System and method for obtaining ocular tissue biomechanical parameters


Unspecified (2019) System and method for obtaining ocular tissue biomechanical parameters. .

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Abstract

The invention refers to a system (100) for obtaining biomechanical properties of ocular tissue, the system comprising: - an air-puff generator (10) configured to generate a stepped-frequency train of air-puff pulses of different frequencies for delivery onto the ocular tissue; - an imaging device (20) cooperatively coupled to the air-puff generator, the imaging device being configured to capture a plurality of axial positions of a region of the ocular tissue; - processing means (30) configured to: - process the plurality of axial positions provided by the imaging device for obtaining displacement and velocity of the region of the ocular tissue at the different frequencies; and to - carry out frequency domain analysis of the obtained displacements and velocities of the region of the ocular tissue at the different frequencies to at least derive a mechanical resonance frequency of the ocular tissue; and to - perform inverse calculation and obtain biomechanical parameters and intraocular pressure of the ocular tissue using the displacement, velocity and mechanical resonance frequency as inputs in a Fine-Element-Model based calculation. The invention also relates to a method for obtaining biomechanical parameters of ocular tissue.

Item Type: Patent
Depositing User: Symplectic Admin
Date Deposited: 19 Nov 2020 08:29
Last Modified: 24 Sep 2021 07:12
Open Access URL: https://patentscope.wipo.int/search/docs2/pct/WO20...
URI: https://livrepository.liverpool.ac.uk/id/eprint/3096226