Sterilization Packaging with Peripheral Gas Permeable Zones
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Solution Overview
Problem
Conventional sterile packaging requires a large force to open due to the central positioning of the gas permeable surface, resulting in a small opening and potential damage during removal of the product.
Innovation Solution
A packaging design featuring two main surfaces with a gas permeable material for sterilization and a gastight material for strength, where the gas permeable material is releasably connected to the gastight material at peripheral edges, allowing for a large opening and easy product removal, and incorporating a handgrip for safe carrying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the gas permeable surface is positioned centrally in conventional packaging, then sterilization is effective, but a large force is required to open the packaging and only a small opening is created
Solution Approach 1:
The packaging is divided into distinct functional zones: a central gas permeable sterilization zone and peripheral gastight opening zones. The releasable connection at peripheral edges allows the opening to be separated from the central sterilization area, enabling easy access without compromising sterilization integrity.
Solution Approach 2:
The opening mechanism transitions from a central radial tear to a peripheral edge-based separation. By positioning the releasable connection at the peripheral edges rather than the center, the opening action occurs at the boundaries of the packaging, creating a large access area without requiring forceful central tearing.
2Reliability
If the gas permeable material is positioned centrally, then sterilization is achieved, but the packaging structure may tear or damage during product removal
Solution Approach 1:
The packaging structure is segmented into a central sterilization compartment and peripheral structural support zones. The gastight material at the periphery provides structural reinforcement, while the central gas permeable material maintains sterilization function without bearing the mechanical stress of opening and closing operations.
Solution Approach 2:
Different material properties are assigned to different locations: the peripheral edges use gastight material with high structural strength to withstand mechanical operations, while the central area uses gas permeable material optimized for sterilization. This local differentiation ensures both sterilization effectiveness and structural integrity during handling.
3Ease of operation
If a large opening is created for product removal, then easy access is achieved, but the packaging requires more material and may compromise sterilization integrity
Solution Approach 1:
The packaging opening is segregated from the sterilization barrier. The releasable connection at the peripheral edges allows a large opening to be created in the gastight peripheral zone without compromising the central gas permeable sterilization barrier. The sterilization integrity is maintained in the central zone while the periphery provides access.
Solution Approach 2:
The peripheral gastight material acts as an intermediary zone that facilitates easy opening and closing operations while the central gas permeable material maintains the sterilization barrier. The releasable connection at the periphery serves as a mediator that enables access without breaching the sterilization integrity of the central compartment.
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
Enables easy removal of products from packaging without requiring excessive force, maintaining structural integrity for safe transport and ensuring effective sterilization through a combination of gas permeable and gastight materials.
Implementation Method 1
a gas permeable material part of a pore size that locks out harmful organisms
Implementation Method 2
a gas permeable material part of a pore size that locks out harmful organisms
Data Source
AI summary
Packaging for sterile packaging a product, comprising a bag shaped body with two main surfaces that are mutually gas tight at at least part of their peripheral edges comprising a gas non-permeable material. At least part of the main surfaces comprises a gas permeable material part of a pore size that locks out harmful organisms and comprises a gas tight material part that is positioned between two peripheral edges that extend in a longitudinal direction and between the gas permeable material part and a peripheral edge that extends in a transverse direction.