Bias-probe rotation test of vestibular function
First Claim
1. A system comprising:
- a device that rotates a subject; and
a motion control to control motion of the device, the motion control adapted to provide a stimulus to the device to control motion of the device to temporarily turn off vestibular responses in one ear of the subject and to modulate the motion of the device while the vestibular responses in the one ear are turned off to evaluate responsiveness in another ear of the subject.
2 Assignments
0 Petitions
Accused Products
Abstract
Apparatus and methods for rotation test stimulus and analysis methods overcome many of the limitations of traditional clinical tests of peripheral vestibular function. An embodiment includes a rotational stimuli applied to the rotational motion for testing that includes two separate components, a bias component and a probe component. The bias component for rotational motion is designed to temporarily turn off vestibular responses in one ear while the responsiveness in the opposite ear is simultaneously evaluated using the probe component of the stimulus. Responses from application of these stimuli are analyzed by isolating and separating the bias response from the probe response. The bias and probe component responses are parameterized by applying curve fits of mathematical functions to the isolated bias and probe component responses. These parameters characterize the patient'"'"'s vestibular function.
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Citations
25 Claims
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1. A system comprising:
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a device that rotates a subject; and
a motion control to control motion of the device, the motion control adapted to provide a stimulus to the device to control motion of the device to temporarily turn off vestibular responses in one ear of the subject and to modulate the motion of the device while the vestibular responses in the one ear are turned off to evaluate responsiveness in another ear of the subject. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A system comprising:
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an eye velocity computing unit to compute eye velocity from eye position data from a subject as a result of applying a stimulus to affect vestibular responses of the subject, the stimulus having a bias component and a probe component such that vestibular responses in one ear of the subject are temporarily turned off during the application of the bias component with the probe component modulating the bias component to evaluate responsiveness in another ear of the subject; and
filters to isolate a bias response to the bias component of the stimulus from a probe response to the probe component of the stimulus to analyze separately the bias response and the probe response. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25)
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Specification