发明名称 |
Anaesthesia delivery system |
摘要 |
Efficient management of breathing gases and anesthesia is achieved in an anesthesia delivery system which incorporates a flow minimization routine. The breathing circuit is provided with a pop-off valve and a flow sensor for detecting the pop-off flow. The flow rate of fresh gas into the breathing circuit is controlled, preferably via a digital computer, to minimize the amount of gas exhausted from the circuit. A control routine determines the minimal fresh gas flow necessary to maintain appropriate oxygen concentration, anesthetic agent concentration pop-off flow. A minimum value for the fresh gas flow may also be input to the control system. A fresh gas flow boost routine provides quick responses to charges in the user-set oxygen and agent concentrations. A circuit fill routine provides fresh gas to fill the breathing circuit until pop-off flow is sensed. <IMAGE> |
申请公布号 |
EP0835672(A2) |
申请公布日期 |
1998.04.15 |
申请号 |
EP19970307647 |
申请日期 |
1997.09.29 |
申请人 |
OHMEDA INC. |
发明人 |
THAM, ROBERT Q.;KEITEL, TODD;BATHE, DUNCAN P.L. |
分类号 |
A61M16/00;A61M16/01;A61M16/10;A61M16/12;A61M16/18;A61M16/22 |
主分类号 |
A61M16/00 |
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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