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Dragerwerk AG Patents
Assignee:
Dragerwerk AG
Address:
Lubeck, DE
No. of patents:
92
Patents:


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Patent Number Title Of Patent Date Issued
6652811 Device for measuring the concentration of gaseous and vaporous components of a gas mixture November 25, 2003
A device for detecting gaseous and vaporous components of a gas mixture by means of channels 2, which are located next to each other on a support 201, are connected in parallel in terms of flow, and are exposed to the component to be detected along a flow axis 3. A scanning section 6 of
6031968 Humidifying system with a filling level control for the liquid to be evaporated February 29, 2000
A humidifying system particularly for incubators and a process for humidifying incubators is disclosed. The system includes a float valve with a sleeve-shaped float housing with a float body axially displaceable therein as well as a throttle valve influencing the flow of liquid. The
6024853 Electrochemical oxygen sensor February 15, 2000
An electrochemical oxygen sensor with a measuring electrode, an atmospheric oxygen electrode as a reference electrode, and an auxiliary electrode in an electrolyte is improved such that a stable measured signal is obtained even during changes in the position of the measuring cell. To acc
6024782 Layered gas filter media February 15, 2000
A gas filter media with a parallel layer structure, which comprise individual layers of adhesive and adsorbent particles, wherein the thermoplastic adhesive is solvent-free and is preferably based on polypropylene or polyethylene. Using the manufacturing process according to the pres
6002702 Radiation source for laser spectroscopy December 14, 1999
A laser array for determining the concentrations of gases. A simply acting device and a corresponding process are provided, which make possible a high signal resolution by reducing the interferences without prolonging the measurement time. The interferences occurring in the laser array a
5984175 Device and process for detecting and identifying wearable user identification units November 16, 1999
A device for detecting and identifying wearable identification units (20) for users at a predetermined distance around a central station (2). The central station (2) has a transmitter (4) and a receiver (6) for electromagnetic signals and a control unit (8), which initiates the sendi
5958200 Electrochemical gas sensor September 28, 1999
The present invention pertains to an electrochemical gas sensor, which has an electrode system for the measurement and is directly coupled with the environment via a gas inlet. To avoid fault liability and incorrect measurements in the case of rapid changes in atmospheric humidity, a
5948962 Gas detection system with interchangeable gas sensors September 7, 1999
A codable gas detection system with at least one interchangeable gas sensor (2), which has standardized plug-type connections (5,6) between the gas sensor (2) and the measuring device (1), but is also able to prevent measured values of an unauthorized gas sensor (2) from being processed.
5942755 Infrared optical gas-measuring system August 24, 1999
An infrared optical gas-measuring system with two infrared radiation sources (1, 2) and with at least one multispectral sensor (5). The system is suitable for determining the concentrations of different components of a gas flow. The two infrared radiation sources (1, 2) radiate in differ
5935055 Incubator with improved air guidance August 10, 1999
An incubator for infants with air feed arranged between the lying surface and the housing and with an air return, as well as with a fan and an air heater associated with it. To ensure a uniform temperature in the area of the lying surface and a stable warm air curtain in the area of the
5932079 Electrochemical multigas sensor August 3, 1999
An electrochemical measuring cell for the simultaneous detection of different gas components in a gas sample, with a plurality of measuring electrodes (4, 5, 6) behind a diffusion barrier (7), with a common reference electrode (8) and counterelectrode (9) in an acid electrolyte, and
5931163 Valve for setting the flow of a flow medium August 3, 1999
A device with a valve for setting the flow of a flow medium, which has a passage channel with an inlet opening and with an outlet opening for the flow medium, and with a tongue-like valve element, which is arranged in the passage channel. The valve element is adjustable in a rotatably
5928411 Device for absorbing a gas mixture consisting of laughing gas and anesthetic vapor July 27, 1999
A device for removing at least laughing gas and anesthetic vapor from a gas sample based on a molecular sieve shall be improved such that it possesses good adsorption properties for both gas components. A molecular sieve arrangement is provided, which is flown through from a gas inlet to
5927275 Valve for a respirator July 27, 1999
A valve for a respirator with a closing member, which is located at a valve seat 6 and is actuated by an electric drive 12, is improved in terms of its dynamic properties. A detector for detecting a first electric signal present at the moving drive a simulator for simulating a second ele
5925881 Infrared absorption measuring cell July 20, 1999
A measuring cell (1) for the analysis of a gas sample by infrared absorption, with a measuring path (2) accommodating the gas sample, which has opposite limiting surfaces (7, 9) enclosing the gas sample, wherein a focusing optical component (8) is present at the first limiting surface
5923035 Infrared absorption measuring device July 13, 1999
A measuring device for determining the concentration of gases with two identical radiation sources and two radiation detectors, which delivers stable measured values despite the contamination that occurs or the shielding from radiation of the outer optical surfaces exposed to the gas
5918593 Ultrasonic atomizer for respiration systems July 6, 1999
An ultrasonic atomizer for respiration systems, which is integrated in the breathing gas line from and to the patient via two connections. The ultrasonic atomizer is in a gas flow connection with the atomizer chamber to which an aerosol is admitted by a piezo vibrating element for the
5916535 Device for generating oxygen June 29, 1999
A device for generating oxygen by the thermal decomposition of a chemical located in a cartridge housing is improved such that a profile of the oxygen release can be set in a simple manner. To accomplish this a delivery line drawing off the oxygen generated is connected to a longitud
5897485 Incubator for infants April 27, 1999
An incubator with a first air heater and a first fan is improved in terms of constant air temperature and air humidity in the interior space even after a brief opening of a flap. A second air heater and an associated second fan are additionally provided, whose operation is controlled via
5889195 Measuring arrangement for determining the concentration of gases from liquid media March 30, 1999
A measuring arrangement for determining the concentration of gases dissolved in a liquid is proposed, which has a simple design and makes possible the use of known gas-measuring apparatus based on color reaction tubes or color reaction capillaries. A preferably flexible tube-like body
5881767 Modular piezo valve arrangement March 16, 1999
A piezo valve arrangement for gas mixers or respirators, which is built up modularly from individual valve elements. At least one individual valve element, which is provided in its housing with a pressurized gas channel and a gas discharge channel, is arranged between a connection plate
5876352 Process for determining the mechanical properties of the respiratory system of a respirated pati March 2, 1999
A process and device for determining mechanical properties of a respiratory system of a patient connected to a respirator, wherein a short-term occlusion of the patient's airways is performed during an inspiration phase and/or an expiration phase. Initiating of the occlusion is at di
5875783 Gas delivery means for respirators and anesthesia apparatus March 2, 1999
A gas delivery arrangement for respirators and anesthesia apparatus includes a radial flow compressor (10) with bent-backwards blades. The compressor impeller (11) is arranged in a stationary housing (14). The gas inlet (12) is located in the area of the axis of rotation of the compr
5874897 Emergency-reporting system for rescue operations February 23, 1999
A personal emergency-reporting system for recognizing the site of an emergency with simultaneous warning of the nearest emergency physician/medical personnel. A portable patient data unit is provided which contains a satellite-supported global positioning system, which communicates w
5855750 Electrochemical measuring cell for detecting oxidizing gases January 5, 1999
An electrochemical measuring cell for detecting oxidizing gases, containing an electrode with a redox mediator, which is oxidized by the gas to be detected. A measuring electrode is employed made of an inert material, and a counterelectrode is provided. The dynamics and reproducibility o
5848591 Respirator with oxygen enrichment December 15, 1998
A respirator with a delivery device, which draws in ambient air via an inlet line and pumps it into an outlet line, with a discharge opening, which branches off from the outlet line and via which a partial flow of the gas being delivered, which can be set with a discharge valve, escapes.
5837112 Electrochemical measuring cell for detecting phosgene November 17, 1998
An electrochemical measuring cell for detecting phosgene, with at least one measuring electrode made of silver and with a counterelectrode in an electrolyte, which contains an organic solvent and to which a conductive salt is added, is improved in terms of the detection of low concentrat
5830123 Pivotable irradiating device November 3, 1998
A pivotable irradiating device for a person on a lying surface provides extensively uniform continued irradiation of the lying surface without any interruption in time when the irradiating device is pivoted out of the starting position. The irradiating device has at least one radiator in
5826573 Gas flow control element October 27, 1998
A gas flow control element with a gas-permeable section, through which excess gas flows to the outside from an interior space (10), is to be improved such that it can be cleaned with ease and that a defined, reproducible discharge is present. To accomplish this task, the gas-permeabl
5823186 Respirator October 20, 1998
A compact respirator, which is independent from a central air supply includes at least two gas supply lines, which lead to a gas mixer in the inspiration line. The gas lines are part of a mixing and metering unit, wherein one gas supply line has a compressor for ambient air and the at
5817004 Thermotherapy device for infants October 6, 1998
A thermotherapy device with a hood (4), two flaps (6, 7) pivotable around hinges (5) for closing longitudinally extending, essentially triangular access opening portions in the hood. The opening has an essentially horizontally extending base edge (15). First access areas (12, 13) with
5810002 Respirator September 22, 1998
A respirator with a breathing gas delivery unit having a variable delivery volume, with a breathing circuit having an inspiration branch and an expiration branch, and with a feed line for breathing gas. The feed line opens into the breathing circuit and is connected to a metering unit.
5804146 Chemical oxygen generator September 8, 1998
A chemical oxygen generator with a chemical mass, which is accommodated inside a container, generates oxygen by a chemical reaction, and is held in the container by a gas-permeable fibrous material. The fibrous material is arranged around the chemical mass. The fibrous material is design
5782235 Valved filter connection piece for a gas mask July 21, 1998
A combination of a first breathing connection of a gas mask with an insert which can be inserted into the breathing connection for connecting filters to the gas mask is to be improved in terms of the simple manufacture of country-specific variants of gas masks. The insert has a first mar
5767976 Laser diode gas sensor June 16, 1998
A laser diode gas sensor for the spectroscopic measurement of a gas sample, with a retroreflector and a concave mirror, which define between them an open measuring path with the gas to be analyzed. Laser light passes through the measuring path, is reflected at the retroreflector, and is
5765549 Respirator June 16, 1998
A respirator to be worn in front of the chest with regeneration of the breathing air, containing a regenerating cartridge with a plurality of chemical layers, a breathing bag, a connection piece on the side of the breathing bag located opposite the regenerating cartridge, a breathing
5763792 Respiratory flow sensor June 9, 1998
A respiratory flow sensor to be connected between a breathing tube and an endotracheal catheter, which has a flow channel, an orifice, which is formed by a foil recessed in the flow tube, in which an orifice flap is formed by an incision, and has connections to the flow channel on both
5755223 Delivery device for a respirator May 26, 1998
A delivery device for supplying a respirator with breathing gas includes a cylinder housing with a piston, and a drive unit for generating delivery strokes, which is connected to the piston via a piston rod. A compact design is achieved by providing the drive unit with a motor-driven hol
5696379 Measuring apparatus for measuring the concentration of gases utilizing infrared absorption December 9, 1997
A measuring apparatus for measuring the concentration of a gas by infrared absorption includes a first radiation source 11 having a first modulation frequency, an arcuate waveguide 13 for receiving the gas to be measured therein, and two radiation detectors (15, 16). The measuring appara
5670119 Holder for a test tube September 23, 1997
A holder for a test tube with a test robe tip that can be opened, with a tube, which accommodates the test tube at least partially, and whose tube end has a projection pointing toward the test tube tip in the area of the test tube tip. The handling steps needed to open the test tube are
5653226 Device for generating oxygen August 5, 1997
A device for generating oxygen by the thermal decomposition of a chemical contained in a cartridge housing, whose reaction takes place, beginning from an activation point, along a reaction front propagating in the interior of the cartridge housing in the direction of an unspent chemical,
5647351 Ventilating system for supplying a patient with respiratory gas and method for triggering the re July 15, 1997
A ventilating system for supplying a patient with respiratory gas has an apparatus for measuring a respiratory gas flow curve 27 and a respiratory gas pressure curve 28 and has an evaluation circuit 8 for processing at least the respiratory gas flow curve and switching over the respirato
5647346 Medical apparatus having a metering device July 15, 1997
A medical apparatus 1 is equipped with: a metering device (2, 3) for a fluid medium (4, 5); a computer unit 19 controlling the metering device (2, 3) according to individual input quantities; a display screen 12 for displaying possible input quantities inside menu structures; a rotatable
5625902 Protective hood made of an elastic material May 6, 1997
A protective hood (1) made of an elastic, elastomeric, gas-impermeable material, with a head area (2) and a neck area (4) joining the head area (2) with its top end (3), is to be improved such that good seating of the protective hood is achieved at different head sizes. This object is
5619989 Respirator filter April 15, 1997
A respirator filter with a pot-shaped filter housing, with a flange at the edge of the filter housing, with a flow channel passing through the filter housing with a sealing surface, with a housing cover and with a filter element located in the filter housing is to be optimized in terms o
5601078 Breathing apparatus with a display unit February 11, 1997
A breathing apparatus with a display unit for the transmission of measured data via a display field of the display unit into the field of vision of a person wearing the unit. The readability of the measured data displayed is improved in daylight with simultaneously reduced energy demand.
5598997 Rail section for a container of an oxygen supply unit February 4, 1997
A rail section on a container of an oxygen supply unit for hanging the container into a mount in an aircraft. Hook parts on the end tips of the rail section are provided, which end tips project from the container and engage the mount on a first contact zone (10). A subsequent alignment o
5560584 Safety filling device with a closing element October 1, 1996
A safety filling device for filling a liquid anesthetic into a filling space of an anesthetic evaporator from a storage container by means of a filling adapter, which can be pushed into an insertion opening, with a closing element, which interrupts the flow of liquid anesthetic in a
5551310 Detection device with a gas detector element September 3, 1996
A detection device with a gas detector element for analyzing pressurized gases contained in a reservoir by sampling while the pressure is reduced. A coupling means is provided for connecting the detector to a reservoir. Ease of handling is facilitated in the routine operation by providin
5537993 Gas ratio control device for anestesia apparatus July 23, 1996
A gas ratio control device for anesthesia apparatus, includes an anesthetic gas feed line, which has, in a series-connected arrangement, a control valve with an inlet chamber, an anesthetic gas-adjusting valve and a first measuring resistance, and an oxygen feed line, which has a second
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