Insufflation System Automatic Manual Gas Supply Switching
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Solution Overview
Problem
Existing insufflation systems face challenges in balancing automatic and manual air supply for carbon dioxide gas, leading to excess air supply and increased operator load when trying to maintain a predetermined pressure in a body cavity.
Innovation Solution
An insufflation system with automatic and manual air supply conduit lines, controlled by a selection operation member that ensures only one line is active at a time, preventing simultaneous operation and reducing excess air supply, featuring opening-and-closing valves and a direction switching valve to manage gas flow effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If both automatic air supply and manual air supply are enabled simultaneously, then operator convenience is improved, but excess air supply occurs leading to increased patient load
Solution Approach 1:
A switching valve is introduced as an intermediary component between the automatic and manual air supply lines. This valve selectively connects either the automatic air supply line or the manual air supply line to the common outlet, preventing both lines from operating simultaneously. The switching valve acts as a mediator that ensures exclusive operation of one supply mode at a time, thereby maintaining operator convenience while preventing harmful excess air supply to the patient.
2Manufacturing precision
If manual air supply is used to adjust pressure, then fine control is achieved, but frequent operator operation increases operation load
Solution Approach 1:
The system dynamically switches between automatic and manual air supply modes based on operational needs. The automatic mode handles routine pressure maintenance, reducing operator burden. When fine adjustments are needed, the operator can switch to manual mode for precise control. This dynamic switching capability allows the system to adapt to different operational requirements, maintaining pressure control precision while minimizing frequent manual operations and reducing overall operation load on the operator.
3Device complexity
If automatic air supply maintains predetermined pressure, then operator load is reduced, but manual adjustment capability is lost
Solution Approach 1:
The air supply system is designed with multi-functionality, incorporating both automatic pressure maintenance and manual adjustment capabilities within a single integrated system. The switching valve enables the system to operate in either automatic mode or manual mode as needed. This universal design allows the system to automatically reduce operator load during routine operations while retaining the flexibility to switch to manual mode when adaptability and fine control are required, thus achieving both reduced operator load and maintained versatility.
Data Source
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AI summary
An insufflation system configured to supply a predetermined gas into a body cavity of a subject includes: an automatic air supply conduit line configured to automatically supply a gas into the body cavity to maintain a predetermined pressure in the body cavity; a manual air supply conduit line configured to supply a gas into the body cavity by a manual operation; a function selection button provided in an endoscope; and a control unit configured to cause, in accordance with an operation of the function selection button, an air supply conduit line selected by an operation of the function selection button to be in a communication state, and cause a non-selected air supply conduit line to be in a disconnection state.