Design and Verification of a COPD Screening Equipment Based on Dual-differential Pressure Throttling Technique / 中国医疗器械杂志
Chinese Journal of Medical Instrumentation
; (6): 263-265, 2019.
Article
Dans Zh
| WPRIM
| ID: wpr-772511
Responsable en Bibliothèque :
WPRO
ABSTRACT
This study was to design a chronic obstructive pulmonary disease (COPD) screening equipment, based on the dual-differential pressure throttling technique. The technique combined a wide range, but low-resolution ratio sensor and a narrow range, but high-resolution ratio one. It can accurately detect the indexes of forced vital capacity (FVC), forced expiratory volume in one second (FEV), one second rate(FEV/FVC (%)), and achieve them in a low-cost way. The new designed machine will be compared with a British machine, named ML-3500. The correlations of FVC and FEV between new machine and ML-3500 were 0.998 and 0.999, respectively. The P values of paired test of these two indexes were over 0.05. Bland-Altman analysis of FVC, FEV and FEV/FVC (%) showed that more than 90% of the scatter points of the three parameters fell within the consistency interval. This machine can be used to accurately screen COPD and its low-cost would be advantage to promote in large population.
Texte intégral:
1
Indice:
WPRIM
Sujet Principal:
Tests de la fonction respiratoire
/
Volume courant
/
Capacité vitale
/
Volume expiratoire maximal par seconde
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Reproductibilité des résultats
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Broncho-pneumopathie chronique obstructive
/
Diagnostic
/
Économie
Type d'étude:
Diagnostic_studies
/
Health_economic_evaluation
/
Screening_studies
Limites du sujet:
Humans
langue:
Zh
Texte intégral:
Chinese Journal of Medical Instrumentation
Année:
2019
Type:
Article