Surgery – Diagnostic testing – Cardiovascular
Patent
1997-06-03
1998-12-29
Kamm, William E.
Surgery
Diagnostic testing
Cardiovascular
600485, 600492, 600504, A61B 50205, A61B 5021, A61B 5022
Patent
active
058533710
ABSTRACT:
A system and method for evaluating the degree of elasticity of a subject's arteries includes an inflatable cuff that is wrapped around a portion of the living subject. A cuff pressure regulating circuit changes the constriction pressure applied by the inflatable cuff to the subject. A time-difference determining circuit determines a time difference between predetermined periodic points on an electrocardiographic waveform of the living subject and predetermined periodic points on corresponding pressure pulse waves of the living subject. An arterial elasticity evaluation circuit determines the degree of elasticity of the subject's arteries based on the relationship between changes in the time difference determined by the time-difference determining circuit and changes in the constriction pressure applied by the inflatable cuff.
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Inukai Hidekatsu
Sakai, deceased Hiroshi
Colin Corporation
Kamm William E.
Layno Carl H.
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