Portable Oxygen Concentrator Pulse Duration Control
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Solution Overview
Problem
Portable oxygen concentrators for patients with respiratory diseases lack the ability to adjust oxygen delivery according to varying respiratory conditions, leading to suboptimal therapy and patient comfort.
Innovation Solution
A system and method for setting pulse duration in a portable oxygen concentration system that allows clinicians to adjust inspiratory time and bolus size, enabling tailored oxygen delivery based on individual respiratory conditions through a user interface, using a combination of continuous flow and pulse flow modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If pulse flow mode is used to conserve energy, then energy efficiency is improved, but patient comfort and adherence deteriorate due to inability to adjust oxygen delivery
Solution Approach 1:
The system dynamically adjusts pulse duration and flow rate based on patient-specific inspiratory time parameters. The pulse duration is set as a percentage (10-100%) of the patient's inspiratory time, allowing the oxygen delivery to adapt to varying respiratory conditions while maintaining energy efficiency through pulse flow mode.
Solution Approach 2:
The system changes key parameters including pulse duration, flow rate, and inspiratory time percentage to optimize both energy efficiency and patient comfort. By allowing clinicians to adjust these parameters based on individual patient respiratory conditions, the system achieves versatility without sacrificing energy conservation.
2Ease of operation
If fixed pulse duration is used to simplify operation, then ease of operation is improved, but adaptability to different respiratory conditions deteriorates
Solution Approach 1:
The system allows clinicians to adjust the pulse duration as a percentage of inspiratory time (10-100%) and modify the default inspiratory time (0.5-1.5 seconds). These parameter adjustments enable customization for different respiratory conditions while maintaining a user-friendly interface that guides clinicians through the settings process.
Data Source
AI summary
A method of controlling bolus delivery in a pulse flow oxygen concentration system for a patient includes providing a pulse flow oxygen concentration system that delivers concentrated oxygen gas to the patient in boluses having a pulse bolus duration, the pulse flow oxygen concentration system including an open control for controlling the pulse bolus duration of the boluses; determining one or more respiratory conditions of the patient; and adjusting the open control to adjust the pulse bolus duration of the boluses in accordance with the determined one or more respiratory conditions of the patient.