대한기계학회:학술대회논문집 (Proceedings of the KSME Conference)
- 대한기계학회 2007년도 춘계학술대회A
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- Pages.1037-1044
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- 2007
IDENTIFICATION OF AIRWAY CHARACTERISTICS USING THE INPUT IMPEDANCE
- Tung, V.X. (Biomedical Engineering Centre (BioMEC)Auckland University of Technology) ;
- Jumaily, Al (Biomedical Engineering Centre (BioMEC)Auckland University of Technology) ;
- Cheng, S.H. (School of Mechanical Engineering Kumoh National Institute of Technology) ;
- Ro, S.H. (School of Mechanical Engineering Kumoh National Institute of Technology)
- 발행 : 2007.05.30
초록
In an attempt to determine the correlations between the input acoustic impedance and the variations of the physical characteristics of the terminal elements, a five-lobe branched tube-network is mathematically developed and experimentally simulated using a lung simulator. The model takes into account some realistic conditions such as varying cross-sectional areas, flexible wall properties and branching. The effects of airway constrictions expressed by lobe stiffness variations on the impedance are determined for a range of frequencies up to 256 Hz. It is concluded that the developed model is capable of non-invasively predicting various physiological changes in the airway passages.
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