| CPC A61M 16/0045 (2013.01) [A61M 16/0063 (2014.02); A61M 16/024 (2017.08); A61M 16/202 (2014.02); A61M 16/1055 (2013.01); A61M 2202/0208 (2013.01); A61M 2205/3334 (2013.01); A61M 2205/502 (2013.01); A61M 2230/205 (2013.01)] | 20 Claims |
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1. A hypoxic training apparatus, comprising:
a gas processor configured to produce gas according to a given oxygen ratio and to provide processed gas to an outlet junction; and
a controller communicatively coupled with the gas processor and configured to:
control the gas processor to produce first gas according to a first training oxygen ratio during a first training period;
determine, based on one or more first readings from a pulse oximeter, that a blood oxygen saturation level of a subject has fallen to a first predetermined blood saturation level during the first training period;
in response to determining that the blood oxygen saturation level of the subject has fallen to the first predetermined blood saturation level during the first training period, control the gas processor to produce second gas according to a normoxic oxygen ratio during a first recovery period;
determine, based on one or more second readings from the pulse oximeter, that the blood oxygen saturation level of the subject has fallen more than a predetermined threshold below the first predetermined blood saturation level during the first recovery period;
in response to determining that the blood oxygen saturation level of the subject has fallen more than the predetermined threshold below the first predetermined blood saturation level during the first recovery period, determine a second training oxygen ratio for a second training period based on increasing the first training oxygen ratio; and
in response to determining that the blood oxygen saturation level of the subject has risen to a second predetermined blood saturation level higher than the first predetermined blood saturation level during the first recovery period, control the gas processor to produce third gas according to the second training oxygen ratio during the second training period.
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