基于双轴角度传感器的足下垂功能电刺激系统  

An FES System Based on Dual Axis Inclinometer in Foot Drop Treatment

作　　者：朱勇[1] 商云晶[1] 宋佳[1] 邱天爽[1] 

机构地区：[1]大连理工大学生物医学工程系,大连116024

出　　处：《生物医学工程学杂志》2013年第2期387-394,共8页Journal of Biomedical Engineering

基　　金：国家科技支撑计划项目资助(2012BAJ18B06);辽宁省大连市科学技术计划项目资助(2011E12SF032)

摘　　要：利用各种传感器构成的功能电刺激(FES)系统被广泛应用于纠正足下垂疾患中。然而目前的系统仅局限于行走过程的研究而忽略了日常生活中经常出现的如上下楼梯、蹲、坐、躺和卧等动作。本文首次将双轴角度传感器用于足下垂FES系统中。使用双轴角度传感器后不仅可以在正常行走时完成刺激,而且能识别日常蹲、坐、躺和卧等动作,在检测出这些动作时自动关闭刺激系统,同时还可以检测跌倒等危险动作。在本文设计的检测试验中,在正常行走、坐-站、上楼梯、下楼梯和蹲-站等日常动作中,检测成功率分别达到100%、81.9%、95.8%、99.0%和66.9%。The foot drop functional electrical stimulation （FES） system consisting of various sensors has been widely applied to the disease of the foot drop. However, the current system is limited to the research on walking on the ground and ignores other important actions of foot in one＇s daily life, such as walking up and down the stairs, squat- ting and lying down, etc. In this work, we applied the dual axis angle sensor to the system of the foot drop FES for the first time. Such a system can not only stimulate the foot drop during normal walking, but also identify squatting, sitting, and lying down etc. and furthermore, the system can switch off automatically. In the meanwhile, it can also detect falls and other dangerous actions. The accuracy of our system can achieve 100%, 81.9%, 95.8%, 99.0% and 66.9% for normal walking, sitting-standing, walking up the stairs, walking down the stairs and squatting- standing respectively.

关 键 词：足下垂 双轴角度传感器 腓总神经 功能电刺激 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] R318.6[自动化与计算机技术—控制科学与工程]