Abstract: A monitoring system (100) with an associated infrared-optical gas measuring device (72) is used in a breathing gas supply system in aircraft. During a coordinated operation of the monitoring system (100) and the infrared-optical gas measuring device (72), quantities of breathing gas mixture (10) are supplied to the infrared-optical gas measuring device (72). The infrared-optical gas measuring device (72) is configured for metrological detection of a selected target gas with the aid of substitute calibration values (79).

Abstract: A monitoring system (100) with an associated catalytic gas measuring device (72) is used in a breathing gas supply system in aircraft. During a coordinated operation of the monitoring system (100) and the catalytic gas collection device (72), quantities of breathing gas mixture (10) are supplied to the catalytic gas measuring device (72). The catalytic gas measuring device (72) is configured for metrological detection of a selected target gas with the aid of conversion factors (79).

Abstract: A sensor arrangement and a measuring process measure the respective concentration of three gas components of a gas sample (Gp). One gas component is a paramagnetic gas. The gas sample (Gp) is fed into a measuring chamber (2). A magnetic field with an oscillating magnetic field strength is applied to the measuring chamber (2). The thermal conductivity of the gas sample (Gp) and the magnetically modulated thermal conductivity of the gas sample in the measuring chamber (2) are measured. The three concentrations of the three gas components are determined using the predetermined densities of the three gas components as well as the measured thermal conductivity, the measured magnetically modulated thermal conductivity and the measured density.

Abstract: A measuring system (60, 69, 68) determines gas concentrations as part of a monitoring system for breathing gases or a breathing gas mixture (10). The measuring system (60, 69, 68) is capable of determining an oxygen concentration (908) in the breathing gas mixture (10) under variable pressure conditions (599).

Abstract: A measuring system (60, 69, 68) determines gas concentrations as part of a monitoring system for monitoring the breathing gas supply of an aircraft pilot in an aircraft. The measuring system (60, 69, 68) is capable of determining an oxygen concentration (909) in the breathing gas mixture (10) of the aircraft pilot under variable operating temperatures (699) during flight operations of the aircraft.

Abstract: A monitoring system (100) has an associated gas collection device (81) for use in a breathing gas supply in aircraft. A process (900) provides coordinated operation of the monitoring system (100) and gas collection device (81). During coordinated operation of the monitoring system (100) and gas collection device (81), a module (50) for gas transportation is activated (902) and the module (55) for gas quantity control is activated (903) for supplying defined quantities (80) of breathing gas mixture to the gas collection device (81) with the gas collection containers (82, 83, 84).

Abstract: A monitoring system (100) with a gas measuring device (72) as well as to a process for operating a monitoring system (100). The monitoring system (100) is used to monitor the breathing gas supply of an airplane pilot in an aircraft. The principal components in the breathing gas (10) are formed by air (5), i.e., essentially defined quantities of oxygen, carbon dioxide, nitrogen and moisture or water vapor. On the one hand, information on the exact quantity of oxygen and carbon dioxide in the breathing gas mixture is essential to assess whether a breathing gas mixture for an airplane pilot meets specific requirements. The monitoring system (100) with the gas measuring device (72) offers possibilities for obtaining indications or estimates (44) in respect to possible contaminations by additional components in the breathing gas supply of an airplane pilot.

Abstract: A patient module (20) is intended for use together with a pressure source (12). The patient module (20) couples the pressure source (12) for flow to a patient interface (14) that can be connected to the airways of a patient. The patient module (20) includes at least one valve device (30), which can be controlled by means of a piezo pump, which acts as a valve drive (34) and can preferably be operated at a high frequency. The at least one valve device (30) acts as an exhalation valve (28).

Abstract: A measurement system (100) determines gas concentrations in a gas mixture of a gas sample by utilizing thermal conductivities and paramagnetic effects of thermal conductivities in the gas mixture involving data sets (203). A circuit arrangement provides measured values with an AC signal component and with a DC signal component to a calculation and control unit (200). An oxygen concentration in the gas mixture of the gas sample is determined based on the standardized AC signal components and a concentration of another gas in the gas mixture of the gas sample is determined based on the standardized DC voltage signal components. Output signals are generated by the calculation and control unit, which indicate the determined oxygen concentration and the determined concentration of another gas in the gas mixture of the gas sample.

Abstract: A ventilation arrangement and a ventilation process provide ventilation for a patient. A first segment of a fluid guiding unit connects a fluid delivery unit to a valve (10). A second segment connects the valve (10) to a coupling unit on the patient side. A position of a valve body (19) of the valve (10) relative to a valve body seat (18) depends on an inlet pressure (P2) and on a control pressure (P1) and influences the volume flow (Vol?) through the second segment. An actuator (15) changes the control pressure (P1). A control signal (Sigcon) for the actuator (15) is generated with the objective of ensuring that the pressure or volume flow (Vol?) in the second segment assumes a predetermined value. A compensation signal (Sigcomp) for the actuator (15) is generated with the objective of preventing the valve body (19) from vibrating relative to the valve body seat (18).

Abstract: A pump system (120) has a central pump unit (110), with which at least one hook-up unit (130). The at least one hook-up unit (130) is from a group of a plurality of hook-up units (130) that can be combined in modular form for setting an operating point of a pump (10) that forms the pump unit (110). A method uses such a hook-up unit (130) in a pump system (120) for setting an operating point of the pump unit (110) thereof. A medical device is provided with such a pump unit (110) or with such a pump unit (110) and at least one hook-up unit (130) combined with the pump unit (110).

Abstract: A process for ventilating a patient as well as a device—patient module (20)—operating according to the process, wherein, for example, a body weight value concerning an estimated body weight of the patient is transmitted to a patient module (20) intended for ventilating the patient, wherein the patient module (20) automatically selects ventilation parameters (52) fitting the body weight value on the basis of the body weight value and wherein the ventilation of the patient is carried out with the selected ventilation parameters (52).

Abstract: A mask device (10) for a ventilator (100) for ventilating a patient (11), has a breathing mask (12) for being positioned over the mouth (13) and over the nose (14) of the patient (11). A nasal cannula device (15) sends a ventilation gas into the nose (14) of the patient (11). A holding device (16) holds the nasal cannula device (15) at the breathing mask (12). The holding device (16) for the mask device (10), a ventilator (100) with the mask device (10) as well as a process for setting the mask device (10) are presented.

Abstract: A process for determining a carbon dioxide concentration in measured gas, includes branching off the gas from a main line (15) of a medical device (12) through a branch line (14) to a sensor unit (11) during an inhalation phase and an exhalation phase of a person (13). The gas is delivered by a fluid delivery unit that is adaptively set taking an airway pressure in the main line into consideration for generating a uniform volume flow and/or gas pressure of the measured gas in the branch line to the sensor unit during the inhalation phase and the exhalation phase. The concentration of carbon dioxide in the measured gas is determined by the sensor unit. A determination device (10), the medical device, a setting unit (26), a computer program product (29) and a storage device (30) with the program may each be provided to carry out the process.

Abstract: A sensor arrangement (10) for a medical device (12), includes a sensor unit (11) for determining a carbon dioxide concentration in the measured gas, a branch line (14) for branching off the measured gas from a main line (15) of the medical device (12) and for sending the branched-off measured gas to the sensor unit (11). At least one heat and moisture exchanger filter (16, 17) filters the branched-off measured gas. A medical device (12) with the sensor arrangement (10), an exhalation valve (25) for the medical device (12) as well as a process for determining a carbon dioxide concentration are also provided.

Abstract: A device (1), for a ventilation system (100), includes an inhalation valve (10) with an inhalation opening (11) for flow (301) of breathing gas (300) into a pressure chamber (110) to provide breathing gas in the pressure chamber for ventilating a patient (200). A closing element (12) is arranged movably, to close the inhalation opening to flow in a closed position (320) and to at least partially release flow in an open position (310). A transmission device (13) is connected via a connection element (14) to the closing element, to hold the closing element in the closed position in a starting position of the transmission device, such that the inhalation valve is normally closed. A control pressure source (130) provides a control pressure (PS) in a control pressure chamber (15) for the transmission device to move the transmission device out of the starting position by the control pressure.

Abstract: A micropump system (100) for a compressible fluid (102) includes a plurality of micropumps (110), rigid flow duct elements (120), a control unit (130), and one or two printed circuit boards (140). The micropumps have an intake opening (112) and an outlet opening (114). The rigid flow duct elements are connected to a respective micropump via a respective, elastically sealed port (122) and with the micropumps form a flow path (104) for the fluid. The one or two printed circuit boards are arranged and configured to electrically connect the control unit to the plurality of micropumps. Each micropump is rigidly fastened to the one or two printed circuit boards via a respective fastening device. A pressure build-up of the fluid flowing through the plurality of micropumps during the use, which is cascaded due to the plurality of micropumps, is provided at a system outlet (106) of the micropump system.

Abstract: A pump system (120) has a central pump unit (110), with which at least one hook-up unit (130). The at least one hook-up unit (130) is from a group of a plurality of hook-up units (130) that can be combined in modular form for setting an operating point of a pump (10) that forms the pump unit (110). A method uses such a hook-up unit (130) in a pump system (120) for setting an operating point of the pump unit (110) thereof. A medical device is provided with such a pump unit (110) or with such a pump unit (110) and at least one hook-up unit (130) combined with the pump unit (110).

Abstract: A connection device and process connect a patient-side coupling unit to a source/sink of a gas including oxygen. The connection device includes a valve device with a first valve (40.1) and with a second valve (40.2). A source-side fluid guide unit establishes a fluid connection between the source or the sink and the valve device. A patient-side fluid guide unit establishes a fluid connection between the patient-side coupling unit and the valve device. The valves are connected in parallel and are arranged between the two fluid guide units. A gas flows from the source through the first and/or second valve to the patient-side coupling unit or through the first and/or second valves to the sink. A control pressure is set at each valve. As a result, the time course of the volume flow downstream of the valve device follows a predefined time course.

Abstract: A process for operating a ventilator (12) and a ventilator (12) operating according to the process are provided. A pressure target value (pz) is determined during a phase of exhalation (48) as a function of a compliance (C) determined in relation to the lungs (14) of a patient being ventilated by means of the ventilator (12).