Double Packing Materials for Infusion Solutions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Polypropylene packaging for infusion solutions is prone to tearing and deterioration due to weak thermal resistance and susceptibility to sunlight or heat, posing risks during storage and distribution.
Innovation Solution
Primary packing with polypropylene and secondary vacuum sealing with an aluminum foil-containing material enhances thermal resistance and preservation properties, preventing damage from external forces and light exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If polypropylene packing material is used for infusion solution, then smoothness and flexibility are improved, but thermal resistance and strength are weakened causing tearing and bursting during storage
Solution Approach 1:
The patent uses a composite structure consisting of an inner polypropylene layer providing smoothness and flexibility, and an outer aluminum foil layer providing thermal resistance and strength. This composite material approach allows the packaging to simultaneously achieve the smooth handling characteristics of polypropylene and the high thermal resistance of aluminum foil, resolving the contradiction between ease of operation and strength.
2Ease of operation
If polypropylene packing material is used, then flexibility and lightness are improved, but resistance to sunlight and heat exposure is weakened leading to deterioration
Solution Approach 1:
The dual-layer composite structure combines polypropylene's flexibility with aluminum foil's resistance to sunlight and heat. The inner polypropylene layer maintains flexibility and contact with the infusion solution, while the outer aluminum foil layer acts as a barrier against harmful environmental factors, thus resolving the contradiction between flexibility and resistance to harmful factors.
Solution Approach 2:
The aluminum foil layer serves as an intermediary protective barrier between the infusion solution in the polypropylene bag and harmful external factors such as sunlight and heat. This mediator layer absorbs or reflects harmful radiation and thermal energy, protecting the contents while allowing the inner polypropylene layer to maintain its flexible characteristics.
3Strength
If glass bottle with rubber plug is used, then strength and thermal resistance are improved, but handling difficulty and breakability increase
Solution Approach 1:
The patent employs a flexible polypropylene bag with an outer aluminum foil protective layer, replacing the rigid glass bottle structure. This flexible shell approach maintains the thermal resistance and strength benefits through the aluminum layer while providing the ease of handling, light weight, and break resistance characteristic of flexible polymer packaging, thus resolving the contradiction between strength and ease of operation.
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 double packing method ensures high thermal resistance and excellent preservation, effectively protecting infusion solutions, including expensive contrast media, from damage and deterioration during long-term storage and distribution.
Implementation Method 1
a material 20 including an aluminum foil
Implementation Method 2
high thermal resistance
Implementation Method 3
secondarily vacuum packed
Data Source
AI summary
The double packing materials according to the present invention which primarily packs the infusion solution with a polypropylene packing material and secondarily vacuum packs and hermetically seals the packed polyethylene packing material with a material including an aluminum foil ensures safety of the content therein from light and has high thermal resistance and excellent preservation properties that resists to the damage and tearing by external force on long-term storage despite that it is not stored in dark place, and thus is very useful as the packing material for storing expensive infusion solution such as the contrast medium which is radiological diagnostic solution.