Gel Capture Device for Localized Particle Retention

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Solution Overview

Problem

Current methods for preventing exposure to fine and ultrafine particles, such as asbestos fibers, during one-off and localized maintenance work in contaminated buildings are inadequate, as they require costly and complex procedures, including robotic decontamination, deep impregnation, and PPE use, making it impractical for occasional and localized operations.

Innovation Solution

A capture and retention device made of flexible, transparent, and waterproof plastic that allows tools to pass through while capturing and retaining fine and ultrafine particles using a gel reservoir, allowing secure encapsulation and analysis, enabling safe and efficient one-off and localized work without the need for PPE.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If conventional prevention methods (robotic decontamination, deep impregnation, PPE) are used, then exposure prevention is achieved, but cost and operational complexity increase significantly

Engineering Contradiction:
Improveexposure to fine and ultrafine particlesVSAvoidcomplexity of prevention procedures
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The prevention system is segmented into a portable capture device with gel reservoir that can be positioned at specific work locations, rather than requiring comprehensive environmental control systems. This localized approach reduces overall system complexity while maintaining effectiveness for one-off and localized maintenance work

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A gel-based intermediary substance is introduced as the active capturing medium within the portable device. This gel serves as the mediator between the contaminated environment and the operator, trapping fine and ultrafine particles without requiring complex robotic systems or extensive PPE protocols

Inventive Principle:
Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If robotic decontamination and closed systems are used, then exposure prevention is improved, but adaptability to one-off and localized work decreases

Engineering Contradiction:
Improveexposure to fine and ultrafine particlesVSAvoidadaptability to occasional and localized work
Core Design Contradiction:
Object-affected harmful factorsVSAdaptability or versatility

Solution Approach 1:

The portable capture device is designed to be dynamically positionable and reconfigurable at different work locations. The device can be moved and adapted to various maintenance scenarios, providing the flexibility needed for one-off and localized work while maintaining effective particle capture

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The device employs flexible structural elements that allow it to adapt to different work configurations and locations. This flexibility enables the system to be deployed for occasional and localized maintenance tasks rather than requiring fixed, rigid closed systems

Inventive Principle:
Principle #30Flexible shells and thin films

3Object-affected harmful factors

If deep impregnation and wetting techniques are used, then particle capture is improved, but material damage and operational difficulty increase

Engineering Contradiction:
Improveparticle capture effectivenessVSAvoidease of material handling
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The gel-based capture medium is applied locally within the portable device at the specific work location, rather than requiring widespread wetting or impregnation of surrounding materials. This localized application maintains particle capture effectiveness while avoiding damage to adjacent materials and simplifying operations

Inventive Principle:
Principle #3Local quality

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 safe and efficient one-off and localized maintenance work by creating a confined environment that captures and retains particles, reducing exposure risks and costs, while allowing secure risk measurement and compliance with regulatory conditions.

Implementation Method 1

The gel (4) of the capture and retention device (1) forms with the reservoir (3) a hermetic assembly that can be modulated in volume and size to adapt to the work envisaged. By capturing with the gel (4) fine and/or ultrafine particles generated by the tool (7), the invention seeks to ensure that this capture is carried out without pollution of the external environment

Methodology Applied
Scientific EffectAdsorption: Adsorption

Implementation Method 2

The flexibility of this plastic material makes it possible to ensure, by elastic effect, a relative tightness with respect to a content and to a tool (7)

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP3253521A1Means for preventing exposure to fine and/or ultrafine particles
Publication Date: 2017.12.13 BOSLER FREDERIC

AI summary

The invention relates to a prevention means characterised in that it is a collection and retention means for receiving fine and/or ultrafine particles at the source of emission of the fine and/or ultrafine particles, said collection and retention device being designed for a single or specific use for specific and localised standardisation, repair or maintenance work.