The Meaning of the Point of Maximum Oscillations in Cuff Pressure in the Indirect Measurement of Blood Pressure—Part II

[+] Author and Article Information
G. W. Mauck, C. R. Smith

School of Mechanical Engineering, Purdue University, West Lafayette, Ind. 47907

L. A. Geddes, J. D. Bourland

Biomedical Engineering Center, Purdue University, West Lafayette, Ind. 47907

J Biomech Eng 102(1), 28-33 (Feb 01, 1980) (6 pages) doi:10.1115/1.3138195 History: Received April 01, 1978; Revised May 18, 1979; Online June 15, 2009


When measuring blood pressure indirectly, oscillations in the cuff pressure are observed. The cuff pressure for which these oscillations reach a maximum and its relationship to the true mean arterial pressure was investigated using a simple one-dimensional theoretical model of the cuff-arm-artery system. Results from this model indicate that the cuff pressure for maximal oscillation is strongly dependent on compression chamber air volume, pulse pressure, and arterial elasticity. Parallel experimental studies indicate general agreement with the theoretical model. The cuff pressure for maximal oscillations appears to provide a reasonable estimation of the true mean arterial pressure provided compression chamber air volume is kept small.

Copyright © 1980 by ASME
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