Installation of intelligentized gas switching device of the medical air compressor / 中国医疗器械杂志

ABSTRACT

<p><b>OBJECTIVE</b>To add the functions of automatic selection, automatic switching to ventilator by improving medical air compressor installed in SMART ventilator.</p><p><b>METHODS</b>Installed sensors control equipment, etc., in the gas circuit of air compressor programmed with C language, controlled switching device by ventilator MCU.</p><p><b>RESULTS</b>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.</p><p><b>CONCLUSIONS</b>The installation of air switching device increases the intelligence of ventilator, and avoids ventilator abnormal phenomenon caused by air factors.</p>