Motion sickness/vertigo prevention device and method

Details Motion sickness/vertigo prevention device and method Motion sickness/vertigo prevention device and method

A - Human Necessities

61

F

A61F 9/08 (2006.01)

Patent

CA 2197588

A device and method which operates as an artificial labyrinth to eliminate sensory mismatch between the natural labyrinth/vestibular system and the vision system of an individual. The present invention provides an alternative means for the user to determine the true orientation of his body with respect to the surrounding environment. The method can be effected by means of a device which senses true body orientation and displays corresponding visual orientation cues that the brain can use to confirm other visual position information. The display can be projected into space in front of the user, directly onto the user's retina, or effected by pictorial scene averaging. The device is particularly useful in the rehabilitation treatment of persons suffering from vestibular nervous system defect or damage, and in providing relief to those suffering from the symptoms of nausea and/or vertigo which are often experienced as a result of the aforementioned sensory mismatch.

Méthode et appareil servant de labyrinthe artificiel en vue d'éliminer le décalage sensoriel entre le labyrinthe/système vestibulaire naturels et le système visuel d'une personne. La présente invention procure à l'utilisateur un moyen supplémentaire pour déterminer l'orientation réelle de son corps par rapport à son environnement immédiat en affichant des indices visuels relatifs à l'orientation réelle du corps que le cerveau peut utiliser pour confirmer d'autres informations visuelles concernant la position du corps. L'affichage peut être projeté dans l'espace au devant de l'utilisateur ou directement sur sa rétine, il peut être constitué grâce à une moyenne des images qui composent la scène. L'appareil est particulièrement utile pour la rééducation des personnes dont le système nerveux vestibulaire présente des anomalies ou est endommagé, ou pour soulager celles qui souffrent des symptômes de nausée et/ou de vertige, souvent dus au décalage sensoriel précité.

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