Biological Sensor Wire Calibration for Repeatable CGM Manufacturing

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Solution Overview

Problem

Existing continuous glucose monitoring (CGM) sensors face challenges in manufacturing accuracy and repeatability due to variations in the construction of electrode layers, requiring frequent replacement and manual calibration, which is inefficient and labor-intensive.

Innovation Solution

A system and method for automated calibration of biological sensors using a mobile calibration apparatus with a wire-holding fixture and electrical test board, coupled with a robot assembly to transport and test the sensors in multiple calibration solutions, enabling precise and efficient calibration of individual sensor wires.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual calibration methods are used for CGM sensors, then individual sensor calibration can be performed, but the process is labor-intensive and inefficient

Engineering Contradiction:

Improvecalibration efficiencyVSAvoidmanual operation complexity

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

The system enables automated self-calibration of CGM sensors through a robotic assembly that automatically immerses sensor wires in calibration solutions, eliminates the need for manual finger-stick calibration by patients, and performs calibration procedures autonomously

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

Manual calibration operations are replaced by an automated robotic system that uses mechanical arms to handle sensor wires, automate the immersion process in calibration solutions, and perform measurements without human intervention

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If manufacturing processes for CGM sensors are simplified, then production speed increases, but manufacturing precision and repeatability of electrode layers deteriorate

Engineering Contradiction:

Improvemanufacturing speedVSAvoidelectrode layer construction accuracy

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

Calibration procedures are performed in advance during the manufacturing process rather than requiring post-manufacturing adjustments, ensuring that sensors are pre-calibrated with known accuracy before deployment

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system incorporates feedback mechanisms where calibration measurements are automatically recorded and used to adjust manufacturing parameters, improving repeatability and precision of electrode layer construction through iterative optimization

Inventive Principle:

Principle #23Feedback

3Measurement precision

If automated calibration systems are implemented, then calibration precision and repeatability improve, but device complexity increases

Engineering Contradiction:

Improvecalibration accuracyVSAvoidcalibration system complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The robotic calibration system is designed to handle multiple sensor types and calibration solutions through a universal platform, reducing overall system complexity by consolidating functions rather than creating separate specialized systems

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

A standardized interface and control system act as an intermediary between the robotic assembly and calibration measurements, simplifying the complex interactions and providing a unified control layer that manages the automated calibration process

Inventive Principle:

Principle #24Intermediary (Mediator)

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

The system improves manufacturing scalability, accuracy, and efficiency by providing automated and repeatable calibration, reducing the need for manual finger stick calibration and enhancing the sensitivity of continuous glucose monitoring devices.

Implementation Method 1

an electrical contact configured to electrically connect to the working wire through the wire-holding fixture

Methodology Applied

Scientific EffectElectrical conduction: Conduction (electrical)

Implementation Method 2

Electrochemical glucose sensors operate by using electrodes which typically detect an amperometric signal caused by oxidation of enzymes during conversion of glucose to gluconolactone

Methodology Applied

Scientific EffectElectrochemical oxidation: Oxidation

Data Source

PatentUS20260013758A1Calibration for a biological sensor

Publication Date: 2026.01.15 ALLEZ HEALTH INC

AI summary

Calibration for a biological sensor involves a holder coupled to a housing and configured to retain a wire-holding fixture that holds a working wire for the biological sensor. An electrical test board is coupled to the housing, wherein the electrical test board is configured with electronics of a continuous biological monitor and has an electrical contact configured to electrically connect to the working wire through the wire-holding fixture.