Universal Filter Lid for Sterilization Containers

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Solution Overview

Problem

Existing sterilization containers require multiple lids with integrated filters to accommodate different types of filters, leading to inventory management challenges and increased costs, while also posing difficulties in ensuring the materials used can withstand sterilization conditions.

Innovation Solution

A modular lid design with a universal closure system that allows for easy integration and swapping of various filters, including Teflon, valve, and sterile barriers, using materials like aluminum or plastic that can withstand sterilization temperatures, pressures, and durations, along with a self-contained receiving housing and airtight sealing mechanisms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple lids with integrated filters are used to accommodate different types of filters, then filter compatibility is improved, but inventory management complexity and costs increase

Engineering Contradiction:
Improvefilter compatibilityVSAvoidinventory management complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The lid is designed with a universal filter holder that can accommodate multiple types of filters (Teflon, valve, sterile barriers) through a standardized interface. The filter holder includes a recessed seating area and retaining structure that works with various filter geometries, allowing a single lid design to serve multiple filter types rather than requiring dedicated lids for each filter variety.

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

Solution Approach 2:

The filtering system is divided into separate modular components: the lid, the filter holder, and the filter element itself. This segmentation allows the filter to be replaced independently without replacing the entire lid assembly, enabling users to maintain a single lid inventory while swapping different filter types as needed.

Inventive Principle:
Principle #1Segmentation

2Reliability

If filters are integrated directly into the lid, then sealing effectiveness is improved, but ease of filter replacement deteriorates

Engineering Contradiction:
Improvesealing effectivenessVSAvoidfilter replacement ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The filter assembly is segmented into a removable filter holder that interfaces with the lid. The holder includes engagement features (such as clips, tabs, or threading) that allow it to be securely attached to and detached from the lid without special tools. This segmentation maintains the sealing integrity when attached while enabling easy replacement when detached.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The filter holder employs dynamic retention mechanisms such as spring-loaded clips, snap-fit tabs, or threaded connections that provide secure holding during sterilization operations but allow for simple manual release. This dynamic design ensures the filter remains reliably sealed during use while facilitating easy removal and replacement by the operator.

Inventive Principle:
Principle #15Dynamics

3Ease of manufacture

If a standardized lid design is used, then manufacturing costs are reduced, but adaptability to different filter types deteriorates

Engineering Contradiction:
Improvemanufacturing costVSAvoidfilter type adaptability
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The lid incorporates a universally designed filter holder with standardized dimensions, mounting features, and sealing interfaces that can accommodate multiple filter types. This universal design allows the lid to be manufactured as a single standard part while still supporting various filter configurations through the adaptable holder mechanism.

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

Solution Approach 2:

The filter holder is designed as a nested component that fits within the lid structure, with the filter element itself nested within the holder. This nested arrangement allows the standardized lid to contain and support different filter types through the intermediate universal holder, maintaining manufacturing simplicity while achieving filter adaptability.

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

Enables the use of a single lid with multiple filter types, reducing inventory needs and ensuring effective sterilization by maintaining an airtight seal, while allowing for easy filter changes and user-friendly operation without tools.

Implementation Method 1

The receiving housing has a partial undercut on the side facing the cover, which serves to interact with corresponding hook elements of the fixing profile

Methodology Applied
Scientific EffectMechanical interlocking: Mechanical Fastener

Implementation Method 2

An embodiment of the receiving housing according to the invention also has a sealing ring on the side facing the cover

Methodology Applied
Scientific EffectSealing:

Implementation Method 3

a filter is integrated into the receiving housing

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Implementation Method 4

it is important to ensure that the material used can sufficiently withstand the requirements of sterilization in terms of temperature, pressure and duration

Methodology Applied
Scientific EffectThermal resistance:

Implementation Method 5

it is important to ensure that the material used can sufficiently withstand the requirements of sterilization in terms of temperature, pressure and duration

Methodology Applied
Scientific EffectPressure resistance:

Data Source

PatentEP2520314B1Filter unit
Publication Date: 2015.09.02 ERMIS MEHMET
  • EP2520314B1 patent drawingFigure 1~2
  • EP2520314B1 patent drawingFigure 3~5
  • EP2520314B1 patent drawingFigure 6

AI summary

In the case of a filter for attachment to a lid (1) of a sterilizing container (S) with a receiving housing (2), the receiving housing (2) shall be releasably connected to the lid (1) by a universal closure and the filter (3) shall be integrated in the receiving housing (2).