Multi-Chamber Instrument Container Pressure-Driven Deactivation

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Solution Overview

Problem

Existing liquid microbial deactivation systems face challenges in effectively deactivating instruments with internal pathways, as they require precise connector selection and struggle to reach external surfaces, leading to inefficiencies in the deactivation process.

Innovation Solution

A multi-chamber instrument container with flow pathways between chambers, where a pressure differential is maintained to induce liquid microbial deactivation fluid to flow through internal pathways of instruments, eliminating the need for direct connector connections and allowing simultaneous processing of instruments of varying dimensions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If connectors are directly connected to ports of lumened instruments to flow deactivation fluid, then fluid can be pumped through internal pathways, but it requires precise connector selection and cannot effectively reach external surfaces

Engineering Contradiction:
Improvemicrobial deactivation effectivenessVSAvoidconnector selection and arrangement
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The container is divided into multiple chambers (first chamber, second chamber, third chamber) separated by dividing walls with flow pathways. This segmentation allows different regions to serve different functions: one chamber receives deactivation fluid while other chambers process instruments, eliminating the need for direct connector connections to instrument ports.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary container system with multiple chambers and flow pathways between them. Instead of directly connecting conduits to instrument ports, the deactivation fluid is circulated through the container chambers, which act as intermediaries to deliver fluid to instruments placed within the chambers.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If connectors are used to deliver deactivation fluid to instrument ports, then internal pathways can be flushed, but external surfaces engaged with connectors cannot be effectively treated

Engineering Contradiction:
Improvemicrobial deactivation completenessVSAvoidaccess to external surfaces
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The container is segmented into multiple chambers that can accommodate instruments in different orientations and positions. This allows deactivation fluid to access external surfaces of instruments from multiple directions, ensuring complete coverage of all surfaces including those that would be obscured by connector connections.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The multi-chamber design adds spatial dimensions to the deactivation process. Instruments can be positioned in three-dimensional space within chambers, allowing fluid to approach external surfaces from multiple angles and directions, ensuring comprehensive coverage of all instrument surfaces.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Adaptability or versatility

If a single-chamber container is used, then the structure is simple, but instruments of varying dimensions cannot be simultaneously processed effectively

Engineering Contradiction:
Improveprocessing of varying instrument dimensionsVSAvoidcontainer structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The container is divided into multiple chambers of different sizes and configurations. Each chamber can accommodate instruments of specific dimensions, allowing simultaneous processing of various instrument types and sizes. The dividing walls with flow pathways maintain structural integrity while enabling fluid circulation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The multi-chamber container serves multiple functions: it can simultaneously process different types of instruments with varying dimensions, maintain pressure differentials across chambers, and provide multiple flow pathways for comprehensive deactivation. This universal design replaces the need for multiple separate processing stations.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Productivity

If pressure differential is maintained between chambers, then fluid flow through internal pathways is induced, but the system requires sophisticated pressure control

Engineering Contradiction:
Improvefluid flow efficiencyVSAvoidpressure control system
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The container is divided into pressure zones using dividing walls with controlled flow pathways. Pressure differentials are maintained between adjacent chambers to induce fluid flow through instrument lumens. The segmentation creates natural pressure gradients that drive flow without requiring complex external pressure control systems.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The pressure differential system is designed to be self-regulating through the container structure itself. The dividing walls with flow pathways and the arrangement of chambers create automatic pressure balance mechanisms that maintain flow without requiring external control systems, making the system self-sufficient.

Inventive Principle:
Principle #25Self-service

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 solution ensures thorough microbial deactivation of instruments by maintaining a pressure differential to drive fluid flow through internal pathways, improving efficiency and versatility in processing different instrument sizes without the need for complex connector arrangements.

Implementation Method 1

a pressure differential is maintained between the chambers to induce liquid microbial deactivation fluid to flow through internal pathways of an instrument located therein

Methodology Applied
Scientific EffectPressure differential: Pressure Gradient

Data Source

PatentEP2497439B1Instrument container having multiple chambers with flow pathways therebetween
Publication Date: 2013.06.05 AMERICAN STERILIZER CO
  • EP2497439B1 patent drawingFigure 1
  • EP2497439B1 patent drawingFigure 2
  • EP2497439B1 patent drawingFigure 3

AI summary

A multi-chamber instrument container for microbially deactivating medical, dental, veterinary and mortuary instruments and articles. A pressure differential between chambers causes fluid flow therebetween, thus flowing fluid through internal passages of instrument extending between the chambers.