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Design and Verification of Lung Diffusion Function Detection System / 中国医疗器械杂志
Chinese Journal of Medical Instrumentation ; (6): 408-412, 2022.
Article in Chinese | WPRIM | ID: wpr-939757
ABSTRACT
A lung diffusion function detection system is designed. Firstly, the controllable collection of air, test gas source and calibration gas source was based on single-breath method measurement principle. Secondly, pulmonary diffusing capacity for carbon monoxide (DlCO) was calculated by gas concentration measured by the non-dispersive infrared sensor to measure, the gas flow measured by the differential pressure sensor, and the temperature, humidity and atmospheric pressure sensors to test and evaluate the quantitative detection and evaluation of lung diffusion function. Moreover, a preliminary verification of the lung diffusion function detection system was implemented, and the results showed that the error of the lung carbon monoxide diffusion and the alveolar volume did not exceed 5%. Therefore, the system has high accuracy and is of great value for early screening and accurate assessment of COPD.
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Full text: Available Index: WPRIM (Western Pacific) Main subject: Carbon Monoxide / Pulmonary Diffusing Capacity / Lung Type of study: Diagnostic study Language: Chinese Journal: Chinese Journal of Medical Instrumentation Year: 2022 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Carbon Monoxide / Pulmonary Diffusing Capacity / Lung Type of study: Diagnostic study Language: Chinese Journal: Chinese Journal of Medical Instrumentation Year: 2022 Type: Article