具有表面肌电反馈的功能性阵列电极电刺激系统设计  

Design of functional array electrode stimulation system with surface electromyography feedback

作　　者：尹琪敏 李晓欧 刘巧红[1] YIN Qimin;LI Xiaoou;LIU Qiaohong(College of Medical Instruments,Shanghai University of Medicine&Health Sciences,Shanghai 201318,P.R.China;College of Medical Instrument and Food Engineering,University of Shanghai for Science and Technology,Shanghai 200093,P.R.China)

机构地区：[1]上海健康医学院医疗器械学院,上海201318 [2]上海理工大学医疗器械与食品学院,上海200093

出　　处：《生物医学工程学杂志》2020年第6期1045-1055,共11页Journal of Biomedical Engineering

基　　金：国家自然科学基金项目(61801288);上海市卫健委卫生健康政策研究课题(2019HP71)。

摘　　要：为了解决现有电刺激系统刺激通道数过少和缺乏刺激效果反馈的问题,本文设计了一种带有表面肌电反馈的功能性阵列电极电刺激系统,通过体外实验和人体试验,首先验证了系统的有效性;然后证实了达到相同的刺激阶段所需刺激电流的安培数在个体间存在差异,且男性所需刺激电流的安培数一般大于女性;最后本文验证了如果达到相同的刺激阶段,使用方波刺激比使用微分波刺激所需刺激电流的安培数要小。本文设计的这一系统结合阵列电极和表面肌电反馈系统,提高了电刺激的准确性,实现了对电刺激过程中反馈的表面肌电信号的全程记录,并且电刺激参数可随着反馈的肌电信号变化而变化。电刺激系统与表面肌电反馈系统共同作用形成了一个闭环的电刺激工作系统,可达到提高电刺激康复治疗效率的目的。综上所述,本文开发设计的具有表面肌电反馈的功能性阵列电极电刺激系统操作简单、体积小、功耗低,为今后将电刺激康复治疗设备引入家庭奠定了基础,也可为今后开发同类型产品提供一定的借鉴和参考。In order to solve the problems of insufficient stimulation channels and lack of stimulation effect feedback in the current electrical stimulation system,a functional array electrode electrical stimulation system with surface electromyography(sEMG)feedback was designed in this paper.Firstly,the effectiveness of the system was verified through in vitro and human experiments.Then it was confirmed that there were differences in the number of amperage needed to achieve the same stimulation stage among individuals,and the number of amperage required by men was generally less than that of women.Finally,it was verified that the current required for square wave stimulation was smaller than that for differential wave stimulation if the same stimulation stage was reached.This system combined the array electrode and sEMG feedback to improve the accuracy of electrical stimulation and performed the whole process recording of feedback sEMG signal in the process of electrical stimulation,and the electrical stimulation parameters could change with the change of the sEMG signal.The electrical stimulation system and sEMG feedback worked together to form a closed-loop electrical stimulation working system,so as to improve the efficiency of electrical stimulation rehabilitation treatment.In conclusion,the functional array electrode electrical stimulation system with sEMG feedback developed in this paper has the advantages of simple operation,small size and low power consumption,which lays a foundation for the introduction of electrical stimulation rehabilitation treatment equipment into the family,and also provides certain reference for the development of similar products in the future.

关 键 词：电刺激 阵列电极 表面肌电信号 康复 

分 类 号：TH772[机械工程—仪器科学与技术]