Disposable Sterilization Container with Frangible Lock

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Solution Overview

Problem

Current sterilization methods for medical items face challenges such as tears in sterilization wraps due to tray edges, lack of visibility during sterilization, and the resource-intensive maintenance of reusable containers, leading to potential contamination and increased costs.

Innovation Solution

A non-reusable, locking sterilization container with a tray, lid, permeable filter, non-reusable lock, and frangible release, designed for single-use sterilization, providing a secure, transparent, and easy-to-inspect solution that maintains sterility and reduces resource consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If sterilization wraps are made of thin, inexpensive, flexible material, then initial cost is reduced, but the wraps are prone to tears and breaches due to tray edges and pressure

Engineering Contradiction:
Improveinitial costVSAvoidintegrity of wrap barrier
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent uses a flexible sterilization wrap made of thin film material that is designed to be strength-enhanced at critical locations. The wrap includes reinforced portions at the edges and corners where tears most commonly occur, allowing the use of thin, inexpensive material while preventing tear propagation at these vulnerable points.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The patent incorporates cushioning elements or reinforced structures at the edges and corners of the sterilization wrap before sterilization. These pre-positioned protective features absorb and distribute pressure forces during handling and sterilization, preventing the formation of tears and breaches that would compromise sterility.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

2Reliability

If sterilization wraps are made of non-transparent material, then sterility is maintained, but visibility of items and sterilization completion cannot be inspected

Engineering Contradiction:
Improvesterility maintenanceVSAvoidvisibility of items
Core Design Contradiction:
ReliabilityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent incorporates transparent or translucent portions in the sterilization wrap that allow visual inspection of the items inside. These transparent regions enable medical professionals to verify the presence and condition of sterilized items without compromising the overall sterility barrier, as the wrap remains sealed and sterile while allowing light transmission through specific windows.

Inventive Principle:
Principle #32Color changes

3Reliability

If reusable vented rigid sterilization containers are used, then sterility is maintained, but significant maintenance and cleaning resources are required

Engineering Contradiction:
Improvesterility maintenanceVSAvoidresource consumption for maintenance
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent employs a disposable sterilization wrap system that is designed for single use. After a single sterilization cycle, the entire wrap assembly is discarded, eliminating the need for cleaning, maintenance, and sanitization of reusable containers. This disposable approach significantly reduces the time and resources required for maintenance while maintaining sterility through proper sealing and packaging design.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

4Ease of operation

If sterilization trays with pointed edges are used, then items can be securely held, but forces are concentrated that generate tears in the wrap

Engineering Contradiction:
Improvesecure holding of itemsVSAvoidresistance to wrap tearing
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The patent applies different material properties to different regions of the sterilization wrap. The edges and corners of the wrap are made with enhanced strength and tear resistance through reinforcement, while the central portions maintain their flexibility and simplicity. This localized quality enhancement allows the wrap to withstand the concentrated forces from tray edges without tearing.

Inventive Principle:
Principle #3Local quality

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 container ensures sterility and confidence in medical procedures by preventing contamination, reducing resource waste, and simplifying handling and inspection processes, while being cost-effective and easy to use.

Implementation Method 1

a permeable filter, a non-reusable lock and a frangible release... The permeable filter provides a path for a sterilant to enter the chamber from outside the container

Methodology Applied
Scientific EffectPermeation: Permeation

Data Source

PatentEP2367497B1Single use sterilization container
Publication Date: 2015.09.02 AVENT INC
  • EP2367497B1 patent drawingFigure 1
  • EP2367497B1 patent drawingFigure 2
  • EP2367497B1 patent drawingFigure 3

AI summary

A non-reusable, locking container for sterilizing and storing surgical materials and presenting surgical materials in a sterilized condition. The non-reusable, locking sterilization container includes a tray, a lid, a permeable filter, a non-reusable lock and a frangible release that limit the container to only a single sterilization cycle or single use.