Surgery – Respiratory method or device – Means for cooling respiratory gas or respiration device
Patent
1995-03-20
1996-05-28
Burr, Edgar S.
Surgery
Respiratory method or device
Means for cooling respiratory gas or respiration device
12820329, 12820422, 12820512, 12820527, 128910, A61M 1600
Patent
active
055201695
ABSTRACT:
The invention is directed to an anesthesia arrangement having a pump device for returning preselected gaseous components from an expiration line 2 of the anesthesia apparatus 1 into a first pressure vessel 17. The anesthesia arrangement is so improved that the rinsing losses are minimized and the anesthetic agent is available at constant concentration. The arrangement includes a second pressure vessel 19 connected downstream of the first pressure vessel 17 and a compressor 18 for pumping the gaseous components from the first pressure vessel into the second pressure vessel. The compressor 18 and a cooling unit 20 adjust the operating parameters of pressure and temperature so that at least the anesthetic agent is present in the liquid phase in the second pressure vessel.
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patent: 4905685 (1990-03-01), Olsson et al.
patent: 5044361 (1991-09-01), Werner et al.
Bader Stefan
Georgieff Michael
Marx Thomas
Burr Edgar S.
Dragerwerk Aktiengesellschaft
Ottesen Walter
Raciti Eric P.
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