A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 5/00 (2006.01) A61B 5/02 (2006.01) A61B 5/14 (1995.01)
Patent
CA 2250331
A heart rate value determined from a first physiological signal that is acquiredindependently from a second physiological signal, is used to control a band pass filter for controllably bandpass filtering the second physiological signal. In a system having sensors for independently acquiring both electrocardiogram (ECG) and pulse oximetry (SpO2) signals, a heart rate value determined from the ECG signal is used to controllably bandpass filter the red and infrared SpO2 signals, thereby reducing the level of artifact signal in the SpO2 signals.
Une valeur de rythme cardiaque, qui est déterminée au moyen d'un premier signal physiologique obtenu indépendamment d'un second signal physiologique, est employée pour contrôler un filtre passe-bande destiné au filtrage contrôlé du second signal physiologique. Dans un système comportant des capteurs destinés à enregistrer indépendamment des signaux d'électrocardiogramme (ECG) et d'oxymétrie pulsée (SpO2), on emploie une valeur de rythme cardiaque déterminée à l'aide du signal EGG, pour le filtrage passe-bande contrôlé des signaux SpO2 pour la lumière rouge et pour l'infrarouge, réduisant ainsi le niveau de signaux parasites dans les signaux SpO2.
Elghazzawi Ziad
Draeger Medical Systems Inc.
Fetherstonhaugh & Co.
Siemens Medical Systems Inc.
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