Title :
The laryngeal channel as a variable venturi-meter
Author :
Renotte, Ch. ; Remy, M. ; Saucez, Ph.
Author_Institution :
Faculte Polytech. de Mons, Belgium
fDate :
31 Oct-3 Nov 1996
Abstract :
A model of the larynx, based on the analogy between the laryngeal channel and a constriction in a pipe, was developed by integrating the actual movements of the vocal cords during the quiet respiratory cycle. The model allows one to simulate and explain (1) the shape (tilted 8 with counterclockwise sign and cycle aperture) of the upper airway pressure-flow diagram, (2) the asymmetry between inspiratory and expiratory phases and (3) the variation of upper airway resistance with gas mixture
Keywords :
physiological models; pneumodynamics; counterclockwise sign; cycle aperture; expiratory phase; gas mixture; inspiratory phase; laryngeal channel; larynx model; quiet respiratory cycle; tilted 8; upper airway pressure-flow diagram; upper airway resistance variation; variable venturi-meter; vocal cords movements; Apertures; Equations; Fluid flow; Geometry; Larynx; Mouth; Orifices; Pharynx; Shape; Viscosity;
Conference_Titel :
Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-3811-1
DOI :
10.1109/IEMBS.1996.647612
