Pocket-sized device for measuring forced expiratory volume in one second and forced vital capacity.
作者： P J Chowienczyk , C P Lawson
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摘要: An inexpensive pocket-sized instrument--the turbine spirometer--has been developed that measures and gives a direct digital display of the forced expiratory volume in one second vital capacity. The instrument is as accurate considerably cheaper than spirometers general use. Condensation does not affect calibration. spirometer will enable spirometry to be easily monitored hospital wards practice by patients at home.
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