WO2008046332A1 - Appareil d'électrothérapie à résonance basse fréquence utilisé en biologie - Google Patents

Appareil d'électrothérapie à résonance basse fréquence utilisé en biologie Download PDF

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Publication number
WO2008046332A1
WO2008046332A1 PCT/CN2007/070676 CN2007070676W WO2008046332A1 WO 2008046332 A1 WO2008046332 A1 WO 2008046332A1 CN 2007070676 W CN2007070676 W CN 2007070676W WO 2008046332 A1 WO2008046332 A1 WO 2008046332A1
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Prior art keywords
circuit
control circuit
output
therapeutic apparatus
signal
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PCT/CN2007/070676
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English (en)
Chinese (zh)
Inventor
Yuling Wang
Ran Tian
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Yuling Wang
Ran Tian
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Publication of WO2008046332A1 publication Critical patent/WO2008046332A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/322—Electromedical brushes, combs, massage devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/08—Arrangements or circuits for monitoring, protecting, controlling or indicating

Definitions

  • the invention relates to the technical field of medical instruments, the field of beauty and the field of health care, in particular to a low frequency resonance bioelectric therapeutic apparatus, which is used for traditional Chinese medicine massage, massage therapy, electrotherapy and emerging bioelectrical rehabilitation massage for bioelectrical abnormality.
  • Diseases including various painful diseases (arthritis pain, pain caused by spinal lesions, low back pain, shoulder and back pain, headache, neuropathic pain, etc.), convulsions, deafness, especially senile deafness, insomnia, beauty, sub-health Intractable diseases such as mental illness, detoxification, diabetes, high blood pressure, cancer, AIDS, and hepatitis B. Background technique
  • the low-frequency resonance bioelectric therapy device is based on the combination of Dr. Wang’s theory of medical materials and Dr. Wang’s meridian hypothesis.
  • the output of the low-frequency resonance bioelectric therapy device and the patient's body formation circuit are treated. Or a part of the masseur's limbs and patients are treated in a loop.
  • the therapeutic device outputs a sine wave with uniform energy distribution, strong ability to penetrate deep into the lesion, comfortable patient feeling, and safety protection device in the therapeutic device.
  • the low-frequency resonance bioelectric therapeutic apparatus of the present invention is based on the combination of Dr.
  • the technical solution of the present invention provides: a signal generator 1, a signal frequency selector 2, a gain control circuit 3, a power amplifier 4, a current sampling and full-wave rectification filter circuit 5, and a single-chip control circuit 7,
  • the signal generator 1, the signal frequency selector 2, the gain control circuit 3, the power amplifier 4, and the current sampling and full-wave rectification and filtering circuit 5 are sequentially connected, and the control terminal of the signal frequency selector 2 and the gain control circuit 3 and the single-chip microcomputer
  • the control circuit 7 is connected;
  • the low frequency resonance bioelectric therapy device further comprises: an overcurrent and open circuit protection circuit 6 for implementing the power failure protection of the low frequency resonance bioelectric therapy device under abnormal conditions, the overcurrent and open circuit protection
  • the input end of the circuit 6 is connected to the output of the current sampling and full-wave rectification filter circuit 5, and is connected to the MCU control circuit 7 through a voltage comparator.
  • the overcurrent and open circuit protection circuit 6 includes an overcurrent protection circuit and an open circuit protection circuit.
  • the overcurrent protection circuit includes a voltage comparator (1-100) and a digital potentiometer (1-100), and an overcurrent protection voltage is preset for the digital potentiometer, when the current is sampled
  • the voltage comparator outputs a low level to the microcontroller control circuit as an interrupt signal, so that the digital potentiometer outputs zero.
  • the open circuit protection circuit comprises a voltage comparator (1-100) and a digital potentiometer (1-100).
  • the voltage comparator When the whole circuit is in an open state, the voltage comparator will issue an interrupt signal INT1 to the single chip control circuit. 7.
  • the MCU control circuit 7 will reduce the current output intensity. If the circuit returns to normal within a certain period of time, the MCU control circuit 7 also adjusts the current output intensity to normal; otherwise, the main channel of the MCU control circuit 7 will change to the 0 mode. 0 output, INT1 will turn off the interrupt at this time.
  • the signal generator 1 is a sine wave signal generator, comprising three sine wave generators (1-100), respectively generating 150 Hz, 100 Hz, 50 Hz sine waves, and adjusting them to effective values by respective potentiometers. A 3V sine wave is then sent to the input of signal frequency selector 2.
  • the 50 Hz sine wave generator also produces a square wave synchronized with the sine wave and outputs it to the signal frequency selector 2.
  • the signal frequency selector 2 comprises eight selected ones of MOS switches, counters and P1.0, Pl.l, P1.2 and P1.3 ports of the single chip microcomputer, and is used for receiving signals generated under the control of the single chip control circuit 7.
  • the sine waves of the three frequencies of the device 1 are selected and switched.
  • the eight-in-one MOS switch is a CD4051 chip, and the output signal is output to the gain control circuit 3 through the isolation amplifier;
  • the counter is a 74HC161 chip, which is a hexadecimal pre-settable synchronous counter;
  • the single-chip control circuit 7 is the single chip AT89S51 chip.
  • the gain control circuit 3 is an X9313W chip for adjusting the amplitude of the output voltage, and the signal received from the signal frequency selector 2 is adjusted and output to the power amplifier 4.
  • the power amplifier 4 is a TDA2030 chip with an operating voltage of +16V, which constitutes a complementary symmetrical OCL power amplifier that directly pushes the output transformer.
  • the low frequency resonance bioelectric therapeutic apparatus further includes a power source 8, an LED digital display circuit 9, a keyboard 10 and a foot pedal switch 11; the LED digital display circuit 9 is connected to a display panel interface P4 of the single chip microcomputer control circuit 7, the keyboard 10 It is connected to the keypad interface P6 of the single chip control circuit 7, and the foot pedal switch 11 is connected to the foot pedal switch interface P5 of the single chip control circuit 7.
  • the power supply includes a transformer, a rectifier bridge, a filter capacitor, and 7812, 7912, 7805 chips for providing:
  • the ⁇ 12V regulated power supply is used by the operational amplifier and voltage comparator;
  • +5V regulated power supply for use in microcontrollers and digital circuits.
  • the low-frequency resonance bioelectric therapeutic apparatus is connected to a series circuit, and an electrode of the low-frequency resonance bioelectric therapeutic apparatus (variation range 1-100) contacts the patient's two-legged Yongquan point (and other acupuncture points). ), the other electrode (1-100 electrodes) is in contact with other acupuncture points of the patient, or the masseur's hand, the masseur touches the patient's body with his hand, and conducts massage therapy.
  • the overcurrent protection circuit has a small current when the head is massaged, and the current can be increased when the body or the limbs are massaged.
  • the low frequency resonance bioelectric therapeutic apparatus of the present invention has advantages in comparison with other therapeutic apparatus in that:
  • the voltage and current waveform output by the instrument is an AC sine wave instead of the square wave pulse output by the general instrument;
  • This instrument has a reliable safety protection circuit that can be turned off instantly when the output current is greater than the set value.
  • the low frequency resonance bioelectric therapy device can output appropriate biomimetic current for rehabilitation treatment. It can conveniently control the frequency, intensity and treatment time of the output current, and design an effective overcurrent safety protection circuit and open circuit protection circuit.
  • FIG. 1 is a block diagram showing the circuit structure of the low frequency resonance bioelectric therapeutic apparatus of the present invention
  • FIG. 2 is a circuit diagram of the LED digital display circuit, the pedal switch and the keyboard of the low frequency resonance bioelectric therapeutic apparatus of the present invention
  • FIG. 3 is a schematic view of an operation panel of the low frequency resonance bioelectric therapeutic apparatus of the present invention.
  • FIG. 1 is a block diagram showing the circuit structure of a low frequency resonance bioelectric therapeutic apparatus according to the present invention.
  • the low frequency resonance bioelectric therapeutic apparatus includes a signal generator 1, a signal frequency selector 2, a gain control circuit 3, a power amplifier 4, and a current. Sampling and full-wave rectification and filtering circuit 5
  • the overcurrent and open circuit protection circuit 6 the single chip control circuit 7, the power supply 8, the LED digital display circuit 9, the keyboard 10 and the foot pedal switch 11.
  • the circuit diagrams of the LED digital display circuit 9, the keyboard 10 and the foot pedal switch 11 are shown in FIG. 2.
  • FIG. 2 is a circuit diagram of the LED digital display circuit, the foot pedal switch and the keyboard of the low frequency resonance bioelectric therapeutic apparatus of the present invention.
  • the signal generator 1 is a sine wave signal generator comprising three sine wave generators, respectively generating 150 Hz, 100 Hz, 50 Hz sine waves, which are adjusted by a respective potentiometer to a sine wave having an effective value equal to 3V, It is then sent to the input of the signal frequency selector 2, which is output to the input of the "eight-choice MOS switch".
  • the 50 Hz sine wave generator also generates a square wave synchronized with the sine wave, which is output to the signal frequency selector 2, and after level matching by the first voltage comparator and the output resistor in the signal frequency selector 2, The count pulse is sent to the counter.
  • the signal frequency selector 2 includes eight MOS switches, a counter and a P1.0, Pl.l, P1.2, and P1.3 ports of the single chip microcomputer, and is used for receiving the signal generator under the control of the single chip control circuit 7.
  • the sine waves of the three frequencies of 1 are selected and switched.
  • the eight-in-one MOS switch is a CD4051 chip, and the output signal is output to the gain control circuit 3 through the isolation amplifier;
  • the counter is a 74HC161 chip, which is a hexadecimal pre-settable synchronous counter;
  • the single-chip control circuit 7 is the single chip AT89S51 chip.
  • the sine wave signal is sent to the first amplifier after being selected by the frequency selection switch, and then It is sent to the Y4 input of the analog switch.
  • the sine wave signal is sent to the com terminal without any processing in the analog switch and then output to the 2nd amplifier, where the signal frequency is 50Hz or 100Hz.
  • the reset signal of the counter is released, and counting starts with a 50 Hz square wave as the count pulse.
  • the binary output signal of the counter is used to control the sequential conversion between the input terminals Y4, Y5, Y6, and Y7 of the analog switch, and is converted every four clocks. Only the ⁇ 4 end is a sine wave signal, and the other three inputs are 0V. This will result in an intermittent sine wave signal of 12.5 Hz at the com end.
  • the function of the signal frequency selector 2 is to select and switch sine waves of various frequencies under the control of the single chip microcomputer. It consists of an eight-choice MOS switch (CD4051) and counters and P1.0, Pl.l, P1.2, and P1.3 ports of the microcontroller.
  • the counter is the 74HC161 chip, which is a hexadecimal presettable synchronous counter. They are combined with a single-chip microcomputer to convert 50Hz, 100Hz, 150Hz AC signals and 0V according to the specified mode. There are 7 modes. Four of the simple modes are as follows:
  • Port P1.3 is sent to the load side of the counter after a NAND gate.
  • Mode 1 is a cycle of 4 beats, which we call a 12.5 Hz discontinuous sine wave.
  • Table below summarizes the above seven modes:
  • the gain control circuit 3 is an X9313W chip for adjusting the amplitude of the output voltage, and the signal received from the signal frequency selector 2 is adjusted and output to the power amplifier 4.
  • the gain control section is the first digital potentiometer, which is used to adjust the output voltage amplitude.
  • the digital potentiometer works exactly the same as a conventional potentiometer.
  • U/D 0, each INC pulse will cause the output voltage of Vw to drop by one step and up to 31 to reach the minimum value.
  • the gain-regulated signal is sent to the second amplifier.
  • power amplifier 4 is a TDA2030 chip with an operating voltage of +16V, which constitutes a complementary symmetrical (OCL) power amplifier that directly drives the output transformer.
  • OCL complementary symmetrical
  • a current sampling resistor is connected in series in the output loop of the output transformer, and the signal is rectified to output a tributary voltage signal proportional to the output current value.
  • the output current of the output transformer is up to 30 mA.
  • the overcurrent and open circuit protection circuit 6 is configured to implement power-off protection of the low-frequency resonance bioelectric therapeutic apparatus under abnormal conditions, and the input ends of the overcurrent and open-circuit protection circuit 6 are connected to the current sampling and full-wave rectification and filtering circuit 5 At the output end, the voltage comparator output is connected to the microcontroller control circuit 7.
  • the overcurrent and open circuit protection circuit 6 includes an overcurrent protection circuit and an open circuit protection circuit.
  • the overcurrent protection circuit includes a voltage comparator and a digital potentiometer, and an overcurrent protection voltage is preset for the digital potentiometer, when the current sampling and the full-wave rectification and filtering circuit output voltage are greater than the overcurrent protection voltage
  • the voltage comparator will output a low level to the microcontroller control circuit as an interrupt signal to make the digital potentiometer output zero.
  • the function of the overcurrent protection circuit is to reserve an overcurrent protection value (voltage value) for the second digital potentiometer by the single chip microcomputer, and when the voltage output by the full wave rectification and filtering circuit is greater than a predetermined value of the second digital potentiometer, the second The voltage comparator will issue a low level as the interrupt signal INTO to the microcontroller, and the microcontroller will then issue a "0 mode" command to the frequency selector.
  • the main channel signal is ov, so that the output is zero, which ultimately protects the patient's safety. At this point the instrument will sound an alarm to warn the patient and the masseur.
  • the second digital potentiometer is also used
  • the X9313W chip has a Vh termination of +3.2V, and each INC pulse will cause the voltage at the Vw terminal to be sent to the second voltage comparator to vary by 0.1V.
  • the microcontroller sets Vw to 2.0V. The therapeutic device starts outputting work. When the output current exceeds 20 mA, the DC voltage signal of the analog output current will be greater than 2.0V. At this time, the second voltage comparator sends the low level as INTO to the MCU, and finally the output voltage. Set to 0V.
  • the open circuit protection circuit includes a voltage comparator and a digital potentiometer.
  • the voltage comparator When the whole circuit is in an open state, the voltage comparator will issue an interrupt signal INT1 to the single chip control circuit 7, and the single chip control circuit 7 will reduce the current output intensity. If the circuit returns to normal within a certain period of time, the MCU control circuit 7 also adjusts the current output intensity to normal; otherwise, the main channel of the MCU control circuit 7 will change to 0 mode, 0 output, and INT1 will turn off the interrupt.
  • the function of the open circuit protection circuit is that if the treatment electrode accidentally falls off from the patient during the treatment, the instrument will reduce the output voltage to a small value to prevent accidents.
  • the output current is less than 1 mA, we think it is open.
  • the third voltage comparator will send an INT1 interrupt signal to the MCU, and the MCU will adjust the first digital potentiometer (assumed to be 6) to reduce the output intensity to a small value; within 10 seconds, if the electrode is connected again , the first digital potentiometer is gradually restored to the original value, Continue treatment; if the electrode is not connected after 10 seconds, the main channel will change to 0 mode, 0 output, INT1 will be off.
  • the single chip control circuit 7 adopts the single chip AT89S51 chip, which is the control part of the whole low frequency resonance bioelectric therapeutic instrument, and its input end is respectively connected with the signal frequency selector 2, the gain control circuit 3 and the output ends of the overcurrent and open circuit protection circuit 6, receiving Signal frequency selector 2, gain control circuit 3 and signals input by overcurrent and open circuit protection circuit 6.
  • the single chip control circuit 7 further includes a display panel interface P4, a foot pedal switch interface P5 and a keypad interface P6.
  • the LED digital display circuit is connected to the single chip control circuit 7 through the display panel interface P4, and the foot pedal switch is passed through the foot pedal switch.
  • the interface P5 is connected to the single chip control circuit 7, and the keyboard is connected to the single chip control circuit 7 through the keypad interface P6.
  • the power supply 8 consists of a transformer, a rectifier bridge, a filter capacitor, and chips such as 7812, 7912, and 7805.
  • the input voltage is 220V and the output is as follows:
  • +5V regulated power supply for use in microcontrollers and digital circuits.
  • the LED digital display circuit 9 is connected to the display panel interface P4 of the single chip control circuit 7, a total of 6 digital display, the single chip is a serial output, and the serial to parallel conversion chip is 74HC595.
  • the serial data is a seven-segment display that is BCD-decoded.
  • P0.2 Parallel output clock, one pulse per string of data (48 bits).
  • Display mode a total of 6 modes, 0, 1, 2, 3, 4, 5, 6.
  • 2# Display Displays the overcurrent protection value, which is divided into 6 files, each file is equal to 5 mA.
  • 5#6# Display Display setting output intensity, a total of 32 files.
  • the 1# to 5# display has no decimal point display, and the #6 display's decimal point is used as an output status display.
  • the keyboard 10 is connected to the keypad interface P6 of the single-chip microcomputer control circuit 7, and the keypad interface P6 is directly connected to the I/O port of the single-chip microcomputer, a total of six, and the working mode is inquired.
  • Software is required to delay for 50ms to eliminate jitter.
  • the buttons are defined as follows:
  • the 1# key, 2# key, and 3# key function before the instrument starts outputting work, and it does not work after starting the output operation.
  • the 4#, 5#, 6# keys work at all times.
  • the function of the foot switch is equivalent to the 4# and 5# keys.
  • the foot pedal switch 11 is connected to the foot pedal switch interface P5 of the single chip control circuit 7.
  • the above components are connected to form a circuit of the low frequency resonance bioelectric therapeutic apparatus of the present invention, which is placed in the outer casing of the low frequency resonance bioelectric therapeutic apparatus.
  • 3 is a schematic view of the operation panel of the low frequency resonance bioelectric therapeutic apparatus of the present invention. The method of use of the present invention is as follows:
  • the overcurrent protection value is up to 30mA.
  • the amount of massage current depends on: a high or low output voltage
  • the massage current for sensitive parts such as the head is not too large, generally not more than 5mA.
  • the protection value can be set to 5 mA.
  • the massage current is greater than 5 mA, the protection circuit will immediately turn off the output, and the red alarm indicator will light, indicating that the instrument is in a protected state.
  • the masseur should immediately disengage from the patient and turn off the power. If you need to continue the massage, you can continue to massage after turning on the power switch. For the same reason, when massaging other parts, you can set the safety protection value according to actual needs.

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  • Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Neurology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Electrotherapy Devices (AREA)

Abstract

L'invention concerne un appareil d'électrothérapie à résonance basse fréquence utilisé en biologie et t faisant partie des instruments médicaux, de coiffure et de santé. L'appareil comprend un générateur de signal, un sélecteur de fréquence de signal, un circuit de comande de gain, un amplificateur de sortie et un circuit d'échantillonnage de courant et redresseur à deux alternances et un circuit de filtrage, tous étant connectées normalement, et un circuit de commande à puce unique, cet appareil comprenant également un circuit de protection contre les surintensités de courant et contre les circuits ouverts et dont l'extrémité d'entrée est connectée à l'extrémité de sortie du circuit d'échantillonnage de courant et redresseur à deux alternances et du circuit de filtrage, et est connecté à l'extrémité d'entrée du circuit de commande à puce unique au moyen d'un comparateur de tension. La sortie de l'appareil est sinusoïdale, et lorsque le courant de sortie excède une valeur prédéterminée, l'appareil peut se fermer immédiatement.
PCT/CN2007/070676 2006-10-20 2007-09-12 Appareil d'électrothérapie à résonance basse fréquence utilisé en biologie WO2008046332A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610150631A CN101164635B (zh) 2006-10-20 2006-10-20 低频共振生物电治疗仪
CN200610150631.7 2006-10-20

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WO2008046332A1 true WO2008046332A1 (fr) 2008-04-24

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CN105107087A (zh) * 2015-08-26 2015-12-02 魏红月 电波治疗仪
CN107049720A (zh) * 2017-04-29 2017-08-18 广州市英侨科技发展有限公司 生物波视力训练仪
CN108421160A (zh) * 2018-05-09 2018-08-21 杭州市质量技术监督检测院 专用于电针治疗仪专用多参数信号检测电路及方法
CN108671395A (zh) * 2018-05-28 2018-10-19 江苏信息职业技术学院 一种嵌入式的人机交互型膀胱功能障碍治疗仪
CN109497932A (zh) * 2018-12-28 2019-03-22 南宁职业技术学院 视力自动测试装置
CN112336992A (zh) * 2020-10-27 2021-02-09 河北康以岛科技有限公司 一种前列腺红光治疗仪
CN115531730A (zh) * 2022-10-27 2022-12-30 南京大麦医疗科技有限公司 一种毫米波治疗仪波源输出自动调节电路

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CN106208218A (zh) * 2016-08-09 2016-12-07 安顺学院 一种锂电池充放电平衡装置
CN106267553A (zh) * 2016-08-10 2017-01-04 武汉德仁科技开发有限公司 一种微型糖尿病治疗仪
CN107320842B (zh) * 2017-08-14 2023-03-24 长春市罡恒电子有限责任公司 低频超声导药仪
CN109550149A (zh) * 2018-12-24 2019-04-02 江门市富美康保健仪器科技有限公司 一种新型组合功能眼科治疗仪
CN109966640A (zh) * 2019-04-22 2019-07-05 上海孚天量子科技有限公司 一种周波数复合康养仪
CN113134155A (zh) * 2021-04-06 2021-07-20 武汉光燚激光科技有限公司 透皮弥散术皮肤治疗仪

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Cited By (10)

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Publication number Priority date Publication date Assignee Title
CN105107087A (zh) * 2015-08-26 2015-12-02 魏红月 电波治疗仪
CN107049720A (zh) * 2017-04-29 2017-08-18 广州市英侨科技发展有限公司 生物波视力训练仪
CN108421160A (zh) * 2018-05-09 2018-08-21 杭州市质量技术监督检测院 专用于电针治疗仪专用多参数信号检测电路及方法
CN108421160B (zh) * 2018-05-09 2023-10-20 杭州市质量技术监督检测院 专用于电针治疗仪专用多参数信号检测电路及方法
CN108671395A (zh) * 2018-05-28 2018-10-19 江苏信息职业技术学院 一种嵌入式的人机交互型膀胱功能障碍治疗仪
CN108671395B (zh) * 2018-05-28 2024-03-08 江苏信息职业技术学院 一种嵌入式的人机交互型膀胱功能障碍治疗仪
CN109497932A (zh) * 2018-12-28 2019-03-22 南宁职业技术学院 视力自动测试装置
CN112336992A (zh) * 2020-10-27 2021-02-09 河北康以岛科技有限公司 一种前列腺红光治疗仪
CN115531730A (zh) * 2022-10-27 2022-12-30 南京大麦医疗科技有限公司 一种毫米波治疗仪波源输出自动调节电路
CN115531730B (zh) * 2022-10-27 2024-05-14 南京大麦医疗科技有限公司 一种毫米波治疗仪波源输出自动调节电路

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