上肢康复运动的肌肉电信号采集系统

Muscle Electrical Signal Acquisition System for Upper Limb Rehabilitation

基于脑卒中患者肩部出现不同程度的运动功能障碍,设计上肢康复运动的肌肉电信号采集系统。首先,利用表贴式方法采集八通道的表面肌肉电信号:然后,通过前置电路放大肌肉电信号,并利用右腿驱动技术降低共模;接着,通过低通和高通滤波,进行工频陷波:最后,进行后级放大。实验结果表明:该系统采集肌肉电信号准确率达82%。

Based on the different degree of motor dysfunction in the shoulder of stroke patients,a muscle electrical signal acquisition system for rehabilitation of upper limb was designed.Firstly,the surface muscle electrical signals of eight channels were collected by means of the meter stick method.Then through the front circuit for amplification,and using the right leg drive technology to reduce the role of common mode;Then through low-pass and high-pass filtering,power frequency notch wave;Finally,the rear stage is enlarged.The experimental results showed that the accuracy of the system was 82%.