摘要
本项目应用于肢体瘫痪或功能衰退的人群,电刺激器通过小电流刺激患者肢体引起肌肉收缩,从而使肢体产生动作。系统以STM32F407单片机为主控芯片,产生脉宽、频率可调的单相波形,经过光耦多路开关组合成双相波形,然后进行波形放大,且幅值可调,再经过电极刺激肢体,使肢体产生预先设定的相应动作。系统以6节干电池供电,器件选用小功率贴片元件,通过升压电源负载功率验证了系统各模块能稳定工作,从而实现一种功耗低、体积小、便携式的刺激器。
This project is applied to paralysis or declining population, through a small current electrical stimulator to stimulate the patient ＋ sbody which causes muscle contraction,so that the body can produce action. STM32F407 microcontroller is used as system5 s core,producing single-phase pulse width and frequency adjustable waveform. Then through the multi-channel switch which forms bipolar waveform,waveform can be amplified,and the amplitude can be adjusted. Through electrodes it stimulates the body, making the body produce the correspondingaction set in advance. The system is powered by 6 batteries. The components use small power chips. By DC-DC power ＋ s load power, it is verified that each module of the system can work stably,so as to achieve a low power consumption, small volume, and portable stimulator.
出处
《微型机与应用》
2017年第16期26-29,共4页
Microcomputer & Its Applications
基金
国家自然科学基金(61550110252)
上海市科委创新行动计划(1444190030)
