A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 5/03 (2006.01) A61B 3/10 (2006.01) A61B 3/16 (2006.01) A61B 8/06 (2006.01)
Patent
CA 2523667
A non-invasive method and system for assessing intraocular pressure (ICP) is disclosed. The method comprises the steps of measuring venous outflow pressure (VOP) using a venous ophthalmodynamometer device (vODM) (32); measuring ophthalmic central retinal arterial blood flow using color Doppler imaging device (20); and then estimating ICP using venous outflow data from the vODM (32) and pulsatility and/or resistivity relationships derived from the Doppler imaging data. Further disclosed is a novel vODM (32) for measuring VOP in low flow veins.
L'invention concerne une méthode et un système non invasifs d'évaluation de la pression intra-oculaire (ICP). La méthode consiste à mesurer la pression du débit veineux (VOP) à l'aide d'un ophthalmodynamomètre veineux (vODM) (32); à mesurer le flux sanguin artériel rétinien ophthalmique central à l'aide d'un dispositif d'imagerie Doppler (20) couleur; puis à estimer la pression intra-oculaire à l'aide des données de débit veineux du vODM (32) et des relations de pulsatilité et/ou de résistivité dérivées des données d'imagerie Doppler. L'invention concerne également un nouveau vODM (32) permettant de mesurer le débit veineux (VOP) dans les veines à faible débit.
Bennett Jones Llp
Caritas St. Elizabeth's Medical Center Of Boston Inc.
Querfurth Henry W.
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