System and method for blood pressure estimation
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United States of America Patent
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Sep 5, 2017
Grant Date -
Jun 16, 2016
app pub date -
Dec 15, 2015
filing date -
Dec 15, 2014
priority date (Note) -
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Abstract
An electronic system for estimating a subject's blood pressure, comprising a feature extraction module configured for receiving a subject's photoplethysmogram signal, detecting a plurality of signal characteristic points on the received photoplethysmogram signal, calculating a plurality of distances in both time and amplitude between any two of the detected photoplethysmogram signal characteristic points, and providing a feature information signal comprising information about the calculated distances; and a blood pressure calculation module configured for receiving the photoplethysmogram signal, the feature information signal and anthropometric characteristics of the subject, and calculating systolic, diastolic and continuous mean blood pressure values of the subject.
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