Viscosity measuring apparatus and method of use

G - Physics – 01 – N

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Details

G01N 11/04 (2006.01) A61B 5/145 (2006.01) A61B 5/15 (2006.01) A61N 7/00 (2006.01)

Patent

CA 2301161

A blood viscosity measuring system and method that monitors the rising head of a column of fluid representing a living being's blood in vivo to determine the blood viscosity over a range of shears. The system includes a capillary tube, at least a portion of which is located within the vascular system of the being, and a riser tube, having a liquid therein coupled to the capillary tube. A sensor and associated microprocessor are provided to determine the change in the height of the liquid in the riser tube at plural points along the length of the tube from which the viscosity is calculated.

L'invention concerne un système de mesure de la viscosité du sang. L'invention traite également d'un procédé qui permet de contrôler l'augmentation de la hauteur d'une colonne de fluide, représentant le sang in vivo d'un être humain en vie, pour déterminer la viscosité du sang sur une plage de cisaillements. Ce système comprend un tube capillaire, dont au moins une partie se situe dans le système vasculaire du sujet, et un tube de montée dans lequel le liquide est relié au tube capillaire. Un capteur et un microprocesseur associés permettent de déterminer le changement de hauteur du liquide dans le tube de montée, en plusieurs points situés sur la longueur du tube à partir duquel la viscosité est calculée.

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