Methods of and systems and devices for assessing intracranial pressure non-invasively
First Claim
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1. A non-invasive system for assessing intracranial pressure, the system comprising:
- a venous outflow pressure (VOP) measuring device to provide venous outflow pressure (VOP) data;
an ophthalmic or central retinal arterial flow velocity measuring device to provide ophthalmic or central retinal arterial flow velocity data, respectively; and
a device for determining intracranial pressure (ICP) using venous outflow pressure (VOP) data and a characteristic of the ophthalmic or central retinal artery from ophthalmic or central retinal arterial flow velocity data, respectively.
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Abstract
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); measuring ophthalmic r central retinal arterial blood flow using color Doppler imaging device; and then estimating ICP using venous outflow data from the vODM and pulsatility and/or resistivity relationships derived from the Doppler imaging data. Further disclosed is a novel vODM for measuring VOP in low flow veins.
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20 Claims
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1. A non-invasive system for assessing intracranial pressure, the system comprising:
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a venous outflow pressure (VOP) measuring device to provide venous outflow pressure (VOP) data; an ophthalmic or central retinal arterial flow velocity measuring device to provide ophthalmic or central retinal arterial flow velocity data, respectively; and a device for determining intracranial pressure (ICP) using venous outflow pressure (VOP) data and a characteristic of the ophthalmic or central retinal artery from ophthalmic or central retinal arterial flow velocity data, respectively. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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