Oxygen Concentrator with Flow Path Switching Valve Monitoring
Summary
USPTO published patent application US20260097353A1 for Teijin Pharma Limited covering an oxygen concentrator with monitoring means to detect flow path switching valve abnormalities using pressure sensor outputs. The invention addresses detecting valve issues upstream of the concentrator from pressure waveforms in the product tank.
What changed
USPTO published patent application US20260097353A1 for an oxygen concentrator with a monitoring system that detects abnormalities in flow path switching valves. The system monitors valve conditions based on pressure sensor outputs in the product tank and triggers abnormality detection when pressure values fall outside predetermined thresholds during adsorption or desorption steps.
Manufacturers of oxygen concentrators and related medical equipment should monitor this patent for potential licensing implications or design considerations. Competitors developing pressure-based monitoring systems for similar devices may need to evaluate freedom-to-operate risks.
What to do next
- Monitor for updates on patent prosecution
Archived snapshot
Apr 10, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
OXYGEN CONCENTRATOR
Application US20260097353A1 Kind: A1 Apr 09, 2026
Assignee
Teijin Pharma Limited
Inventors
Yuta MORISHITA, Yoshihiro MUROSHIGE
Abstract
An oxygen concentrator is provided with a monitoring means for monitoring conditions of the flow path switching means based on the output of the pressure sensor in the product tank, and detects an abnormality of the flow path switching valve when a detected value of the pressure sensor during the adsorption step and/or desorption step falls outside a predetermined threshold range. The problem of detecting an abnormality in a flow path switching valve upstream of an oxygen concentrator from the waveform of a pressure sensor provided in a product tank is thereby addressed.
CPC Classifications
B01D 53/053 A61M 16/101 A61M 16/16 C01B 13/0259 B01D 2256/12 B01D 2257/102 B01D 2258/06 B01D 2259/40009 B01D 2259/4533
Filing Date
2023-09-19
Application No.
19113018
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Source
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