Continuous Test Tape with Functional Sections for Compact Glucose Analysis

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Solution Overview

Problem

Existing blood glucose monitoring systems require significant space and complex mechanisms for storing and processing disposable test strips, and lack additional functionalities beyond measurement.

Innovation Solution

A test tape with multiple test sections and functional sections that can be advanced to perform auxiliary functions, such as calibration, cleaning, protection, and information display, integrated into a portable instrument, allowing for efficient use of unused tape space for additional functions like optical calibration, environmental sensing, and user information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If disposable test strips are used for blood glucose monitoring, then measurement can be performed simply and rapidly, but storage and processing require large space and complicated drives

Engineering Contradiction:
Improvesimplicity and rapidity of measurementVSAvoidstorage space requirement
Core Design Contradiction:
Ease of operationVSVolume of stationary object

Solution Approach 1:

Multiple test sections are integrated onto a single continuous test tape that is wound on a spool, combining what would traditionally be separate test strips into one compact reusable carrier, thereby reducing storage space while maintaining ease of use

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The test tape serves multiple functions: it provides sequential test sections for glucose monitoring and includes functional sections for calibration, cleaning, and protective fields, eliminating the need for separate components and reducing overall device complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Volume of stationary object

If a continuous test tape with multiple test sections is used, then storage space is reduced, but the device requires tape advancement mechanisms

Engineering Contradiction:
Improvestorage space reductionVSAvoidtape transport mechanism
Core Design Contradiction:
Volume of stationary objectVSDevice complexity

Solution Approach 1:

The test tape is designed to be manually advanced by the user through simple operations, eliminating the need for complex automated tape transport mechanisms while still providing sequential access to multiple test sections

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The test tape is divided into discrete functional sections (test sections, calibration sections, cleaning sections) that can be sequentially accessed, allowing the device to use simple advancement mechanics rather than complex random access mechanisms

Inventive Principle:
Principle #1Segmentation

3Measurement precision

If functional sections are added to the test tape for auxiliary functions, then measurement accuracy and hygiene are improved, but the tape design becomes more complex

Engineering Contradiction:
Improvemeasurement accuracyVSAvoidtape design complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The test tape is designed as a multi-functional carrier that includes not only test sections but also calibration fields, cleaning fields, and protective fields, all integrated into a single tape structure, thereby improving measurement accuracy and hygiene without requiring separate components

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

Calibration and cleaning functions are pre-integrated into the test tape at specific positions, allowing these auxiliary functions to be performed automatically during tape advancement without requiring additional user intervention or complex separate mechanisms

Inventive Principle:
Principle #10Preliminary action

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

Enhances measurement accuracy, simplifies handling, and improves hygiene by utilizing the test tape for multiple functions beyond glucose analysis, reducing the need for additional components and user intervention.

Implementation Method 1

The test section comprises a reagent which reacts with the body fluid to produce a response to a constituent in the body fluid

Methodology Applied
Scientific EffectChemical reaction: Chemical Bonding

Implementation Method 2

a measuring unit is disposed in the test instrument for detecting the constituent of the body fluid on an active test section

Methodology Applied
Scientific EffectOptical measurement: Absorption Spectroscopy

Implementation Method 3

a white, black, grey, coloured or transparent calibration field which is especially useful for the optical calibration of the measuring unit

Methodology Applied
Scientific EffectOptical calibration: Reflection

Data Source

PatentUS9604208B2Test device for analyzing body fluids
Publication Date: 2017.03.28 ROCHE DIABETES CARE INC
  • US9604208B2 patent drawing
  • US9604208B2 patent drawing

AI summary

A test instrument for analyzing body fluids such as blood or urine. The instrument includes a wound test tape which can be transported from a storage space into a waste space by advancing the tap. The test tape has a plurality of test sections to which body fluid can be applied at a receiving position and also includes a measuring unit for detecting a constituent of the body fluid on an active test section. In order to carry out auxiliary instrument functions, in addition to the test sections, the test tape has one or more functional sections which can be brought into a functional position by advancing the tape.