Anesthetic breathing apparatus with target value control of anesthetic agent

An anesthetic breathing apparatus comprising a touch sensitive display unit and a processing unit being operatively connected to said display unit, a breathing circuit for providing an inspiratory patient gas mixture of re-breathed gas and/or fresh gas to a patient fluidly connected to said breathing circuit, and a fresh gas supply controllable by said processing unit for supplying a flow of said fresh gas to said breathing circuit in a composition including oxygen and at least one anesthetic agent (AA), said processing unit being configured to provide on said display unit a graphical user interface including a graphical visualization comprising:

• a first user input element for receiving operator input on said touch sensitive display unit for an anesthetic target value including an end expiratory concentration of said AA (EtAA) target value and/or an end expiratory minimum alveolar concentration (MAC) target value of an end expiratory MAC (EtMAC) value of said patient
• a second user input element for receiving operator input on said touch sensitive display unit for a desired control profile for said fresh gas supply for obtaining at least said anesthetic target value;
• wherein the control profile includes an operator selected time to reach the anesthetic target value and/or an operator selected control path to reach said anesthetic target value from a current EtAA value or EtMAC value, and wherein said control profile includes a desired rate of change for obtaining at least one of said EtAA and/or said EtMAC value;
• and
• a current time and an estimated duration or end time when at least one of said targets is reached.