Radiation Shielding Housing for Sterile Article Containment
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Solution Overview
Problem
In existing bacteria treatment mechanisms, the air supply and exhaust ducts outside the electron beam irradiation area are not effectively sterilized, risking re-contamination of sterilized articles with contaminated air.
Innovation Solution
A shielding structure using a housing or container made of lead or a shielding material with a sterile maintaining material, such as a plastic bag, that shields the radiation and secondary radiation, allowing only the exterior to be sterilized while protecting the accommodated object from penetration, and maintaining the internal space in a sterile state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electron beam irradiation area is sterilized using conventional air supply and exhaust ducts, then the articles inside the irradiation area are sterilized, but the ducts themselves remain contaminated and can re-contaminate the sterilized articles
Solution Approach 1:
The housing is divided into two distinct functional zones: an irradiation area for sterilization and a sterile area for protected storage. This segmentation allows the sterilized articles to be isolated from contaminated ducts, preventing re-contamination while maintaining reliable sterilization of the irradiation zone.
Solution Approach 2:
A shielding structure made of lead or equivalent material acts as an intermediary barrier between the contaminated exhaust duct and the sterile housing interior. This shield blocks radiation and secondary radiation from penetrating into the sterile area, allowing the duct to remain outside the irradiation area while preventing harmful radiation from contaminating the protected space.
2Object-affected harmful factors
If shielding material is used to protect the accommodated object from secondary radiation, then the object is protected from radiation damage, but the complexity of the structure increases
Solution Approach 1:
The housing structure serves multiple functions simultaneously: it provides radiation shielding protection, maintains sterile conditions, and defines the irradiation area boundary. By integrating these functions into a single multi-functional housing design, the structure achieves comprehensive protection without proportionally increasing complexity.
Solution Approach 2:
The housing is constructed from composite materials combining lead or lead-equivalent shielding material with sterile maintaining materials. This composite construction achieves both radiation protection and sterile maintenance functions within a unified structure, reducing overall system complexity compared to separate systems.
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 shielding structure reliably sterilizes the exterior of articles and maintains the internal space in a sterile condition, preventing re-contamination and ensuring effective bacteria treatment.
Implementation Method 1
a housing that accommodates an accommodated object therein and is formed of a shielding material that shields the radiation and secondary radiation that has a higher transparency than the radiation and is secondarily generated by the radiation
Implementation Method 2
the articles arranged in an electron beam irradiation area are irradiated with an electron beam from above and below to sterilize the articles
Implementation Method 3
in the electron beam irradiation area, ozone (O3) is generated by oxygen (O2) in the air being irradiated with the electron beam
Data Source
AI summary
A shielding structure of an object sterilized by radiation. The object is a housing that accommodates an accommodated object therein and is formed of a shielding material that shields the radiation and secondary radiation that has a higher transparency than the radiation and is secondarily generated by the radiation, an exterior of the housing is sterilized by the radiation, and the radiation and the secondary radiation do not penetrate through the accommodated object.