摘要
本研究设计了一种多通道、多波形中低频电刺激仪。该电刺激仪通过调制模块和恒流源功率放大模块实现稳定输出电刺激,并由QT编写的上位机显示各通道、各波形参数、变压器隔离和电流反馈,保障人体安全。不同于常规电刺激仪的H桥电路生成脉冲,该电刺激仪使用双运放恒流源加功率放大电路作为电刺激输出。通过主控板STM32输出各通道信号,实现多波形的电刺激输出,并且实现对频率、电流幅值等参数的实时调节。初步的模拟电阻与人体实验表明,该电刺激仪刺激效果良好,对临床电刺激康复治疗具有一定意义。
We designed a multi-channel and multi-waveform medium and low frequency electrical stimulator.The stable output of electrical stimulation was realized through the modulation module and the constant current source power amplifier module.The upper computer compiled by QT displayed the waveform parameters of each channel,transformer isolation and current feedback to ensure human safety.Different from the H-bridge circuit of the conventional electrical stimulator to generate pulses,we used a double operational amplifier constant current source and a power amplifier circuit as the electrical stimulation output.The multi-waveform electrical stimulation output could be adjusted through the main control board STM32,and the real-time adjustment of various parameters such as frequency,current amplitude and so on could be realized.Preliminary simulated resistance and human experiments showed that the stimulation effect of the electric stimulator was good.It has a certain significance for clinical electrical stimulation rehabilitation therapy.
作者
吴义才
戴季高
曾俊炜
蒋丽媛
王玺羽
赵艳梅
邹任玲
徐秀林
胡秀枋
尹学志
WU Yicai;DAI Jigao;ZENG Junwei;JIANG Liyuan;WANG Xiyu;ZHAO Yanmei;ZOU Renling;XU Xiulin;HU Xiufang;YIN Xuezhi(School of Health Science and Engineering,University of Shanghai for Science and Technology,Shanghai 20093,China;Shanghai Berry Electronic Technology,Shanghai 201100)
出处
《生物医学工程研究》
2022年第2期194-199,共6页
Journal Of Biomedical Engineering Research
基金
上海市科技创新行动计划产学研医合作领域项目(21S31906000)
上海理工大学医工交叉项目(10-19-308-512)。
关键词
调制波
多波形
恒流源
多频率
实时
电流反馈
Modulated wave
Multi-waveform
Constant current source
Multi-frequency
Real-time
Current feedback
