A method and a device for determining the hydration and/or...

A - Human Necessities – 61 – B

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A61B 5/053 (2006.01)

Patent

CA 2562875

Monitoring the hydration and/or nutrition status of a patient by bioimpedance. A bioimpedance method and device that makes use of a refined model by which the conductivity contributions from intracellular tissues can be taken better into account to enable an improved assessment of the body composition of a patient with increased accuracy. The intracellular volume (ICV) of a patient is determined by determining an intracellular electrical resistance Rmix of the patient and deriving the intracellular volume ICV using Rmix by taking into account that a cell of a kind of tissue contributes differently to the electrical resistance Rmix of the intracellular volume ICV compared with a cell of a second kind of tissue. The application also relates to a device for carrying out the method according to the invention and to a computer program product to be used on such a device.

Contrôle de l'état d'hydratation et/ou de nutrition d'un patient par bioimpédance. Un procédé et un dispositif à bioimpédance utilisent un modèle affiné permettant de mieux tenir compte des contributions à la conductivité de tissus intracellulaires, afin de permettre une évaluation améliorée de la composition du corps d'un patient avec une précision accrue. Le volume intracellulaire (ICV) d'un patient est déterminé par la détermination d'une résistance électrique intracellulaire Rmix du patient et par dérivation du volume intracellulaire ICV au moyen de Rmix, en tenant compte du fait qu'une cellule d'un type de tissu contribue de manière différente à la résistance électrique Rmix du volume intracellulaire ICV par rapport à une cellule d'un deuxième type de tissu. L'invention porte également sur un dispositif permettant la mise en oeuvre du procédé de l'invention et sur un produit-programme informatique à utiliser sur ledit dispositif.

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