Sterilization Packaging With Opaque-Transparent Surfaces for Steam Autoclaving
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Solution Overview
Problem
Existing sterilization packaging materials are not suitable for high-temperature steam autoclaving due to low melting points or glass transition temperatures, leading to material weakness and steam permeability issues, which compromise the effectiveness and durability of sterilization processes.
Innovation Solution
A sterilization packaging design incorporating a combination of opaque and substantially transparent materials, where the opaque surfaces are made from polyolefin or cellulose and the transparent surfaces from polypropylene or polyethylene, with controlled surface area ratios and shapes to allow steam penetration and visual inspection, while maintaining structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If existing sterilization packaging materials are used, then the packaging is transparent for visual inspection, but the materials have low melting points and high steam permeability at high temperatures
Solution Approach 1:
The packaging uses different materials for different portions: the first major surface and second major surface are substantially opaque for steam retention, while a third major surface includes a transparent portion for visual inspection. This local differentiation allows each area to perform its specific function optimally.
Solution Approach 2:
The packaging combines multiple materials with different properties: polyolefin or cellulose for opaque surfaces providing heat resistance and steam retention, and polypropylene or polyethylene for the transparent portion providing visual inspection capability while maintaining adequate temperature resistance.
2Ease of operation
If existing sterilization packaging materials are used, then the packaging allows visual inspection, but the materials show material weakness at high temperatures
Solution Approach 1:
The packaging structure assigns different material properties to different surfaces: the first and second major surfaces use heat-resistant opaque materials for structural strength, while the third major surface includes a transparent portion for visual inspection. This localized material assignment resolves the contradiction between inspection capability and structural integrity.
Solution Approach 2:
The packaging employs composite construction with heat-resistant materials (polyolefin, cellulose) forming the primary structural surfaces for strength, combined with polypropylene or polyethylene for the transparent inspection portion, achieving both visual access and high-temperature structural stability.
3Device complexity
If existing sterilization packaging materials are used, then the packaging is simple in structure, but the packaging fails to maintain durability during high-temperature sterilization
Solution Approach 1:
The packaging uses composite materials strategically assigned to different surfaces: heat-resistant polyolefin or cellulose for the first and second major surfaces providing structural durability, and polypropylene or polyethylene for the transparent third surface providing inspection capability. This composite approach achieves high-temperature durability without excessive structural complexity.
Data Source
AI summary
Various aspects disclosed relate to a sterilization packaging. The sterilization packaging includes a first major surface that is substantially opaque. The sterilization packaging further includes a second major surface. The sterilization packaging further includes an opaque portion and a substantially transparent portion.