Paramagnetic Oxygen Sensor External Mounting for Ventilator Maintenance
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Solution Overview
Problem
Chemical oxygen sensors in ventilators have a short service life, leading to inaccurate oxygen concentration monitoring and maintenance challenges, posing risks to patients and complicating maintenance due to their internal placement.
Innovation Solution
A ventilation apparatus using a paramagnetic oxygen sensor mounted externally with a buffer structure and mounting assembly, allowing for precise oxygen content detection without loss and facilitating maintenance by keeping the sensor outside the housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a chemical oxygen battery is used inside the ventilator, then the oxygen concentration can be monitored, but the service life is short (1-2 years) and requires regular replacement
Solution Approach 1:
The oxygen sensor is extracted from the internal structure of the ventilator and mounted externally on the housing. This allows the sensor to be easily accessible for replacement and maintenance without disassembling internal components, thereby extending the effective service life through convenient maintenance cycles.
Solution Approach 2:
The patent transitions from using a chemical oxygen battery to a paramagnetic oxygen sensor, changing the detection principle from chemical consumption-based to physical field-based measurement. This parameter change eliminates the consumable electrode issue, enabling long-term stable operation without regular replacement.
2Device complexity
If the chemical oxygen battery is disposed inside the ventilator, then the monitoring function is integrated, but maintenance becomes inconvenient
Solution Approach 1:
The oxygen sensor is extracted from the internal structure of the ventilator and mounted externally on the housing. This allows the sensor to be easily accessible for replacement and maintenance without disassembling internal components, thereby extending the effective service life through convenient maintenance cycles.
3Productivity
If the chemical oxygen battery exceeds service life without replacement, then operation continues, but inaccurate monitoring and patient risk occur
Solution Approach 1:
The patent transitions from using a chemical oxygen battery to a paramagnetic oxygen sensor, changing the detection principle from chemical consumption-based to physical field-based measurement. This parameter change eliminates the consumable electrode issue, enabling long-term stable operation without regular replacement.
Solution Approach 2:
The paramagnetic oxygen sensor does not consume internal electrodes during measurement and maintains stable performance over time. The sensor essentially serves itself by not requiring replacement for the same duration as the ventilator's operational life, ensuring continuous reliable monitoring.
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
Prolongs the service life of the ventilation apparatus, ensures accurate oxygen monitoring, reduces maintenance complexity, and enhances patient safety by avoiding the risks associated with untimely sensor replacement and internal sensor placement.
Implementation Method 1
a paramagnetic oxygen sensor disposed outside the housing by means of the mounting assembly, the paramagnetic oxygen sensor detecting oxygen content in the inhalation branch
Data Source
AI summary
The disclosure provides a ventilation apparatus. The ventilation apparatus includes a housing, an inhalation branch, a control unit, a gas source port, an exhalation branch, and a paramagnetic oxygen sensor. The paramagnetic oxygen sensor is used for detecting the oxygen content in the inhalation branch. The gas source port is disposed on the housing. The inhalation branch, the control unit, and the exhalation branch are enclosed within the housing. The paramagnetic oxygen sensor is disposed outside the housing.