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1. (WO2018127443) DEVICE, SYSTEM AND METHOD FOR DETERMINING PULSE PRESSURE VARIATION OF A SUBJECT

Pub. No.:    WO/2018/127443    International Application No.:    PCT/EP2017/084595
Publication Date: Fri Jul 13 01:59:59 CEST 2018 International Filing Date: Thu Dec 28 00:59:59 CET 2017
IPC: A61B 5/021
A61B 5/0295
A61B 5/00
A61B 5/024
Applicants: KONINKLIJKE PHILIPS N.V.
Inventors: SUN, Shaoxiong
PEETERS, Wouter, Herman
BEZEMER, Rick
Title: DEVICE, SYSTEM AND METHOD FOR DETERMINING PULSE PRESSURE VARIATION OF A SUBJECT
Abstract:
The present invention relates to a device, system and method for determining pulse pressure variation of a subject. To enable more reliably determining pulse pressure variation of a subject the device comprises a signal input (11) configured to obtain an input signal representing a hemodynamic signal of the subject, a processor (12) configured to process the input signal and compute a pulse pressure variation and a signal output (13) configured to output the computed pulse pressure variation. The pulse pressure variation is computed by deriving a pulse height signal from the input signal, deriving a pulse height baseline and a de-trended pulse height signal from the pulse height signal as the ratio between the difference between extrema of the de-trended pulse height signal and the respective value of the pulse height baseline signal, and computing the pulse pressure variation from the de-trended pulse height signal and the pulse height baseline.