摘要
目的:智能化呼吸机是目前医用呼吸机研究的重要方向,对呼吸机提高通气治疗效果,改善病人通气舒适度有着举足轻重的作用,本文提出一种基于嵌入式操作系统的智能化呼吸机呼吸控制硬件平台,为智能化呼吸机呼吸控制算法搭建提供硬件支持。方法:采用双控制器的结构,PIC单片机控制器采集呼吸机通气回路的压力、流量、氧传感器信号,驱动呼吸回路气道控制组件、实现呼吸机各功能组件的实时控制;嵌入式ARM主板控制器搭载Linux操作系统和控制软件接收单片机的呼吸参数以及血气参数监测模块的数据、绘制实时的呼吸参数波形、提供便捷的人机交互控制界面。结果:运用该智能化呼吸控制平台实现了呼吸机的基本通气模式以及触发方式,通过Linux系统上设计的呼吸波形监控界面与FLUKE VT PLUS HF呼吸机检测仪进行呼吸参数及波形比对,验证了平台的可靠性和数据的准确性。结论:该平台能很好地为呼吸机的智能化控制提供硬件支持,采集数据准确,经调试运行可靠,有良好的应用前景。
Objective： The smart ventilator is an important direction for medical ventilator research, it plays an decisive role in improving the effectiveness and comfortability of ventilating treatment. This paper proposes the research on controlling platform of smart ventilator based on an embedded system, which can provide hardware support for further controlling algorithm of smart ventilator. Methods： With double structure of the controller, PIC microchip controller is adopted to collect sensor signal and ful- fill the real-time controlling of ventilator. The embedded main board with Linux and controlling software communicate with PIC Controller to exchange breathing and gas parameter, draw the real-time breath parameter waveform so as to provide a conve-nient GUI interface for human-computer interaction. Results： Ventilating mode and trigger mode are realized by using the plat- form, the reliability of the platform and the accuracy of the data are verified by comparing respiratory parameters and waveforms between the respiratory waveform monitoring interface designed on Linux system and FLUKE VT PLUS HF gas-flow detector. Conclusions： The test result shows this controlling platform can realize the functions of a smart ventilator and has good application perspective.
出处
《中国医学物理学杂志》
CSCD
2014年第4期5048-5053,共6页
Chinese Journal of Medical Physics
基金
上海市科委重点科技攻关项目(11441902302)
关键词
智能化呼吸机
嵌入式控制系统
PIC单片机
血气参数
smart ventilator
embedded control system
PIC microchip
blood and breathing parameter
