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Related Experiment Videos

A new mouthpiece for the Wright peak flow meter.

J A Bushman, A Ali, I R Perry

    British Journal of Anaesthesia
    |June 1, 1978
    PubMed
    Summary

    The Wright peak flow meter is accurate, but mouthpiece design causes clinical variation. A new mouthpiece was developed to improve measurement consistency in clinical settings.

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    Area of Science:

    • Respiratory Medicine
    • Medical Device Engineering

    Background:

    • The Wright peak flow meter is a widely used device for measuring peak expiratory flow rate.
    • Variability in clinical measurements using the Wright peak flow meter has been attributed to the mouthpiece design.

    Purpose of the Study:

    • To evaluate the accuracy of the Wright peak flow meter.
    • To assess the impact of a newly designed mouthpiece on reducing measurement variability.

    Main Methods:

    • The Wright peak flow meter was tested against artificially produced peak flows.
    • Measurements were taken using both the standard and a newly designed mouthpiece.

    Main Results:

    • The Wright peak flow meter demonstrated accuracy when tested against artificial peak flows.
    • The new mouthpiece design significantly reduced the variation observed in clinical measurements.

    Conclusions:

    • The Wright peak flow meter is an accurate device for measuring peak expiratory flow.
    • The novel mouthpiece design effectively minimizes clinical measurement variability, enhancing its utility.

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