CONTROL SYSTEM AND PROCESS FOR CONTROLLING THE DISPENSING OF FRESH GAS FOR AN ANESTHESIA DEVICE

The invention relates to a control system and process for controlling the dispensing of fresh gas for an anesthesia device. The control system controls fresh gas dispensing for an anesthesia device, with a patient gas-measuring unit, an anesthetic-dispensing unit, a user interface, and a fresh gas r...

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Bibliographische Detailangaben
Hauptverfasser:	SCHMID ROBERT, WOLANSKY DANIEL, PILZ ULF, WRUCK NORBERT
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE
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Beschreibung
Zusammenfassung:	The invention relates to a control system and process for controlling the dispensing of fresh gas for an anesthesia device. The control system controls fresh gas dispensing for an anesthesia device, with a patient gas-measuring unit, an anesthetic-dispensing unit, a user interface, and a fresh gas regulation unit and a processing unit. With a transition from deactivated assistance mode to activated assistance mode, the processing unit receives a measured signal, a fresh gas signal and an assistance signal and calculates an end tidal anesthetic concentration over time based on a current volumeflow, a predefined volume flow and on a current end tidal anesthetic concentration and stores this as a preset curve. A fresh gas correction signal is output upon the determined current end tidal anesthetic concentration leaving a surrounding range of the preset curve. A predefined volume flow curve is changed as a function of the correction signal. The volume flow of fed fresh gas is increased when the surrounding range