Abstract: A respiration humidifier with a base unit (2), at least one sensor (3), which is connected to the base unit (2), and a mixing chamber (4), which is designed as a mixing chamber detachable from the base unit (2), with a gas-carrying area (5), wherein the mixing chamber (4) has at least one opening (6), through which the at least one sensor (3) is in connection with the gas-carrying area (5).

Abstract: A device for supplying a patient with breathing gas, which has a housing provided with gas ducts and a corresponding cover (5), shall be improved such that the cover (5) can be manufactured in a simple manner and possesses good sealing properties. To accomplish the object, provisions are made for the cover (5) to consist of a one-piece, plate-like elastomer material and for groove-like depressions (10) extending in the direction of partitions (6) to be present as a seal for the gas ducts (8).

Abstract: A modular respiration system is provided for the mechanical respiration of a patient. The respirator system has a modular respiration module (1) for connection to the patient (20), wherein the respiration module (1) contains a respiration system (30) with a respiration drive (3), an electric energy unit (5) and a memory with a control unit (ES II). One or more stationary parts (2) are provided for detachably accommodating the complementary modular respiration module (1). At least one detachable connection interface (8) is provided for data, electric energy and breathing gas exchange between the respiration module (1) and the stationary part or parts (2) accommodating the respiration module (1).

Abstract: An operating light is provided with a basic body (1) with flat contact surfaces (2), which are oriented with mutually different angular orientations of the respective surface normals to the working point of the operating light. A printed circuit board (6), having an underside which is flat in a premounted position, has rigid sections (8) with flat upper side surfaces pointing towards a working point of the operating light and sections (7) flexible in a preferred direction, which extend between the rigid sections (8). Light-emitting diodes (9) are arranged on the rigid sections of the printed circuit board. A lens holder (22) is provided with optical lenses (13) for the light-emitting diodes (9). The rigid sections of the printed circuit board can be placed on the contact surfaces (2) of the basic body (1) in a positive-locking manner in a mounted position, so that the light-emitting diodes (9) have lighting directions corresponding to the angular orientations of the contact surface normals.

Abstract: A water trap (1) improved with respect to handling and operational safety includes: two semipermeable membranes (2) and at least one tank (7), wherein the membranes have a water penetration pressure greater than 750 hPa and are made of the same or different PTFE laminates. The gas flow is divided in a ratio between 10:90 and 25:75 into the flush-/purge branch and analysis branch to the sensors (12) and a path parallel to the sensors (12), respectively, with the aid of the membranes and downstream filter elements and via the material and configuration.

Abstract: A condensate separator is provided for a coaxial tube system, which has an inner gas duct (3) and an outer gas duct (4). A first liquid duct (10) is arranged between the inner gas duct and a first collection volume (8) and a second liquid duct (11) is located between the outer gas duct (4) and a second collection volume (9). The collection volumes (8, 9) are located with a partition (7) in between in a liquid collecting container (6).

Abstract: A respirator shall be improved concerning better utilization of the carbon dioxide absorber (3). To accomplish the object, a transponder (5), which contains data on the type of absorber, the period of use and the current state of consumption, is arranged at the carbon dioxide absorber (3). A transponder polling device (8) at the respirator (1) reads the data from the memory chip (6) and an updated state of consumption is calculated from data on the operation of the respirator and stored again in the memory chip (6).

Abstract: A medical lighting device has an operating area light (100), a central control station (11), a lighting control unit (7), a control unit (39), an image detection element (27), an image processing unit (29), reference elements (67, 69), an operating unit (200), a position sensor (25), an operating element (33) arranged at a handle (31), a marking and distance detection element (35) and a device for data transmission (13, 15, 17, 19, 21, 26, 28). A horizontal-vertical position (58) of the operating unit (200) in the room and a light marking position (38) on a reclining surface (99) are determined by the position sensor (25), the marking and distance detection element (35), the image detection element (27) combined with reference elements (67, 69) and image processing unit (29). The operating area light (100) is actuated such that an illuminated area (71) is illuminated on the reclining surface.

Abstract: A device is provided for controlling the depth of sedation of a respirated patient. The device includes a respirator (2) and a sensor array (1) for detecting the tidal volume and/or the respiration rate of the patient being respirated. A computing unit (5) is provided for calculating the measured values determined with the sensor array (1). A drug regulating unit (3), a drug dispensing unit (4), and a central control device (6) are provided. The central control device (6) has stored desired values for the drug concentration to be dispensed as a function of a preselected depth of sedation corresponding to the corresponding variability over time of the tidal volume and/or respiration rate. The drug regulating unit (3) sets the drug dispensing unit (4) as a function of the tidal volume detected and/or the respiration rate for a preselected depth of sedation of the patient.

Abstract: A method for operating an anesthesia/ventilation apparatus (11) avoids cardiogenic triggering of a triggered ventilation stroke. An apparatus (11) for carrying out the method of the invention is also disclosed.

Abstract: A contactless temperature-measuring device especially for a respiration humidifier with a flow channel for breathing gas, which is improved in respect to handling and reliability of measurement. The device includes: a hollow body (1), which is closed towards the flow channel (2, 6), extends into the flow channel (2, 6) for assuming the temperature in the flow channel (2, 6); and an infrared detector (3, 7) is directed toward the inner surface of the hollow body (1) extending into the flow channel (2, 6) for the contactless detection of the temperature of the hollow body (1).

Abstract: A breathing tube for a sensor (9) with a horizontally extending grip element (11) shall be improved such that the sensor (9) assumes a preferred position in relation to the connecting component (1). To accomplish the object, a wall section (7), which extends flush and at the level of grip element (11), is provided at the connecting component.

Abstract: A medical workstation and workstation system for patients includes a bed for positioning the patient in the lying position, a plurality of mobile work units, which are connected to the bed, a control unit, which is arranged at the bed and which can be connected via a first supply cable to a stationary media port, on the one hand, and via a second supply cable to a mobile media port, on the other hand, for supplying a work unit. The control unit is designed as a distribution unit, to which a plurality of mobile work units (4, 4?) are connected via connection cables.

Abstract: A medical electrode is provided for detecting and transmitting electric pulses from the body surface of a patient to an electric pulse processor. The medical electrode includes an outer carrier and at least one inner carrier (3, 3?, 3?). The outer carrier and the inner carrier are connected at a defined number of geometrically distributed points (2). The points (2) form an outer edge (4) of the inner carrier and are perforated, so that the outer carrier and the inner carrier can be separated at these points (2). An adhesion area (5) is formed on the underside of the outer carrier (1) and of the inner carrier for adhering the medical electrode to the patient body surface. A contact element (7) is provided with a conductive area arranged concentrically to the contact element (7) for establishing contact with the body surface of the patient. The contact element (7) and the conductive area (8) are arranged within the inner carrier.

Abstract: A method for automatically determining the resistance of the respiratory system of a spontaneously breathing intubated patient. The method includes measuring flow (V?) and airway pressure (Paw)) as a function of time; determining the airway pressure at the end of the occlusion period as end of occlusion airway pressure Paw(tc)=Poccl; analyzing a time 5 dependence of the flow starting at the end of the occlusion period to determine a transition time td at which the slope of the flow changes from a first high value to a second lower value; determining the flow at the transition time as transition time flow V?(td)=V?peak and determining the airway pressure at the transition time as transition time pressure Paw(td); and calculating the resistance on the basis of the ratio of an estimated driving pressure at the transition time Pdrv(td) and the transition time flow V?peak.

Abstract: A method implemented, e.g., as software and a device operating according to the method for the automatic evaluation and analysis of a capnogram are provided. Measured values for an expired volume—volume measured values—and measured values for a carbon dioxide concentration—concentration measured values—are recorded for the breathing gas of a test subject. An automatic approximation of at least one part of the curve of the concentration measured values over the volume measured values is performed, by using three mutually adjacent straight lines for the approximation. The area is determined using the third straight line according to Fowler for the determination of the serial dead space Vds.

Abstract: A process and a device are provided for separating carbon dioxide from a breathing gas mixture by means of a “Fixed Site Carrier” membrane. The breathing gas mixture is guided in the device on a side of a selective, semipermeable membrane, which is provided with amine groups, which are bound covalently to a polymer. Through the membrane, the transport of the components of the gas mixture can take place. The membrane is selected to be such that the permeability for CO2 is substantially higher than the permeability for the other gas components of the breathing gas mixture. The membrane has or is associated with means for guiding the gas, which acts to guide the gas mixture on one side along the membrane. The membrane separates volume areas in which different CO2 partial pressures prevail from one another.

Abstract: A method of automatically controlling a respiration system for proportional assist ventilation with a control device and with a ventilator. An electrical signal is recorded by electromyography with electrodes on the chest in order to obtain a signal uemg(t) representing the breathing activity. The respiratory muscle pressure pmus(t) is determined by calculating it in the control unit from measured values for the airway pressure and the volume flow Flow(t) as well as the patient's lung mechanical parameters. The breathing activity signal uemg(t) is transformed by means of a preset transformation rule into a pressure signal pemg(uemg)(t)) such that the mean deviation of the resulting transformed pressure signal pemg(t) from the respiratory muscle pressure pmus(t) is minimized. The respiratory effort pressure ppat(t) is determined as a weighted mean according to ppat(t)=a·pmus(t)+(1?a)·pemg(t), where a is a parameter selected under the boundary condition 0?a?1.

Abstract: A device for detecting and transmitting electrical pulses from the body surface of a patient to device processing the electrical pulses. The device for detecting includes at least two electrical leads of different lengths, at least one electrical insulating material surrounding the at least two electrical leads, a connecting port for connection to the device for processing the electrical pulses at one end of the at least two electrical leads and a recess in the electrical insulating material of the at least two electrical leads, so that an electric contact can be established with the skin surface of the patient. The two leads of different lengths have a ratio of the electrical resistance to the length of the leads and/or the ratio of the impedance to the length of the leads that is/are greater in the shorter lead than in the longer lead.

Abstract: A device is provided for detecting a gas volume flow, especially for a respirator. The device includes a flow sensor, which surrounds a lumen for guiding the gas volume flow, and the flow sensor has an ultrasound transmitter with a sound generator (20) and an ultrasound receiver. The device has a connection sensor (17, 19), which is designed to detect a connection, especially an installation position or correctness of the connection or both, of the ultrasound transmitter to the transmitter mount and/or a connection of the ultrasound receiver to the receiver mount and to change at least one of its electrical properties as a function of the connection, or to generate a connection signal, which represents the connection, and to output this signal on the output side.