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Publication Number
US-11800974-B2
Publication Date
2023-10-31
Expiration Date
Abstract
A system for measuring eye tracking may include a chassis, which may include a main column and a head rest assembly. The head rest assembly may include a stimulus screen for displaying a video to the patient, an optical mirror, an eye tracking camera, and at least one head rest member for stabilizing the patient's head, relative to the stimulus screen. The system may also include: a base attached to a bottom of the main column to support the main column; an arm extending from the main column to support the head rest assembly; a touchscreen interface attached to the main column and configured to provide control of the system to a user; a camera computer housed in the main column for controlling the eye tracking camera; and a system computer housed in the main column for controlling the stimulus screen, data processing and other functions.
Core Innovation
An eye-tracking diagnostic system is described for measuring eye tracking in a patient and using the measured eye tracking to help diagnose an abnormality. The system includes a stimulus screen for displaying a video to the patient and an infrared eye tracking camera that captures binocular infrared eye movements. Optical folding is implemented by an optical mirror disposed along an optical path between the patient and the eye tracking camera.
The system includes a head rest assembly with a chin rest and a forehead rest that stabilize the patient's head relative to the stimulus screen. The forehead rest member is disposed between the patient's forehead and the stimulus screen and defines a fixed distance therebetween. The position of both the stimulus screen and the forehead rest member is adjustable by an electrically driven arm capable of vertical movement relative to the main body.
System electronics include a camera computer for controlling the eye tracking camera and a system application computer for controlling the stimulus screen, data processing, and other functions. A touchscreen interface provides control of the system to a user through operator console screens and workflow displays. The diagnostic output is generated from gaze data to provide a 0–20 BOX score, with a threshold at 10 used to indicate abnormality/no abnormality, along with quality indicators and reporting.
Claims Coverage
The document provides two independent system claims, centered on an eye-tracking diagnostic system that measures patient eye tracking and uses the measured eye tracking to help diagnose an abnormality. One independent claim includes a general stimulus, measurement, stabilization, and adjustment architecture, and the other independent claim further specifies the presence of an optical mirror spaced from the stimulus screen.
Eye tracking diagnostic system using a stimulus screen and forehead stabilization
A system for measuring eye tracking in a patient and using the measured eye tracking to help diagnose an abnormality, comprising a main body, a stimulus screen for displaying a video to the patient, an eye tracking camera, at least one forehead rest member disposed between the patient's forehead and the stimulus screen and defining a fixed distance therebetween, an arm capable of vertical movement relative to the main body with movement configured to adjust the position of both the stimulus screen and the at least one forehead rest member, a touchscreen interface configured to provide control of the system to a user, a camera computer for controlling the eye tracking camera, and a system computer for controlling the stimulus screen, data processing and other functions.
Eye tracking diagnostic system with optical mirror spaced from the stimulus screen
A system for measuring eye tracking in a patient and using the measured eye tracking to help diagnose an abnormality, comprising a main body, a stimulus screen for displaying a video to the patient, an optical mirror spaced from the stimulus screen, an eye tracking camera, at least one forehead rest member disposed between the patient and the stimulus screen and defining a fixed distance therebetween, an arm capable of vertical movement relative to the main body with movement configured to adjust the position of both the stimulus screen and the at least one forehead rest member, a touchscreen interface configured to provide control of the system to a user, a camera computer for controlling the eye tracking camera, and a system computer for controlling the stimulus screen, data processing and other functions.
Across both independent claim sets, the core claimed coverage is the combination of a stimulus screen displaying a video to a patient, an eye tracking camera measuring patient eye tracking, a forehead rest member positioned between the patient and the stimulus screen to define a fixed distance, an arm with vertical movement configured to adjust both the stimulus screen and the forehead rest member, and touchscreen control with computer-controlled stimulus and data processing. One independent claim further includes an optical mirror spaced from the stimulus screen.
Stated Advantages
Helps diagnose an abnormality using measured eye tracking.
Documented Applications
Eye-tracking diagnostic use to measure a patient's eye tracking and help diagnose an abnormality, including generation of a report with quality indicators and a gaze-based score.
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