Apparatus for the administration of a respiratory gas and at least one anaesthetic

摘要

An apparatus (4) for the administration of a respiratory gas and at least one anaesthetic to a living being, in which apparatus (4) the anaesthetic is vaporized in a vaporizing unit (34) by respiratory gas, acquires a safer and more accurate control of the anaeshtetic concentration level in that a regulating valve controls the flow of respiratory gas through the vaporizing unit (34) and in that a regulating device (36) controls the regulating valve with such accuracy that a preselected concentration of vaporized anaesthetic in the respiratory gas is substantially fully maintained. To further increase the control of the apparatus it may also be provided with a feedback system for both the anaesthetic concentration level and the total flow. IMAGE