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An electronic peak flow meter with optional coded display.

R B Richardson, C M Higgs, D A Lea

    Clinical Physics and Physiological Measurement : an Official Journal of the Hospital Physicists' Association, Deutsche Gesellschaft Fur Medizinische Physik and the European Federation of Organisations for Medical Physics
    |August 1, 1984
    PubMed
    Summary
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    A new portable electronic spirometer accurately measures peak expiratory flow rate in asthma patients. This device, utilizing a turbine flow transducer and a patient-blind coding system, aids in studying asthma perception.

    Area of Science:

    • Respiratory Medicine
    • Biomedical Engineering
    • Medical Instrumentation

    Background:

    • Asthma management requires accurate monitoring of respiratory function.
    • Peak expiratory flow rate (PEFR) is a key metric for assessing asthma control.
    • Existing spirometry devices may lack portability or patient-blinding capabilities.

    Purpose of the Study:

    • To develop and evaluate a portable electronic spirometer for measuring PEFR.
    • To implement a coding system for patient-blind results.
    • To assess the utility of the device in investigating patients' perception of their asthma.

    Main Methods:

    • Development of a portable electronic spirometer incorporating a turbine flow transducer.
    • The transducer generates a pulsed output frequency proportional to airflow.

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  • Implementation of a coding system to ensure patient-blind data collection.

    • Main Results:

    • The developed spirometer successfully measured peak expiratory flow rate.
    • The turbine flow transducer provided an accurate, flow-proportional output.
    • The patient-blind coding system was effective and suitable for similar electronic instruments.

    Conclusions:

    • A portable electronic spirometer for PEFR measurement has been successfully developed.
    • The device and its coding system are valuable tools for asthma research.
    • The spirometer facilitates the investigation of patient perception in asthma studies.