Surgical Sterilization Container Fluid Extraction Valve

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Solution Overview

Problem

Conventional surgical sterilization containers with a passage opening in the base and outlet valve face issues such as condensate draining in surges, leading to undesirable cooling and germ entry, and the risk of valve damage or malfunction due to uneven surfaces or objects, making it difficult to detect malfunctions.

Innovation Solution

The sterilization container design features an outlet valve positioned away from the floor, incorporating a fluid lifting device that collects condensate and feeds it laterally to the valve, reducing the risk of surge drainage and enhancing sealing to prevent germ entry, while also allowing for pressure reduction via a secondary flow path.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the outlet valve is arranged on the base to drain condensate, then the condensate can be removed from the container, but the condensate emerges in a surge causing undesirable cooling and germ entry

Engineering Contradiction:
Improvecondensate removal efficiencyVSAvoidsurge drainage causing cooling and germ entry
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

A fluid lifting device acts as an intermediary between the condensate collection area and the outlet valve. This device includes a fluid channel that receives condensate from the base and delivers it to the outlet valve in a controlled manner, preventing direct surge drainage while maintaining efficient condensate removal

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The outlet valve is repositioned from the base to the container wall at a distance from the floor, changing the drainage dimension from vertical (through the base) to lateral (through the wall). This dimensional change allows controlled fluid extraction without direct surge exposure to the installation surface

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

2Ease of operation

If the outlet valve is arranged on the base, then condensate drainage is facilitated, but the valve is susceptible to damage or malfunction from uneven surfaces or objects

Engineering Contradiction:
Improvecondensate drainage functionVSAvoidvalve sealing reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The outlet valve is extracted from its vulnerable position on the base and relocated to the container wall at a distance from the floor. This removal from the installation surface eliminates exposure to uneven surfaces and objects, protecting the valve from damage while maintaining drainage functionality through the fluid lifting device

Inventive Principle:
Principle #2Taking out (Extraction)

3Productivity

If the passage opening is arranged in the base, then condensate can be drained, but the sterilization container is insufficiently sealed in case of valve malfunction

Engineering Contradiction:
Improvefluid drainage capabilityVSAvoidcontainer sealing integrity
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The passage opening is relocated from the base to the container wall, changing the sealing dimension from the installation surface interface to the container wall interface. This relocation maintains fluid drainage capability through the fluid lifting device while significantly improving sealing integrity, as the valve on the wall is less susceptible to malfunction from external factors

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

4Productivity

If the outlet valve is positioned on the base, then condensate removal is direct, but malfunction detection by hospital staff is difficult

Engineering Contradiction:
Improvecondensate extraction efficiencyVSAvoidvalve malfunction detectability
Core Design Contradiction:
ProductivityVSDifficulty of detecting and measuring

Solution Approach 1:

The fluid lifting device serves as a visible intermediary component between the base and the outlet valve. Its position and function make it more accessible and observable to hospital staff, improving malfunction detectability while maintaining efficient condensate extraction through its fluid channel

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 effectively removes fluid from the container without surge, reduces mechanical stress, and ensures reliable sealing to prevent germ entry, improving the sterilization process and container integrity.

Implementation Method 1

the fluid lifting device forms a fluid connection from the bottom, on which fluid such as in particular condensate usually collects, so that fluid can be lifted by means of the fluid lifting device and fed to the outlet valve

Methodology Applied
Scientific EffectPressure difference: Pressure Gradient

Implementation Method 2

a valve device which has an outlet valve for releasing and closing the passage opening

Methodology Applied
Scientific EffectPressure relief: Depressurisation

Data Source

PatentEP2822609B1Surgical sterilisation container with fluid extraction device
Publication Date: 2016.01.20 AESCULAP AG
  • EP2822609B1 patent drawingFigure 1
  • EP2822609B1 patent drawingFigure 2
  • EP2822609B1 patent drawingFigure 3

AI summary

The invention relates to a surgical sterilisation container comprising a base (14) and a container wall (16), wherein a through hole (62) is formed on the sterilisation container (10) for media exchange, and a valve device (58) having an outlet valve (66) for releasing and closing the through hole (62). In order to provide such a surgical sterilisation container, from which fluid formed inside the container can be removed to reduce the risk of germs entering the container interior, the invention proposes that the through hole (62) is formed in the container wall (16) and is at a distance from the base (14), and that the sterilisation container (10) comprises a fluid raising device (92) for creating a fluid communication between the base (14) and the outlet valve (66) and for raising fluid from the base (14) to the outlet valve (66). The invention further relates to a surgical fluid extraction device for use with a surgical sterilisation container comprising a container wall and a base.