Pupilary screening method and system
US8393734B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2008 |
| Grant date | Mar 12, 2013 |
| Priority date | — |
| Expiry date | Mar 9, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2560/0425
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of screening a pupil of a subject to determine whether the pupil reflex resembles a canonical pupil reflex is disclosed. The method comprises the steps of stimulating the pupil with a stimulus source. The method further includes the steps of using a pupilometer to track the pupil's constriction response over a duration of time, wherein the step of tracking the pupil constriction response begins substantially simultaneously with or immediately subsequent to time 0 and lasts for a period of time y, and using the pupilometer to collect a plurality of data points in which each data point corresponds with a diameter of the pupil at a specific time within the time duration y. The method further includes the step of generating a pupil data profile by compiling the data points and determining whether one or more conditions arc met. wherein the one or more conditions comprises the following: (a) more than two data points exist representing the same pupil diameter at three or more separate times during duration y; (b) a first phase of the pupilary reflex response exists, wherein said first phase is characterized by a period of non-constriction immediately subsequent to time 0, said …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.