual needs.
Above-described specific embodiment; purpose, technical scheme and beneficial effect to utility model further describe; institute is understood that; the above only is a specific embodiment of the utility model; be not limited to this utility model; all within spirit of the present utility model and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. Bioelectrically therapeutic apparatus, comprise: signal generator (1), signal frequency selector (2), gain control circuit (3), power amplifier (4), current sampling and full-wave rectifier filter circuit (5) and single chip machine controlling circuit (7), described signal generator (1), signal frequency selector (2), gain control circuit (3), power amplifier (4) and current sampling and full-wave rectifier filter circuit (5) are linked in sequence, and the control end of signal frequency selector (2) and gain control circuit (3) is connected with single chip machine controlling circuit (7); It is characterized in that this Bioelectrically therapeutic apparatus also comprises:
One overcurrent and open loop protection circuit (6); be used to realize the power-off protection of this Bioelectrically therapeutic apparatus under abnormal conditions; the input of described overcurrent and open loop protection circuit (6) is connected in the outfan of current sampling and full-wave rectifier filter circuit (5), and is connected by the input of voltage comparator with single chip machine controlling circuit (7).
2. Bioelectrically therapeutic apparatus according to claim 1 is characterized in that, described overcurrent and open loop protection circuit (6) comprise current foldback circuit and open loop protection circuit;
Described current foldback circuit comprises a voltage comparator and a digital regulation resistance, set an overcurrent protection voltage for digital regulation resistance in advance, when the voltage of current sampling and full-wave rectifier filter circuit output during greater than described overcurrent protection voltage, voltage comparator will be exported a low level as interrupt signal to single chip machine controlling circuit, make digital regulation resistance be output as zero;
Described open loop protection circuit comprises a voltage comparator and a digital regulation resistance, when entire circuit is in open-circuit condition, described voltage comparator will send interrupt signal INT1 and give single chip machine controlling circuit (7), single chip machine controlling circuit (7) will reduce the electric current output intensity, if within a certain period of time, it is normal that circuit recovers, and then single chip machine controlling circuit (7) also is adjusted into the electric current output intensity normally; Otherwise single chip machine controlling circuit (7) main channel will become 0 pattern, 0 output, and INT1 will close interruption this moment.
3. Bioelectrically therapeutic apparatus according to claim 1, it is characterized in that, described signal generator (1) is a sine wave signal generator, comprise 3 sine-wave generators, produce 150 hertz, 100 hertz, 50 hertz sine waves respectively, be adjusted into the sine wave that virtual value equals 3V through separately potentiometer, deliver to the input of signal frequency selector (2) then.
4. Bioelectrically therapeutic apparatus according to claim 3 is characterized in that, described 50 hertz of sine-wave generators also produce a square wave synchronous with sine wave, export to signal frequency selector (2).
5. Bioelectrically therapeutic apparatus according to claim 1, it is characterized in that, described signal frequency selector (2) comprises that eight select P1.0, P1.1, P1.2, the P1.3 mouth of a MOS switch, enumerator and single-chip microcomputer, is used under the control of single chip machine controlling circuit (7) sine wave of 3 kinds of frequencies receiving automatic signal generator (1) is selected and switched.
6. Bioelectrically therapeutic apparatus according to claim 5 is characterized in that,
Described eight to select a MOS switch be a CD4051 chip, and its output signal is exported to gain control circuit (3) through behind isolated amplifier;
Described enumerator is a 74HC161 chip, for hexadecimal can preset coincidence counter;
Described single chip machine controlling circuit (7) is a single chip computer AT 89S51 chip.
7. Bioelectrically therapeutic apparatus according to claim 1, it is characterized in that, described gain control circuit (3) is the X9313W chip, is used to adjust amplitude of output voltage, exports to power amplifier (4) after the signal that will be received from signal frequency selector (2) is adjusted.
8. Bioelectrically therapeutic apparatus according to claim 1 is characterized in that, described power amplifier (4) is the TDA2030 chip, and running voltage is+16V to form complementary symmetrical OCL power amplifier and directly promote output transformer.
9. Bioelectrically therapeutic apparatus according to claim 1 is characterized in that, this Bioelectrically therapeutic apparatus further comprises power supply (8), LED digital display circuit (9), keyboard (10) and pedal switch (11);
Described LED digital display circuit (9) is connected in the display panel interface P4 of single chip machine controlling circuit (7), described keyboard (10) is connected in the keypad interface P6 of single chip machine controlling circuit (7), and described pedal switch (11) is connected in the pedal switch interface P5 of single chip machine controlling circuit (7).
10. Bioelectrically therapeutic apparatus according to claim 9 is characterized in that, described power supply comprises transformator, rectifier bridge, filter capacitor and 7812,7912,7805 chips, and being used to provides:
± 16V brute supply uses for power amplifier;
± 12V regulated power supply uses for operational amplifier, voltage comparator;
+ 5V regulated power supply uses for single-chip microcomputer and digital circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2006201389978U CN201073508Y (en) | 2006-09-27 | 2006-09-27 | Bioelectric therapeutical instrument |
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| CNU2006201389978U CN201073508Y (en) | 2006-09-27 | 2006-09-27 | Bioelectric therapeutical instrument |
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| CN201073508Y true CN201073508Y (en) | 2008-06-18 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101164635B (en) * | 2006-10-20 | 2010-05-12 | 王玉玲 | Low frequency resonance biological electric therapeutic instrument |
| CN102142668A (en) * | 2011-03-21 | 2011-08-03 | 湖北网安科技有限公司 | Overcurrent rapid-disconnection protection circuit based on digital control potentiometer technology |
| CN106267559A (en) * | 2016-09-27 | 2017-01-04 | 河南跃鉴禾健康管理有限公司 | A kind of channels and collaterals dredging regulating instrument and massage method |
| CN109172125A (en) * | 2018-10-09 | 2019-01-11 | 新疆裸眼卫士电子网络科技有限公司 | Miniature therapeutic equipment and miniature treatment system |
| CN116617579A (en) * | 2023-06-01 | 2023-08-22 | 武汉依瑞德医疗设备新技术有限公司 | Electrocardiosignal testing equipment for magnetic shock therapeutic instrument |
-
2006
- 2006-09-27 CN CNU2006201389978U patent/CN201073508Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101164635B (en) * | 2006-10-20 | 2010-05-12 | 王玉玲 | Low frequency resonance biological electric therapeutic instrument |
| CN102142668A (en) * | 2011-03-21 | 2011-08-03 | 湖北网安科技有限公司 | Overcurrent rapid-disconnection protection circuit based on digital control potentiometer technology |
| CN106267559A (en) * | 2016-09-27 | 2017-01-04 | 河南跃鉴禾健康管理有限公司 | A kind of channels and collaterals dredging regulating instrument and massage method |
| CN109172125A (en) * | 2018-10-09 | 2019-01-11 | 新疆裸眼卫士电子网络科技有限公司 | Miniature therapeutic equipment and miniature treatment system |
| CN116617579A (en) * | 2023-06-01 | 2023-08-22 | 武汉依瑞德医疗设备新技术有限公司 | Electrocardiosignal testing equipment for magnetic shock therapeutic instrument |
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