Motion sickness/vertigo prevention device and method

Data processing: measuring – calibrating – or testing – Measurement system – Orientation or position

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175 4044, B07C 120

Patent

active

059666803

ABSTRACT:
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.

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patent: 5613022 (1997-03-01), Odhner et al.
patent: 5717392 (1998-02-01), Eldridge
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patent: 5729366 (1998-03-01), Yang
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"Performance and Well-Being Under Tilting Conditions: The Effects of Visual Reference and Artificial Horizon" by A. Rolnick and W. Bles, Aviation Space Environmental Medicine, 60(8); 779-785, 1989 Aug.
"A Retinal Display for Virtual-Environment Applications" by Joel S. Kollin, 1993 International Symposium, Digest of Technical Papers, vol. XXIV (p. 827).

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