DIFFERENTIAL PRESSURE ELECTRONIC PORTABLE SPIROMETER

A self-contained portable spirometer (10) includes a housing (12) and an air tube (16) with an orifice. Within the housing there is a transducer (44) and microprocessor-based circuitry for generating standard exhaled air measurements such as FEV1 and PFER. These measurements are displayed on a scree...

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Bibliographische Detailangaben
Hauptverfasser: EDELING, FREDERICK A, WATERSON, CHARLES K
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A self-contained portable spirometer (10) includes a housing (12) and an air tube (16) with an orifice. Within the housing there is a transducer (44) and microprocessor-based circuitry for generating standard exhaled air measurements such as FEV1 and PFER. These measurements are displayed on a screen (24) disposed on the housing.