Sterilization Container Locking Mechanism for Replaceable Filter Assembly

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Solution Overview

Problem

Existing sterilization containers lack a convenient method for replacing filter media, which is essential for maintaining air filtration quality after reuse.

Innovation Solution

The sterilization container design includes filter retaining plates, clips, seals, and a locking mechanism that allows for easy removal and replacement of filter assemblies, ensuring a clean air transfer and maintaining sterility during and after the sterilization process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If filter assemblies are permanently integrated into the sterilization container, then the container structure is simple and robust, but the filter media cannot be replaced to ensure clean air transfer

Engineering Contradiction:
Improveair filtration qualityVSAvoidcontainer structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The filter assembly is divided into separate components: a filter holder that attaches to the container and removable filter media that can be replaced. This segmentation allows the filter media to be replaced independently while maintaining a simple container structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The filter assembly incorporates a dynamic attachment mechanism with clips and locking features that allow the filter holder to be easily attached and detached from the container, enabling filter media replacement without permanent integration.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If filter assemblies are designed to be removable for replacement, then the filter media can be replaced to maintain sterility, but the container structure becomes more complex

Engineering Contradiction:
Improvefilter replacementVSAvoidcontainer structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The filter assembly includes self-locking clips and retention features that automatically secure the filter holder to the container without requiring additional fastening steps or complex mechanisms, enabling easy user operation.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The attachment mechanism combines multiple functions (securing, sealing, and positioning) into an integrated filter holder assembly that attaches to the container in a single operation, reducing overall system complexity while improving ease of filter replacement.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If the container is designed for easy disassembly to replace filters, then filter replacement is convenient, but the sealing and sterility maintenance become more difficult

Engineering Contradiction:
Improvefilter assembly removalVSAvoidsterility maintenance
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The filter holder includes pre-integrated sealing elements and gaskets that are positioned before assembly, ensuring that sterility barriers are in place before the filter media is installed or removed, maintaining sterility throughout the replacement process.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

A sealing interface acts as an intermediary between the removable filter holder and the container body, providing a reliable barrier that maintains sterility while allowing easy attachment and detachment of the filter assembly.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

This design enables efficient and sterile reuse of the container by allowing for the easy replacement of filter media, ensuring effective air filtration and maintaining the sterility of medical devices during storage and transportation.

Implementation Method 1

air permeable filter assemblies that allow filtered ambient air to enter and exit the container

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Implementation Method 2

The pan contains holes that permit the passage of air, moist heat/steam, or other autoclave gases into the container

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP3257529B1Rigid sterilization container with a locking mechanism for a replaceable filter assembly
Publication Date: 2024.05.15 GLOBUS MEDICAL INC
  • EP3257529B1 patent drawingFigure 1
  • EP3257529B1 patent drawingFigure 2~3
  • EP3257529B1 patent drawingFigure 4~14

AI summary

Sterilization containers, components, and methods thereof. A locking mechanism is used to secure and release a filter assembly on a sterilization container includes two opposing buttons that, when compressed toward each other, unlock the locking mechanism and, when released, secure the locking mechanism.