US 12,383,770 B2
Ventilation apparatus and mask
Marc Studer, Lucerne (CH); Gunnar Jansen, Bulach (CH); Tim Wakeford, London (GB); and Rob Boyle, London (GB)
Assigned to AVIATION WORKS LTD, London (GB)
Appl. No. 17/261,106
Filed by AVIATION WORKS LTD, London (GB)
PCT Filed Jul. 19, 2019, PCT No. PCT/EP2019/069538
§ 371(c)(1), (2) Date Jan. 18, 2021,
PCT Pub. No. WO2020/016422, PCT Pub. Date Jan. 23, 2020.
Claims priority of application No. 18184568 (EP), filed on Jul. 19, 2018.
Prior Publication US 2021/0330996 A1, Oct. 28, 2021
Int. Cl. A62B 7/14 (2006.01); A61M 16/00 (2006.01); A61M 16/06 (2006.01); A61M 16/10 (2006.01); A61M 16/12 (2006.01); A61M 16/20 (2006.01); A61M 16/22 (2006.01); A62B 7/00 (2006.01); A62B 9/00 (2006.01); A62B 9/02 (2006.01); A62B 19/00 (2006.01); A62B 23/00 (2006.01)
CPC A62B 7/14 (2013.01) [A61M 16/0057 (2013.01); A61M 16/06 (2013.01); A61M 16/1005 (2014.02); A61M 16/105 (2013.01); A61M 16/1075 (2013.01); A61M 16/125 (2014.02); A61M 16/208 (2013.01); A61M 16/22 (2013.01); A62B 7/00 (2013.01); A62B 9/003 (2013.01); A62B 9/02 (2013.01); A62B 19/00 (2013.01); A62B 23/00 (2013.01); A61M 2202/0266 (2013.01); A61M 2205/7536 (2013.01)] 36 Claims
OG exemplary drawing
 
1. An apparatus for preparing a ventilation gas mixture that comprises:
a gas mixing device;
a first gas feed arranged to supply a first gas to the gas mixing device;
an air inlet configured to receive exhaled air from a person;
a combination carbon dioxide capturing system comprising a carbon dioxide pressure swing absorption system and a carbon dioxide temperature swing absorption system, wherein the combination carbon dioxide capturing system comprises:
a first gas reservoir arranged to store carbon dioxide from the air received in the air inlet and further arranged to supply the stored carbon dioxide to the gas mixing device via a second gas feed; and
a combination nitrogen capturing system comprising a nitrogen pressure swing absorption system and a nitrogen temperature swing absorption system, wherein the combination nitrogen capturing system comprises:
a second gas reservoir arranged to receive ambient air via a second gas reservoir inlet and further arranged to supply nitrogen reduced ambient air to the gas mixing device;
wherein the gas mixing device is arranged to combine the first gas with the carbon dioxide in order to prepare the ventilation gas mixture.