Analyte Sensor Fuse Members for Auto-Calibration
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Solution Overview
Problem
Existing analyte sensors require manual calibration, which can lead to inaccuracies due to batch-to-batch variations in reagents and potential user errors, and existing auto-coding systems have limitations in simplicity and information encoding capacity.
Innovation Solution
The use of analyte sensors with multiple fuse members that contain coded information, where each fuse member has a distinct burn value, allowing an analyte testing meter to automatically decode calibration constants and other information by sequentially burning the fuses and determining their burn values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual calibration entry is used, then user control is maintained, but accuracy and precision are reduced due to potential improper entry
Solution Approach 1:
The analyte sensor performs self-calibration by automatically providing calibration information through its fuse members, eliminating the need for manual user input. The sensor itself serves the function of calibrating the testing meter, thereby improving accuracy while maintaining operational simplicity.
Solution Approach 2:
The patent replaces the manual mechanical entry system with an electrical/automated reading system. The analyte testing meter automatically reads calibration information from the sensor's fuse members through electrical contacts, substituting manual keying with an automated electronic process.
2Extent of automation
If auto-coding is implemented on sensor packaging, then manual entry is eliminated, but access complexity and information encoding capacity are limited
Solution Approach 1:
The calibration information is extracted from the sensor packaging and directly integrated onto the analyte sensor itself through fuse members. This allows the meter to read calibration data directly from the sensor without requiring separate packaging access or complex external encoding mechanisms.
Solution Approach 2:
The patent uses variations in fuse member properties (such as burn values, resistance, or other electrical characteristics) to encode calibration information. By changing the physical parameters of the fuse members, multiple bits of information can be stored in a compact form that is easily readable by the meter.
3Extent of automation
If multiple electrical contacts are used for auto-coding, then calibration information can be read automatically, but device complexity increases
Solution Approach 1:
The fuse members serve multiple functions: they act as electrical contacts for power and data transmission, and simultaneously encode calibration information through their physical properties. This multi-functionality reduces the need for separate dedicated contacts, thereby simplifying the overall device structure.
Solution Approach 2:
Instead of encoding information through additional contacts in the spatial dimension, the patent encodes information through variations in fuse member properties (such as resistance, burn voltage, or time-to-fuse) which adds an informational dimension without increasing physical contact complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach simplifies the calibration process, reduces user error, and enables the encoding of a large amount of information, including calibration constants, manufacturing details, and anti-counterfeiting codes, ensuring accurate analyte detection and improved user experience.
Implementation Method 1
a detection circuit adapted to determine the burn values of the plurality of fuse members
Data Source
AI summary
In some aspects, an analyte sensor is provided. The analyte sensor has a plurality of fuse members associated therewith. The fuse members may be burned in sequence and the burn values (related to current, voltage, or time) may be used to extract/decode information. The decoded information may include calibration constant, expiration or manufacture date, counterfeiting codes, warnings, etc. Systems and methods for burning and detecting such burn values of the plurality of fuse members and decoding the coded information related to the sensor are provided, as are numerous other aspects.