Measurement of arterial elasticity and the frequency characteristic of the compliance of an artery
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United States of America Patent
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Jan 10, 1995
Issued Date -
N/A
app pub date -
Mar 25, 1994
filing date -
Oct 23, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus for measuring arterial elasticity includes a cuff member having a light source and light detector, a variable pressure generating device, a fluid pressure sensor, a digital signal processor and a difference detecting element. The fluid pressure in a fluid pressure chamber in the cuff member is varied by a variable fluid pressure generating device. The digital signal processor responds to the output of the fluid pressure sensor and the output of the difference detecting element and delivers a digitally processed signal corresponding to an arterial volume change based on a simulated arterial elasticity. The arterial elasticity and the frequency characteristic thereof are derived based on the operation of the digital signal processor.
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