Abstract: A process and ventilation system determine a first threshold for a manipulated variable depending on a set target value. The manipulated variable is limited to the first threshold in a first control mode. With a change of the target value to a new set target value a new first threshold is determined for the manipulated variable and the first control mode is switched to a second control mode. A second threshold is determined to limit the manipulated variable in the second control mode. An extreme value of the second threshold is different from the first threshold. A permissible phase duration is determined for the second control mode. After the phase duration, the second control mode is switched to a third control mode. The manipulated variable is limited to the new first threshold in the third control mode. A corresponding ventilation system is also provided.

Abstract: A device (11) on a circuit system (8) for an anesthesia system (100), is configured to increase an amount of oxygen (O2) in the circuit system (8) in a special operating situation. The anesthesia system includes a control unit (20) that determines an individual ventilation situation and determines, on the basis of measured values provided by a sensor system (30), whether the special operating situation (74) is present.

Abstract: A scavenging system and a process have a conveying state with a suction arrangement (200) conveying a fluid from a source to a sink. In a rest state, the conveyance of fluid is prevented or interrupted. A plug (15) can be plugged into a socket (16), and, if plugged in, a fluid connection is established between the source and the sink. In a conveying switching position, a switching element (38.1, 38.2) sets the scavenging system to the conveying state, and in a rest switching position to the rest state. A passive resetting element (39.1, 39.2) holds the switching element in the conveying switching position in a rest state. A switched-on actuator (42.1, 42.2) switches the switching element to the rest switching position against a resetting force of the resetting element. A signal-processing control unit detects an event that no fluid is escaping from the source and switches the actuator on.

Abstract: A ventilation system for artificial ventilation of a patient (Pt) includes an inspiratory fluid guide unit (30) that connects a ventilator (1) to a patient-side coupling unit (9). A control unit (4) determines a measure for a net inspiratory volume flow which the ventilator (1) generates and which flows through the inspiratory fluid guide unit (30). Depending on the net inspiratory volume flow, the control unit (4) controls an inspiratory display element (40) on the inspiratory fluid guide unit (30). The actuated inspiratory display element (40) displays two indicators in a visually perceptible manner, namely an indicator for the determined net inspiratory volume flow and an indicator for the direction of flow through the inspiratory fluid guide unit (30).

Abstract: A taking up/receiving system (100) and a process for taking up/receiving of gas from a medical apparatus (1) are provided. The taking up/receiving system includes a feed line (6), a discharge line (8), a filter unit (4) with a filter and at least one buffer storage device. The feed line establishes a fluid connection between the medical apparatus and the filter unit. The discharge line establishes a fluid connection between the filter unit and a fluid taking up/receiving unit (7). The gas is discharged from the medical apparatus and is passed through the feed line to the filter unit and from there through the discharge line to the fluid taking up/receiving unit. The filter filters at least one gas component out of the gas that is passed through the filter unit. The one or more buffer storage device absorbs and again discharges gas from time to time.

Abstract: An taking up/receiving system (100) and a process for taking up/receiving of gas from a medical apparatus (1) are provided. The taking up/receiving system includes a feed line (6), a discharge line (8), a filter unit (4) with a filter and at least one buffer storage device. The feed line establishes a fluid connection between the medical apparatus and the filter unit. The discharge line establishes a fluid connection between the filter unit and a fluid taking up/receiving unit (7). The gas is discharged from the medical apparatus and is passed through the feed line to the filter unit and from there through the discharge line to the fluid taking up/receiving unit. The filter filters at least one gas component out of the gas that is passed through the filter unit. The one or more buffer storage device absorbs and again discharges gas from time to time.

Abstract: A 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. With a transition from deactivated assistance mode to activated assistance mode, a 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 volume flow, 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 is undershot and is reduced when the surrounding range is exceeded.

Abstract: A converter assembly has a rectifier receiving an external alternating voltage of a specified feed frequency, an inverter, and a DC link with a DC link capacitor electrically between the rectifier and the inverter. An absorption circuit, which is connected in parallel with the DC link capacitor, forms a series resonance circuit and is of low impedance at a series resonance frequency twice the feed frequency. The absorption circuit forms a parallel resonance circuit together with the DC link capacitor and has high impedance at a parallel resonance frequency. A damping absorption circuit, connected in parallel with the DC link capacitor and the absorption circuit, includes an ohmic resistor and is magnetically coupled to the absorption circuit. A voltage dropping at the absorption circuit at the parallel resonance frequency is transformed by the magnetic coupling to the damping absorption circuit. The resistor damps the parallel resonance of the absorption circuit.

Abstract: An absorption system (100) and a process for absorption of gas from a medical apparatus (1) are provided. The absorption system includes a feed line (6), a discharge line (8), a filter unit (4) with a filter and at least one buffer storage device. The feed line establishes a fluid connection between the medical apparatus and the filter unit. The discharge line establishes a fluid connection between the filter unit and a fluid absorption unit (7). The gas is discharged from the medical apparatus and is passed through the feed line to the filter unit and from there through the discharge line to the fluid absorption unit. The filter filters at least one gas component out of the gas that is passed through the filter unit. The one or more buffer storage device absorbs and again discharges gas from time to time.

Abstract: A converter assembly has a rectifier receiving an external alternating voltage of a specified feed frequency, an inverter, and a DC link with a DC link capacitor electrically between the rectifier and the inverter. An absorption circuit, which is connected in parallel with the DC link capacitor, forms a series resonance circuit and is of low impedance at a series resonance frequency twice the feed frequency. The absorption circuit forms a parallel resonance circuit together with the DC link capacitor and has high impedance at a parallel resonance frequency. A damping absorption circuit, connected in parallel with the DC link capacitor and the absorption circuit, includes an ohmic resistor and is magnetically coupled to the absorption circuit. A voltage dropping at the absorption circuit at the parallel resonance frequency is transformed by the magnetic coupling to the damping absorption circuit. The resistor damps the parallel resonance of the absorption circuit.

Abstract: A 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. With a transition from deactivated assistance mode to activated assistance mode, a 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 volume flow, 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 is undershot and is reduced when the surrounding range is exceeded.

Abstract: A ventilator or anesthesia device and method create a reference state and record a measured value as a reference value. A gas delivery unit is activated after the ending of the reference state to build up pressure in a breathing circuit. A comparison measured value is determined with a pressure or flow sensor. A deviation of the measured value from the reference value in relation to a predefined or predefinable expected value is monitored based on the comparison. A warning message is issued depending on a result of the comparison. A drop in pressure in the breathing circuit is caused after the recording of the comparison measured value and a further comparison measured value is recorded following the drop in pressure. A deviation of the further comparison measured value from the reference value leads to a further warning message when the deviation does not correspond to the further expected value.

Abstract: An electrical energy production system includes a diesel engine that is functionally coupled to a three-phase current generator device, the generator device is functionally coupled to an electrical intermediate circuit, the electrical intermediate circuit is functionally coupled to an electric consumer device and a passive rectifier and a pulse rectifier are connected in parallel in the intermediate circuit. An electrical intermediate circuit voltage of the electrical intermediate circuit is provided, in a defined manner, from the passive rectifier and the pulse rectifier. A set point or nominal value of the electrical intermediate circuit voltage is supplied to the pulse rectifier and the pulse rectifier provides a defined portion of the electrical intermediate circuit voltage. A method for operating an electrical energy production system and a computer program product are also provided.

Abstract: A method and a control program for operating an anesthesia apparatus, as well as an anesthesia apparatus (12), which operates according to the method are provided. The anesthesia apparatus includes a breathing gas feed unit (22) intended for displacing a breathing gas volume in a breathing circuit (10). A piston (23) brings about the displacement of the breathing gas. Switching over between a first mode of operation and a second mode of operation during the return of the piston (23) allows for a presetting of a corresponding piston return velocity. The piston return velocity depends on a volume flow in an exhalation branch (34) of the breathing circuit (10) in the first mode of operation. The piston return velocity depends on a minimally necessary piston return velocity in the second mode of operation.

Abstract: A method and a control program for operating an anesthesia apparatus, as well as an anesthesia apparatus (12), which operates according to the method are provided. The anesthesia apparatus includes a breathing gas feed unit (22) intended for displacing a breathing gas volume in a breathing circuit (10). A piston (23) brings about the displacement of the breathing gas. Switching over between a first mode of operation and a second mode of operation during the return of the piston (23) allows for a presetting of a corresponding piston return velocity. The piston return velocity depends on a volume flow in an exhalation branch (34) of the breathing circuit (10) in the first mode of operation. The piston return velocity depends on a minimally necessary piston return velocity in the second mode of operation.

Abstract: A ventilator or anesthesia device and method create a reference state and record a measured value as a reference value. A gas delivery unit is activated after the ending of the reference state to build up pressure in a breathing circuit. A comparison measured value is determined with a pressure or flow sensor. A deviation of the measured value from the reference value in relation to a predefined or predefinable expected value is monitored based on the comparison. A warning message is issued depending on a result of the comparison. A drop in pressure in the breathing circuit is caused after the recording of the comparison measured value and a further comparison measured value is recorded following the drop in pressure. A deviation of the further comparison measured value from the reference value leads to a further warning message when the deviation does not correspond to the further expected value.

Abstract: A process and system are provided for transmitting monitoring states between respirators. The process includes the detection of and recording of monitoring states of a monitoring unit (5) of at least a first monitoring period (10) of a first respirator (2). There is an assignment of an identification to the monitoring states of the monitoring unit (5) of the at least first monitoring period (10) of the first respirator (2). There is a transmission of the monitoring states of the monitoring unit (5) of the at least first monitoring period (10) of the first respirator (2) to a second respirator (3). This is followed by a setting of the monitoring unit (5) of the second respirator (3) corresponding to the transmitted monitoring states of the monitoring unit (5) of the at least first monitoring period (10) of the first respirator (2). This is then followed by a repetition of steps for the monitoring states of the monitoring unit (5) of each additional monitoring period (10) of the first respirator (2).

Abstract: The invention as outlined below serves to introduce postmortem online identity handling that is capable of handling multiple clients. With this concept, the operator is able to create a Web or client application to delete the online identities of a deceased person with certified online providers. In the process, the deceased's contracts with online portals that require payment are canceled, existing credits are returned to heirs, or all other identifiable online accounts are deleted or deactivated.

Abstract: A monitoring device for monitoring a therapy device, for example, an anesthesia device or a respirator, is provided by which an alarm device for triggering an alarm when the value drops beyond a warning limit (4) is automatically activated when a determined therapy parameter drops beyond this warning limit (4). The warning limit (4) is set automatically in this case. In addition, a therapy device monitored by the monitoring device and especially an anesthesia device as well as a respirator are provided. A process for triggering an alarm as well as a process for treating a patient is also provided.

Abstract: A device for suppressing high-frequency currents in infeed lines to an inverter having a common-mode impedance. A magnetic core is configured for inductively coupling the infeed lines, wherein the current load on the common-mode impedance is minimized. A snubber impedance unit is inductively coupled to the common-mode impedance and has a frequency-dependent impedance.