| 摘要 |
A method and system for supplying gas to an external machine such as an anaesthetic machine in which gas is supplied to and exits from the machine ( 3 ) such that it forms part of a closed gas conduit loop ( 10 ) in which there is a variable volume reservoir ( 7 ) which adjusts and maintains pressure in the gas supply in the conduit ( 10 ) The variable volume reservoir ( 10 ) incorporates an excess pressure safety and an under pressure safety valve. |
