基于C8051F020的电疗及疼痛评估系统的初步研究

发布时间：2018-07-01 08:52

本文选题：C8051F020 + 中低频治疗　；参考：《重庆大学》2013年硕士论文

【摘要】：肩颈周围炎是常见的疼痛性疾病，近年来其发病率越来越高并呈低龄化的发展趋势，因此对肩颈周围炎的预防、规范化治疗以及疗效评估就变得非常重要。针对目前电疗设备存在治疗手段单一、治疗与评估设计分离等问题，研制了一种集中低频治疗和疼痛评估为一体的系统。该系统以C8051F020单片机为核心，结合中频和低频电刺激的优点以及压痛阈值用于疼痛评估的优势，通过电路设计和软件编程，产生刺激效果不同的波形，实现了治疗参数的随意切换，克服治疗时机体的适应性，增加了疗效；压痛阈值的精确采集和显示能够实现电刺激治疗前后压痛阈值的对比，用于疼痛评估从而选择适当的治疗模式。论文首先阐述了中低频电流的镇痛机理以及疼痛评估常采用的方法。然后通过对刺激波的波形、波宽、频率、强度等的分析确定了系统的设计指标参数。接着从电疗及疼痛评估系统的硬件设计和软件设计方面进行了详细的介绍。在系统硬件方面，主要由C8051F020控制电路、电源电路、Boost升压电路、中频刺激电路、低频刺激电路、压控双向恒流电路、疼痛阈值采集电路、液晶显示电路、按键电路等组成。在软件系统方面，程序采用C语言编写，开发环境为Keil uVision4，，主要功能有：刺激波形的产生、接收按键输入和参数显示、压痛值的采集、转换、处理、动态显示。实验结果表明，系统评估部分实测值与标称值之间最大误差为0.294N；系统输出的刺激波的波形、波宽、频率、电流强度等参数可调且达到了预期要求。该系统能为临床治疗和疼痛评估提供了良好的技术支持。
[Abstract]:Shoulder and neck periarthritis is a common painful disease. In recent years, the incidence of shoulder and neck periarthritis is becoming more and more high and the trend of younger age. Therefore, it is very important to prevent, standardize treatment and evaluate the curative effect of shoulder and neck periarthritis. Aiming at the problems of single treatment method and separation of treatment and evaluation design, a system of low frequency treatment and pain assessment is developed. The system takes C8051F020 as the core, combines the advantages of middle frequency and low frequency electric stimulation and the advantage of tenderness threshold for pain evaluation. Through circuit design and software programming, the waveform with different stimulation effect is produced. The optional switching of the treatment parameters, overcoming the adaptability of the treatment timing body and increasing the curative effect, the accurate collection and display of the tenderness threshold can realize the comparison of the tenderness threshold before and after the electric stimulation treatment. For pain assessment to select the appropriate treatment mode. In this paper, the analgesic mechanism of middle and low frequency current and the common methods of pain evaluation are described. Then the design parameters of the system are determined by analyzing the waveform, wave width, frequency and intensity of the stimulus wave. Then the hardware design and software design of electrotherapy and pain assessment system are introduced in detail. In terms of system hardware, it is mainly composed of C8051F020 control circuit, power supply circuit boost circuit, if stimulation circuit, low frequency stimulation circuit, voltage control bidirectional constant current circuit, pain threshold acquisition circuit, LCD display circuit, key circuit and so on. In the software system, the program is written in C language, and the development environment is Keil uVision4. The main functions are: generating the stimulus waveform, receiving key-press input and parameter display, collecting, converting, processing and displaying the tenderness value. The experimental results show that the maximum error between the measured value and the nominal value of the system is 0.294N, and the parameters such as waveform, wave width, frequency and current intensity of the system output can be adjusted and meet the expected requirements. The system can provide good technical support for clinical treatment and pain assessment.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：R318.6

【相似文献】