Colorimetric Detection Card for Hazardous Material Isolation

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Solution Overview

Problem

First responders face challenges in quickly identifying hazardous materials in emergency situations and determining appropriate action plans, as existing detection methods often fail to provide immediate and actionable information, leading to potential risks to life and property.

Innovation Solution

A portable hazardous material detection tool with colorimetric membranes that change color upon detecting specific hazardous materials, accompanied by an action plan for securing the area, allowing first responders to instantly identify threats and take necessary isolation measures without consulting reference guides.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If standard electronic 4-gas meters are used for hazardous material detection, then common gases (O2, LEL, H2S, CO) can be detected, but they fail to identify other hazardous materials such as corrosive environments from ammonium gas leaks

Engineering Contradiction:

Improvedetection capabilityVSAvoidhazard identification accuracy

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The detection card integrates multiple detection membranes on a single card, allowing first responders to detect various hazardous materials (ammonia, chlorine, hydrogen sulfide, phosphine, sulfur dioxide) using one universal tool rather than multiple specialized devices

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The detection card is divided into separate detection zones, each containing membranes specific to different hazardous materials, allowing simultaneous detection of multiple substances in a single scanning operation

Inventive Principle:

Principle #1Segmentation

2Loss of information

If first responders consult reference guides (Emergency Response Guide, NIOSH Pocket Guide) for action plans, then comprehensive hazard information is available, but this process is too time-consuming for immediate emergency response

Engineering Contradiction:

Improveaction plan completenessVSAvoidresponse time

Core Design Contradiction:

Loss of informationVSLoss of time

Solution Approach 1:

Action plans for different hazardous materials are pre-printed directly on the detection card in the corresponding detection zones, so first responders can immediately see and execute the appropriate response actions without needing to consult external reference guides

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The detection function and the action plan information are merged into a single integrated card, combining what was previously separate resources (detection device + reference guide) into one portable tool

Inventive Principle:

Principle #5Merging (Combining)

3Ease of operation

If portable detection apparatus with integrated action plans is created, then immediate actionable information is provided, but the device complexity increases compared to simple detection membranes

Engineering Contradiction:

Improveuser-friendlinessVSAvoidapparatus structure

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The detection card is designed to be self-explanatory and self-directed, with color-coded zones and corresponding action plans that guide first responders through the response process without requiring external training materials or complex interfaces

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

Different detection zones are color-coded to match the hazardous material being detected, creating an intuitive visual system that simplifies interpretation of results and corresponding actions without requiring complex displays or interfaces

Inventive Principle:

Principle #32Color changes

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 tool enables rapid, visual detection of hazardous materials and provides immediate action plans, ensuring timely and effective area isolation, thereby reducing risks to first responders and the public during emergency situations.

Implementation Method 1

at least one detection membrane configured to change color upon the detection of a predetermined hazardous material present in the air (aerosolized) at a threshold level

Methodology Applied

Scientific EffectColorimetric detection: Absorption Spectroscopy

Data Source

PatentUS10247726B2Hazardous material detection and isolation distance apparatus and method

Publication Date: 2019.04.02 ZOUR JOHN R

AI summary

Disclosed herein is a first responder hazardous material detection and isolation distance (HMDID) apparatus and method that addresses the disconnect that exists in two current first responder tools: a means for detecting a hazardous material, but also the need for an immediate action plan to secure a dangerous area and prevent harm to individuals, such as first responders present at an emergency scene. The detection apparatus comprises test membranes configured to detect a hazardous material present in the atmosphere, by producing a visual color change when exposed to air contaminated with the hazard. The test membranes are attached to a planar form, such as a flat paper card, and are accompanied by an isolation indicator and action item for isolating an area depending on the level of hazardous material present in the atmosphere.