Patents by Inventor Ludwig Kreischer
Ludwig Kreischer 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: 10267876Abstract: A magnetic resonance apparatus has a scanner with a superconducting basic field magnet, a gradient coil unit, and a radio-frequency antenna unit, an electronics unit, and a cooling apparatus. The cooling apparatus has a cryostat for cooling the superconducting basic field magnet and a first cooling circuit for cooling the electronics unit and/or the gradient coil unit and/or the radio-frequency antenna unit, and a second cooling circuit for cooling the cryostat.Type: GrantFiled: September 28, 2015Date of Patent: April 23, 2019Assignee: Siemens AktiengesellschaftInventor: Ludwig Kreischer
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Patent number: 10261484Abstract: In method for operating a magnetic resonance apparatus that has a gradient power amplifier that supplies a voltage to a gradient coil, and a gradient power amplifier control processor that provides control a control signal thereto that predetermines the aforementioned voltage, and a simulation computer that models an operational characteristic of each of the gradient coil the gradient power amplifier, an actual current value of a current fed into the gradient coil by the gradient power amplifier is measured and a target current value of the current fed into the gradient coil by the gradient power amplifier is determined by the simulation computer, using the control signal as an input variable. A fault signal is generated as a function of a determined deviation in the actual current value from the target current value.Type: GrantFiled: September 11, 2015Date of Patent: April 16, 2019Assignee: Siemens AktiengesellschaftInventors: Aleksandar Juloski, Ludwig Kreischer, Stefan Nowak
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Patent number: 9952878Abstract: In a system and operating method wherein the system includes a medical apparatus and an operator console, a first input processor is assigned to the operator console and acquires a shutdown command that triggers a shutdown operation of the operator console, and a second input processor is assigned to the medical apparatus and acquires a startup command that triggers a startup operation of the medical device. A first interface forwards the shutdown command from the operator console to the medical apparatus wherein a shutdown operation of the medical apparatus is triggered, and a second interface forwards the startup command from the medical apparatus to the operator console, wherein a startup operation of the operator console is triggered.Type: GrantFiled: July 22, 2016Date of Patent: April 24, 2018Assignee: Siemens Healthcare GmbHInventors: Andreas Grimme, Rolf Heinrichs, Ludwig Kreischer, Andreas Schmidt
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Publication number: 20170024220Abstract: In a system and operating method wherein the system includes a medical apparatus and an operator console, a first input processor is assigned to the operator console and acquires a shutdown command that triggers a shutdown operation of the operator console, and a second input processor is assigned to the medical apparatus and acquires a startup command that triggers a startup operation of the medical device. A first interface forwards the shutdown command from the operator console to the medical apparatus wherein a shutdown operation of the medical apparatus is triggered, and a second interface forwards the startup command from the medical apparatus to the operator console, wherein a startup operation of the operator console is triggered.Type: ApplicationFiled: July 22, 2016Publication date: January 26, 2017Applicant: Siemens Healthcare GmbHInventors: Andreas Grimme, Rolf Heinrichs, Ludwig Kreischer, Andreas Schmidt
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Publication number: 20160091580Abstract: A magnetic resonance apparatus has a scanner with a superconducting basic field magnet, a gradient coil unit, and a radio-frequency antenna unit, an electronics unit, and a cooling apparatus. The cooling apparatus has a cryostat for cooling the superconducting basic field magnet and a first cooling circuit for cooling the electronics unit and/or the gradient coil unit and/or the radio-frequency antenna unit, and a second cooling circuit for cooling the cryostat.Type: ApplicationFiled: September 28, 2015Publication date: March 31, 2016Applicant: SIEMENS AKTIENGESELLSCHAFTInventor: Ludwig Kreischer
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Publication number: 20160077173Abstract: In method for operating a magnetic resonance apparatus that has a gradient power amplifier that supplies a voltage to a gradient coil, and a gradient power amplifier control processor that provides control a control signal thereto that predetermines the aforementioned voltage, and a simulation computer that models an operational characteristic of each of the gradient coil the gradient power amplifier, an actual current value of a current fed into the gradient coil by the gradient power amplifier is measured and a target current value of the current fed into the gradient coil by the gradient power amplifier is determined by the simulation computer, using the control signal as an input variable. A fault signal is generated as a function of a determined deviation in the actual current value from the target current value.Type: ApplicationFiled: September 11, 2015Publication date: March 17, 2016Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Aleksandar Juloski, Ludwig Kreischer, Stefan Nowak
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Patent number: 9176510Abstract: A voltage equalization device for equalizing voltage fluctuations in a voltage supply is provided. The voltage supply has an electrical voltage that is as constant as possible. The voltage equalization device has at least one transformer unit which has a primary winding unit and a secondary winding unit and, on one of the two winding units, has at least three or more selection units for switching in or switching out turns of the winding unit. Two adjacent selection units are so arranged in each case as to be separated from one another by a distance having a number of turns. The number of turns between two first adjacent selection units is different from the number of turns between two further adjacent selection units.Type: GrantFiled: January 18, 2013Date of Patent: November 3, 2015Assignee: SIEMENS AKTIENGESELLSCHAFTInventor: Ludwig Kreischer
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Publication number: 20150007390Abstract: A patient transport system includes a patient transport device configured to be docked on a medical instrument, and a detection device configured to determine information relevant to an approach, occurring during docking, of the patient transport device to the medical instrument. The patient transport system assists the docking procedure of the patient transport device on the medical instrument.Type: ApplicationFiled: July 4, 2014Publication date: January 8, 2015Inventors: Sultan Haider, Ludwig Kreischer
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Publication number: 20140331406Abstract: A patient transportation system includes: a patient transportation device configured to dock with a medical instrument, the patient transportation device having a plurality of wheels; a registration apparatus configured to register information; and a control unit configured to change at least one wheel position of at least one wheel of the plurality of wheels based on information registered by the registration apparatus. The system may be used to assist operating staff when the patient transportation device approaches the medical instrument.Type: ApplicationFiled: April 11, 2014Publication date: November 13, 2014Inventors: Sultan Haider, Ludwig Kreischer
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Patent number: 8726434Abstract: The invention relates to a support apparatus on which a patient can be supported in a comfortable and secure manner for the preparation for an examination and for the examination, in particular an endorectal biopsy. The support apparatus comprises a sliding apparatus connected to a bearing substructure and is supported in a displaceable manner on the sliding apparatus so that it can be moved partially beyond the substructure connected to the sliding apparatus. The support apparatus also comprises a cutout. The invention also relates to a patient support table comprising a connecting apparatus to connect the patient support table to the support apparatus and serving as a bearing substructure for the support apparatus. A medical device, in particular an MR device, is also disclosed comprising a patient tunnel and the patient support table that can be introduced into the patient tunnel.Type: GrantFiled: September 24, 2009Date of Patent: May 20, 2014Assignee: Siemens AktiengesellschaftInventors: Joachim Gunkel, Hans-Peter Hollenbach, Ludwig Kreischer, Markus Petsch
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Publication number: 20130187622Abstract: A voltage equalization device for equalizing voltage fluctuations in a voltage supply is provided. The voltage supply has an electrical voltage that is as constant as possible. The voltage equalization device has at least one transformer unit which has a primary winding unit and a secondary winding unit and, on one of the two winding units, has at least three or more selection units for switching in or switching out turns of the winding unit. Two adjacent selection units are so arranged in each case as to be separated from one another by a distance having a number of turns. The number of turns between two first adjacent selection units is different from the number of turns between two further adjacent selection units.Type: ApplicationFiled: January 18, 2013Publication date: July 25, 2013Inventor: Ludwig Kreischer
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Publication number: 20130184566Abstract: An antenna system for a magnetic resonance imaging system includes a plurality of antenna elements. The antenna elements are arranged in, at, or on support elements. The support elements are constructed so as to be non-expandable and have a constant surface dimension. Adjacent support elements are connected to an expandable connecting element. The dimensions of the connecting element may be changed by the expansion.Type: ApplicationFiled: January 16, 2013Publication date: July 18, 2013Inventors: Ludwig Kreischer, Volker Matschl
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Patent number: 8132276Abstract: A simplify mobile patient support apparatus which is suitable for an examination of a patient by a magnetic resonance tomography system is proposed. A first and second actuation facility and a control facility are used. Depending on the operating state of the patient support apparatus whether is docked with or undocked from the magnetic resonance tomography system, actuation of the first and second actuation facilities results either in the coupling or uncoupling of the patient support apparatus to/from the magnetic resonance tomography system or the raising or lowering of a patient support plate of the patient support apparatus. Essential components for docking or undocking or for the vertical adjustment of the patient support plate are integrated in a hydraulic unit.Type: GrantFiled: September 22, 2010Date of Patent: March 13, 2012Assignee: Siemens AktiengesellschaftInventors: Tobias Klemm, Ludwig Kreischer, Mathias Peters, Christian Streitberger
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Patent number: 8108027Abstract: A combined positron emission tomography/magnetic resonance imaging apparatus including a positron emission tomography apparatus having at least one radiation detector, and a magnetic resonance imaging apparatus having at least one gradient coil and a radio-frequency antenna device. At least one embodiment of the combined position emission tomography/magnetic resonance imaging apparatus is developed further in that a first molding is provided, whose surface coincides with the inner shell of the at least one gradient coil, and a second molding is provided, whose surface coincides with the outer shell of the radiation detector, the distance between the two shells being virtually constant over the circumference of the shells, and a vacuum seal being arranged in each case along at least a first and a second circumferential line such that a closed cavity is formed between the vacuum seals.Type: GrantFiled: June 23, 2008Date of Patent: January 31, 2012Assignee: Siemens AktiengesellschaftInventors: Ludwig Kreischer, Jürgen Nistler, Martin Rausch, Wolfgang Renz, Norbert Rietsch
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Publication number: 20110067179Abstract: A simplify mobile patient support apparatus which is suitable for an examination of a patient by a magnetic resonance tomography system is proposed. A first and second actuation facility and a control facility are used. Depending on the operating state of the patient support apparatus whether is docked with or undocked from the magnetic resonance tomography system, actuation of the first and second actuation facilities results either in the coupling or uncoupling of the patient support apparatus to/from the magnetic resonance tomography system or the raising or lowering of a patient support plate of the patient support apparatus. Essential components for docking or undocking or for the vertical adjustment of the patient support plate are integrated in a hydraulic unit.Type: ApplicationFiled: September 22, 2010Publication date: March 24, 2011Inventors: Tobias Klemm, Ludwig Kreischer, Mathias Peters, Christian Streitberger
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Publication number: 20110047700Abstract: An optimized patient table arrangement for a medical examination device is described. The arrangement has a patient support table and a carrier arrangement on which the patient support table is movably arranged. The arrangement further has a movement device through which the patient support table is able to be moved relative to the medical examination device and a drive device through which the movement device is able to be driven. The movement device has two belts which are able to be meshed with one another in a zip and are able to be moved in parallel to one another along an essentially straight path. The belt elements each has belt drive engagement devices on one site that engage into drive engagement units of a drive wheel.Type: ApplicationFiled: August 20, 2010Publication date: March 3, 2011Inventors: Tobias Klemm, Ludwig Kreischer, Christian Streitberger
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Publication number: 20100071131Abstract: The invention relates to a support apparatus on which a patient can be supported in a comfortable and secure manner for the preparation for an examination and for the examination, in particular an endorectal biopsy. The support apparatus comprises a sliding apparatus connected to a bearing substructure and is supported in a displaceable manner on the sliding apparatus so that it can be moved partially beyond the substructure connected to the sliding apparatus. The support apparatus also comprises a cutout. The invention also relates to a patient support table comprising a connecting apparatus to connect the patient support table to the support apparatus and serving as a bearing substructure for the support apparatus. A medical device, in particular an MR device, is also disclosed comprising a patient tunnel and the patient support table that can be introduced into the patient tunnel.Type: ApplicationFiled: September 24, 2009Publication date: March 25, 2010Inventors: Joachim Gunkel, Hans-Peter Hollenbach, Ludwig Kreischer, Markus Petsch
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Patent number: 7634827Abstract: A module of a support apparatus (5) of a medical examination and treatment device, in particular of a magnetic resonance device (3), comprises the following features: a base unit (52) and a support unit (54) to support an examination object (1), which can travel in the horizontal direction in respect of the base unit (52), and a bracket unit (70) acting between the base unit (52) and the support unit (54), it being possible to move said bracket unit (70) against the base unit (52) and the support unit (54) and with which the support unit (54) can travel beyond the base unit (52).Type: GrantFiled: December 1, 2004Date of Patent: December 22, 2009Assignee: Siemens AktiengesellschaftInventors: Klaus Gagneur, Ludwig Kreischer, Tino Völker, Herbert Weiler
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Patent number: 7560930Abstract: The present invention discloses a magnetic resonance imaging apparatus for scanning a spine, comprising a body coil for emitting signals, a patient table within the body coil and a spine coil for receiving signals, wherein said spine coil is fixed within said body coil and disposed under said patient table. Said patient table is movable within said body coil by slide rails fitted at the two sides thereof, so as to reduce the length of said spine coil. The cross section of said patient table is in an arched shape, and the cross section of said spine coil is in an arched shape which matches that of said patient table.Type: GrantFiled: February 28, 2008Date of Patent: July 14, 2009Assignee: Siemens AktiengesellschaftInventors: Jian Jun Du, Ludwig Kreischer, Jian Zhong Li, Jian Hua Pei
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Patent number: D844789Type: GrantFiled: October 28, 2016Date of Patent: April 2, 2019Assignee: Siemens Healthcare GmbHInventors: Christian Hetz, Ludwig Kreischer