NON-INVASIVE BLOOD GLUCOSE CONCENTRATION SENSING USING LIGHT MODULATION
First Claim
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1. A method for determining glucose concentration in the blood of a user, the method comprising the steps of:
- emitting light of a first color into an eye of the user;
emitting light of a second color into the eye of the user;
sensing neurophysiological brain activity and electrical responses of the eye of the user during and after emitting the light of the first and second colors into the eye of the user; and
in a processor, correlating one or both of the sensed neurophysiological brain activity and the sensed electrical responses of the eye to the glucose concentration in the blood of the user.
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Abstract
A non-invasive blood glucose concentration sensing system and method includes emitting light of a first color into an eye of the user and then emitting light of a second color into the eye of the user, or flashing blue light into the eye of the user. Neurophysiological brain activity and electrical responses of the eye of the user are sensed during and after emitting or flashing of the light into the eye of the user. In a processor, one or both of the sensed neurophysiological brain activity and the sensed electrical responses of the eye are correlated to the glucose concentration in the blood of the user.
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Citations
20 Claims
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1. A method for determining glucose concentration in the blood of a user, the method comprising the steps of:
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emitting light of a first color into an eye of the user; emitting light of a second color into the eye of the user; sensing neurophysiological brain activity and electrical responses of the eye of the user during and after emitting the light of the first and second colors into the eye of the user; and in a processor, correlating one or both of the sensed neurophysiological brain activity and the sensed electrical responses of the eye to the glucose concentration in the blood of the user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A non-invasive blood glucose concentration sensing system, comprising:
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a light source configured to emit light of a first color and light of a second color into an eye of a user; a neurophysiological brain activity sensor configured to sense neurophysiological brain activity of a user and supply neurophysiological brain activity signals representative thereof; an electroretinography (ERG) sensor configured to sense electrical responses of the eye of the user; and
supply ERG signals representative thereof; anda processor in operable communication with the light source, the neurophysiological brain activity sensor, and the ERG sensor, the processor coupled to receive the neurophysiological brain activity signals and the ERG signals and configured to; control the light source to emit the light of the first color and then emit the light of the second color, process the neurophysiological brain activity signals and the ERG signals, and correlate one or both of the sensed neurophysiological brain activity and the sensed electrical responses of the eye to the glucose concentration in the blood of the user. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A method for determining glucose concentration in the blood of a user, the method comprising the steps of:
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emitting blue light into an eye of the user; sensing neurophysiological brain activity and electrical responses of the eye of the user during and after emitting the blue light into the eye of the user; and correlating one or both of the sensed neurophysiological brain activity and the sensed electrical responses of the eye to the glucose concentration in the blood of the user.
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Specification