NFC-enabled test sensors, systems and methods using the same
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Publication Number
US-12117414-B2
Publication Date
2024-10-15
Expiration Date
Abstract
An electrochemical test sensor is adapted to receive a fluid sample including an analyte. The electrochemical test sensor includes a base. The base includes an enzyme adapted to react with the analyte. The electrochemical test sensor further includes a plurality of electrodes, a near field communication (NFC) tag chip, an analog front end (AFE) and a microcontroller.
Core Innovation
The invention relates to an NFC-enabled electrochemical test sensor and an associated system and method for determining analyte information of a fluid sample. The sensor includes a base comprising an enzyme adapted to react with the analyte. An NFC tag chip includes an analog front end (AFE) configured to start an electrochemical reaction with the analyte and a microcontroller configured to control the AFE and to communicate data obtained from the electrochemical reaction.
The NFC tag chip transmits read-only data that comprises an identifier for the NFC tag chip. The read-only data represents data obtained from the electrochemical reaction. An NFC-enabled reader receives the data from the microcontroller and processes the received data to determine an analyte concentration value.
In the disclosed system, the NFC-enabled reader determines analyte concentration value based on the data, and may apply one or more algorithms. In the disclosed method, a test sensor is provided and the electrochemical reaction is started using the AFE controlled by the microcontroller, after which the reaction data is transmitted to the NFC-enabled reader for processing to determine the analyte concentration value.
Claims Coverage
The partial content includes three independent claim sets. Across these independent claims, the coverage includes an enzyme-based base, an NFC tag chip with AFE and microcontroller, initiating an electrochemical reaction, transmitting reaction data, and NFC-enabled reader processing to determine an analyte concentration value.
NFC-enabled electrochemical test sensor with read-only identifier data
An electrochemical test sensor with a base comprising an enzyme adapted to react with the analyte and an NFC tag chip comprising a battery, an analog front end (AFE) configured to start an electrochemical reaction with the analyte, and a microcontroller configured to control the AFE and to communicate data obtained from the electrochemical reaction, where the NFC tag chip transmits read-only data comprising an identifier for the NFC tag chip.
System with NFC-enabled reader determining analyte concentration value
A system for determining analyte information of a fluid sample comprising a test sensor with a base comprising an enzyme adapted to react with the analyte and an NFC tag chip comprising a battery, an analog front end (AFE) configured to start an electrochemical reaction with the analyte, and a microcontroller configured to control the AFE, and an NFC-enabled reader configured to receive data from the microcontroller and to determine an analyte concentration value based on the data.
Method transmitting electrochemical reaction data for NFC reader processing
A method for determining analyte information of a sample comprising providing a test sensor with a base comprising an enzyme adapted to react with an analyte and a battery-powered near field communication (NFC) tag chip comprising an analog front end (AFE) configured to start an electrochemical reaction with the analyte and a microcontroller configured to control the AFE, transmitting data obtained from the electrochemical reaction to an NFC-enabled reader, and having the NFC-enabled reader process the data to determine an analyte concentration value.
The independent claim coverage centers on an enzyme-based electrochemical sensor integrated with an NFC tag chip (battery, AFE, microcontroller) that starts an electrochemical reaction and communicates reaction data to an NFC-enabled reader for processing to determine an analyte concentration value, with one independent claim additionally requiring read-only data including an NFC tag chip identifier.
Stated Advantages
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