Medical low-frequency electric pulse therapeutic instrument

Abstract

The invention creatively discloses a medical low-frequency electric pulse therapeutic instrument, which comprises a power supply module, a high-voltage generating circuit used for generating a high voltage, a pulse output circuit used for generating a pulse waveform, and a system controller. The control signal output end of the system controller is respectively connected with the control signal input end of the high-voltage generating circuit and the control signal input end of the pulse output circuit. The high-voltage output end of the high-voltage generating circuit is connected with the high-voltage power supply end of the pulse output circuit. The power supply module supplies the power to the high-voltage generating circuit, the pulse output circuit and the system controller respectively. The medical low-frequency electric pulse therapeutic instrument adopts the system controller to control the voltage value of the high-voltage generating circuit and the pulse characteristics of the pulse output circuit. Therefore, the use safety of a user is ensured. Meanwhile, the pulse characteristics can be automatically adjusted by the user according to the requirement of the user. The usage comfort of the user is enhanced.

Description

technical field [0001] The invention relates to a therapeutic instrument, especially a medical low-frequency electric pulse therapeutic instrument. Background technique [0002] At present, with the improvement of people's living standards, more and more people begin to pay attention to health. The medical low-frequency electric pulse therapy instrument can provide people with fast and effective home care, and is loved by more and more families. However, there are still many problems in the existing low-frequency electric pulse therapeutic apparatus, for example: (1) The battery voltage is directly used as the system power supply, and the battery directly supplies power to the system without voltage stabilization, resulting in high voltage instability. The loss of power gradually attenuates; (2) The linear modulation of the output voltage cannot be achieved. The existing technology mostly uses a transformer to boost the voltage. Since the boost ratio of the transformer is fi...

AI Technical Summary

Problems solved by technology

However, there are still many problems in the existing low-frequency electric pulse therapeutic apparatus, for example: (1) The battery voltage is directly used as the system power supply, and the battery directly supplies power to the system without voltage stabilization, resulting in high voltage instability. The loss of power gradually attenuates; (2) The linear modulation of the output voltage cannot be achieved. The existing technology mostly uses a transformer to boost the voltage. Since the boost ratio of the transformer is fixed, a point device is connected in series at the output end for output Intensity adjustment, digital control of the output intensity cannot be achieved, and the circuit cost is high, the volume is large, and the miniaturization and portability of the equipment cannot be realized. Even if the BOOST method is adopted, several fixed frequency or pulse width combinations are used as the BOOST The boost circuit is driven without current feedback, and the boost process is uncontrollable. It is reflected in the application that the amplitude modulation of the output waveform cannot be done. It does not meet the requirements of electrotherapy products to maintain stimulation by changing the waveform, and it cannot be suitable for different applications. The combination of treatment prescriptions for diseases has poor user experience; (3) During the output process, the output signal amplitude cannot be detected, which is impossible for some applications that require constant current output; (4) The application part is directly connected to the The human body has not been isolated. When the system is charging, if the charging part is damaged, such as the breakdown of the power adapter, there is a great potential safety hazard.

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