Elastic Properties of Collapsing and Expanding Trachea

[+] Author and Article Information
D. C. Winter

Southwest Research Institute, San Antonio, Tex. 78284

J Biomech Eng 107(4), 300-303 (Nov 01, 1985) (4 pages) doi:10.1115/1.3138559 History: Received July 04, 1984; Revised June 03, 1985; Online June 15, 2009


The compliance of the canine trachea under positive and negative transmural pressures was measured in an in-vivo preparation. The average compliance values found in eight animals were 11.7×10−6 (dynes/cm2 )−1 at zero transmural pressure and 4.9 and 6.9×10−6 (dynes/cm2 )−1 at −20 and +20×103 dynes/cm2 transmural pressure, respectively. These compliances were significantly lower than those measured by others in excised preparations. Stress relaxation was noted at all pressure levels.

Copyright © 1985 by ASME
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