Effect of valve closure time on the determination of respiratory resistance by flow interruption

Bates, J.H.T., Hunter, I.W., Sly, P.D., Okubo, S., FiliatraultI, S. and MilicemiliI, J. (1987) Effect of valve closure time on the determination of respiratory resistance by flow interruption. Medical and Biological Engineering and Computing, 25 2: 136-140. doi:10.1007/BF02442841


Author Bates, J.H.T.
Hunter, I.W.
Sly, P.D.
Okubo, S.
FiliatraultI, S.
MilicemiliI, J.
Title Effect of valve closure time on the determination of respiratory resistance by flow interruption
Journal name Medical and Biological Engineering and Computing   Check publisher's open access policy
ISSN 0140-0118
1741-0444
Publication date 1987-03
Sub-type Article (original research)
DOI 10.1007/BF02442841
Volume 25
Issue 2
Start page 136
End page 140
Total pages 5
Place of publication Heidelberg, Germany
Publisher Springer
Language eng
Abstract The resistance of the respiratory system to flow may be conveniently assessed by the flow-interruption technique, in which the flow of gas at the mouth of a subject is suddenly interrupted while the pressure just distal to the point of interruption is recorded. There is a rapid change in pressure immediately upon interruption, presumably giving the resistive pressure drop across the pulmonary airways. This is followed by a further slow change in pressure reflecting stress relaxation in the respiratory system and possibly gas redistribution between different regions of the lung. The diagnostic potential of the post-occlusion pressure signal is dependent on the airway opening being occluded effectively instantaneously. We present a description of an occlusion valve we have designed and built for performing rapid airway occlusions. We are able to measure the closing characteristics of our valve precisely.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Medicine Publications
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 110 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 78 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Wed, 17 Nov 2010, 11:17:01 EST