发明名称 |
MEDICAL GAS RECIRCULATION SYSTEM |
摘要 |
A medical device (103) is supplied (105) with a gas mixture from a higher pressure section of a main circuit (102) in which medical gas recirculates through the higher pressure section and a lower pressure section. Decontaminated spent gas is returned to the lower pressure section of the ma in circuit. Pressure in the higher pressure section is maintained by a pressure maintaining valve (141) and gas flow in the main circuit is maintained by a volume regulator (145) in the lower pressure section. The composition of the recirculating gas mixture is maintained by addition of respective feed gases in response to concentration and/or volume variation measurement. The method has particular application to the feed of a binary oxygen/xenon mixture to a cardiopulmonary bypass oxygenator or an artificial ventilator. |
申请公布号 |
CA2484066(A1) |
申请公布日期 |
2003.11.13 |
申请号 |
CA20032484066 |
申请日期 |
2003.05.01 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
KERR, STUART ALEXANDER;DOWNIE, NEIL ALEXANDER |
分类号 |
A61M1/16;A61M1/36;A61M16/00;A61M16/10;A61M16/12;A61M16/22 |
主分类号 |
A61M1/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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