Nested Rupturable Container Assembly for Controlled Substance Mixing
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Solution Overview
Problem
Existing container designs for dispensing mixed flowable substances face limitations due to material incompatibility and compatibility issues, which restrict the effective mixing and dispensing of separate substances stored in separate compartments.
Innovation Solution
A tandem packaging container assembly featuring a first container with a rupturable weld seam and a second container with a fusion-molded seam, allowing for selective opening and mixing of substances, with options for materials like plastic ampoules and glass ampoules surrounded by non-absorbent netting for enhanced compatibility and controlled dispensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate containers are used to store flowable substances, then material compatibility and compatibility issues are avoided, but the complexity of the container assembly increases
Solution Approach 1:
The patent implements nesting by placing the second container inside the first container, with the second container positioned within the interior of the first container. This nested arrangement allows two separate substances to be stored in a single compact assembly, maintaining material compatibility while reducing overall device complexity through space-efficient integration.
Solution Approach 2:
The patent applies segmentation by dividing the container assembly into two separate containers, each holding a different flowable substance. The first container and second container are distinct segments that can be independently manufactured and sealed, allowing each substance to be stored in its own compatible container while maintaining overall system organization.
2Measurement precision
If containers are designed with rupturable seams for controlled mixing, then the precision of mixing control is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The patent applies local quality by creating a specific localized feature (the rupturable seam or fusion-molded seam) at a precise location on the container. This localized weakened section is intentionally fabricated with specific characteristics (such as reduced thickness or altered material properties) to enable controlled rupture at a predetermined point, achieving precise mixing control while concentrating manufacturing precision requirements at only the critical seam location rather than throughout the entire container.
Solution Approach 2:
The patent implements preliminary action by pre-fabricating the rupturable seams or fusion-molded seams during the container manufacturing process. These seams are created in advance with specific structural characteristics that enable controlled rupture at the desired moment, allowing precise mixing control to be built into the container design before use.
3Reliability
If glass ampoules are used for the second container, then the purity of the flowable substance is improved, but the ease of operation decreases due to fragility
Solution Approach 1:
The patent applies the intermediary principle by introducing a protective netting layer between the glass ampoule and the external environment. This netting acts as a mediator that protects the fragile glass ampoule during handling and storage, preventing breakage while allowing the glass material to maintain its purity benefits for substance containment.
Solution Approach 2:
The patent implements composite materials by combining glass ampoule with protective netting in a composite structure. The glass provides chemical inertness and purity for substance containment, while the netting provides mechanical protection and handling ease, creating a composite system that leverages the advantages of both materials.
Data Source
AI summary
A container assembly has a first container that operably houses a second container. The first container is configured to hold a first flowable substance, and the second container is configured to hold a second flowable substance. The second container is rupturable, preferably by manipulation through the first container, wherein the second flowable substance can mix with the first flowable substance to form a mixture. The first container is also rupturable to dispense the mixture therefrom.