Patents by Inventor Karl-Ludwig Gippert
Karl-Ludwig Gippert 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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Patent number: 8496003Abstract: A wick for an anesthetic evaporator is provided as a dimensionally stable wick body (14) transporting anesthetic by means of capillary force is provided. The wick body comprises a hollow cylinder as well as webs by which a gas-carrying cavity is formed.Type: GrantFiled: July 15, 2009Date of Patent: July 30, 2013Assignee: Dräger Medical GmbHInventors: Lothar Kleinschmidt, Karl-Ludwig Gippert, Thorsten Bruhn, Dirk-Stefan Reichert, Michael Riecke
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Patent number: 7992843Abstract: A dispensing element of an anesthetic vaporizer is provided that can be manufactured in a simple manner and makes it possible to dispense anesthetic over a broad setting range. The dispensing element (11) includes two, longitudinally extending dispensing channels (14, 15), which are connected to one another in terms of flow by means of a connection channel (16). The gas flows from one of the dispensing channels (14) into the other dispensing channel (15) via the connection channel (16).Type: GrantFiled: July 16, 2007Date of Patent: August 9, 2011Assignee: Dräger Medical GmbHInventors: Dirk-Stefan Reichert, Karl-Ludwig Gippert, Thomas Lutter
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Patent number: 7730885Abstract: A device for mixing anesthetic vapor with anesthetic gas has a pressure limitation feature achieved in a simple manner. The device has a valve device (11), with which the evaporator is switched on and off. The valve device (11) is equipped with an overpressure release device (22).Type: GrantFiled: August 23, 2005Date of Patent: June 8, 2010Assignee: Dräger Medical AG & Co. KGInventors: Karl-Ludwig Gippert, Claus Bunke, Matthias Witt, Rainer Kunz, Jürgen Müller, Sven Heyer, Michael Heidschmidt, Dirk-Stefan Reichert
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Publication number: 20100051028Abstract: A wick for an anesthetic evaporator is provided as a dimensionally stable wick body (14) transporting anesthetic by means of capillary force is provided. The wick body comprises a hollow cylinder as well as webs by which a gas-carrying cavity is formed.Type: ApplicationFiled: July 15, 2009Publication date: March 4, 2010Applicant: Drãger Medical AG & Co. KGInventors: Lothar KLEINSCHMIDT, Karl-Ludwig GIPPERT, Thorsten BRUHN, Dirk-Stefan REICHERT, Michael RIECKE
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Patent number: 7481215Abstract: An anesthetic evaporator with a pressure control circuit has a differential pressure pick-up (18) can be calibrated in a simple manner. A switchover device (20) is provided according to the present invention at a bypass gap (3), which is designed to connect the gas inlet (4) directly with the gas outlet (5) via a first bypass line (23) and to bridge over the bypass gap (3) via a second bypass line (26) connected to a ventilation duct (27) in a first switching position. The gas flow from the gas inlet (4) to the gas outlet (5) is established via the bypass line (2) in a second switching position. The calibration of the differential pressure pick-up (18) with the pneumatic connections (16, 17) is performed in the first switching position of the switchover means (20) via the ventilation duct (27), which is open toward the ambient atmosphere.Type: GrantFiled: July 27, 2005Date of Patent: January 27, 2009Assignee: Dräger Medical AG & Co. KGaAInventors: Thomas Rossen, Karl-Ludwig Gippert, Michael Heidschmidt, Jürgen Müller, Rainer Kunz
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Publication number: 20080066749Abstract: A dispensing element of an anesthetic vaporizer is provided that can be manufactured in a simple manner and makes it possible to dispense anesthetic over a broad setting range. The dispensing element (11) includes two, longitudinally extending dispensing channels (14, 15), which are connected to one another in terms of flow by means of a connection channel (16). The gas flows from one of the dispensing channels (14) into the other dispensing channel (15) via the connection channel (16).Type: ApplicationFiled: July 16, 2007Publication date: March 20, 2008Applicant: Drager Medical AG & Co. KGInventors: Dirk-Stefan REICHERT, Karl-Ludwig GIPPERT, Thomas LUTTER
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Patent number: 7275539Abstract: A wick arrangement for an anesthetic evaporator includes a wick with a carrier material (2) that is essentially impermeable to gas provided with wick material (3, 4) on both sides. A great path length is provided for saturating the gas with anesthetic vapor in the smallest possible installation volume by providing flow channels such as helical flow channels (10, 11) extending helically on both sides of the wick. The gas flow is led in counterflow in the flow channels (10, 11) by a housing (9).Type: GrantFiled: April 24, 2002Date of Patent: October 2, 2007Assignee: Dräger Medical AG & Co. KGaAInventor: Karl-Ludwig Gippert
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Publication number: 20060090750Abstract: An anesthetic evaporator with a pressure control circuit has a differential pressure pick-up (18) can be calibrated in a simple manner. A switchover device (20) is provided according to the present invention at a bypass gap (3), which is designed to connect the gas inlet (4) directly with the gas outlet (5) via a first bypass line (23) and to bridge over the bypass gap (3) via a second bypass line (26) connected to a ventilation duct (27) in a first switching position. The gas flow from the gas inlet (4) to the gas outlet (5) is established via the bypass line (2) in a second switching position. The calibration of the differential pressure pick-up (18) with the pneumatic connections (16, 17) is performed in the first switching position of the switchover means (20) via the ventilation duct (27), which is open toward the ambient atmosphere.Type: ApplicationFiled: July 27, 2005Publication date: May 4, 2006Applicant: Drager Medical AG & Co. KGaAInventors: Thomas Rossen, Karl-Ludwig Gippert, Michael Heidschmidt, Jurgen Muller, Rainer Kunz
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Publication number: 20060065269Abstract: A device for mixing anesthetic vapor with anesthetic gas has a pressure limitation feature achieved in a simple manner. The device has a valve device (11), with which the evaporator is switched on and off. The valve device (11) is equipped with an overpressure release device (22).Type: ApplicationFiled: August 23, 2005Publication date: March 30, 2006Applicant: Drager Medical AG & Co. KGaAInventors: Karl-Ludwig Gippert, Claus Bunke, Matthias Witt, Rainer Kunz, Jurgen Muller, Sven Heyer, Michael Heidschmidt, Dirk-Stefan Reichert
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Publication number: 20030010476Abstract: A wick arrangement for an anesthetic evaporator includes a wick with a carrier material (2) that is essentially impermeable to gas provided with wick material (3, 4) on both sides. A great path length is provided for saturating the gas with anesthetic vapor in the smallest possible installation volume by providing flow channels such as helical flow channels (10, 11) extending helically on both sides of the wick. The gas flow is led in counterflow in the flow channels (10, 11) by a housing (9).Type: ApplicationFiled: April 24, 2002Publication date: January 16, 2003Inventor: Karl-Ludwig Gippert
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Patent number: 5928411Abstract: 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 a gas outlet and comprises a first molecular sieve area with a first pore size between about 0.3 nm and 0.5 nm and a second molecular sieve area with a second pore size between about 0.8 nm and 1 nm.Type: GrantFiled: July 21, 1997Date of Patent: July 27, 1999Assignee: Dragerwerk AGInventors: Wolfgang Falb, Karl-Ludwig Gippert, Uwe Bausch, Dirk Stefan Reichert, Stefan Linke, Udo Feldhoff
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Patent number: 5839487Abstract: A safety filling device for filling a liquid anesthetic into a reservoir of an anesthetic-metering device with a receiving device, which has an inlet opening for a coupling piece or a closing piece. An essentially rigid guide lever is provided in the connection area between the receiving device and the closing piece. A hinge connection is provided which makes possible an axial displaceability of the guide lever within the inlet opening and a rotary movement of the guide lever outside the inlet opening.Type: GrantFiled: October 22, 1996Date of Patent: November 24, 1998Assignee: Dragerwerk AktiengesellschaftInventors: Stefan Moll, Uwe Bausch, Stefan Linke, Dirk-Stefan Reichert, Karl-Ludwig Gippert, Wolfgang Falb
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Patent number: 5671729Abstract: A device for mixing anesthetic vapor with a gas according to the bypass principle such that anesthetic gas or liquid anesthetic is prevented from escaping from the evaporator chamber during transportation. The switching on of the anesthetic evaporator takes place under defined pressure conditions in the evaporator chamber. A transport position, which precedes the switch-off position, and in which a ventilating valve of a ventilating line arriving from the evaporator chamber is switched into the switch-off position by the setting member, is provided on the setting member.Type: GrantFiled: October 16, 1996Date of Patent: September 30, 1997Assignee: Dragerwerk AktiengesellschaftInventors: Stefan Moll, Uwe Bausch, Stefan Linke, Dirk-Stefan Reichert, Karl-Ludwig Gippert, Wolfgang Falb
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Patent number: 5335652Abstract: A gas ratio control device for anesthetic apparatus with an anesthetic gas feed line 1, which has a control valve 12 and a first measuring resistance 6, and an oxygen feed line 2 with a second measuring resistance 10, wherein the differential pressure determined from the measuring resistances is sent to a proportional member 13 for regulating oxygen feed to anesthetic gas feed. So oxygen concentration will not drop below a minimum oxygen concentration value in the case of anesthetics to be metered at both low and high doses, one of the measuring resistances 6, 10 can be replaced or bridged over with a bypass line 14, which contains a throttle point 15 (FIG. 1).Type: GrantFiled: February 10, 1992Date of Patent: August 9, 1994Assignee: Dragerwerk AktiengesellschaftInventors: Wolfgang Falb, Karl-Ludwig Gippert, Ulrich Heim, Uvo Holscher, Siegfried Kiske, Gotz Kullik, Ralf-Ernst Loser, Christoph Maurer
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Patent number: 5287898Abstract: A filling device for anesthetic vaporizers, with a connection piece which can be connected to a connection opening of an anesthetic reservoir in a gas-tight and liquid-tight manner. Leakage of anesthetic gas or liquid anesthetic can be avoided during the filling especially of low-boiling anesthetics by providing the reservoir 10 with a seal 17, which closes the connection opening 9 at least in a liquid-tight manner and can be opened by a projection 5 which is arranged on the connection piece 2 and extends into the interior space of the connection opening 9, as soon as the connection piece 2 is sealed off from the surroundings against the connection opening 9 by a sealing element 15 in a gas-tight and liquid-tight manner.Type: GrantFiled: February 10, 1992Date of Patent: February 22, 1994Assignee: Dragerwerk AktiengesellschaftInventors: Wolfgang Falb, Karl-Ludwig Gippert, Ulrich Heim, Uvo Holscher, Siegfried Kiske, Gotz Kullik, Ralf-Ernst Loser, Christoph Maurer
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Patent number: 5253640Abstract: A process for calibrating a flow sensor in a respiratory system, with final control elements arranged in the respiratory system for influencing the respiration gas stream, is to be improved in terms of the influence of the qualitative gas composition of the respiration gas. To accomplish the task, the final control elements 4, 11 are switched, for calibration, over to a closed respiratory system with directed respiration gas stream. The drive unit 13 feeds the respiration gas present in the respiratory system through the flow sensor 9 according to a predetermined time-volume relationship. A calibration value for the flow sensor 9 is formed by comparison of the time-volume relationship with the measured signal of the flow sensor 9.Type: GrantFiled: February 10, 1992Date of Patent: October 19, 1993Assignee: Dragerwerk AktiengesellschaftInventors: Wolfgang Falb, Karl-Ludwig Gippert, Ulrich Heim, Uvo Holscher, Siegfried Kiske, Gotz Kullik, Ralf-Ernst Loser, Christoph Mauer
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Patent number: 5243973Abstract: A metering device for a liquid anesthetic that is fed from a reservoir via a supply line into a heatable intermediate container maintained under pressure, from which gaseous anesthetic is fed via a metering valve into a fresh gas line. Accurate metering, which can be better monitored, is provided for low-boiling anesthetics. A supply unit 7 is mounted in the supply line 5, and liquid anesthetic is transported by the supply unit 7 into the intermediate container 6 until it is filled up to a predetermined filling level. A heating device 12 stabilizes the temperature of the liquid bath and ensures a sufficiently high vapor pressure of the gaseous anesthetic above the liquid phase. The anesthetic vapor is sent via the metering valve into the fresh gas line.Type: GrantFiled: February 10, 1992Date of Patent: September 14, 1993Assignee: Dragerwerk AktiengesellschaftInventors: Wolfgang Falb, Karl-Ludwig Gippert, Ulrich Heim, Uvo Holscher, Siegfried Kiske, Gotz Kullik, Ralf-Ernst Loser, Christoph Maurer
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Patent number: 5242403Abstract: A metering pump for metering low-boiling liquids, especially liquid anesthetics provides continuous metering of liquid. To achieve this, the pump chamber 7 is maintained at a temperature below the boiling point of the liquid by means of a cooling device 14, preferably a Peltier cell.Type: GrantFiled: February 10, 1992Date of Patent: September 7, 1993Assignee: Dragerwerk AktiengesellschaftInventors: Wolfgang Falb, Karl-Ludwig Gippert, Ulrich Heim, Uvo Holscher, Siegfried Kiske, Gotz Kullik, Ralf-Ernst Loser, Christoph Maurer
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Patent number: 5235971Abstract: An anesthetic metering device is provided with a temperature-stabilized anesthetic vapor source, from which anesthetic vapor 14 is metered into a carrier gas stream via a delivery line 8 with a metering valve 11 that can be controlled by a control unit 6. The arrangement is provided so that uncontrolled evaporation of anesthetic is prevented. To accomplish this task, the anesthetic vapor source is designed as a vaporizer chamber 2 filled with liquid anesthetic 3, and a gas delivery element 9 generating the metering pressure P.sub.I is present in front of the metering valve 11.Type: GrantFiled: February 10, 1992Date of Patent: August 17, 1993Assignee: Dragerwerk AktiengesellschaftInventors: Wolfgang Falb, Karl-Ludwig Gippert, Ulrich Heim, Uvo Holscher, Siegfried Kiske, Gotz Kullik, Ralf-Ernst Loser, Christoph Maurer
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Patent number: 5197462Abstract: An anesthetic metering device with a bypass stream 5 passed from a gas inlet opening 2 via a bypass valve 3 to a gas discharge opening 4 and with a vaporizer chamber stream 7 flowing from a vaporizer chamber 6 via an adjusting device. Accurate metering is possible even in the case of anesthetics with low boiling points by manufacturing the vaporizer chamber 6 at least at the saturation vapor pressure of the anesthetic 22. The adjusting device includes a differential pressure transducer 9 connected on both sides of the bypass valve 3 and a metering valve 10, wherein the metering valve 10 is actuated by the output quantity 11 of the differential pressure transducer 9 via a proportional member 12 so that the concentration is adjusted via the variable transmission ratio of the proportional member 12.Type: GrantFiled: February 10, 1992Date of Patent: March 30, 1993Assignee: Dragerwerk AktiengesellschaftInventors: Wolfgang Falb, Karl-Ludwig Gippert, Ulrich Heim, Uvo Holscher, Siegfried Kiske, Gotz Kullik, Ralf-Ernst Loser, Christoph Maurer