Apparatus and method for determining the presence of vestibular

Details Apparatus and method for determining the presence of vestibular Apparatus and method for determining the presence of vestibular

1988-07-19

1989-05-16

Howell, Kyle L.

Telegraphy

Systems

Printing

178746, A61B 510

Patent

active

048300241

ABSTRACT:
A method for determining the presence of perilymph fistula or other abnormal coupling between a subject's middle ear and inner ear. The subject is placed on a support surface that is sway-stabilized about an axis that is co-linear with the subject's ankle joints. After the subject has assumed a position in equilibrium, a controlled changed in air pressure is introduced to the external canal of one of the subject's ears. It is then determined whether the controlled change in pressure produces a significant subject sway response. In an alternative embodiment, the sway response is monitored with the subject placed on a support surface that is sway-stabilized about an axis that is perpendicular to the axis that is co-linear with the subject's ankle joints.

REFERENCES:
Nosher, Sensory Feedback in Human Posture Control, MUT-70-3, Thesis, MIT, Jun. 1970.

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