Anesthesia system and process for controlling gas quantities in an anesthesia system
AssigneeDrägerwerk AG & Co. KGaA
InventorsAndreas KATER, Björn BARGSTÄDT
Life of this patent
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Abstract
A process controls gas quantities in a dosing and supply of quantities of oxygen for an anesthesia system. In a sequence of steps (101, 102, 103), a verification is carried out to determine whether there is a reason (11) for a reduction in the quantity of oxygen provided in the breathing gas and, depending on the result of the verification, the supply of quantities of oxygen is limited.
Claims20
A process for controlling gas quantities when dosing and supplying quantities of oxygen in a line system by means of a mixing unit for mixing and dosing a gas mixture of breathing gas of at least two gas components, the process comprising the steps of:
- in a first step carrying out a verification as to whether there is a reason for a reduction in an amount of oxygen currently present in the line system or in the breathing gas;
- in a second step, if it is verified that there is a reason for a reduction in an amount of oxygen currently present in the line system, generating an output signal, which indicates this reason and providing the generated output signal to the mixing unit for mixing and dosing the gas mixture;
- and
- in a third step, effecting a limitation of a supply of quantities of oxygen into the line system, based on the generated output signal.
An anesthesia system comprising:
- a line system configured to guide a beathing gas for a fluidic connection to a patient;
- a mixing unit connected to the line system, the mixing unit being configured to mix and dose a gas mixture of at least two gas components, including quantities of oxygen, into the line system;
- a sensor system for gas analysis, the sensor system being operatively connected to the line system;
- and
- a control unit operatively connected to the sensor system and operatively connected to the mixing unit, the control unit being configured to:
- control the mixing unit for mixing and dosing of the gas mixture into the line system;
- verify whether there is a reason for reducing an amount of oxygen currently present in the line system or in the breathing gas;
- generate an output signal upon verifying the reason for reducing an amount of oxygen currently present in the line system, the output signal comprising an indication of the reason, and output the generated output signal to the mixing unit;
- and
- control a limiting of oxygen supplied into the line system.
A process for controlling gas quantities supplied by an anesthesia system, the process comprising the steps of:
- providing an anesthesia system, which comprises:
- a line system configured to guide a beathing gas for a fluidic connection to a patient;
- a circuit system connected to the line system;
- a mixing unit connected to the line system via the circuit system, the mixing unit being configured to mix and dose a gas mixture of at least two gas components, including quantities of oxygen, into the circuit system, wherein the mixing device is controllable to selectively mix and dose medical air from a medical air source and oxygen from an oxygen source into the circuit system;
- a sensor system for gas analysis, the sensor system being operatively connected to the line system and/or the circuit system;
- and a control unit operatively connected to the sensor system and operatively connected to the mixing unit;
- with the control unit, controlling the mixing unit for mixing and dosing of the gas mixture into the line system;
- with the control unit, verifying whether there is a reason for reducing an amount of oxygen currently present in the line system or in the breathing gas;
- with the control unit, generating an output signal upon verifying the reason for reducing an amount of oxygen currently present in the line system, the output signal comprising an indication of the reason, the output signal being output to the mixing unit;
- and
- with the control unit, controlling a limiting of oxygen supplied into the circuit system.
Dependencies are inferred from the claim text.