Straw-Shaped Test Probe for Pre-Ingestion Drug Detection

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing drug testing methods are reactive and primarily used for detecting drugs in bodily fluids after ingestion, failing to provide a proactive means to prevent unintentional ingestion of contaminated food and drinks.

Innovation Solution

A portable, unobtrusive test probe disguised as a drinking straw or stirrer, containing multiple discrete testing reagents along its length, allowing for immediate visual detection of drug presence in food and drinks by capillary action, with results visible through apertures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional drug testing methods are used on bodily fluids, then drug presence can be detected after ingestion, but the testing is reactive and cannot prevent unintentional ingestion

Engineering Contradiction:
Improveability to prevent unintentional ingestionVSAvoidtime for drug to be ingested before detection
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The test strip is activated before ingestion by contacting the liquid directly, allowing detection to occur prior to consumption. This preliminary action enables the user to identify contaminated beverages and avoid ingestion, fundamentally changing the timing from reactive post-ingestion testing to proactive pre-ingestion detection

Inventive Principle:
Principle #10Preliminary action

2Productivity

If test strips are made visible and accessible for immediate testing, then quick detection is possible, but the device becomes obtrusive and difficult to use discreetly

Engineering Contradiction:
Improvespeed of detectionVSAvoiddiscreetness of use
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The test strip is nested within a hollow housing that resembles a drinking straw. The housing contains the test strip and provides a protective environment, while the overall shape allows the device to be used discreetly by inserting it into beverages like a normal straw, eliminating the need for separate packaging or visible test equipment

Inventive Principle:
Principle #7Nested doll (Nesting)

3Reliability

If the test strip is contained within a housing for protection, then the reagents are protected from damage, but the testing process becomes more complex

Engineering Contradiction:
Improveprotection of reagentsVSAvoidstructure of housing and test strip integration
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The hollow housing serves multiple functions simultaneously: it protects the test strip during storage and handling, provides structural support, resembles a drinking straw for discreet use, and facilitates insertion into beverages for testing. This multi-functionality reduces the need for additional protective components or complex assembly mechanisms

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

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

Enables quick and discreet detection of drug contamination in food and drinks, allowing users to avoid potentially harmful substances before ingestion, thereby providing a proactive self-defense measure against inadvertent dosing.

Implementation Method 1

When the test strips are introduced into urine or saliva, the bodily fluid is absorbed and, through capillary action, comes into contact with the solid reagent chromatographically sensitive to a particular drug

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Data Source

PatentUS8673651B2Liquids test probe
Publication Date: 2014.03.18 REGER MICHAEL L
  • US8673651B2 patent drawing
  • US8673651B2 patent drawing
  • US8673651B2 patent drawing

AI summary

A package for holding and disguising a chromatographic test of food and drink is formed in the shape of a drinking straw or stirrer. The package encloses test patches which are sensitive to particular drugs and produce a color change upon contact with the drug. The package has a view port or slit to observe the condition of the test strip upon contact with food and drink.