Volume Reflector Indicator for Anesthesia Gas Monitoring
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Solution Overview
Problem
Anesthesia systems with volume reflectors (VRs) lack a clear operational status indicator, making it difficult for operators to manage and optimize their use efficiently, leading to potential inefficiencies and safety concerns due to the 'black box' nature of these systems.
Innovation Solution
A Volume Reflector Indicator (VRI) is introduced, providing graphical representations on a screen to display the operational status of the VR, including filling or emptying status, fresh gas flow, and re-breathing fraction, allowing operators to understand the system's economic and clinical performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a volume reflector is used instead of a bellows system, then ventilation parameters are improved and gas leakage compensation is enhanced, but the system becomes less transparent to operators creating a 'black box' perception
Solution Approach 1:
The patent creates a visual copy or representation of the volume reflector's internal state through graphical icons on the display. These icons replicate the visual information that would naturally be visible in a bellows system, allowing operators to monitor gas volume and system status without direct visual access to the physical reflector.
Solution Approach 2:
The display screen acts as an intermediary between the volume reflector and the operator. It translates the physical state of the reflector (gas volume, compression level) into visual representations that convey the same operational information as a traditional bellows would provide directly.
2Adaptability or versatility
If a volume reflector is used instead of a bellows, then the system can deliver breathing gas during leakage conditions, but operators lack visual feedback on operational status
Solution Approach 1:
The system provides visual feedback through the display showing the operational status of the volume reflector. The graphical icons change to reflect the current state of the reflector, giving operators information about system performance and enabling them to respond appropriately to leakage conditions or other operational changes.
3Device complexity
If no visual indicator is provided for the volume reflector, then the system structure is simplified, but operators cannot monitor filling state or gas availability
Solution Approach 1:
The display creates a visual copy of the volume reflector's internal state using graphical icons that represent gas volume and compression level, providing information monitoring capability without adding physical complexity to the reflector structure itself.
Data Source
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AI summary
A Volume Reflector indicator for an anesthesia system is disclosed. The anesthesia system includes a volume reflector (30), a breathing circuit (40), a processing unit (10), and a display (20) operatively connected to said processing unit (10), wherein said processing unit (10) is configured to provide a status indicator (50) on said display (20) for gas in said volume reflector (30), said status indicator (50) including a graphical representation of (53) a waste gas flow out of said volume reflector (30) relative a fresh gas flow in said system (1), and/or (55) a balance between said fresh gas flow and patient uptake and/or leakage of gas from said breathing circuit, wherein said graphical representation of waste gas flow of said volume reflector and/or balance between fresh gas flow and patient uptake and/or leakage from said breathing circuit includes at least one bar graph.