Automated Oxygen Therapy Device with Periodic Sensor Feedback
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Solution Overview
Problem
Current homecare oxygen therapy devices face challenges in providing adequate oxygen regulation due to high requirements on manual regulation and reduced patient compliance caused by continuous attachment to sensors, leading to inadequate treatment, especially for patients with multiple medical conditions.
Innovation Solution
A double closed-loop regulated device for automated oxygen therapy that includes an oxygen flow path with a valve and flowmeter, and a controller that adjusts oxygen flow based on feedback from a sensor measuring SpO2 and pulse rate, allowing for variable oxygen flows during different time periods with reduced need for continuous patient monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If continuous sensor monitoring is used for automated oxygen therapy, then oxygen delivery accuracy is improved, but patient compliance deteriorates due to restricted mobility
Solution Approach 1:
The patent implements periodic monitoring intervals instead of continuous monitoring. The controller is configured to receive physiological data at predetermined time intervals, allowing patients to move freely between measurements while still maintaining adequate oxygen therapy control and accuracy.
2Measurement precision
If manual oxygen flow regulation is performed frequently, then oxygen therapy accuracy is improved, but time consumption increases
Solution Approach 1:
The patent implements an automated control system where the controller automatically adjusts oxygen flow based on received physiological data without requiring manual intervention. The system self-regulates by comparing measured SpO2 values against target ranges and autonomously modifying flow rates, eliminating time-consuming manual adjustments while maintaining therapy accuracy.
Solution Approach 2:
The patent employs a closed-loop feedback system where physiological data is continuously or periodically measured and fed back to the controller, which then adjusts oxygen delivery accordingly. This automated feedback mechanism replaces frequent manual regulations, reducing time consumption while preserving or improving therapy accuracy through real-time adaptive control.
3Loss of time
If intermittent oxygen regulation is used, then time consumption is reduced, but treatment quality deteriorates due to hypoxemia or hyperoxemia
Solution Approach 1:
The patent ensures continuous oxygen delivery with automated control that operates throughout the therapy period. Rather than intermittent manual adjustments, the system maintains continuous monitoring at predetermined intervals and continuous automated regulation, ensuring uninterrupted high-quality treatment while reducing overall time consumption through automation.
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 device improves patient compliance and treatment quality by reducing the time needed for patient monitoring, allowing for more efficient and adaptive oxygen delivery that minimizes the risk of hypoxemia or hyperoxemia, thus enhancing overall patient health.
Implementation Method 1
a sensor (3) configured for measuring sets of physiological data comprising patient SpO2 and pulse rate
Implementation Method 2
a valve (11) and a flowmeter (12) arranged consecutively on the oxygen flow path (5a-c), and a controller (13) configured (15) for controlling the flow of oxygen through the valve (11)
Implementation Method 3
a flowmeter (12) arranged consecutively on the oxygen flow path (5a-c)
Data Source
AI summary
According to the invention there is herein detailed a method for automated home oxygen therapy and a double closed-loop regulated device for regulating oxygen for automated oxygen therapy, the device and method comprising use of a controller configured for controlling the provided flow of oxygen through the valve by adjusting the valve in response to feedback from a flowmeter and a sensor; the controller configured to provide a first flow of oxygen for a first set time t1 and in response to a received first set of physiological data comprising patient SpO2 and pulse rate from the sensor, establish a second set time t2, the controller further configured for providing a variable second flow of oxygen for the second set time t2 while receiving a second set of physiological data comprising patient SpO2 and pulse rate from the sensor for establishing a third set time t3 based on the physiological data received; and providing a third flow of oxygen for the third set time t3, without feedback from the sensor.