System for correcting no2 monitor

A - Human Necessities – 61 – M

Patent

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Details

A61M 16/10 (2006.01) A61M 16/00 (2006.01) G01N 27/26 (2006.01) G01N 33/00 (2006.01) G01N 33/497 (2006.01)

Patent

CA 2206477

A system for correcting the concentration of NO2 detected by an electrochemical monitor in an apparatus for administering NO to a patient for therapeutic purposes. The system determines the effective monitoring time between the point in time that the sample of NO containing gas is removed by a sample conduit from the supply conduit to the patient and the point in time that the NO2 monitor actually analyzes the sample and determines the additional amount of NO2 that has been formed in the time-related reaction between NO and O2 in the sample conduit. Using that additional NO2 calculated value, the reading of the NO2 monitor is corrected to subtract that additional calculated NO2 from the monitor read value to produce a corrected, more accurate reading to the user.

Système de correction de la concentration en NO2 décelée par un moniteur électrochimique dans un appareil servant à administrer du NO à un patient à des fins thérapeutiques Le système détermine la durée effective de contrôle entre le moment où l'échantillon de gaz contenant du NO est prélevé dans le conduit d'amenée au patient par un conduit d'échantillonnage et le moment où le moniteur de NO2 analyse effectivement l'échantillon, et détermine la quantité additionnelle de NO2 qui s'est formée au cours de la réaction liée au temps entre le NO et le O2 dans le conduit d'échantillonnage. Le calcul de cette valeur additionnelle de NO2 permet de corriger la lecture du moniteur de NO2 en soustrayant cette valeur additionnelle de NO2 de la valeur lue sur le moniteur de manière à fournir au lecteur une valeur corrigée, plus précise.

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