咀嚼肌多通道表面肌电信号数据采集和分析系统的研制与临床初步应用  

Data Collection of Signals in the Multi-channel sEMG System of Masticatory Muscles and Development and Preliminary Clinical Application of an Analytic System

作　　者：杜洪亮[1] 李欣[1] 李珊[1] 张瑞[1] 宋容[1] 李岚[2] 王炜[2] 康宏[1] 

机构地区：[1]兰州大学口腔医学院口腔医学研究所,兰州730000 [2]兰州大学信息工程学院生物工程研究所,兰州730000

出　　处：《生物医学工程学杂志》2014年第1期23-28,共6页Journal of Biomedical Engineering

基　　金：中央高校基本科研业务费专项基金资助项目(lzujbky-2011-97)

摘　　要：研制一种简单经济基于高共模抑制比、前置放大的咀嚼肌多通道表面肌电(sEMG)信号采集和分析系统。并探讨其在颞下颌关节紊乱病(TMD)中的应用价值。系统的设计借助windows操作系统和图形化界面,利用USB接口技术,采集和管理患者的资料及肌电数据,分别记录8例正常受试和8例TMD患者下颌姿势位、牙尖交错位和叩齿运动时双侧颞肌前束、咬肌的肌电活性,通过时域分析、双谱分析、短时傅里叶变换、小波变换等分析软件对信号进行图像化对比分析。实验结果表明该系统是一种简单经济、合理的系统。TMD患者sEMG信号发生明显的改变。该系统有助于临床诊断TMD及治疗后的评估,并为诊断和治疗口颌系统疾病以及功能重建提供客观的检测手段。The aim of this study was to design a simple, economic, with high Common Mode Rejection Ratio （CM- RR）, preamplifier and multi-channel masticatory muscle surface electromyography （sEMG） signal acquisition system assisting to diagnose temporomandibular disorders （TMD）. We used the USB interface technology in the EMG data with the aid of the windows to operate system and graphical interface. Eight patients with TMD and eight controls were analyzed separately using this system. In this system, we analyzed sEMG by an optional combination of time domain, frequency domain, time-frequency, several spectral analysis, wavelets and other special algorithms under multi-parameter. Multi-channel sEMG System of Masticatory Muscles is a simple, economic system. It has high sensitivity and specificity. The sEMG signals were changed in patients with TMD. The system would pave the way for diagnosis TMD and help us to assess the treatment effect. A novel and objective method is provided for diagnosis and treatment of oral-maxillofacial disease and functional reconstruction.

关 键 词：咀嚼肌 表面肌电 颞下颌关节紊乱病 信号分析 

分 类 号：R782.6[医药卫生—口腔医学]