Noninvasive method and system for measuring pulmonary...

A - Human Necessities – 61 – B

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A61B 5/091 (2006.01) A61B 5/08 (2006.01)

Patent

CA 2736036

A pulmonary ventilation system comprising means for storing an empirical relationship that is designed and adapted to determine at least one pulmonary ventilation parame-ter as a function of a plurality of measured anatomical distances and volume-motion coefficients, means for acquiring the anatom-ical distances, means for determining the plurality of motion co-efficients, and processing means for determining the ventilation parameter based on the acquired anatomical distances and deter-mined plurality of volume-motion coefficients. In one embodi-ment, the system further includes means for acquiring base-line ventilation characteristics and means for correlating the base-line ventilation characteristics to the ventilation parameter determined with the empirical relationship.

L'invention porte sur un système de ventilation pulmonaire comprenant un moyen de mémorisation d'une relation empirique qui est conçu et apte à déterminer au moins un paramètre de ventilation pulmonaire en fonction d'une pluralité de distances anatomiques mesurées et de coefficients volume-mouvement, un moyen d'acquisition des distances anatomiques, un moyen de détermination de la pluralité de coefficients de mouvement et un moyen de traitement destiné à déterminer le paramètre de ventilation sur la base des distances anatomiques acquises et d'une pluralité déterminée de coefficients volume-mouvement. Dans un mode de réalisation, le système comprend en outre un moyen d'acquisition des caractéristiques de ventilation de ligne de base et un moyen de corrélation des caractéristiques de ventilation de ligne de base avec le paramètre de ventilation déterminé à l'aide de la relation empirique.

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