Disinfestation Article With Internal Voids For Long-Lasting Pesticide Release

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Solution Overview

Problem

Traditional pest control methods using insecticide sprays are ineffective due to limited longevity and toxicity, posing environmental and health risks, especially to children and pets.

Innovation Solution

A water-resistant disinfestation article with a polymer base, external and internal voids, and channels that allow pesticidal compounds to be exposed and replenished, ensuring prolonged pest control without adhering to mammalian skin or being toxic.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If insecticide sprays are applied repeatedly to maintain pest control effectiveness, then the longevity of pest control is improved, but the environmental pollution and health risks increase

Engineering Contradiction:
Improvelongevity of pest controlVSAvoidenvironmental pollution and health risks
Core Design Contradiction:
Duration of action of moving objectVSObject-generated harmful factors

Solution Approach 1:

The device segments the pest control system into multiple independent voids (internal and external) that can be sequentially activated. Pesticidal compounds are stored in isolated internal voids and released through channels only when needed, rather than being continuously exposed. This segmentation allows the system to maintain long-term effectiveness without continuous environmental contamination.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The device applies pesticidal compounds locally only where and when needed, rather than through widespread spraying. The compounds are confined to specific voids and released through controlled channels at the point of pest contact, reducing overall environmental exposure while maintaining effective pest control duration.

Inventive Principle:
Principle #3Local quality

2Duration of action of stationary object

If pesticidal compounds are continuously exposed to the environment for long-lasting effect, then the duration of pest control is improved, but the toxicity to mammals including children and pets increases

Engineering Contradiction:
Improveduration of pest controlVSAvoidtoxicity to mammals
Core Design Contradiction:
Duration of action of stationary objectVSObject-affected harmful factors

Solution Approach 1:

The harmful pesticidal compounds are extracted from the external environment and stored safely within isolated internal voids. The compounds are only introduced to the external environment when pests contact the device, separating the storage of toxic substances from their controlled application, thereby extending duration without increasing mammalian toxicity.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The device acts as an intermediary between the pesticidal compounds and the environment. The compounds remain sequestered in internal voids until pests trigger their release through channels, preventing direct and continuous exposure of mammals to toxins while maintaining long-term pest control capability.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If insecticide sprays are applied frequently to maintain effectiveness, then the pest control efficacy is improved, but the complexity of application and supervision increases

Engineering Contradiction:
Improvepest control efficacyVSAvoidapplication and supervision complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The device is designed to function autonomously without requiring repeated human application or supervision. Once installed, it automatically releases pesticidal compounds when pests contact the external voids, maintaining reliable efficacy without the complexity of frequent reapplication and supervision that spray systems require.

Inventive Principle:
Principle #25Self-service

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 article provides long-lasting, non-toxic pest control by releasing pesticidal compounds effectively, even under environmental exposure, ensuring safety for humans and pets while maintaining efficacy.

Implementation Method 1

The pesticidal compound disposed in the external voids is exposed to a surface of the base

Methodology Applied
Scientific EffectDiffusion: Diffusion

Implementation Method 2

A water resistant disinfestation article with a polymer base, external and internal voids, and channels that allow pesticidal compounds to be exposed and replenished

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Data Source

PatentEP3624585B1Long-lasting disinfestation article and method of manufacture thereof
Publication Date: 2022.03.09 TAN KS
  • EP3624585B1 patent drawingFigure 1~2A
  • EP3624585B1 patent drawingFigure 2B~2C
  • EP3624585B1 patent drawingFigure 3~4

AI summary

A disinfestation article includes a base, external voids and internal voids formed in the base, pesticidal compound disposed in the external and internal voids. The pesticidal compound disposed in the external void being exposed to a surface of the base. The article may further comprise channels connecting one of the internal voids to one of the external voids. The pesticidal compound contains pesticidal particles selected from pyrethroid family or the like. Also claimed is a method of manufacturing which includes mixing pesticidal particles into a molten polymer material to form a mixture, injecting the mixture into a mold to form a molded part, and cooling the molded part to form said disinfestation article.