Integrated device for non-invasive analyte measurement
First Claim
1. An analyte level measurement device having at least one integrated sensor, comprising:
- an infrared source for emitting an IR beam into an ATR plate, the IR beam having components at least in the region of a referencing wavelength and a measuring wavelength, the ATR plate having a measurement surface for contact with a skin surface of a user and for directing the IR beam against the skin surface, at least one IR sensor for measuring an absorbance of at least the referencing wavelength and the measuring wavelength; and
a sensor assembly having a contact surface, the sensor assembly being configured to detect at least one biometric feature indicative of the user.
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Accused Products
Abstract
An integrated device for non-invasive analyte measurement is described herein. In typical operation, the glucose measurement device is self-normalizing in that it does not employ an independent reference sample in its operation. The device uses attenuated total reflection (ATR) infrared spectroscopy for glucose measurement from the user'"'"'s skin surface. The device also includes a pressure and/or user identification sensor(s) to ensure that an authorized user is utilizing the device. The identification sensor may utilize capacitive or infrared detection of biometric identification features, such as fingerprints, for comparison to a stored value indicative of an authorized user. The device may be configured such that verification of a user'"'"'s identity may be a prerequisite to use and/or activation of the device.
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Citations
37 Claims
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1. An analyte level measurement device having at least one integrated sensor, comprising:
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an infrared source for emitting an IR beam into an ATR plate, the IR beam having components at least in the region of a referencing wavelength and a measuring wavelength, the ATR plate having a measurement surface for contact with a skin surface of a user and for directing the IR beam against the skin surface, at least one IR sensor for measuring an absorbance of at least the referencing wavelength and the measuring wavelength; and
a sensor assembly having a contact surface, the sensor assembly being configured to detect at least one biometric feature indicative of the user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method for selectively determining an analyte level from a skin surface, comprising
contacting the skin surface against a measurement surface of an ATR plate; -
measuring at least one biometric feature from the skin surface;
comparing the measured biometric feature against a predetermined biometric feature indicative of a predetermined user;
if the measured biometric feature matches the predetermined biometric feature, then irradiating the skin surface with an IR beam having components at least in a region of a referencing wavelength and a measuring wavelength through the ATR plate to produce a reflected IR beam indicative of the analyte level; and
detecting and quantifying the referencing wavelength and the measuring wavelength components in the reflected IR beam. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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Specification