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Head mountable device

a mountable device and head technology, applied in the field of head mountable devices, can solve the problems of difficult detection of mild traumatic brain injury using mri scans or ct scans, unreliable methods of diagnosis, and high labor intensity of workers, and achieve the effects of improving labor intensity, improving labor intensity, and improving labor intensity

Pending Publication Date: 2020-02-27
HEADSAFEIP PTY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention use electroencephalogram (EEG) to analyze the brain's activity by recording the electrical activity at the scalp level. This method is safe, inexpensive, and can be widely used.

Problems solved by technology

However, methods of diagnosis for mild Traumatic Brain Injury are typically subjective and often unreliable.
For example it is difficult to detect mild Traumatic Brain Injury using MRI scans or CT scans.
Mild Traumatic Brain Injury is a dangerous condition.
It is dangerous for an individual suffering mild Traumatic Brain Injury to receive a further impact before having recovered fully from the condition.
This is particularly dangerous in a sports situation in which a decision needs to be made quickly as to whether a player should resume participation in the game following a collision.
This presents a problem to accurate diagnosis of the condition of the player.
Overall, there is a possibility for errors and inaccuracies in diagnosis of mild Traumatic Brain Injury using subjective tests including SCAT5.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 2

[0165]The aim of this study was to evaluate the utility of a portable electrophysiology platform to record measurable SSVEPs from healthy individuals.

[0166]Participants

[0167]All participants were screened for a history of epilepsy, seizures and existing or previous brain injuries and conditions. Any positive findings excluded the participant from the study.

[0168]Equipment

[0169]Two main components of the system were identified: the visual stimulus generation component, and the EEG recorder. A computer was used to capture the data from the EEG recorder, and perform signal analysis on the data. The visual stimulus was delivered in two separate setups: a portable smartphone setup, and another utilising a traditional LCD computer monitor. For the portable setup, a Sony Xperia Z1 Compact smartphone (Sony Corporation, Minato, Tokyo, Japan) housed in a Google Cardboard (Google Inc., Googleplex, Mountain View, Calif., U.S.A.) was used. A Dell U2415 LCD monitor (Dell Technologies, One Dell Wa...

experiment i

[0205]4 healthy adults (3 males, 1 female, Mage=21.5, SDage=1.708) participated in Experiment I. All 4 subjects had 20 / 20 vision, and successfully completed all sections of Experiment I.

[0206]Delivery Platform

[0207]The mean Ratio Response of the LCD monitor was 6.415±0.627. Use of the portable platform yielded similar response ratios to the LCD monitor, with a mean Ratio Response of 6.199±0.501.

TABLE 4Response for Different Delivery PlafformsTraditionalSubjectLCDPortable17.3276.91225.9115.75236.2745.99546.1476.138Mean6.4156.199SD0.62650.5012

Stimulus Image

[0208]Both the pattern reversal and flash reversal images had similar responses, with a mean Ratio Response of 6.142±0.353 and 6.199±0.443 respectively.

TABLE 5Response Ratios for Different Stimulus ImagesSubjectFlash Rev.Pattern Rev.16.7216.63425.6255.80736.0156.12045.8656.006Mean6.0576.142SD0.47120.3527

[0209]Stimulus Frequency

[0210]Table 6 summarises the results of differing stimulus frequencies. A stimulus frequency of 15 Hz yield...

experiment ii

[0213]Experiment II evaluated 20 healthy adults (13 males, 7 females, Mage=36.47, SDage=18.54). All 20 participants had 20 / 20 vision, and successfully completed Experiment II.

[0214]The SSVEP parameters used for Experiment II were determined from Experiment I. Using the portable stimulus system, a flash-reversal image flickering at 15 Hz recorded for 30 seconds was used. With these parameters, the mean Ratio Response was 5.551±1.164.

[0215]A D'Agostino & Pearson normality test was performed and had a P-value of 0.9019, meaning the data were consistent with a Gaussian distribution.

[0216]Discussion

[0217]In this study we have been able to show that an EEG can reliably detect a 15 Hz SSVEP in normal subjects from a stimulus generated on a portable smartphone system with the same reliability as a standard LCD monitor.

[0218]The proposed system serves as a proof of concept for a dedicated portable diagnostic system. The results demonstrate that a reliable and consistent response can be expec...

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PUM

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Abstract

A head mountable device for detecting a functional disorder of the brain in a patient, comprising an LED display; at least one electrode for measuring electrical potential; the device being configured to be mountable on the head of a patient such that when mounted on the head of a patient the LED display is positioned before the eyes of a patient and the at least one electrode is positioned adjacent to the occipital lobe of the patient.

Description

[0001]The present invention relates to an apparatus and method for detecting a functional disorder of the brain and, in particular, to detect a functional disorder of the brain by monitoring the electrical response of the brain to a visual stimulus.BACKGROUND OF THE INVENTION[0002]Mild Traumatic Brain Injury (mTBI) and other functional disorders of the brain can be the result of physical impact, in particular impact to the head. Observed symptoms of mild Traumatic Brain Injury include loss of memory, lack of orientation and delay brain processing speed. Such symptoms are typically recognised as concussion.[0003]Mild Traumatic Brain Injury is often experienced in high impact sports, for example rugby, AFL and American football, as well as in other physical collisions, for example motor accidents. However, methods of diagnosis for mild Traumatic Brain Injury are typically subjective and often unreliable. For example it is difficult to detect mild Traumatic Brain Injury using MRI scans...

Claims

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Application Information

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IPC IPC(8): A61B5/0484A61B5/00
CPCA61B5/7235A61B5/0006A61B5/04842A61B5/4064A61B5/6803A61B2503/10A61B5/7264A61B5/0015A61B5/378A61B5/377A61B5/291
Inventor COHEN, ADRIAN JOHN
Owner HEADSAFEIP PTY LTD
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