Dynamic cardiovascular monitor

A - Human Necessities – 61 – B

Patent

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A61B 5/02 (2006.01) A61B 5/022 (2006.01) G06F 17/00 (2006.01)

Patent

CA 2404272

Methods and systems reconstruct and verify aortic blood pressure waveforms from peripheral blood pressure waveform data using mathematical models. The models combine analytical models of pulse wave propagation in the cardiovascular system with empirical models derived from measurements taken from human subjects. When used to reconstruct the aortic pressure of a given subject, the models are adjusted to the subject and the subject's physiological state based upon measurements performed on the subject's cardiovascular system.

L'invention concerne des procédés et systèmes servant à reconstruire et vérifier les formes d'ondes de la pression sanguine aortique, à partir de données de formes d'ondes de la pression sanguine périphérique et au moyen de modèles mathématiques. Ces modèles combinent des modèles analytiques de propagation des ondes pulsatiles dans le système cardio-vasculaire, avec des modèles empiriques dérivés de mesures prises à partir de patients humains. Lorsque l'on utilise les modèles pour reconstruire la pression aortique d'un patient donné, on règle ces modèles sur le patient et sur l'état physiologique de celui-ci, en fonction des mesures exécutées sur le système cardio-vasculaire du patient.

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