NON-INVASIVE BLOOD PRESSURE MEASUREMENTS: SEPARATION OF THE ARTERIAL PRESSURE OSCILLOMETRIC WAVEFORM FROM THE DEFLATION USING DIGITAL FILTERING

Abstract

We have applied the Fourier analysis and digital filtering of non-invasive blood pressure data to separate the cuff deflation from the arterial pressure pulses and to extract the Korotkoff sounds from a re- sponse of microphone implanted in the cuff. We have also found that oscillometric pulses can be estimated from the microphone data.