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The ejector flowmeter as air/oxygen mixing device. An apparatus providing gas mixtures with adjustable oxygen content
Acta Anaesthesiologica Scandinavica
|April 1, 1980
Abstract:
The ejector flowmeter is constructed for continuous removal of excess gas from anaesthetic circuits. This instrument can be used as an air/oxygen mixing device for high-flow humidification systems in wards where compressed air is not available. Pure oxygen is used as driving gas through the ejector. A nomogram has been constructed to show the relationship between oxygen driving pressure, inlet of air to the flowmeter, FIO2 and total outflow.