Sterilization Packaging With Opaque-Transparent Autoclave Structure
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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 sterilization effectiveness and durability.
Innovation Solution
A sterilization packaging design featuring a combination of opaque and transparent surfaces, where the opaque surfaces are made of polyolefin or cellulose materials and the transparent surfaces are made of polypropylene or polyethylene, allowing for visual inspection and steam penetration while maintaining structural integrity at autoclaving temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If existing sterilization packaging materials are used, then the packaging can be manufactured easily, but the materials have low melting points or glass transition temperatures causing material weakness and steam permeability at autoclaving temperatures
Solution Approach 1:
The packaging combines multiple materials with different properties: an opaque outer layer made of heat-resistant material and a transparent inner layer made of heat-sensitive material. This composite structure allows the packaging to withstand autoclaving temperatures while maintaining visibility and structural integrity.
2Reliability
If opaque packaging materials are used, then the packaging maintains durability at high temperatures, but visual inspection of instruments is not possible
Solution Approach 1:
The packaging features a transparent portion that allows visual inspection of the instruments inside. This local transparency is strategically positioned to provide viewing capability while the rest of the packaging remains opaque to maintain heat resistance and structural integrity during autoclaving.
3Ease of operation
If transparent packaging materials are used, then visual inspection is enabled, but the materials have low melting points causing steam permeability and structural failure
Solution Approach 1:
The packaging is divided into distinct functional zones: an opaque outer layer that provides heat resistance and steam retention, and a transparent inner layer that enables visual inspection. This segmentation allows each layer to perform its specific function without compromising the other.
4Reliability
If the packaging is made fully opaque, then steam retention and heat resistance are improved, but confirmation of instrument dryness cannot be visually verified
Solution Approach 1:
A transparent portion is incorporated into the packaging structure to allow visual inspection of the instruments inside. This enables confirmation of instrument dryness and proper sterilization while the opaque portions maintain steam retention and heat resistance properties.
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.