基于STM32的低频穴位电刺激仪研制  

Development of acupoint electrical stimulators based on STM32

作　　者：张夏 孟青云 陈正龙 施宇帆 盛晓峰 胡兆燕 刘随意 Zhang Xia;Meng Qingyun;Chen Zhenglong;Shi Yufan;Sheng Xiaofeng;Hu Zhaoyan;Liu Suiyi(School of Medical Devices,Shanghai Medical College,Shanghai 201318,China;School of Nursing and Health Management,Shanghai Medical College,Shanghai 201318,China;Department of Medical Engineering,Shanghai Oriental Hepatobiliary Surgery Hospital,Shanghai 200438,China)

机构地区：[1]上海健康医学院医疗器械学院,上海201318 [2]上海健康医学院护理与健康管理学院,上海201318 [3]上海东方肝胆外科医院医学工程科,上海200438

出　　处：《现代仪器与医疗》2024年第1期26-34,共9页Modern Instruments & Medical Treatment

基　　金：上海市自然科学基金项目(21ZR1428300)。

摘　　要：临床数据表明对踝足穴位进行电刺激可以改善脑卒中后足下垂内翻患者运动功能、加快恢复患者行走能力。本文研制了一款基于STM32单片机控制的便携式穴位电刺激仪,可根据患者不同康复需求输出不同波形、刺激强度和脉冲宽度。该系统由电源管理电路,升压电路,电刺激电路,单片机核心电路与触控模块组成,采用外部电源或锂电池供电,且可输出频率为1~100Hz、电流强度为5~20mA、脉冲宽度为100~300μs的电荷平衡的双相波或脉冲波。仪器通过将经皮穴位电刺激与传统中医穴位理论相结合,以实现下肢康复治疗目的,可为踝足损伤或瘫痪等患者带来更好的恢复效果,也可为正常人提供缓解足部肌肉疲劳、促进气血循环的保健手段。基于STM32的穴位电刺激仪具有轻量小巧、操作直观简洁和刺激安全有效的优点,具有一定临床使用价值,可为之后的电刺激仪研制提供参考。Clinical data indicates that electrical stimulation of the ankle-foot acupoints can improve the motor function of patients with foot drop and inversion after stroke and accelerate the recovery of their walking ability.This paper developed a portable acupoint electrical stimulator controlled by an STM32 microcontroller,which can output different waveforms,stimulation intensities and pulse widths according to the different rehabilitation needs of patients.The system consists of a power management circuit,a boost circuit,an electrical stimulation circuit,a microcontroller core circuit and a touch screen module.It is powered by an external power supply or a lithium battery and can output charge-balanced biphasic or pulse waves with a frequency of 1~100Hz,current intensity of 5~20mA and pulse width of 100~300ms.The instrument combines transcutaneous acupoint electrical stimulation with traditional Chinese medical acupuncture theory to achieve the purpose of lower limb rehabilitation treatment.It can bring better recovery results for patients with ankle and foot injuries or paralysis,and also provide a health care method for normal people to relieve foot muscle fatigue and promote blood circulation.The acupoint electrical stimulator based on STM32 has the advantages of being lightweight,easy to operate,safe and effective in stimulation,which has certain clinical value and can provide a reference for the development of future electrical stimulators.

关 键 词：电刺激仪 经皮穴位电刺激 STM32 康复治疗 

分 类 号：TH77[机械工程—仪器科学与技术] R318.6[机械工程—精密仪器及机械] TN911.7[医药卫生—生物医学工程]