Patent ID: 11925765
Assignee: KONINKLIJKE PHILIPS N.V.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 13:
14. A mechanical ventilation method, comprising:
a gas delivery apparatus configured for use with a mechanical ventilator having an atmospheric inlet for drawing in atmospheric gas;, the gas delivery apparatus comprising: a connecting device configured to connect to an oxygen supply and an air supply;
wherein the connecting device comprises a mixer and a reservoir;
wherein the reservoir is configured to hold a volume of the mixed air and oxygen gas and is connected with a flow path of the mixed air and oxygen gas to the atmospheric inlet of the mechanical ventilator, and the reservoir is open to atmosphere;
wherein the method comprises: mixing, with the mixer, air from the air supply and oxygen gas from the oxygen supply to generate mixed air and oxygen gas;
flowing the mixed air and oxygen gas to the atmospheric inlet of the mechanical ventilator;, and adjusting a flow rate of the mixer to control a fraction of oxygen in the mixed air and oxygen gas;
wherein the volume of the mixed air and oxygen gas held by the reservoir is greater than a volume of the flow path of the mixed air and oxygen gas to the atmospheric inlet of the mechanical ventilator.