US 12,465,714 B2
Oxygen concentrator, control method, and control program
Koichi Shinohara, Tokyo (JP); and Yuki Yamaura, Tokyo (JP)
Assigned to Teijin Pharma Limited, Tokyo (JP)
Appl. No. 17/293,967
Filed by Teijin Pharma Limited, Tokyo (JP)
PCT Filed Nov. 14, 2019, PCT No. PCT/JP2019/044758
§ 371(c)(1), (2) Date May 14, 2021,
PCT Pub. No. WO2020/100996, PCT Pub. Date May 22, 2020.
Claims priority of application No. 2018-215091 (JP), filed on Nov. 15, 2018.
Prior Publication US 2022/0001130 A1, Jan. 6, 2022
Int. Cl. A61M 16/10 (2006.01); A61M 16/00 (2006.01); A61M 16/20 (2006.01); B01D 53/04 (2006.01)
CPC A61M 16/101 (2014.02) [A61M 16/0003 (2014.02); A61M 16/107 (2014.02); A61M 16/208 (2013.01); B01D 53/04 (2013.01); A61M 2016/003 (2013.01); A61M 16/1045 (2013.01); A61M 2205/3334 (2013.01); B01D 2257/102 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An oxygen concentration device, comprising:
a compressor for supplying pressurized air,
an adsorption tube to which the pressurized air is supplied from the compressor and which concentrates oxygen in the pressurized air by adsorbing nitrogen in the supplied pressurized air to generate oxygen gas,
an oxygen gas tank for storing the oxygen gas generated by the adsorption tube,
a valve which adjusts an oxygen gas flow rate, which is a flow rate of the oxygen gas to be output to an outside from the oxygen gas tank, and
a processor which controls the valve so that the oxygen gas flow rate becomes a set flow rate and controls the compressor so that the pressurized air achieves a supply amount corresponding to the set flow rate, wherein
the processor, only in a start-up interval of the oxygen concentration device, controls the valve so that the oxygen gas flow rate becomes a start-up flow rate which is greater than the set flow rate, and controls the compressor so that the pressurized air achieves a start-up supply amount greater than a set supply amount,
the processor is further configured to control the compressor to supply the pressurized air in an amount and at a rate greater than a supply amount corresponding to a maximum set flow rate which is a maximum value at which the processor is configured to set the flow rate,
the processor is further configured to set the start-up flow rate to equal to or greater than the maximum set flow rate,
wherein the oxygen concentration device further comprises an end of a start-up process determination unit configured to determine an end of a start-up process in accordance with any of whether a predetermined start-up interval has elapsed and whether a predetermined oxygen concentration has been reached, and
wherein the processor is further configured to, when a determination of the end of the start-process is made, reduce the start-up supply amount to the set supply amount within 10 seconds from the determination and reduce the start-up flow rate to the set flow rate within 10 seconds from the determination.