A Fiber Bragg Grating Sensor-based Wearable System to Detect the Pre-dicrotic and Dicrotic Notch in the Arterial Pulse Pressure Waveform

The dicrotic notch is an important feature in the arterial pressure waveform that marks the end of the ventricular ejection. Reliable detection of this notch in the pulse waveform is of interest in the investigation of cardiovascular disorders. It also provides insights into haemodynamic complexitie...

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Bibliographic Details
Main Authors: Jha, Chandan Kumar, Sinha, Oindrila, Chakraborty, Arup Lal
Format: Conference Proceeding
Language:English
Subjects:
dicrotic notch
FBG
fiber Bragg grating
pulse monitoring
pulse waveform
strain sensor
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Summary:The dicrotic notch is an important feature in the arterial pressure waveform that marks the end of the ventricular ejection. Reliable detection of this notch in the pulse waveform is of interest in the investigation of cardiovascular disorders. It also provides insights into haemodynamic complexities of critical patients. We demonstrate a fiber Bragg grating (FBG) sensor-based arterial pulse signal recording system that precisely detects the dicrotic notch as well as the pre-dicrotic notch. The notches were clearly visible on the pulse waveform recorded from four different subjects. The sensor is sensitive enough to pick up the pulse signals even when it was attached as far as 10 cm from the wrist joint. FBG sensors being lightweight and immune to electromagnetic interference, are ideally suited for use in hospital settings. The complete system can readily be made compact, battery-powered, and wearable.
ISSN:2325-9418
DOI:10.1109/INDICON47234.2019.9030334