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. 2020 Dec 25;37(6):1045-1055.
doi: 10.7507/1001-5515.201910007.

[Design of functional array electrode stimulation system with surface electromyography feedback]

[Article in Chinese]
Qimin Yin  1 , Xiaoou Li  1 , Qiaohong Liu  2
Affiliations

[Design of functional array electrode stimulation system with surface electromyography feedback]

[Article in Chinese]
Qimin Yin et al. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. .

Abstract
in English, Chinese

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.

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。.

Keywords: array electrode; electrical stimulation; rehabilitation; surface electromyography.

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Conflict of interest statement

利益冲突声明：本文全体作者均声明不存在利益冲突。

Figures

图 1
图 1
Flow chart of electrical stimulation system 电刺激系统流程图
图 2
图 2
sEMG signal acquisition equipment sEMG 信号采集设备
图 3
图 3
sEMG signal acquisition flow chart sEMG 信号采集流程图
图 4
图 4
Model diagram of bipolar electrical stimulation switching circuit 双极性电刺激切换电路模型图
图 5
图 5
Array electrode diagram 阵列电极图
图 6
图 6
Schematic diagram of array electrode gating 阵列电极选通示意图
图 7
图 7
Stimulator programming flow chart 刺激器程序设计流程图
图 8
图 8
Flow chart of stimulus signal data transmission 刺激信号数据传输流程图
图 9
图 9
Host computer control interface 上位机控制界面
图 10
图 10
Comparison of mean currents required for men and women to reach the same stimulation stage 男性和女性达到相同刺激阶段所需均值电流对比图
图 11
图 11
Comparison of mean currents required for men and women to use different waveforms to achieve the same stimulation stage 男性和女性使用不同波形刺激达到相同刺激阶段所需均值电流对比图
See this image and copyright information in PMC

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