Patent ID: 9694152
Date: 2017-07-04
CPC Classifications: A61M

Claim:
1. A device for supplying a spontaneously breathing patient with a gas, the device comprising: a) a gas storage unit (B) that serves to prepare and store gas to be inhaled by the patient (P), b) a metering device (A) that serves to meter gas that is to be inhaled by a patient (P) into the gas storage unit (B), c) a demand valve (D), which regulates the amount of flow of the gas from said gas storage unit (B) inhaled by a patient (P), d) a reservoir (F) that serves the purpose of taking up exhaled gas from a patient (P), e) a carbon dioxide separation unit (G), which serves to separate carbon dioxide from the exhaled gas, f) a pump (H) that serves to recycle exhaled, carbon-dioxide-purified gas to said gas storage unit (B), and g) an analysis/control unit (J), which analyzes the exhaled, carbon dioxide purified gas recycled to said gas storage unit (B) and controls said metering device (A) for monitoring gas to be inhaled into said gas storage unit (B) based on the composition of analyzed carbon dioxide purified gas.