Remote Catalytic Gas Sensor for Therapeutic Delivery
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Solution Overview
Problem
Existing therapeutic gas delivery systems face challenges in monitoring gas composition due to the need for electro-chemical sensors to be directly integrated into the gas stream, which limits accessibility and space for calibration and replacement.
Innovation Solution
A monitoring apparatus with a catalytic sensor is configured to receive a portion of gas from the therapeutic gas delivery system, allowing the sensor to be located remotely from the gas delivery flow path, facilitating pneumatic sampling and return, thus enabling convenient access for calibration and replacement while maintaining accurate sampling through a pressure differential.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the catalytic sensor is directly integrated into the gas delivery flow path, then accurate gas monitoring is achieved, but accessibility for calibration and replacement is reduced
Solution Approach 1:
The system is divided into two separate components: a sampling apparatus that extracts gas from the flow path and a catalytic sensor that analyzes the sampled gas. This segmentation allows the sensor to be physically separated from the gas delivery system, providing accessibility for calibration and replacement while maintaining monitoring accuracy through representative gas sampling.
Solution Approach 2:
A gas sampling apparatus acts as an intermediary between the gas delivery flow path and the catalytic sensor. The sampling apparatus extracts a representative portion of gas from the main flow and delivers it to the sensor, enabling the sensor to be located remotely from the gas stream while still achieving accurate gas composition monitoring.
2Ease of operation
If the catalytic sensor is located remotely from the gas delivery flow path, then accessibility for calibration and replacement is improved, but gas sampling complexity increases
Solution Approach 1:
The catalytic sensor is extracted from the gas delivery flow path and placed in a separate sampling apparatus. This extraction allows the sensor to be accessed independently for calibration and replacement while the sampling apparatus handles the complexity of gas extraction and delivery through simplified pneumatic connections.
3Measurement precision
If a portion of gas is sampled and returned through the pressure generator inlet, then accurate gas analysis is maintained, but system space requirements increase
Solution Approach 1:
The sampling apparatus is designed to nest within or attach to the existing pressure generator and gas delivery system components. The sampling ports are integrated into the pressure generator inlet and outlet, allowing the remote sensor to be accommodated within the existing system footprint without requiring additional external space.
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
This configuration allows for efficient monitoring of gas composition with a catalytic sensor, ensuring accurate and accessible gas analysis without disrupting the therapeutic gas delivery system, meeting the requirements for space and accessibility.
Implementation Method 1
Commercially available electro-chemical sensors are available to measure a portion of oxygen present in a gas sample
Implementation Method 2
a pressure generator having an inlet and an outlet configured to generate a pressurized flow of breathable gas
Data Source
AI summary
The present disclosure pertains to an apparatus configured to facilitate monitoring of gas in a therapeutic gas delivery system with a catalytic sensor. The gas delivery system comprises a pressure generator having an inlet and an outlet, and a gas delivery flow path configured to communicate the gas between the pressure generator and a subject. The apparatus comprises a receiver body configured to receive the catalytic sensor such that the catalytic sensor removably couples with the receiver body, the receiver body located remotely from/outside the gas delivery flow path; a delivery port configured receive a portion of gas obtained from the gas delivery system that has passed through the pressure generator outlet and guide the received portion of gas toward the catalytic sensor; and a return port configured to exhaust the received portion of gas from the receiver body to the gas delivery system through the pressure generator inlet.