Assessment of a new transtelephonic portable spirometer

Area of Science:

• Pulmonary Function Testing
• Medical Device Technology
• Telemedicine

Background:

• A new portable spirometer, the Spirophone, has been developed.
• It records patient's expiratory data and transmits it via telephone for remote analysis.
• Its accuracy and reliability were evaluated.

Purpose of the Study:

• To determine the accuracy and reliability of the Spirophone device.
• To assess its performance in recording maximal forced expiratory manoeuvres.
• To evaluate its potential for remote patient lung function monitoring.

Main Methods:

• Performance testing using computer-generated waveforms.
• Calibration with syringes delivering known flows.
• Comparison with a commercial spirometer for subject blow measurements.

Main Results:

• Lung function indices accurate to within 1% with computer-generated waveforms.
• Accuracy within 5% for blows from calibrated syringes.
• Spirophone and commercial spirometer showed no significant differences in repeated FVC manoeuvres.

Conclusions:

• The Spirophone demonstrates acceptable accuracy, reliability, and reproducibility for maximal forced expiratory manoeuvres.
• This system facilitates remote monitoring of patient lung function.
• It offers a valuable tool for managing respiratory conditions from a distance.