Patents by Inventor Matthias Witt
Matthias Witt 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: 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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Patent number: 7648039Abstract: A pressure-resistant tank for liquids includes a plurality of differently shaped diecast parts (1, 2) made of a first aluminum alloy (cast alloy). The diecast parts (1, 2) are connected by means of a closed weld seam welded with an electron beam with the use of a second aluminum alloy (wrought alloy). The second aluminum alloy has especially a hydrogen content of less than 0.2 mL per 100 g of wrought alloy. The tank for liquids is especially an anesthetic tank and the anesthetic is desflurane.Type: GrantFiled: June 6, 2005Date of Patent: January 19, 2010Assignee: Dräger Medical AG & Co. KGInventors: Claus Bunke, Matthias Witt, Rainer Kunz, Sven Heyer, Thomas Rossen, Henryk Schnaars
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Patent number: 7591263Abstract: A device is provided for measuring the differential pressure in anesthetic dispensing devices, with which the differential pressure can be measured between two lines (2, 6) for supplying gaseous components to a mixing site (3). The device has at least one differential pressure sensor (11), which is connected with the lines (2, 6) for supplying the gaseous components. Buffer elements (12, 12?) are integrated in the connection between the lines (2, 6) for supplying the gaseous components and the differential pressure sensor (11).Type: GrantFiled: June 28, 2005Date of Patent: September 22, 2009Assignee: Dräger Medical AG & Co. KGaAInventors: Claus Bunke, Matthias Witt, Rainer Kunz, Jürgen Müller, Sven Heyer, Heye Harms, Uwe Schmidt
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Patent number: 7317402Abstract: An alarm is associated with a device for dispensing volatile anesthetics. The alarm and device is designed such that an alarm is triggered whenever the operating voltage is interrupted and an assembly unit that determines the dispensing of at least one anesthetic is not in a prescribed state of operation.Type: GrantFiled: July 7, 2005Date of Patent: January 8, 2008Assignee: Dräger Medical AG & Co. KGaAInventors: Claus Bunke, Jürgen Müller, Matthias Witt, Sven Heyer, Michael Heidschmidt, Martin Wunderlich
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Patent number: 7290571Abstract: A filling device for an anesthetic evaporator has filling of an anesthetic evaporator is possible. To accomplish the object, an additional vent hole (36), which is opened immediately after the filling in order for excess anesthetic volume to be able to flow out of the filling device into the anesthetic tank (15) of the anesthetic evaporator (2), is provided within the filling device above a fluid channel (14), via which both the gas and liquid exchange takes place during the filling.Type: GrantFiled: June 15, 2005Date of Patent: November 6, 2007Assignee: Dräger Medical AG & Co. KGaAInventors: Claus Bunke, Matthias Witt, Rainer Kunz, Jürgen Müller, Sven Heyer, Dirk Reichert
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Patent number: 7287557Abstract: An anesthetic tank (1) of an anesthetic dispensing unit is used especially for desflurane and has improved reliability of operation by mutually complementing level monitoring devices. The anesthetic tank (1) is equipped with a level tube (3) arranged in or on the outer wall with a connection line (6) into the interior space as well as with an optical level sensor (4). The optical axis (5) of the level sensor (4) is located at the same level as a mark (33) on the level tube (3).Type: GrantFiled: May 27, 2005Date of Patent: October 30, 2007Assignee: Dräger Medical AG & Co. KGaAInventors: Claus Bunke, Matthias Witt, Rainer Kunz, Jürgen Müller, Sven Heyer, Dirk Reichert, Henryk Schnaars, Michael Heidschmidt, Martin Wunderlich, Ralf Dittmann
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Publication number: 20060087441Abstract: An alarm is associated with a device for dispensing volatile anesthetics. The alarm and device is designed such that an alarm is triggered whenever the operating voltage is interrupted and an assembly unit that determines the dispensing of at least one anesthetic is not in a prescribed state of operation.Type: ApplicationFiled: July 7, 2005Publication date: April 27, 2006Applicant: Drager Medical AG & Co. KGaAInventors: Claus Bunke, Jurgen Muller, Matthias Witt, Sven Heyer, Michael Heidschmidt, Martin Wunderlick
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Patent number: 7032595Abstract: A device for metering anesthetic is provided such that a new anesthetic is immediately available for the metering when the anesthetic is changed. The metering device has an assembly unit that can be removed from the medical apparatus as a module with a reservoir (4) for a liquid anesthetic, an intermediate container (9) arranged downstream of the reservoir (4), a metering gas source (11) connected to the intermediate container (9) and a metering element (14) for anesthetic on the discharge side of the intermediate container (9). An evaporator chamber (15) may be provided for evaporating the metered anesthetic. A connecting device lets through at least anesthetic vapor as an interface between the assembly unit (1) and the medical apparatus (2).Type: GrantFiled: September 5, 2002Date of Patent: April 25, 2006Assignee: Dräger Medical AG & Co. KGaAInventors: Claus Bunke, Uwe Bausch, Winfried Kimmig, Uwe Bartels, Sven Pasdzior, Bernhard Schaible, Heiko Dickfeld, Dirk-Stefan Reichert, Martin Meyer, Matthias Witt, Ralf Dittmann
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Publication number: 20060070622Abstract: A pressure-resistant tank for liquids includes a plurality of differently shaped diecast parts (1, 2) made of a first aluminum alloy (cast alloy). The diecast parts (1, 2) are connected by means of a closed weld seam welded with an electron beam with the use of a second aluminum alloy (wrought alloy). The second aluminum alloy has especially a hydrogen content of less than 0.2 mL per 100 g of wrought alloy. The tank for liquids is especially an anesthetic tank and the anesthetic is desflurane.Type: ApplicationFiled: June 6, 2005Publication date: April 6, 2006Applicant: Drager Medical AG & Co. KGaAInventors: Claus Bunke, Matthias Witt, Rainer Kunz, Sven Heyer, Thomas Rossen, Henryk Schnaars
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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: 20060060000Abstract: A device is provided for measuring the differential pressure in anesthetic dispensing devices, with which the differential pressure can be measured between two lines (2, 6) for supplying gaseous components to a mixing site (3). The device has at least one differential pressure sensor (11), which is connected with the lines (2, 6) for supplying the gaseous components. Buffer elements (12, 12?) are integrated in the connection between the lines (2, 6) for supplying the gaseous components and the differential pressure sensor (11).Type: ApplicationFiled: June 28, 2005Publication date: March 23, 2006Applicant: Drager Medical AG & Co. KGaAInventors: Claus Bunke, Matthias Witt, Rainer Kunz, Jurgen Muller, Sven Heyer, Heye Harms, Uwe Schmidt
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Publication number: 20060048842Abstract: A filling device for an anesthetic evaporator has filling of an anesthetic evaporator is possible. To accomplish the object, an additional vent hole (36), which is opened immediately after the filling in order for excess anesthetic volume to be able to flow out of the filling device into the anesthetic tank (15) of the anesthetic evaporator (2), is provided within the filling device above a fluid channel (14), via which both the gas and liquid exchange takes place during the filling.Type: ApplicationFiled: June 15, 2005Publication date: March 9, 2006Applicant: Drager Medical AG & Co. KGaAInventors: Claus Bunke, Matthias Witt, Rainer Kunz, Jurgen Muller, Sven Heyer, Dirk Reichert
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Publication number: 20060042626Abstract: An anesthetic tank (1) of an anesthetic dispensing unit is used especially for desflurane and has improved reliability of operation by mutually complementing level monitoring devices. The anesthetic tank (1) is equipped with a level tube (3) arranged in or on the outer wall with a connection line (6) into the interior space as well as with an optical level sensor (4). The optical axis (5) of the level sensor (4) is located at the same level as a mark (33) on the level tube (3).Type: ApplicationFiled: May 27, 2005Publication date: March 2, 2006Applicant: Drager Medical AG & Co. KgaAInventors: Claus Bunke, Matthias Witt, Rainer Kunz, Jurgen Muller, Sven Heyer, Dirk Reichert, Henryk Schnaars, Michael Heidschmidt, Martin Wunderlich, Ralf Dittmann
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Patent number: 6924478Abstract: Multiply charged ions are trapped and accumulated in a spatially limited region before being injected into an ion trap mass spectrometer such as a Fourier transform ion cyclotron resonance mass spectrometer (FTICR MS). In the ion trap electron capture dissociation (ECD) and vibrational excitation dissociation are sequentially applied on ions of the same ion ensemble. The first dissociation process does not fragment all primary ions. Following the detection of the dissociation products, the primary ions that remain undissociated undergo the vibrational excitation and again, a part of them dissociate, and the fragments are detected. Thus, the same ion ensemble is used for two fragmentation processes. During these processes, further ions generated in the external ion source are accumulated in the spatially limited region for subsequent analyses.Type: GrantFiled: May 18, 2004Date of Patent: August 2, 2005Assignee: Bruker Daltonik GmbHInventors: Roman Zubarev, Gökhan Baykut, Matthias Witt
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Patent number: 6899312Abstract: A pressure relief valve for flowing media has a closing element (6), whose closing force can be set with both the setting of the closing force and the brief release of the closing element (6) performed with a single setting element. Teeth (22, 23) are provided, by which the threaded sleeve (3) can be actuated such that it can perform a rotary movement and a lifting movement can be performed between the handwheel (2) and the threaded sleeve (3). The teeth are provided between a pin (21) of the handwheel (2) for setting the closing force and a threaded sleeve (3). The closing element (6) is connected to the handwheel (2) such that the closing element (6) follows the lifting movement of the handwheel (2).Type: GrantFiled: July 28, 2003Date of Patent: May 31, 2005Assignee: Dräger Medical AG & Co. KGaAInventors: Ahmet Türker, Matthias Witt
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Publication number: 20040046136Abstract: A pressure relief valve for flowing media has a closing element (6), whose closing force can be set with both the setting of the closing force and the brief release of the closing element (6) performed with a single setting element. Teeth (22, 23) are provided, by which the threaded sleeve (3) can be actuated such that it can perform a rotary movement and a lifting movement can be performed between the handwheel (2) and the threaded sleeve (3). The teeth are provided between a pin (21) of the handwheel (2) for setting the closing force and a threaded sleeve (3). The closing element (6) is connected to the handwheel (2) such that the closing element (6) follows the lifting movement of the handwheel (2).Type: ApplicationFiled: July 28, 2003Publication date: March 11, 2004Inventors: Ahmet Turker, Matthias Witt
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Publication number: 20030079745Abstract: A device for metering anesthetic is provided such that a new anesthetic is immediately available for the metering when the anesthetic is changed. The metering device has an assembly unit that can be removed from the medical apparatus as a module with a reservoir (4) for a liquid anesthetic, an intermediate container (9) arranged downstream of the reservoir (4), a metering gas source (11) connected to the intermediate container (9) and a metering element (14) for anesthetic on the discharge side of the intermediate container (9). An evaporator chamber (15) may be provided for evaporating the metered anesthetic. A connecting device lets through at least anesthetic vapor as an interface between the assembly unit (1) and the medical apparatus (2).Type: ApplicationFiled: September 5, 2002Publication date: May 1, 2003Inventors: Claus Bunke, Uwe Bausch, Winfried Kimmig, Uwe Bartels, Sven Pasdzior, Bernhard Schaible, Heiko Dickfeld, Dirk-Stefan Reichert, Martin Meyer, Matthias Witt, Ralf Dittmann
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Patent number: 6422237Abstract: An improved respirator with a breathing circuit (100) and a corresponding process for operating the respirator are provided. Defined breathing gas volumes can be delivered to the patient and the current operating state can be reliably monitored despite a strong breathing gas volume flow being delivered in the breathing circuit (100). A gas delivery element (1) designed as a rotary compressor is connected on the inlet side to a reversible breathing gas reservoir (7) and on the outlet side to a patient connection piece (9) for inspiration via a first gas volume flow sensor (2) with a first nonreturn valve (11). A second gas volume flow sensor (5) is located in the connection line between the patient connection piece (9) and the patient being inspirated. The patient connection piece (9) is connected for expiration to a second nonreturn valve (10) via a third gas volume flow sensor (3) and to the reversible breathing gas reservoir (7) via a controllable shut-off valve (4).Type: GrantFiled: December 27, 1999Date of Patent: July 23, 2002Assignee: Dräger Medizintechnik GmbHInventors: Dieter Engel, Jürgen Manigel, Claus Bunke, Matthias Witt
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Publication number: 20010050106Abstract: A nonretum valve with a valve disk (2) located on a valve seat (3) and with guide supports on the circumference of the valve disk is improved such that the wear on the guide supports is reduced to a minimum. This is accomplished with guide supports designed as pins (7) mounted in a rotatably movable manner.Type: ApplicationFiled: February 26, 2001Publication date: December 13, 2001Inventors: Ahmet Turker, Olaf Wohlenberg, Matthias Witt