Interested in licensing this patent?
MTEC can help explore whether this patent might be available for licensing for your application.
Publication Number
US-9060805-B2
Publication Date
2015-06-23
Expiration Date
Abstract
A glucose monitoring system, includes a glucose sensor strip or package of strips. The strip includes a substrate and a glucose monitoring circuit that has electrodes and a bodily fluid application portion of selected chemical composition. An antenna is integrated with the glucose sensor strip. A RFID sensor chip is coupled with the glucose sensor strip and the antenna. The chip has a memory containing digitally-encoded data representing calibration and/or expiration date information for the strip.
Core Innovation
The document describes a glucose analyte monitoring system in which a glucose test strip or a package of glucose test strips integrates an antenna and an RFID sensor chip with onboard memory. The onboard memory stores digitally encoded calibration and/or expiration-date data, and may also store additional digitally encoded strip information such as lot number and/or manufacture date, strip type, and/or calibration code.
An RFID reader interrogates the RFID sensor chip and automatically retrieves the digitally encoded calibration and/or expiration-date data when the strip is inserted into a glucose meter or into a strip receptacle or port. The RFID reader can be integrated into the glucose meter or provided as a separate and/or plug-in component, and can read power and/or program the chip and retrieve the stored data for use in glucose monitoring.
The disclosed system includes embodiments for where the RFID chip is located, including an RFID chip on each strip versus an RFID chip mounted on a vial, container, or box of the test strips. The document also discusses RFID operating characteristics, including passive RFID tags and battery-powered or active RFID sensor chip embodiments, and identifies a preferred RFID operating frequency of 13.56 MHz.
Claims Coverage
The independent claim is a method determining a glucose level using an in vivo or partially implanted RFID glucose sensor chip, with an RFID reader device that receives glucose data, determines the glucose level, and displays it. The claim set includes multiple dependent refinements that specify RFID sensor chip type and operating characteristics, reader integration or detachment, and additional display and glucose analysis or trending features.
Interrogating an RFID glucose sensor chip and receiving glucose data
Interrogating an in vivo implanted or partially implanted glucose sensor comprising an RFID sensor chip with a device comprising an RFID reader to receive glucose data from the RFID sensor chip.
Determining glucose level from received signals and displaying the result
Receiving via circuitry of the device one or more signals indicative of the glucose level; determining via the circuitry the glucose level based on the one or more signals to provide a determined glucose level; and displaying the determined glucose level on a display of the device.
RFID operating frequency for the RFID sensor chip
Operating an RFID sensor chip at a frequency between about 125 kHz and about 134 kHz.
Active RFID sensor chip
Characterizing the RFID sensor chip as an active sensor chip.
Detachable RFID reader component
Providing the RFID reader as a detachable component of the device.
Touchscreen display
Specifying that the display includes a touchscreen.
Overall, the claim coverage centers on using an RFID reader to interrogate an in vivo or partially implanted RFID glucose sensor chip, receive glucose-indicative signals, compute a determined glucose level via device circuitry, and display the determined glucose level, with dependent features specifying RFID sensor chip operating characteristics, RFID reader integration versus detachable configuration, and display characteristics such as a touchscreen.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
Interested in licensing this patent?