Title:
OXYGEN CONCENTRATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/063041
Kind Code:
A1
Abstract:
[Problem] To detect an abnormality of a flow path switching valve upstream of an oxygen concentration device from the waveform of a pressure sensor provided to a product tank. [Solution] An oxygen concentration device characterized by comprising a monitoring means that monitors the state of a flow path switching means by the output of a pressure sensor of a product tank, wherein a flow path switching valve abnormality is detected if a detected value of the pressure sensor at an adsorption step and/or desorption step deviates from the range of a prescribed threshold.
Inventors:
MORISHITA YUTA (JP)
MUROSHIGE YOSHIHIRO (JP)
MUROSHIGE YOSHIHIRO (JP)
Application Number:
PCT/JP2023/033854
Publication Date:
March 28, 2024
Filing Date:
September 19, 2023
Export Citation:
Assignee:
TEIJIN PHARMA LTD (JP)
International Classes:
C01B13/02; A61M16/10; B01D53/053
Domestic Patent References:
| WO2022015907A1 | 2022-01-20 |
Foreign References:
| JP2005046254A | 2005-02-24 | |||
| JPS6487502A | 1989-03-31 | |||
| JP2018175542A | 2018-11-15 | |||
| JP2007190314A | 2007-08-02 |
Attorney, Agent or Firm:
TAMEYAMA Taro (JP)
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