Anesthesia Exhaust Control via Electronic Flow Detection
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Solution Overview
Problem
Traditional anesthesia machine gas scavenging systems face issues with inconvenient data observation and misreading, leading to resource wastage in hospital exhaust gas recovery systems when anesthesia machines are in standby mode.
Innovation Solution
An anesthesia machine exhaust emission control system with an electronic flow detector, controller, display, and switch that monitors and adjusts gas flow according to the machine's operating state, ensuring accurate readings and resource conservation by closing the connection pipeline during standby states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a mechanical float flowmeter is used to monitor gas flow in the traditional gas scavenging system, then the system can detect exhaust gas flow, but the observation is inconvenient and data reading is prone to errors
Solution Approach 1:
The patent replaces the mechanical float flowmeter with an electronic flow detector that provides digital output. This substitution eliminates the need for visual reading of mechanical indicators, thereby improving both measurement precision and ease of operation through electronic detection and digital display of gas flow data.
Solution Approach 2:
The patent introduces a display device as an intermediary between the flow detector and the user. The display converts electronic signals into visual information, making data observation convenient and eliminating reading errors associated with direct mechanical indicator observation.
2Reliability
If the hospital exhaust gas recovery system operates continuously to ensure all anesthesia machines work normally, then system reliability is maintained, but resources are wasted when machines are in standby state
Solution Approach 1:
The patent implements dynamic control of the exhaust gas recovery system by introducing a controller that receives signals from the anesthesia machine's working state detector. The controller dynamically adjusts the exhaust gas flow valve based on whether the machine is in standby or operational mode, enabling the system to adapt its resource consumption to actual operational needs while maintaining reliability.
Solution Approach 2:
The patent establishes a feedback control loop where the working state detector monitors the anesthesia machine status, sends signals to the controller, which then adjusts the exhaust gas flow valve accordingly. This feedback mechanism ensures the system responds appropriately to changes in machine state, preventing resource waste during standby while ensuring proper exhaust removal during operation.
3Productivity
If the exhaust gas recovery system extracts gas continuously from standby anesthesia machines, then all machines can work normally when activated, but a large amount of air is wasted from standby machines
Solution Approach 1:
The patent implements preliminary detection of the anesthesia machine's working state through a dedicated detector that identifies whether the machine is in standby or operational mode before the exhaust gas recovery system activates. This preliminary action allows the controller to prepare appropriate control signals, ensuring the system only extracts exhaust gas when actually needed, thereby preventing resource waste while maintaining machine availability.
Data Source
AI summary
An anesthesia machine exhaust emission control system detects a gas flow in a connection pipeline by an electronic flow detector and displays same by a display, and a controller controls, according to an operating state of the anesthesia machine, a switch so same turns on or turns off the connection pipeline. The method for controlling the connection exhaust emission control system comprises, directly displaying a gas flow value in the connection pipeline by the electronic flow detector, the controller and the display, so that the user can conveniently and accurately read the gas flow value in the connection pipeline. The connection pipeline is turned off when an anesthesia machine is in a standby status, thereby greatly saving exhaust gas recovery resources of a hospital.