一种面向上肢康复的便携式电刺激器设计

为满足不同人群的需求,设计了一种多参数连续可调的便携式电刺激器。下位机采用STM32F103C8T6作为主控芯片,设计图腾柱式升压模块和全桥控制模块输出刺激脉冲,同时板载硬件保护电路最大程度地确保人体安全。上位机采用IPS串口屏开发了人机交互界面,可以通过串口命令对刺激器输出的幅值、脉宽、频率进行连续调节。实验结果表明,刺激器恒压性能良好,能够准确输出目标波形。该仪器操作简单,便携性好,在家庭以及社区有一定的推广价值。

Design of Portable Electric Stimulator for Upper Limb Rehabilitation

In order to meet the demands of different groups of people,a multi-parameter continuously adjustable portable electrical stimulator was designed.The slave computer used STM32F103C8T6 as the main control chip.The totem-pole boost module and the full-bridge control module which outputs the stimulation pulse were designed.At the same time,the hardware protection circuit onboard ensures the safety of users to the maximum extent.The host computer used the IPS serial port screen to develop a human-computer interaction interface,which can continuously adjust the amplitude,pulse width and frequency of the stimulator through the serial port command.The experimental results show that the stimulator has a good constant voltage performance and can generate the target waveform accurately.The stimulator is simple to operate,portable,and has a certain value in family and community promotion.