Airway Adapter Orientation Detection for Respiratory Gas Flow Measurement
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Solution Overview
Problem
Conventional respiratory component measurement systems face challenges in ensuring accurate and reliable gas flow measurements due to potential misorientation and motion-related issues with airway adapters, which can lead to impaired measurement quality and fluid accumulation on sensors.
Innovation Solution
A respiratory component measurement system that includes an airway adapter with integrated or coupled sensors to detect orientation and motion-related characteristics, using inclinometers and accelerometers to monitor tilt, position, and forces, and communicate these data to a processor or indicating element to prevent misalignment and fluid ingress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the airway adapter is placed in series in the breathing circuit to enable gas flow measurement, then the measurement capability is improved, but the risk of misorientation and fluid accumulation on sensors increases
Solution Approach 1:
The system performs preliminary detection of orientation and motion characteristics before fluid accumulation can occur. The sensors monitor tilt angles and motion forces continuously, enabling early warning and corrective action before the airway adapter becomes misoriented enough to allow fluid ingress onto the measurement sensors.
Solution Approach 2:
The system implements feedback by continuously monitoring orientation and motion parameters and using this information to alert operators or adjust the system. The indicating elements provide real-time feedback about the airway adapter's orientation state, allowing corrective action to maintain measurement reliability.
2Loss of information
If sensors are integrated into the airway adapter to detect orientation and motion, then the monitoring capability is improved, but the device complexity increases
Solution Approach 1:
The airway adapter is designed with multi-functionality, serving both as a mechanical component for gas flow and as a platform for orientation and motion sensing. The same structural elements of the airway adapter are utilized to mount sensors that provide additional monitoring functions without requiring a separate dedicated sensing device.
Solution Approach 2:
The system merges the gas flow measurement function with orientation and motion detection functions in a single integrated airway adapter assembly. The sensors are combined with the airway adapter structure, eliminating the need for separate monitoring devices and reducing overall system complexity despite adding sensing capabilities.
3Measurement precision
If the sample cell is located directly in the respiratory gas stream to obtain crisp waveforms, then the measurement quality is improved, but the vulnerability to fluid exposure increases
Solution Approach 1:
The orientation and motion sensors perform preliminary monitoring to detect conditions that could lead to fluid exposure before it occurs. By detecting unfavorable tilt angles or motion patterns early, the system can alert operators to reposition the airway adapter or take protective measures before fluid accumulates on the sample cell or sensors.
Solution Approach 2:
The system converts the potential harm of fluid exposure into a beneficial monitoring opportunity. The same sensors that detect orientation and motion are used to predict and prevent fluid accumulation, turning a vulnerability into an early warning system that protects the measurement quality.
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
The system ensures reliable and accurate gas flow measurements by detecting and correcting misorientation and motion-related issues, minimizing fluid exposure on sensors and maintaining measurement integrity under adverse conditions.
Implementation Method 1
using inclinometers and accelerometers to monitor tilt, position, and forces
Implementation Method 2
using inclinometers and accelerometers to monitor tilt, position, and forces
Data Source
AI summary
A respiratory component measurement system that includes an airway adapter adapted to be placed in fluid communication with an airway of a patient and a sensor element in physical communication with the airway adapter. The sensor element is adapted to detect an orientation related characteristic of the airway adapter, a motion related characteristic of the airway adapter, or both. A respiratory component sensor is also adapted to be disposed on the airway adapter so as to measure a characteristic associated with a flow of gas through the airway adapter. An indicating element coupled to the respiratory component sensor is adapted to output a representation of the orientation related characteristic.