Double-Chamber Container for Separated Point-of-Use Mixing

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Solution Overview

Problem

Existing containers fail to maintain two components separately until the point of use, leading to premature mixing and potential degradation or loss of effectiveness.

Innovation Solution

A double chamber container design with a first chamber having a stopper and a cover, and a second chamber with a plunger, allowing separate storage of two matters until use, which mix upon depressing the plunger, and can be sealed ultrasonically or with a luer-lock tip.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If components are stored in a single container, then device complexity is reduced, but premature mixing occurs leading to degradation

Engineering Contradiction:

Improvecontainer structureVSAvoidcomponent stability

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The container is divided into two separate chambers (first chamber and second chamber) that are coupled together. The first chamber holds the first component and the second chamber holds the second component, physically separating them to prevent premature mixing while maintaining a unified device structure.

Inventive Principle:

Principle #1Segmentation

2Reliability

If components are mixed at the point of use, then effectiveness is maintained, but device complexity increases

Engineering Contradiction:

Improvecomponent effectivenessVSAvoidcontainer structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The two components are pre-loaded into separate chambers during manufacturing, prepared and sealed in their respective states. The mixing action is deferred until the point of use when the plunger is depressed, allowing components to be ready for immediate mixing without premature reaction.

Inventive Principle:

Principle #10Preliminary action

3Ease of manufacture

If a simple single-chamber container is used, then ease of manufacture is improved, but separate component storage is lost

Engineering Contradiction:

Improvecontainer assemblyVSAvoidcomponent separation

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The second chamber is positioned within or adjacent to the first chamber in a nested configuration. The plunger extends through the stopper of the first chamber, allowing the second chamber to be integrated into the overall structure while maintaining separate component storage capability.

Inventive Principle:

Principle #7Nested doll (Nesting)

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

Ensures components remain separate until use, preventing premature mixing and maintaining effectiveness, with options for single or multi-use and compliance with medical grade standards.

Implementation Method 1

The first and second chambers are preferably coupled together with an ultrasonic seal.

Methodology Applied

Scientific EffectUltrasonic sealing: Ultrasonic Vibration

Data Source

PatentUS12383682B2Double chamber device for point of use mixing

Publication Date: 2025.08.12 INVENTPRISE INC

AI summary

Disclosed is a double chamber container. The first chamber comprises a stopper coupled to a first end and a cover coupled to a second end. The second chamber comprises a plunger coupled to one end and an open second end. The first chamber is coupled to the second chamber such that the first end of the first chamber is coupled to the second end of the second chamber.