Patents by Inventor Volker Matschl
Volker Matschl 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: 11835604Abstract: A method for ascertaining at least one of a position or an orientation of an MR local coil unit for arrangement inside a main magnetic field includes providing a first 3D relative position of a reference sensor system in relation to the main magnetic field; receiving an acceleration vector from at least one acceleration sensor; retrieving a distance vector describing a fixed relative position as a function of the received acceleration vector; calculating a second 3D relative position of the at least one acceleration sensor in relation to the main magnetic field based on the first 3D relative position and the retrieved distance vector; and ascertaining the at least one of the position or the orientation of the MR local coil unit using the first 3D relative position and the second 3D relative position.Type: GrantFiled: July 26, 2022Date of Patent: December 5, 2023Assignee: Siemens Healthcare GmbHInventors: Johann Sukkau, Volker Matschl, Steffen Schroeter
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Publication number: 20230118471Abstract: At least one example embodiment provides a magnetic resonance imaging system comprising at least one local radiofrequency (RF) coil; and at least one marker element, wherein the magnetic resonance imaging system is configured to activate the at least one marker element and deactivate the at least one marker element such that the at least one marker element is detectable by the magnetic resonance imaging system at a position relative to the at least one local RF coil if the at least one marker element is activated, and the at least one marker element is not detectable by the magnetic resonance imaging system if the at least one marker element is deactivated.Type: ApplicationFiled: October 14, 2022Publication date: April 20, 2023Inventors: Johann SUKKAU, Volker Matschl, Steffen Schroeter
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Publication number: 20230033812Abstract: A method for ascertaining at least one of a position or an orientation of an MR local coil unit for arrangement inside a main magnetic field includes providing a first 3D relative position of a reference sensor system in relation to the main magnetic field; receiving an acceleration vector from at least one acceleration sensor; retrieving a distance vector describing a fixed relative position as a function of the received acceleration vector; calculating a second 3D relative position of the at least one acceleration sensor in relation to the main magnetic field based on the first 3D relative position and the retrieved distance vector; and ascertaining the at least one of the position or the orientation of the MR local coil unit using the first 3D relative position and the second 3D relative position.Type: ApplicationFiled: July 26, 2022Publication date: February 2, 2023Applicant: Siemens Healthcare GmbHInventors: Johann SUKKAU, Volker MATSCHL, Steffen SCHROETER
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Patent number: 11226384Abstract: A system and method are provided for operating a magnetic resonance tomograph. A transmitter of the magnetic resonance tomograph transmits a predetermined test pulse with a reduced power. The magnetic resonance tomograph receives the test pulse with the local coil. A controller compares the received test pulse with a predetermined pulse response and emits a warning signal when the received test signal differs from the predetermined pulse response.Type: GrantFiled: December 10, 2019Date of Patent: January 18, 2022Assignee: Siemens Healthcare GmbHInventors: Jürgen Nistler, Volker Matschl, Stephan Biber, Rainer Kurth, Christian Wünsch, Georg Martschenko
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Patent number: 11131730Abstract: A magnetic resonance coil having at least one tuning device for tuning the magnetic resonance coil, a magnetic resonance device, and a method for tuning a magnetic resonance coil are provided. The at least one tuning device includes a plurality of capacitors that are mechanically interlinked.Type: GrantFiled: September 13, 2018Date of Patent: September 28, 2021Assignee: Siemens Healthcare GmbHInventors: Ludwig Eberler, Razvan Lazar, Volker Matschl, Jürgen Nistler, Martin Schramm
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Patent number: 10930428Abstract: The disclosure relates to a compensation capacitor for an antenna of a magnetic resonance scanner and a corresponding antenna with a compensation capacitor. The compensation capacitor has a first electrode and a second electrode arranged in parallel. An insulation material configured to resist high voltages and a dielectric with low dielectric losses are arranged between the first and the second electrode. The second electrode and/or the dielectric may be moved relative to the first electrode such that a surface area of a projection of the surface of the first electrode along the surface normal of the first electrode to the surface of the second electrode and/or the dielectric is variable.Type: GrantFiled: July 5, 2018Date of Patent: February 23, 2021Assignee: Siemens Healthcare GmbHInventors: Ludwig Eberler, Razvan Lazar, Volker Matschl, Jürgen Nistler, Martin Schramm
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Publication number: 20200191890Abstract: A system and method are provided for operating a magnetic resonance tomograph. A transmitter of the magnetic resonance tomograph transmits a predetermined test pulse with a reduced power. The magnetic resonance tomograph receives the test pulse with the local coil. A controller compares the received test pulse with a predetermined pulse response and emits a warning signal when the received test signal differs from the predetermined pulse response.Type: ApplicationFiled: December 10, 2019Publication date: June 18, 2020Inventors: Jürgen Nistler, Volker Matschl, Stephan Biber, Rainer Kurth, Christian Wünsch, Georg Martschenko
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Publication number: 20200100701Abstract: The disclosure relates to a vascular access device, comprising a vascular cannula having a catheter portion for insertion into a blood vessel such as a vein of a patient, and a fixing portion for fixing the vascular cannula to a skin of a patient. The fixing portion and/or a plaster used to fix the fixing portion to the skin comprises at least one local reception coil element for receiving magnetic resonance signals.Type: ApplicationFiled: September 26, 2019Publication date: April 2, 2020Applicant: Siemens Healthcare GmbHInventors: Arne Hengerer, Volker Matschl
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Patent number: 10591559Abstract: Radio-frequency (RF) coil apparatus for magnetic resonance imaging has a base and an RF coil, wherein the base has a sliding base guide structure and a guide cavity, the RF coil has a sliding coil structure fitting the sliding base guide structure, and an electric cable of the RF coil is accommodated in the guide cavity and can move in the guide cavity. One end of the electric cable is fixed to the RF coil by a first fixing bracket, and another end of the electric cable is fixed to the base by a second fixing bracket so that a predetermined length of the cable projects from the base.Type: GrantFiled: March 2, 2018Date of Patent: March 17, 2020Assignee: Siemens Healthcare GmbHInventors: Jun You, Zeng He He, Stephan Zink, Volker Matschl, Wen Ming Li, Rainer Kurth
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Patent number: 10557900Abstract: The embodiments relate to a body coil, to a magnetic resonance device, and to a method for operating a magnetic resonance device. The body coil includes at least one antenna unit and at least one pre-amplification unit, wherein the pre-amplification unit is arranged at a feed point of the antenna unit, wherein the pre-amplification unit has an input reflection factor at the feed point of the antenna unit whose value is greater than 0.7.Type: GrantFiled: July 1, 2016Date of Patent: February 11, 2020Assignee: Siemens Healthcare GmbHInventors: Ludwig Eberler, Volker Matschl, Jürgen Nistler
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Patent number: 10500012Abstract: The present embodiments relate to an MR local coil arrangement and an MR unit. An MR local coil arrangement is disclosed including at least one MR antenna, an illumination unit with at least one light-generating unit to illuminate an illumination region, and a switching unit with at least one sensor to control the illumination unit.Type: GrantFiled: August 16, 2017Date of Patent: December 10, 2019Assignee: Siemens Healthcare GmbHInventors: Andre Bender, Daniel Gareis, Manuel Noras, Rainer Kurth, Volker Matschl, Heinrich von Busch
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Patent number: 10353026Abstract: In order to provide interventional access during an image-guided interventional procedure, while increasing the signal-to-noise ratio for generated images compared to a single loop coil, a local coil includes a single coil element disposed around an opening through the local coil and two coil elements positioned on opposite sides of the single coil element. The opening provides access for an interventional tool used during the image-guided interventional procedure.Type: GrantFiled: June 15, 2016Date of Patent: July 16, 2019Assignees: SIEMENS AKTIENGESELLSCHAFT, QUALITY ELECTRODYNAMICS (QED)Inventors: Matthew Finnerty, Arne Hengerer, Volker Matschl, Gregory Weisberg, Tsinghua Zheng
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Patent number: 10241164Abstract: A device and a method are provided for status acquisition of a RF coil on or in a magnetic resonance device. The device may be arranged on the RF coil and comprises a status acquisition unit. The status unit is configured to acquire a status of the RF coil and to generate a status-dependent output signal.Type: GrantFiled: December 21, 2015Date of Patent: March 26, 2019Assignee: Siemens AktiengesellschaftInventors: Hubertus Fischer, Volker Matschl, Helmut Stark, Johann Sukkau
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Publication number: 20190079153Abstract: A magnetic resonance coil having at least one tuning device for tuning the magnetic resonance coil, a magnetic resonance device, and a method for tuning a magnetic resonance coil are provided. The at least one tuning device includes a plurality of capacitors that are mechanically interlinked.Type: ApplicationFiled: September 13, 2018Publication date: March 14, 2019Inventors: Ludwig Eberler, Razvan Lazar, Volker Matschl, Jürgen Nistler, Martin Schramm
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Patent number: 10209325Abstract: A configurable coil arrangement for use with MRI-guided procedures is provided that facilitates optimal imaging for both pre-procedure planning and imaging of the target sites during the procedure. The coil arrangement includes a plurality of connected coil elements. Spacers connecting the coil elements can be adjustable and/or deformable to provide one or more openings in the coil arrangement of optimal size for accessing the subject within the imaged region. Individual coil elements can also be removed to provide access openings during such procedures, or left in the array for improved pre- and post-procedure image quality. The MRI system can be configured to detect configurations of the coil arrangement and modify imaging parameters to optimize image quality.Type: GrantFiled: February 29, 2016Date of Patent: February 19, 2019Assignees: Siemens Healthcare GmbH, The Johns Hopkins UniversityInventors: Eva Rothgang, Volker Matschl, Arne Hengerer, Lars Lauer, Wesley David Gilson, Jonathan Lewin, Jan Fritz, Clifford Weiss, Katarzyna Macura, Paul Bottomley
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Publication number: 20190019620Abstract: The disclosure relates to a compensation capacitor for an antenna of a magnetic resonance scanner and a corresponding antenna with a compensation capacitor. The compensation capacitor has a first electrode and a second electrode arranged in parallel. An insulation material configured to resist high voltages and a dielectric with low dielectric losses are arranged between the first and the second electrode. The second electrode and/or the dielectric may be moved relative to the first electrode such that a surface area of a projection of the surface of the first electrode along the surface normal of the first electrode to the surface of the second electrode and/or the dielectric is variable.Type: ApplicationFiled: July 5, 2018Publication date: January 17, 2019Inventors: Ludwig Eberler, Razvan Lazar, Volker Matschl, Jürgen Nistler, Martin Schramm
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Publication number: 20180252782Abstract: Radio-frequency (RF) coil apparatus for magnetic resonance imaging has a base and an RF coil, wherein the base has a sliding base guide structure and a guide cavity, the RF coil has a sliding coil structure fitting the sliding base guide structure, and an electric cable of the RF coil is accommodated in the guide cavity and can move in the guide cavity. One end of the electric cable is fixed to the RF coil by a first fixing bracket, and another end of the electric cable is fixed to the base by a second fixing bracket so that a predetermined length of the cable projects from the base.Type: ApplicationFiled: March 2, 2018Publication date: September 6, 2018Applicant: Siemens Shenzhen Magnetic Resonance Ltd.Inventors: Jun You, Zeng He He, Stephan Zink, Volker Matschl, Wen Ming Li, Rainer Kurth
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Patent number: 9945916Abstract: A device for a magnetic resonance imaging system includes a warning signal apparatus configured to emit a warning signal when a limit value is exceeded by a current induced in the device by radiofrequency signals of a magnetic resonance imaging system.Type: GrantFiled: August 2, 2014Date of Patent: April 17, 2018Assignee: Siemens AktiengesellschaftInventor: Volker Matschl
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Publication number: 20180049841Abstract: The present embodiments relate to an MR local coil arrangement and an MR unit. An MR local coil arrangement is disclosed including at least one MR antenna, an illumination unit with at least one light-generating unit to illuminate an illumination region, and a switching unit with at least one sensor to control the illumination unit.Type: ApplicationFiled: August 16, 2017Publication date: February 22, 2018Inventors: Andre Bender, Daniel Gareis, Manuel Noras, Rainer Kurth, Volker Matschl, Heinrich von Busch
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Publication number: 20170248666Abstract: A configurable coil arrangement for use with MRI-guided procedures is provided that facilitates optimal imaging for both pre-procedure planning and imaging of the target sites during the procedure. The coil arrangement includes a plurality of connected coil elements. Spacers connecting the coil elements can be adjustable and/or deformable to provide one or more openings in the coil arrangement of optimal size for accessing the subject within the imaged region. Individual coil elements can also be removed to provide access openings during such procedures, or left in the array for improved pre- and post-procedure image quality. The MRI system can be configured to detect configurations of the coil arrangement and modify imaging parameters to optimize image quality.Type: ApplicationFiled: February 29, 2016Publication date: August 31, 2017Inventors: Eva Rothgang, Volker Matschl, Arne Hengerer, Lars Lauer, Wesley David Gilson, Jonathan Lewin, Jan Fritz, Clifford Weiss, Katarzyna Macura, Paul Bottomley