Abstract: An incubator for premature and newborn patients is provided with a heater (6), and a fresh air flow (13) fed in with oxygen metering, characterized in that the incubator has an electrically operated oxygen concentrator (12), and an oxygen sensor (5) for measuring the oxygen concentration in the incubator, wherein the oxygen metering device (7) meters the oxygen released by the oxygen concentrator (12) into the fresh air flow (13) fed into the incubator.

Abstract: A device and process are provided for determining the concentration of at least one gas component in a breathing gas mixture. The device is used especially to determine the concentration of a trace gas for a lung function measurement. The requirements on such a device are compact design with low weight, and the requirement on the process is high speed of measurement. For the case of the determination of the concentration of a gas component in a breathing gas mixture, the device has two detectors designed as thermopiles (3, 4) for the infrared optical radiation of a radiation source (1), of which the first thermopile (3) is used alternatingly as a reference detector and for the determination of the concentration of a trace gas for the lung function measurement, and the second thermopile (4) is used to determine the concentration of a gas component in the breathing gas mixture.

Abstract: Breathing equipment with a circuit for breathing gas and with a flat calcium hydroxide absorber (1) is cooled by an evaporating agent with improved cooling. A gas volume flow of at least 60 L per minute is admitted to the outer surface (14) of the calcium hydroxide absorber (1) receiving the evaporating agent by at least one gas delivery device (5). The evaporating agent is delivered to the outer surface (14) of the calcium hydroxide absorber (1) by an admitted pressure from an evaporating agent reservoir (10) via at least one connection line (12).

Abstract: A reusable anesthetic container (1) has an anesthetic reserve space (2), which is provided with at least one movable wall element (3). The wall element (3) can be caused to follow the liquid anesthetic volume. In one embodiment, the movable wall element (3) is designed as a piston, which is caused to follow the anesthetic volume via a toothed piston rod (9). An elastomer ring is preferably provided on the storage container as a detent pawl for the piston rod (9). The anesthetic container (1) has a first metering element (5), which is actuated inductively by means of a complementary second metering element (6) cooperating with another metering element on the anesthesia apparatus (7) for metering the anesthetic.

Abstract: An evaporator chamber for mixing water vapor with respiratory gas has a supply opening for the respiratory gas, an inlet opening for the water vapor and an outlet opening for the humidified respiratory gas. With the evaporator chamber, an excellent mixing is achieved with the smallest possible structural volume. The evaporator chamber is configured as a hollow body (1) having an essentially circularly-shaped inner wall surface (5). The supply opening (4) on the upper end of the hollow body (1) is arranged in a manner which conducts in the respiratory gas essentially tangentially to the inner wall surface (5). The outlet opening (6) is located at the lower end of the hollow body (1) and the inlet opening (9) lies between the supply opening (4) and the outlet opening (6).

Abstract: A breathing gas humidifier system for a patient includes a replaceable, closed water reservoir (1) with stable pressure, provided for receiving a water reserve for the breathing gas humidifier system. An intermediate storage unit (4) with water is closed from the environment and is located under the water reservoir. The water reservoir (1) and the intermediate storage unit (4) have a valve (16, 14) each, with one of the valves cooperating with the other valve, so that there is a flow connection between the water reservoir (1) and the intermediate storage unit (4) only when the water reservoir (1) is received in a connector (2) of the intermediate storage unit (4). The intermediate storage unit (4) is connected via a water connection line (5) located below the water level to a heated evaporator chamber (7), which opens above the water evaporating at the boiling point into the breathing gas line to a patient.

Abstract: A process and system is provided for regulating the air temperature in an incubator (3), which accommodates a patient, especially a premature or newborn infant, and which is part of a so-called hybrid device. When the function of the hybrid device is changed over between the two device types of “closed incubator” and “open care unit,” the problem arises that the air temperature set point cannot be maintained and the patient cools down as a consequence. The process uses a heat radiation source (1), which is located outside the incubator (3), which can be closed with a hood (2) that is transparent to the radiated heat. The corresponding value measured by an air temperature sensor (5), which is used as an actual air temperature value, is evaluated by an evaluating and control unit (4) along with a value measured by a body temperature sensor (7).

Abstract: A device for releasing a gas to a respirator with a compressed gas cylinder (2), which contains the gas and has a metering valve (6). The metering valve (6) can be opened by pressure. The metering valve (6) has a tubular valve body (7) letting through the gas and has a collar (5) surrounding the valve body (7). A cylinder adapter has a locking mechanism (16) designed for fastening to the collar (5). The cylinder adapter (1) always remains associated with the corresponding compressed gas cylinder (2). This is accomplished by a predetermined breaking point with reduced strength properties being provided on the cylinder adapter (1). The breaking point is intended to destroy the locking mechanism (16) during the removal of the cylinder adapter (1) from the collar (5).

Abstract: A compact, one-part respiratory flow sensor with a small dead space volume for the simultaneous measurement of both the gas volume flow and the concentration of gas components of the respiratory flow. The respiratory flow sensor has a tubular housing (1) with two opposite windows (2, 3) which are arranged at right angles to the direction of flow and limit the respiratory flow and are formed of a material transparent to infrared radiation. An infrared sensor with an infrared radiation source (4) and with at least one infrared radiation detector (5) is connected to the housing (1). The infrared radiation source (4) irradiates one of the two windows (2, 3) of the housing (1). The infrared radiation detector (5), of which there is at least one, receives the infrared radiation of the infrared radiation source (4) after its passage through the respiratory flow and the two windows (2, 3) limiting the respiratory flow.

Abstract: A process is provided for determining the functional residual capacity (FRC) of the lungs during respiration. An environmentally friendly trace gas is used in a process and system for determining the FRC by using fluoropropanes as a trace gas. Values for the FRC can thus be calculated, resolved for individual breaths, from the expiratory trace gas concentration and the expired breathing gas volume and they can be used for determining the FRC depending on their convergence behavior.

Abstract: A device method and system are provided for measuring the body temperature in the area of the head. Reliable measured values are furnished even during movement and physical exercise. The device includes a head strap (1), whose strap elements (2, 3) are in contact at least partially as strap sections (7, 10) with the scalp of a user (4) of the headband and in which at least one of the strap sections (7) is designed for receiving a first temperature sensor (12) measuring the skin temperature.

Abstract: A reusable anesthetic container (1) has an anesthetic reserve space (2), which is provided with at least one movable wall element (3). The wall element (3) can be caused to follow the liquid anesthetic volume. In one embodiment, the movable wall element (3) is designed as a piston, which is caused to follow the anesthetic volume via a toothed piston rod (9). An elastomer ring is preferably provided on the storage container as a detent pawl for the piston rod (9). The anesthetic container (1) has a first metering element (5), which is actuated inductively by means of a complementary second metering element (6) cooperating with another metering element on the anesthesia apparatus (7) for metering the anesthetic.

Abstract: A process and system is provided for regulating the air temperature in an incubator (3), which accommodates a patient, especially a premature or newborn infant, and which is part of a so-called hybrid device. When the function of the hybrid device is changed over between the two device types of “closed incubator” and “open care unit,” the problem arises that the air temperature set point cannot be maintained and the patient cools down as a consequence. The process uses a heat radiation source (1), which is located outside the incubator (3), which can be closed with a hood (2) that is transparent to the radiated heat. The corresponding value measured by an air temperature sensor (5), which is used as an actual air temperature value, is evaluated by an evaluating and control unit (4) along with a value measured by a body temperature sensor (7).

Abstract: An anesthetic metering system includes an anesthetic reservoir (1) having an anesthetic reserve (2), which is limited by a flexible material wall and to which pressure is admitted by means of a propellant (3) acting thereon via the wall material. The anesthetic reservoir (1) has a first valve (4), which is in flow connection with the liquid anesthetic reserve (2) and can be inserted into a mounting element (6) of an anesthesia apparatus. The metered release of anesthetic to the anesthesia apparatus takes place via a volumetric nozzle (8). The present invention provides an anesthetic metering device which avoids, on the one hand, the drawbacks of the anesthetic evaporators used previously, which are to be refilled with anesthetics at the workplace, and makes possible the refilling of the anesthetic reservoir (1) at the anesthetic manufacturer, on the other hand.

Abstract: A compact, one-part respiratory flow sensor with a small dead space volume for the simultaneous measurement of both the gas volume flow and the concentration of gas components of the respiratory flow. The respiratory flow sensor has a tubular housing (1) with two opposite windows (2, 3) which are arranged at right angles to the direction of flow and limit the respiratory flow and are formed f a material transparent to infrared radiation. An infrared sensor with an infrared radiation source (4) and with at least one infrared radiation detector (5) is connected to the housing (1). The infrared radiation source (4) irradiates one of the two windows (2, 3) of the housing (1). The infrared radiation detector (5), of which there is at least one, receives the infrared radiation of the infrared radiation source (4) after its passage through the respiratory flow and the two windows (2, 3) limiting the respiratory flow.

Abstract: A treatment unit with at least two heat sources and a lying surface (4) for a patient (2) is provided such that the ratio of the heat outputs of the heat sources in relation to one another can be set in a simple manner. A heater (5) with a first temperature control circuit (9) for setting a predetermined temperature on or in the environment of the patient (2) is provided along with a heater (3) at the lying surface (4). A second temperature control circuit (12) is provided for the lying surface heater (3). A logic circuit (15) is operatively connected between the first temperature control circuit (9) and the second temperature control circuit (12), which receives the temperature actual value or the temperature set point of the first control circuit (9) as a command variable and sends a tracking value as a lying surface temperature set point to the second temperature control circuit (12) via a temperature logic function (17).

Abstract: A process is provided for determining the functional residual capacity (FRC) of the lungs during respiration. An environmentally friendly trace gas is used in a process and system for determining the FRC by using fluoropropanes as a trace gas. Values for the FRC can thus be calculated, resolved for individual breaths, from the expiratory trace gas concentration and the expired breathing gas volume and they can be used for determining the FRC depending on their convergence behavior.

Abstract: A device for releasing a gas to a respirator with a compressed gas cylinder (2), which contains the gas and has a metering valve (6). The metering valve (6) can be opened by pressure. The metering valve (6) has a tubular valve body (7) letting through the gas and has a collar (5) surrounding the valve body (7). A cylinder adapter has a locking mechanism (16) designed for fastening to the collar (5). The cylinder adapter (1) always remains associated with the corresponding compressed gas cylinder (2). This is accomplished by a predetermined breaking point with reduced strength properties being provided on the cylinder adapter (1). The breaking point is intended to destroy the locking mechanism (16) during the removal of the cylinder adapter (1) from the collar (5).

Abstract: An improved, compact and low-maintenance respiration humidifier of a simple design is proposed, which has an outer jacket with a water feed as well as a breathing gas feed line and breathing gas drain line and contains a bundle of hydrophobic hollow fibers. The breathing gas feed line and the breathing gas drain line are in a gas flow connection with the interior of the hollow fibers. The hollow fibers preferably include polytetrafluoroethylene (PTFE) and have structure for electrical heating on their outer, water-side circumferential surface.

Abstract: An evaporator chamber for mixing water vapor with respiratory gas has a supply opening for the respiratory gas, an inlet opening for the water vapor and an outlet opening for the humidified respiratory gas. With the evaporator chamber, an excellent mixing is achieved with the smallest possible structural volume. The evaporator chamber is configured as a hollow body (1) having an essentially circularly-shaped inner wall surface (5). The supply opening (4) on the upper end of the hollow body (1) is arranged in a manner which conducts in the respiratory gas essentially tangentially to the inner wall surface (5). The outlet opening (6) is located at the lower end of the hollow body (1) and the inlet opening (9) lies between the supply opening (4) and the outlet opening (6).