Surgery – Truss – Pad
Patent
1992-09-23
1994-04-19
Smith, Ruth S.
Surgery
Truss
Pad
128746, A61B 510
Patent
active
053037154
ABSTRACT:
The presence of vestibular pathology is tested in an embodiment wherein the subject is placed on a support surface that is sway-referenced about an axis co-linear with the subject's ankle joints, if the subject is standing, or the subject's hip joints, if the subject is sitting. After the subject has assumed a position of equilibrium, a controlled external stimulus, such as an electrical, a caloric or a barometric stimulus, is applied to one or both of the subject's inner ears. It is then determined whether the stimulus 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-referenced about an axis perpendicular to the axis that is co-linear with the subject's ankle or hip joints. In another embodiment, the subject's visual orientation information is disrupted by means of a sway-referenced visual enclosure. In a further embodiment, the subject's head is aligned such that the sensitive axis of one vestibular end organ is aligned with the sway-reference axis.
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Black F. Owen
Lilly David J.
Nashner Lewis M.
NeuroCom International Inc.
Smith Ruth S.
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