Media Separating Device for Recontamination-Free Instrument Drying
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Solution Overview
Problem
Existing cleaning and disinfection devices for medical and dental instruments face limitations in optimizing drying performance for both internal and external drying, while also risking recontamination due to inadequate media separation and limited volume flow.
Innovation Solution
A cleaning and disinfection device with a media separating device having separate inlets for rinsing liquid and drying air, and a common outlet, equipped with a movable shut-off element controlled by a drive element to independently manage the flow of liquids and air, allowing for optimized internal and external drying with reduced recontamination risk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a common outlet for rinsing liquid and drying air is used in the media separating device, then the device complexity is reduced and ease of operation is improved, but the risk of recontamination increases due to potential short circuits and moisture penetration
Solution Approach 1:
A non-return valve is introduced as an intermediary component in the common outlet path to prevent moisture from penetrating into the drying line. This valve acts as a mediator that allows drying air to pass through while blocking contaminated rinsing liquid, thus maintaining the simple common outlet structure while eliminating the recontamination risk
Solution Approach 2:
The function of preventing recontamination is extracted from the media separating device structure itself and implemented through a separate non-return valve component. This allows the common outlet structure to remain simple while the recontamination prevention function is handled by the dedicated valve mechanism
2Productivity
If drying air volume flow is increased for faster drying, then the productivity is improved, but the risk of recontamination increases due to higher pressure differentials that can force moisture into the drying line
Solution Approach 1:
The non-return valve serves as a mediator that permits high-volume drying air flow to pass through while blocking any reverse flow of contaminated moisture. This allows the system to operate at high productivity levels without increasing recontamination risk, as the valve maintains unidirectional flow regardless of pressure differentials
3Productivity
If internal drying and external drying are performed simultaneously, then the productivity is improved, but the media separating device becomes more complex requiring separate control mechanisms
Solution Approach 1:
The media separating device combines multiple functions into a single integrated structure: it separates rinsing liquid and drying air paths, provides a common outlet for both media, and incorporates a non-return valve for contamination prevention. This merging allows simultaneous internal and external drying without requiring separate complex control mechanisms for each drying path
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 enables enhanced drying performance for both internal and external surfaces of medical and dental instruments, reducing the risk of recontamination and allowing for flexible operation modes, including simultaneous internal and external drying.
Implementation Method 1
a drive element (5), which is used to move a shut-off element (1) that is movably mounted in the media separating device
Implementation Method 2
it being possible for the heating to be carried out, for example, by means of a drying heater
Implementation Method 3
drying air is passed through an internal lumen of an instrument to be dried... to accelerate drying and to reduce residual moisture
Implementation Method 4
the drying air flows into the cleaning chamber of the cleaning and disinfection device and supports the drying of the outer surfaces of the instruments
Data Source
Figure 1~2
Figure 3A~3D
Figure 4A~4C
AI summary
The invention relates to a cleaning and disinfection device for medical and/or dental instruments, with a media separation device (1), wherein the media separation device (1) has a first inlet (2) for rinsing liquid, a second inlet (3) for drying air and a common outlet (4) for rinsing liquid and drying air, through which either rinsing liquid or drying air can flow from the media separation device (1).According to the invention, the cleaning and disinfection device has a drive element by means of which a shut-off element (5) movably mounted in the media separation device (1) can be moved into a first position in which it closes the first inlet (2), into a second position in which it closes the second inlet (3), and into a third position in which it closes the common outlet (4), wherein the drive element is designed independently of a device for conveying rinsing fluid or drying air through the media separation device (1). The invention further relates to a method for drying medical and/or dental instruments.