Device for Non-Invasively Measuring Glucose
First Claim
1. A device for non-invasively measuring glucose level in a subject comprising:
- a unitary external unit having a first portion and an opposing second portion configured to receive a part of the subject'"'"'s body therebetween; and
at least two sensors attached to said unitary external unit, each sensor independently non-invasively measuring a value indicative of said glucose level and each transmitting said value to a processor.
1 Assignment
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Accused Products
Abstract
In order to increase the accuracy of non-invasive glucose measurement, the device uses a combination of three non-invasive methods: ultrasonic, electromagnetic and thermal. The non-invasive glucose monitor comprises a Main Unit, which drives three different sensor channels (one per technology), located on an external unit configured as an ear clip attached to the subject'"'"'s ear lobe. To effect the ultrasonic channel, ultrasonic piezo elements are positioned on opposing portions of the ear clip and thus opposite sides of the ear lobe. For implementation of the electromagnetic channel, capacitor plates are positioned on opposing portions of the ear clip and the ear lobe serves as the dielectric. The thermal channel includes a heater and a sensor positioned on the ear clip in close juxtaposition to the ear lobe.
14 Citations
26 Claims
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1. A device for non-invasively measuring glucose level in a subject comprising:
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a unitary external unit having a first portion and an opposing second portion configured to receive a part of the subject'"'"'s body therebetween; and at least two sensors attached to said unitary external unit, each sensor independently non-invasively measuring a value indicative of said glucose level and each transmitting said value to a processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A device for non-invasively measuring glucose level in a subject comprising:
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a housing having a first portion and an opposing second portion; a first capacitor plate positioned on said first portion and a second capacitor plate positioned on said opposing second portion of said housing and configured to receive a part of the subject'"'"'s body to which said device is attachable with said first capacitor plate spaced from said second capacitor plate by a calibrated distance; and an auto-oscillating circuit connected to said first and second capacitor plates. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A device for non-invasively measuring glucose level, comprising:
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a first ultrasonic piezo element effective to transmit a continuous ultrasonic wave having a characteristic velocity and phase and a second ultrasonic piezo element effective to receive said continuous ultrasonic wave, said first ultrasonic piezo element and said second ultrasonic piezo element positioned on opposing portions of said device and configured to receive therebetween a part of a subject'"'"'s body to which said device is attachable; a detector effective to detect a phase shift between said continuous ultrasonic wave as transmitted and as received; and a processor to calculate a glucose level based on said phase shift and in communication with said detector. - View Dependent Claims (24, 25)
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26. A device for non-invasively measuring glucose level configured to receive a part of a subject'"'"'s body, comprising:
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a heater effective to increase a surface temperature of said part of said subject'"'"'s body; a thermal sensor effective to measure a rate of temperature change positioned on said device in contact with said part of the subject'"'"'s body to which said device is receivable; and means for communicating said rate of temperature change to a processing means for calculating glucose level.
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Specification