| 摘要 |
A gas-dispensing device ( 2 ) for dispensing a gas into breathing gas, comprising a membrane ( 6 ) through which the gas can diffuse into the breating gas, is described. The gas-dispensing device ( 2 ) is simple and reliable because it contains a self-contained chamber ( 4 ) in which the gas is held at a predefined overpressure, and the membrane ( 6 ) is arranged to form a part of the chamber's ( 4 ) wall.
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