Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1989-05-10
1992-03-10
Burr, Edgar S.
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
12820312, 12820512, 12820325, A61M 1600, A62B 700, F16K 3102, G05D 1102
Patent
active
050942352
ABSTRACT:
The invention relates to an anesthesia ventilating apparatus having a breathing circuit and a plurality of control loops for the anesthesia gas, the anesthesia agent and the carbon dioxide exhaled by a patient. A disconnect switch is provided for opening and closing the control loop for adjusting the anesthesia agent. When this control loop is opened, a control unit changes the desired value of the anesthetic agent to a desired flushing value thereof. The control unit includes a processor which monitors the time-dependent course of the concentration of the anesthetic agent to determine breathing circuit system parameters and then computes the adjusting parameters of a controller in the control loop for adjusting the anesthetic agent. A method of operating the apparatus is also disclosed.
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Jaklitsch Roman R.
Loughlin Patrick J.
Wallroth Carl-Friedrich
Westenskow Dwayne D.
Asher Kimberly L.
Burr Edgar S.
Dragerwerk Aktiengesellschaft
Ottesen Walter
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