Germ Barrier in Breathing Gas Line
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Solution Overview
Problem
Existing anesthesia and ventilation systems are vulnerable to germ contamination, particularly through the anesthesia gas scavenging system, where pathogens can enter and accumulate, potentially returning to the patient's breathing circuit.
Innovation Solution
A device with a germ barrier is integrated into the ventilation system, featuring a line section that prevents germs from passing between the ventilator and the breathing gas line system, using a combination of design features such as sloping sections to drain condensate and potentially using heating or UV radiation to disinfect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If HEPA filters are used to trap germs in the anesthesia gas scavenging system, then germ retention is improved (99.95% retention), but some germs can still pass through and accumulate in the system tubes
Solution Approach 1:
The line is divided into multiple sections with the third line section specifically designed as a germ barrier, separating the functional components to address germ contamination at a critical interface point
Solution Approach 2:
The third line section acts as an intermediary germ barrier between the first and second line sections, preventing direct contact and transmission of germs while allowing gas flow to continue
2Productivity
If the anesthesia gas scavenging system operates continuously to maintain negative pressure, then gas extraction is improved, but germs can accumulate in the tubes over time
Solution Approach 1:
The germ barrier is installed in advance at the critical interface point to prevent germ accumulation before it occurs, allowing continuous operation without interruption for cleaning
3Object-affected harmful factors
If cleaning of the anesthesia gas scavenging system tubes is performed regularly, then germ accumulation is reduced, but maintenance time and complexity increase
Solution Approach 1:
The germ barrier prevents germ accumulation in the first place, eliminating the need for regular cleaning operations and maintaining system reliability without time-consuming maintenance
4Ease of operation
If condensate is present in the tubes to maintain humidity, then breathing comfort is improved, but germs can use this as a breeding ground
Solution Approach 1:
The third line section serves as an intermediary barrier that blocks germ transmission while allowing the condensate and gas flow to continue through the system unchanged
Data Source
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AI summary
The invention relates to a device for germ defense in a ventilation system, wherein the ventilation system comprises, in addition to the device, a ventilator and a breathing gas line system for conducting breathing gas to and/or away from the ventilator, wherein the device comprises a line for conducting the breathing gas between the ventilator and the breathing gas line system, wherein the line comprises a first line section with a first connection for connecting the line to the ventilator, a second line section with a second connection for connecting the line to the breathing gas line system and a third line section connecting the first line section to the second line section, wherein the third line section is designed as a germ barrier to prevent germs from getting from the first line section into the second line section and/or from the second line section into the first line section.