Stacked Nanoparticle Exposure Modules for Toxicity Testing
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Solution Overview
Problem
Current inhalation toxicity testing devices for nanoparticles require multiple chamber housings and significant resources, making it impractical for small-scale laboratories to conduct diverse and accurate testing due to high costs and space inefficiency, especially when testing nanoparticles at various concentration levels.
Innovation Solution
A single chamber housing with multiple particle exposure modules stacked inside, each with independent spaces and connected to separate particle supply units, allowing for the exposure of laboratory animals to different nanoparticle concentrations without mixing, enabling efficient and diverse testing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple chamber housings are used for testing different nanoparticle concentration levels, then testing accuracy and diversity are improved, but device complexity and space requirements increase
Solution Approach 1:
The patent combines multiple independent particle exposure modules (each capable of testing different nanoparticle concentration levels) into a single integrated chamber housing. This allows multiple concentration level tests to be conducted simultaneously in one device, eliminating the need for multiple separate chamber housings while maintaining testing accuracy and diversity.
Solution Approach 2:
The chamber housing is segmented into multiple independent particle exposure modules, each with its own particle supply unit and exposure chamber. This segmentation allows each module to independently test different nanoparticle concentration levels while being part of a unified system, thus improving testing diversity without proportionally increasing overall device complexity.
2Adaptability or versatility
If multiple chamber housings are used for testing different nanoparticle concentration levels, then testing diversity is improved, but space efficiency deteriorates
Solution Approach 1:
Multiple particle exposure modules are merged into a single chamber housing structure, allowing diverse nanoparticle concentration level tests to be conducted within one compact unit. This vertical integration significantly improves space efficiency compared to using multiple separate chamber housings, while maintaining the ability to test across different concentration levels.
Solution Approach 2:
The particle exposure modules are arranged vertically stacked within the chamber housing rather than horizontally dispersed. This dimensional reorganization allows multiple testing zones to occupy overlapping spatial footprints, dramatically improving space efficiency while preserving testing diversity across different concentration levels.
3Measurement precision
If multiple chamber housings are used for testing different nanoparticle concentration levels, then testing accuracy is improved, but cost increases
Solution Approach 1:
The patent merges multiple particle supply units and exposure modules into a single integrated system, reducing the total number of components needed compared to using multiple separate chamber housings. This consolidation lowers manufacturing costs and maintenance expenses while preserving the capability to conduct accurate tests across multiple nanoparticle concentration levels.
Solution Approach 2:
Each particle exposure module within the chamber housing is designed as a universal unit that can independently handle different nanoparticle types and concentration levels. This multi-functionality allows a single device to replace multiple specialized chamber housings, reducing overall system cost while maintaining testing accuracy across diverse nanoparticle conditions.
Data Source
AI summary
The present invention relates to an inhalation toxicity testing chamber device for nanoparticles having a plurality of concentrations. The present invention provides an inhalation toxicity testing chamber device for nanoparticles having a plurality of concentrations, which: can supply nanoparticles having different concentrations to particle exposure modules by stacking a plurality of particle exposure modules inside a single chamber housing and by allowing each particle exposure module so as to form an independent space from each other; can perform inhalation toxicity testing of nanoparticles having a plurality of concentrations through a single chamber housing by being capable of exposing the test animals put into each particle exposure module to nanoparticles having different concentrations; can easily perform inhalation toxicity tests of nanoparticles in a small scale laboratory etc. by improving the overall space efficiency as well as reducing the test cost; and can easily perform more diverse and accurate inhalation toxicity tests on nanoparticles by selectively allowing a plurality of particle exposure modules to be in communication with each other or to be formed as an independent space, according to a user's needs, thereby variably applying the space of the particle exposure module without changing the arrangement of the particle exposure module.