Author : Dr.Archana.N.V 1
Date of Publication :7th May 2016
Abstract: The present blood pressure (BP) measurement devices are mostly built on the principle of auscultation, oscillometry or tonometry, all of which use an inflatable cuff. This paper aims to develop a cuff-less and continuous technique for measuring BP by pulse transit time (PTT). PTT will be measured as the time interval from the peak of R wave of Electrocardiogram (ECG) to a characteristic point at predetermined thresholds on the Photoplethysmogram (PPG) of the same cardiac cycle. Simultaneous recording of ECG and PPG shall be acquired from fingertips of the subject by stainless steel electrodes and a pair of light emitting diode and photo detector is used to estimate the PTT.A multiple regression model which could estimate unspecified people’s blood pressure (BP) conveniently & continuously is proposed.
Reference :
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