| 摘要 |
An apparatus ( 1 ) for administering a gas to a person or an animal, is provided with a chamber ( 9 ) for receiving a quantity of gas to be administered. The chamber is provided with a gas line ( 3 ) for supplying gas from a source to the chamber ( 9 ) and elements for pressurizing the gas in the chamber. The chamber ( 9 ) is connected to a breathing tube ( 5 ) for supplying pressurized gas from the chamber ( 9 ) to the person or the animal, wherein the breathing tube ( 5 ) connects to a discharge channel ( 26 ), for discharging gas exhaled by the person or the animal, via a valve ( 11 ), which restricts the flow of exhaled gas from the breathing tube ( 5 ) to the discharge channel ( 26 ) in order to build up gas pressure in the breathing tube ( 5 ) during exhalation. |
