Injector Apparatus With Frangible Seal Mixing Chamber

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Solution Overview

Problem

Existing injection apparatuses face challenges in effectively mixing and delivering two-part injectants, such as medications or antidotes, where a dry component and a liquid component need to be combined and administered quickly and efficiently, often requiring complex mechanisms and prone to premature mixing or failure in urgent situations.

Innovation Solution

A multi-stage injection apparatus with a mixing chamber, impermeable membranes, and frangible seals that separate and merge chambers to form a liquid injection solution, allowing controlled mixing and administration via injection needles, utilizing a spring-loaded mechanism to rupture seals and ensure precise delivery.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the dry component and liquid component are stored separately in different chambers, then the stability and shelf life of the injectant are improved, but the device complexity increases due to the need for multiple chambers and sealing mechanisms

Engineering Contradiction:

Improvestability of injectantVSAvoiddevice complexity

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The device is divided into separate chambers: a first chamber for the dry component and a second chamber for the liquid component, separated by a frangible seal. This segmentation allows independent storage and stabilization of each component while maintaining device functionality through controlled interaction at the seal interface.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The frangible seal acts as an intermediary barrier between the dry and liquid components. It maintains separation during storage and transport, then can be deliberately ruptured to allow mixing. The seal serves as a controlled interface that mediates between the separated components when ready for use.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If a complex mixing mechanism is used to ensure proper mixing of two-part injectants, then the mixing reliability is improved, but the ease of operation deteriorates and the device becomes more difficult to use in emergency situations

Engineering Contradiction:

Improvemixing reliabilityVSAvoidease of operation

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The system uses the natural interaction between the dry component and liquid component upon seal rupture to achieve mixing. The user simply needs to rupture the seal, and the components automatically mix without requiring complex mechanical mixing mechanisms. The chemistry itself provides the mixing action.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The complex mixing mechanism is extracted and replaced by a simple frangible seal rupture. The mixing function is transferred from a mechanical system to a chemical system, eliminating the need for pumps, motors, or complex valve mechanisms while maintaining mixing reliability.

Inventive Principle:

Principle #2Taking out (Extraction)

3Speed

If the chambers are designed to merge quickly upon seal rupture, then the speed of injectant formation is improved, but the manufacturing precision requirements increase to ensure proper sealing and rupture timing

Engineering Contradiction:

Improvespeed of mixingVSAvoidmanufacturing precision

Core Design Contradiction:

SpeedVSManufacturing precision

Solution Approach 1:

The frangible seal is designed with specific mechanical properties (strength, thickness, material composition) that allow it to remain intact during storage and transport, then rupture quickly and reliably when subjected to controlled stress. By optimizing the seal's physical parameters, rapid mixing is achieved without requiring extremely tight manufacturing tolerances on the chamber geometry.

Inventive Principle:

Principle #35Parameter changes

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 efficient mixing and administration of two-part injectants by ensuring separation in storage, controlled mixing, and precise delivery through the rupture of seals, maintaining the efficacy of the injectant and simplifying the administration process, particularly useful for emergency treatments like allergic reactions or venom exposure.

Implementation Method 1

The dry component and the liquid component are separated by the impermeable membrane in the storage state and merged in the mixing state

Methodology Applied

Scientific EffectPhysical barrier separation: Physical Containment

Implementation Method 2

The first frangible seal is selectively ruptured allowing the dry component to dissolve in the liquid component forming the injectant

Methodology Applied

Scientific EffectDissolution: Solvation

Data Source

PatentUS20240017010A1Injector apparatus for two-part injectant

Publication Date: 2024.01.18 GRAND VALLEY STATE UNIVERSITY

AI summary

An injection apparatus for administering an injectant includes a mixing chamber having an impermeable membrane disposed therein, a first chamber containing a dry component, and a second chamber containing a liquid component. The dry component and the liquid component combine to form a liquid injection solution in the mixing chamber. The mixing chamber is configured to retain the liquid injection solution formed by a combination of the dry component and the liquid component. The injection apparatus is selectively configured in a plurality of states including a storage state and a mixing state.