Patents by Inventor Andreas Hengstenberg
Andreas Hengstenberg has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240003285Abstract: A system and a method are provided for monitoring an exhaust gas purification system that is functionally connected to an emission source. An emission sensor acquires an emission signal that indicates emissions of the emission source on the exiting from the exhaust gas purification system. In addition, measurement signals that are each related to the exhaust gas purification system are acquired by a plurality of further sensors. A process state of the exhaust gas purification system is determined based on the measurement signals of the further sensors. Then, the emission signal and the process state are assessed with respect to an anomaly in each case.Type: ApplicationFiled: June 29, 2023Publication date: January 4, 2024Inventors: Jochen WÜST, Andreas HENGSTENBERG, Hinrich BRUMM, Paul SCHINDLER, Diana Lopez CARDENAS, Julian BLASCHTSCHAK
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Patent number: 11828720Abstract: A liquid electrolyte, for an electrochemical gas sensor for detecting NH3 or gas mixtures containing NH3, contains at least one solvent, one conductive salt and/or one organic mediator. The conductive salt is an ionic liquid, an inorganic salt, an organic salt or a mixture thereof. The electrolyte preferably is comprised of (I) water, propylene carbonate, ethylene carbonate or a mixture thereof as solvent; (ii) LiCl, KCl, tetrabutylammonium toluenesulphonate or 1-hexyl-3-methylimidazolium tris(pentafluoroethyl)trifluorophosphate as conductive salt; and (iii) tert-butylhydroquinone or anthraquinone-2-sulphonate as organic mediator.Type: GrantFiled: December 2, 2020Date of Patent: November 28, 2023Assignee: Dräger Safety AG & Co. KGaAInventors: Andreas Nauber, Michael Sick, Gregor Steiner, Marie-Isabell Mattern-Frühwald, Rigobert Chrzan, Sabrina Sommer, Frank Mett, Andreas Hengstenberg
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Publication number: 20210088470Abstract: A liquid electrolyte, for an electrochemical gas sensor for detecting NH3 or gas mixtures containing NH3, contains at least one solvent, one conductive salt and/or one organic mediator. The conductive salt is an ionic liquid, an inorganic salt, an organic salt or a mixture thereof. The electrolyte preferably is comprised of (I) water, propylene carbonate, ethylene carbonate or a mixture thereof as solvent; (ii) LiCl, KCl, tetrabutylammonium toluenesulphonate or 1-hexyl-3-methylimidazolium tris(pentafluoroethyl)trifluorophosphate as conductive salt; and (iii) tert-butylhydroquinone or anthraquinone-2-sulphonate as organic mediator.Type: ApplicationFiled: December 2, 2020Publication date: March 25, 2021Inventors: Andreas NAUBER, Michael SICK, Gregor STEINER, Marie-Isabell MATTERN-FRÜHWALD, Rigobert CHRZAN, Sabrina SOMMER, Frank METT, Andreas HENGSTENBERG
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Patent number: 10883958Abstract: A liquid electrolyte, for an electrochemical gas sensor for detecting NH3 or gas mixtures containing NH3, contains at least one solvent, one conductive salt and/or one organic mediator. The conductive salt is an ionic liquid, an inorganic salt, an organic salt or a mixture thereof. The electrolyte preferably is comprised of (I) water, propylene carbonate, ethylene carbonate or a mixture thereof as solvent; (ii) LiCl, KCl, tetrabutylammonium toluenesulphonate or 1-hexyl-3-methylimidazolium tris(pentafluoroethyl)trifluorophosphate as conductive salt; and (iii) tert-butylhydroquinone or anthraquinone-2-sulphonate as organic mediator.Type: GrantFiled: September 1, 2014Date of Patent: January 5, 2021Assignee: Dräger Safety AG & Co. KGaAInventors: Andreas Nauber, Michael Sick, Gregor Steiner, Marie-Isabell Mattern-Frühwald, Rigobert Chrzan, Sabrina Sommer, Frank Mett, Andreas Hengstenberg
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Patent number: 10709862Abstract: A device 10 withdraws a breathing gas stream (A) from a ventilation system (B) and transports the breathing gas stream (A) to a gas analysis system (G). The device 10 has a tubular configuration with an inner side (41) and with an outer side (42) and includes two tube sections (11, 11?) and a drying stage (12, 14, 22) with an inner side (43, 43?) and with an outer side (44, 44?), and at least one liquid storage device (13, 21). The drying stage (12, 14, 22) includes a gas-tight and moisture-permeable material that transports moisture from the inner side (43, 43?) of the drying stage (12, 14, 22) through the gas-tight and moisture-permeable material to the outer side (42) of the tubular device (10). The drying stage (12, 14, 22) and/or the liquid storage device (13, 21) is arranged at least partially between the two tube sections (11, 11?).Type: GrantFiled: October 5, 2015Date of Patent: July 14, 2020Assignee: Drägerwerk AG & Co. KGaAInventors: Hans-Ullrich Hansmann, Andreas Hengstenberg, Uwe Kühn, Gerd Peter, Michael Riecke
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Patent number: 10426907Abstract: A method and a system control a drug dosing device (1) for administering a drug to a patient (19). The quantity (c0) of the drug administered from the drug dosing device (1) is determined or calculated. The concentration of the drug in the gas exhaled by the patient (19) is measured as a first patient value (c1M). A simulation calculation is carried out, in which a second patient value (cp) is calculated from the administered quantity of the drug (I), taking into account a parameter (k10). A simulated first patient value (c1?) is calculated in the simulation calculation, taking into account the parameter (k10). A comparison of the simulated first patient value (c1?) to the measured first patient value (c1M) is carried out. The parameter (k10) is adapted on the basis of the comparison. The calculated second patient value (cp) is used to generate a control signal (S).Type: GrantFiled: October 27, 2015Date of Patent: October 1, 2019Assignee: Drägerwerk AG & Co. KGaAInventors: Andreas Hengstenberg, Stefan Zimmermann, Dammon Ziaian
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Publication number: 20170326326Abstract: A device 10 withdraws a breathing gas stream (A) from a ventilation system (B) and transports the breathing gas stream (A) to a gas analysis system (G). The device 10 has a tubular configuration with an inner side (41) and with an outer side (42) and includes two tube sections (11, 11?) and a drying stage (12, 14, 22) with an inner side (43, 43?) and with an outer side (44, 44?), and at least one liquid storage device (13, 21). The drying stage (12, 14, 22) includes a gas-tight and moisture-permeable material that transports moisture from the inner side (43, 43?) of the drying stage (12, 14, 22) through the gas-tight and moisture-permeable material to the outer side (42) of the tubular device (10). The drying stage (12, 14, 22) and/or the liquid storage device (13, 21) is arranged at least partially between the two tube sections (11, 11?).Type: ApplicationFiled: October 5, 2015Publication date: November 16, 2017Inventors: Hans-Ullrich HANSMANN, Andreas HENGSTENBERG, Uwe KÜHN, Gerd PETER, Michael RIECKE
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Publication number: 20160116430Abstract: A liquid electrolyte, for an electrochemical gas sensor for detecting NH3 or gas mixtures containing NH3, contains at least one solvent, one conductive salt and/or one organic mediator. The conductive salt is an ionic liquid, an inorganic salt, an organic salt or a mixture thereof. The electrolyte preferably is comprised of (I) water, propylene carbonate, ethylene carbonate or a mixture thereof as solvent; (ii) LiCl, KCl, tetrabutylammonium toluenesulphonate or 1-hexyl-3-methylimidazolium tris(pentafluoroethyl)trifluorophosphate as conductive salt; and (iii) tert-butylhydroquinone or anthraquinone-2-sulphonate as organic mediator.Type: ApplicationFiled: September 1, 2014Publication date: April 28, 2016Inventors: Andreas NAUBER, Michael SICK, Gregor STEINER, Marie-Isabell MATTERN-FRÜHWALD, Rigobert CHRZAN, Sabrina SOMMER, Frank METT, Andreas HENGSTENBERG
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Publication number: 20160114114Abstract: A method and a system control a drug dosing device (1) for administering a drug to a patient (19). The quantity (c0) of the drug administered from the drug dosing device (1) is determined or calculated. The concentration of the drug in the gas exhaled by the patient (19) is measured as a first patient value (c1M). A simulation calculation is carried out, in which a second patient value (cp) is calculated from the administered quantity of the drug (I), taking into account a parameter (k10). A simulated first patient value (c1?) is calculated in the simulation calculation, taking into account the parameter (k10). A comparison of the simulated first patient value (c1?) to the measured first patient value (c1M) is carried out. The parameter (k10) is adapted on the basis of the comparison. The calculated second patient value (cp) is used to generate a control signal (S).Type: ApplicationFiled: October 27, 2015Publication date: April 28, 2016Inventors: Andreas HENGSTENBERG, Stefan ZIMMERMANN, Dammon ZIAIAN
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Patent number: 8696588Abstract: A device (1) and a corresponding method are provided for determining and/or monitoring the respiration rate based on measurement with more than one sensor (5, 7, 9, 13, 15). The device may be part of a monitor for determining and/or monitoring the respiration rate. The second and/or additional sensors are different form the first sensor and have a different manor of operation from the first sensor.Type: GrantFiled: October 24, 2007Date of Patent: April 15, 2014Assignee: Dräger Medical GmbHInventors: Hans-Ullrich Hansmann, Tilman von Blumenthal, Peter Tschuncky, Andreas Hengstenberg, Frank Mett, Uwe Kühn, Frank Franz, Kai Kück, Steffen Schmitt
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Patent number: 8662104Abstract: A slot valve (20) for use in the pneumatic switching circuit of a respirator, wherein said slot valve is designed to act bidirectionally and to pass over into the opened state to make possible the flow of a fluid at different pressure threshold values depending on the direction of flow of a fluid.Type: GrantFiled: March 5, 2010Date of Patent: March 4, 2014Assignee: Dräger Medical GmbHInventors: Hans-Ulrich Hansmann, Kirll Koulechov, Tilman von Blumenthal, Andreas Hengstenberg, Andreas Neumann, Torge Wall, Andreas Otto, Markus Kaemer
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Patent number: 8342178Abstract: A device provided for taking and continuously analyzing and monitoring breathing gas samples from defined, current phases of breathing of a patient is equipped with a breathing gas line (1) and with a sensor (2) for recognizing the current phases of breathing. A sampling line (3) is provided from the breathing gas line (1). The sampling line (3) is connected to a first gas delivery device (44) via a sample gas loop (4); with a measuring line (8) from the sampling line (3) to a sensor system (6) with a second gas delivery device (66) for the analysis of breathing gas samples; with a valve (5) in the sampling line (3) for controlling the breathing gas sample flow from defined, current phases of breathing into the sensor system (6) and into the sample gas loop (4), and with a control unit (7), which is connected at least to the gas delivery device (44) and to the valve (5), so that a continuous volume flow of breathing gas samples can be fed to the sensor system (6) from the defined, current phases of breathing.Type: GrantFiled: March 2, 2009Date of Patent: January 1, 2013Assignee: Dräger Medical GmbHInventors: Andreas Hengstenberg, Stefan Zimmermann
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Publication number: 20100269829Abstract: A slot valve (20) for use in the pneumatic switching circuit of a respirator, wherein said slot valve is designed to act bidirectionally and to pass over into the opened state to make possible the flow of a fluid at different pressure threshold values depending on the direction of flow of a fluid.Type: ApplicationFiled: March 5, 2010Publication date: October 28, 2010Applicant: Drager Medical AG & CO. KGInventors: Hans-Ulrich HANSMANN, Kirll KOULECHOV, Tilman von BLUMENTHAL, Andreas HENGSTENBERG, Andreas NEUMANN, Torge WALL, Andreas OTTO, Markus KAEMER
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Patent number: 7811247Abstract: An arrangement is provided for monitoring a metering of at least one medication administered to a patient. The concentration of the active ingredient of the medication, which is measured in the breathing gas of a patient, is balanced with a computed concentration in the breathing gas. When a change of the administered quantity of the medication takes place, the concentration range (13) is adapted. The concentration, which is measured in the breathing gas, must lie by computation within this range. An arrangement for administering at least one medication and a method for monitoring a metering or dosing of the medication as well as a method for treating a patient are provided.Type: GrantFiled: September 24, 2007Date of Patent: October 12, 2010Assignee: Draeger Medical AG & Co. KGInventors: Andreas Hengstenberg, Götz Kullik
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Patent number: 7758735Abstract: An electrochemical sensor with at least one ionic liquid (4) as the electrolyte, contains at least one electrode (1), whose active surface is substantially larger than the geometric area covered by said electrode (1). The electrolyte and at least one of the electrodes (1, 2, 3) are in direct contact with the ambient atmosphere.Type: GrantFiled: April 11, 2006Date of Patent: July 20, 2010Assignee: Drägerwerk AktiengesellschaftInventors: Andreas Hengstenberg, Peter Tschuncky
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Patent number: 7645367Abstract: A gas-measuring system contains at least one gas sensor (1) and at least one gas generator (4). The gas sensor (1) has at least one measuring surface (3), at which a target gas concentration can be measured. The gas generator (4) has at least one discharge surface (5), from which a current-proportional quantity of test gas can be discharged. The measuring surface (3) and the discharge surface (5) are designed and the gas sensor (1) and the gas generator (4) can be arranged such that the measuring surface (3) and the discharge surface (5) are in direct contact with the ambient atmosphere and the distance between the two surfaces is shorter than the extension of the smaller of the two surfaces.Type: GrantFiled: February 7, 2006Date of Patent: January 12, 2010Assignee: Dräger Safety AG & Co. KGaAInventors: Peter Tschuncky, Herbert Kiesele, Uwe Kühn, Frank Mett, Andreas Hengstenberg, Kerstin Caro
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Publication number: 20090281443Abstract: A device provided for taking and continuously analyzing and monitoring breathing gas samples from defined, current phases of breathing of a patient is equipped with a breathing gas line (1) and with a sensor (2) for recognizing the current phases of breathing. A sampling line (3) is provided from the breathing gas line (1). The sampling line (3) is connected to a first gas delivery device (44) via a sample gas loop (4); with a measuring line (8) from the sampling line (3) to a sensor system (6) with a second gas delivery device (66) for the analysis of breathing gas samples; with a valve (5) in the sampling line (3) for controlling the breathing gas sample flow from defined, current phases of breathing into the sensor system (6) and into the sample gas loop (4), and with a control unit (7), which is connected at least to the gas delivery device (44) and to the valve (5), so that a continuous volume flow of breathing gas samples can be fed to the sensor system (6) from the defined, current phases of breathing.Type: ApplicationFiled: March 2, 2009Publication date: November 12, 2009Applicant: Drager Medical AG & Co. KGInventors: Andreas Hengstenberg, Stefan Zimmermann
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Publication number: 20080139955Abstract: A device (1) and a corresponding method are provided for determining and/or monitoring the respiration rate based on measurement with more than one sensor (5, 7, 9, 13, 15). The device may be part of a monitor for determining and/or monitoring the respiration rate. The second and/or additional sensors are different form the first sensor and have a different manor of operation from the first sensor.Type: ApplicationFiled: October 24, 2007Publication date: June 12, 2008Applicant: Drager Medical AG & Co. KGInventors: Hans-Ullrich HANSMANN, Tilman von BLUMENTHAL, Peter TSCHUNCKY, Andreas HENGSTENBERG, Frank METT, Uwe KUHN, Frank FRANZ, Kai KUCK, Steffen SCHMITT
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Patent number: 7364552Abstract: A rapid measuring system for the determination of the concentration of propofol in the respiratory flow, which can be designed in a compact form, has the features of a breathing gas line (1) including a breathing gas sensor (2) detecting the respiration, wherein the breathing gas sensor (2) is connected to an evaluating unit (3), a propofol sensor (5) with a downstream pump (6) is in gas flow connection with the breathing gas line (1), wherein the evaluating unit (3) is connected with the propofol sensor (5) and the pump (6), so that the evaluating unit (3) actuates the pump (6) for breathing gas sampling depending on the signal of the breathing gas sensor (2), and the propofol sensor (5) sends a measured signal for the concentration of propofol in the breathing gas to the evaluating unit (3).Type: GrantFiled: June 17, 2004Date of Patent: April 29, 2008Assignee: Drägerwerk AktiengesellschaftInventors: Herbert Kiesele, Andreas Hengstenberg, Alex Martin Zbinden, Rolf Lauber
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Publication number: 20080077080Abstract: An arrangement is provided for monitoring a metering of at least one medication administered to a patient. The concentration of the active ingredient of the medication, which is measured in the breathing gas of a patient, is balanced with a computed concentration in the breathing gas. When a change of the administered quantity of the medication takes place, the concentration range (13) is adapted. The concentration, which is measured in the breathing gas, must lie by computation within this range. An arrangement for administering at least one medication and a method for monitoring a metering or dosing of the medication as well as a method for treating a patient are provided.Type: ApplicationFiled: September 24, 2007Publication date: March 27, 2008Inventors: Andreas Hengstenberg, Gotz Kullik