Medical Container Interstice Active Insert Moisture Absorption
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Solution Overview
Problem
Existing containers for storing moisture-sensitive medical and pharmaceutical products face challenges in maintaining a moisture-free environment due to inevitable moisture entry through diffusion, permeability, and repeated opening/closing, which affects the shelf life and quality of the products.
Innovation Solution
A container design featuring a plastic body with an active insert that has a significant empty interstice between its side wall and the container body, allowing for enhanced air and moisture circulation, which improves the absorption kinetics of the active agent, maximizing the absorption capacity and storage space while maintaining product quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the active insert is placed in direct contact with the container body wall, then the structural stability is improved, but the absorption capacity is reduced due to limited air circulation
Solution Approach 1:
The patent introduces an empty interstice that segments the space between the active insert and container body, creating distinct zones for air circulation and active substance exposure. This segmentation allows moisture-laden air to flow through the interstice and contact the active substance more effectively, increasing absorption capacity without requiring complex structural modifications
Solution Approach 2:
The empty interstice creates a three-dimensional circulation pathway around the active insert, transforming the absorption process from a surface-level contact to a volumetric interaction. Moisture can approach the active substance from multiple directions through the interstice, significantly enhancing the effective absorption capacity
2Productivity
If the active substance is mixed into polymer material, then the structural integrity is improved, but the absorption kinetics are slowed due to limited contact with external moisture
Solution Approach 1:
The active insert is designed with a porous structure that allows moisture to penetrate through the material matrix. The porosity provides numerous internal surfaces for moisture absorption while maintaining structural integrity. The empty interstice further enhances this by allowing external moisture to rapidly reach the porous structure
Solution Approach 2:
The patent employs a composite structure combining the active substance embedded in a polymer matrix (maintaining structural integrity) with an empty interstice (enhancing absorption kinetics). This composite design allows the polymer to provide mechanical strength while the interstice facilitates rapid moisture transport to the active substance
3Object-affected harmful factors
If the container is made moisture-proof with thermoplastics, then the protection against external moisture is improved, but moisture entry through diffusion and permeability cannot be completely prevented
Solution Approach 1:
The empty interstice with the active substance creates a preliminary defense mechanism that actively removes moisture before it can reach and affect the stored products. This proactive moisture removal compensates for the inevitable diffusion and permeability through the moisture-proof container walls
Solution Approach 2:
The patent converts the harmful effect of moisture diffusion through the container walls into a beneficial process by positioning the active substance in the empty interstice where it can directly intercept and absorb the diffusing moisture, transforming the unavoidable moisture entry into an opportunity for active moisture management
4Quantity of substance
If the active insert occupies more space, then the absorption capacity is increased, but the storage volume for products is reduced
Solution Approach 1:
The empty interstice allows the active insert to occupy slightly more space than traditionally designed, as the interstice itself becomes part of the functional absorption system. The additional space dedicated to the interstice and active insert results in proportionally greater moisture absorption capacity that compensates for the reduced product storage volume
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 container effectively extends the shelf life of moisture-sensitive products by rapidly absorbing moisture and gaseous substances, ensuring the physical and chemical integrity of the products during storage, even during cycles of opening and closing.
Implementation Method 1
an active agent such as a desiccant, for example silica gel, calcium chloride, a molecular sieve, other drying agents
Implementation Method 2
the entry of moisture into these containers is inevitable, either by diffusion or by opening and closing the container
Data Source
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AI summary
The invention pertains to a container (100, 300) for storing medical and/or pharmaceutical products. The container includes a plastic container body (102) including a side wall (202), a base (204) and an opening (206) defining the storage volume (108), an active insert (600, 600'), placed inside the container body (102) and including a tubular side wall (602) of length L, extending from a lower extremity (606) to an upper extremity (605), and an empty interstice (12) between the side wall of the active insert and the side wall of the container body. This container is an improved container for the storage of medical and/or pharmaceutical products.