医用空气压缩机智能化气源切换装置的加装

Installation of Intelligentized Gas Switching Device of The Medical Air Compressor

目的对配置于SMART呼吸机上的医用空气压缩机进行改进,使呼吸机具备中心供气和空气压缩机供气自动选择、自动切换功能。方法在空气压缩机的气路中加装传感器、控制阀等设备,使用C语言编程,利用呼吸机的单片机对切换装置进行控制。结果当中心供气设备发生故障导致供气压力低于下限时,呼吸机可以在报警的同时自动切换至空气压缩机供气,当中心供气压力恢复正常后,呼吸机又能够智能切换回中心供气。结论加装气源切换装置提升了呼吸机的智能化程度,避免了呼吸机由于气源因素导致的工作异常。

Objective To add the functions of automatic selection,automatic switching to ventilator by improving medical air compressor installed in SMART ventilator.Methods Installed sensors control equipment,etc,in the gas circuit of air compressor programmed with C language,controlled switching device by ventilator MCU.Results When central gas supply instrument broke down and caused supply pressure decrease below the lower limit,ventilator can automatically switch to air compressor supply at the same time in alarm;when pressure of central gas supply returning to normal,ventilator can intelligently switch back to central gas supply.Conclusions The installation of air switching device increases the intelligence of ventilator,and avoids ventilator abnormal phenomenon caused by air factors.