Endoscope Gas Switching with CO2 Pressure Threshold Control
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Solution Overview
Problem
Existing endoscope systems require manual switching between air and carbon dioxide gas supply, placing a burden on operators and risking excessive gas accumulation in the body cavity.
Innovation Solution
An endoscope system with a gas state detector and processor that automatically controls the air supply based on the detected state of carbon dioxide, stopping air feeding when a predetermined threshold is reached.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual switching between air and carbon dioxide supply is implemented, then gas supply flexibility is improved, but operator burden increases and risk of excessive gas accumulation arises
Solution Approach 1:
The system performs automatic gas switching based on detected carbon dioxide concentration levels. When CO2 concentration reaches a predetermined threshold, the air supply is automatically stopped without requiring manual operator intervention, thereby reducing operational burden while maintaining gas supply flexibility
Solution Approach 2:
The gas state detector continuously monitors carbon dioxide concentration in the body cavity and provides feedback to the control processor. This feedback mechanism enables automatic adjustment of gas supply by stopping air feeding when CO2 concentration reaches the threshold, preventing excessive gas accumulation
2Quantity of substance
If both air and carbon dioxide are simultaneously fed, then gas supply completeness is improved, but excessive gas accumulation occurs
Solution Approach 1:
The system uses a gas state detector to monitor carbon dioxide concentration in real-time and provides feedback to the control processor. When the CO2 concentration reaches a predetermined threshold, the system automatically stops air supply, thereby preventing excessive gas accumulation while ensuring adequate gas supply completeness during normal operation
Solution Approach 2:
The system takes preliminary action by continuously monitoring CO2 concentration and automatically stopping air supply before excessive gas accumulation can occur. This preventive mechanism ensures gas supply completeness is maintained while avoiding harmful over-accumulation
Data Source
AI summary
An endoscope system includes a gas feeding apparatus that feeds carbon dioxide, and a light source apparatus provided with an air pump for supplying air. The endoscope system feeds the carbon dioxide or the air from a distal end of an endoscope when a gas/liquid feeding button provided to the endoscope is operated. The endoscope system includes a pressure meter and a processor. The pressure meter is provided inside the gas feeding apparatus and configured to detect a pressure of the carbon dioxide. The processor is configured to perform control for stopping feeding of the air by the air pump when determining that, after the carbon dioxide is fed by an operation of the gas/liquid feeding button, the pressure of the carbon dioxide detected by the pressure meter reaches a predetermined threshold.