Respiratory Gas Sensor Color Detection for Adapter Zeroing
Solution Overview
Problem
Current respiratory gas sensor systems require manual and disruptive zeroing procedures for airway adapters, which can lead to patient ventilation interruptions and health risks, especially when switching between different adapter configurations.
Innovation Solution
A respiratory gas sensor system that employs color detection to automatically identify airway adapter types and retrieve corresponding zero-point values, using a light source and color detector to emit and reflect light from predefined color indicators on the adapters, allowing for seamless and accurate gas component measurements without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual zeroing procedures are used for airway adapters, then the gas analyzer can be calibrated to different adapter configurations, but patient ventilation is interrupted and health risks increase
Solution Approach 1:
The gas analyzer performs automatic self-calibration by detecting the color indicator on the airway adapter and retrieving the corresponding zero-point value from memory, eliminating the need for manual intervention and maintaining continuous patient ventilation
Solution Approach 2:
Zero-point values for different airway adapter configurations are pre-stored in the device memory during manufacturing, allowing the system to automatically retrieve and apply the correct calibration data without interrupting patient care
2Ease of operation
If color detection systems are added to automatically identify airway adapters, then manual zeroing interruptions are eliminated, but device complexity increases
Solution Approach 1:
The optical detector serves multiple functions: it detects the color indicator on the airway adapter for identification, and can also be used for measuring gas components, reducing the need for separate dedicated components
Solution Approach 2:
Different airway adapter configurations are assigned distinct color indicators that can be detected by the optical system, enabling automatic identification and calibration without adding complex mechanical or electronic identification mechanisms
3Measurement precision
If separate zeroing procedures are performed for different airway adapter configurations, then measurement accuracy is maintained, but time is lost and productivity decreases
Solution Approach 1:
Zero-point values for multiple airway adapter configurations are pre-calibrated and stored in device memory during manufacturing, allowing instant retrieval and application without repeated manual calibration procedures
Solution Approach 2:
The system continuously monitors the airway adapter configuration through color detection and automatically adjusts the zero-point value based on the detected adapter type, maintaining measurement accuracy without manual intervention
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables automatic and accurate determination of zero-point values for various airway adapter configurations, reducing the need for manual zeroing and minimizing patient disruption during ventilation, while also authenticating components and detecting other system parts like sampling lines and water traps.
Implementation Method 1
the measurement is based on the absorption of infrared (IR) radiation in the gas sample. A radiation source directs a beam of infrared radiation through a measuring chamber to a radiation detector whose output signal depends on the strength of the absorption of the radiation in the sample gas
Implementation Method 2
A light source is configured to emit light onto a color indicator, wherein the color indicator is one of a predefined set of colors. A color detector is configured to detect light reflected by a color indicator so as to identify color information
Data Source
AI summary
A gas analyzer for measuring a respiratory gas component includes an emitter that transmits infrared (IR) radiation through a measurement chamber containing respiration gas, and at least one IR detector configured to receive at least a portion of the IR radiation transmitted through the measurement chamber and to generate radiation measurement data based on the received IR radiation. A light source is configured to emit light onto a color indicator, wherein the color indicator is one of a predefined set of colors. A color detector is configured to detect light reflected by a color indicator so as to identify color information. The controllers configured to determine a respiratory gas component concentration within the measurement chamber based on the color information and the radiation measurement data.