Selection of ensemble averaging weights for a pulse oximeter...

Details Selection of ensemble averaging weights for a pulse oximeter... Selection of ensemble averaging weights for a pulse oximeter...

A - Human Necessities

61

B

A61B 5/00 (2006.01)

Patent

CA 2557240

A method and a system for ensemble averaging signals in a pulse oximeter, including receiving first and second electromagnetic radiation signals from a blood perfused tissue portion corresponding to two different wavelengths of light, obtaining an assessment of the signal quality of the electromagnetic signals, selecting weights for an ensemble averager using the assessment of signal quality, and ensemble averaging the electromagnetic signals using the ensemble averager.

L'invention concerne un procédé et un système de signaux de moyennage d'ensembles dans un sphygmo-oxymètre. Ce procédé consiste à: recevoir des premier et second signaux de rayonnement électromagnétique d'une partie de tissu recevant une perfusion sanguine qui correspondent à deux longueurs d'onde lumineuse différentes; obtenir une évaluation de la qualité des signaux électromagnétiques; sélectionner les pondérations pour un moyenneur d'ensembles sur la base de la qualité des signaux; et enfin, moyenner en ensembles les signaux électromagnétiques à l'aide du moyenneur d'ensembles.

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