Patents by Inventor Bruce Courtney Campbell Amm
Bruce Courtney Campbell Amm 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: 10874324Abstract: Implementations are disclosed for monitoring a state or change in state of a physiological parameter based on measured impedance data. In certain implementations, no images are reconstructed from the impedance data. In certain implementations, a metric (e.g., distinguishability, likelihood ratios, and so forth) may be computed and compared to reference metrics or thresholds, such as for changes over time or in comparison to a standard to determine the presence or absence of a physiological state of interest or of a change in such state.Type: GrantFiled: October 20, 2015Date of Patent: December 29, 2020Assignee: GENERAL ELECTRIC COMPANYInventors: Gregory Boverman, Tzu-Jen Kao, Bruce Courtney Campbell Amm, Jeffrey Michael Ashe, David Michael Davenport
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Patent number: 10357178Abstract: A method includes applying a plurality of currents to a plurality of electrodes disposed on a surface surrounding an anatomical region in a subject. Further, the method includes measuring a plurality of voltages generated in response to the plurality of currents. The method also includes selecting a coarse-scale basis corresponding to a response function associated with the plurality of electrodes. Moreover, the method includes determining simultaneously an internal admittivity corresponding to the anatomical region and a contact impedance corresponding to the plurality of electrodes based on the plurality of voltages and the coarse-scale basis. The method also includes reconstructing the diagnostic image based on the internal admittivity.Type: GrantFiled: December 16, 2015Date of Patent: July 23, 2019Assignee: General Electric CompanyInventors: Gregory Boverman, David Michael Davenport, Jeffrey Michael Ashe, Bruce Courtney Campbell Amm
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Patent number: 10357177Abstract: A method and system for performing electrical impedance imaging of a subject of interest using a plurality of electrodes is provided. The method includes applying one or more determined current patterns to one or more electrodes of the plurality of electrodes. Further, the method includes determining a resultant voltage at at least one electrode of the one or more electrodes in response to the one or more determined current patterns. Moreover, the method includes estimating a change in a contact impedance for the at least one electrode of the one or more electrodes. Additionally, the method includes calculating a compensated voltage for the at least one electrode based on an estimated change in a corresponding contact impedance of the at least one electrode.Type: GrantFiled: December 13, 2013Date of Patent: July 23, 2019Assignee: General Electric CompanyInventors: Gregory Boverman, Jeffrey Michael Ashe, Bruce Courtney Campbell Amm
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Publication number: 20170172451Abstract: A method includes applying a plurality of currents to a plurality of electrodes disposed on a surface surrounding an anatomical region in a subject. Further, the method includes measuring a plurality of voltages generated in response to the plurality of currents. The method also includes selecting a coarse-scale basis corresponding to a response function associated with the plurality of electrodes. Moreover, the method includes determining simultaneously an internal admittivity corresponding to the anatomical region and a contact impedance corresponding to the plurality of electrodes based on the plurality of voltages and the coarse-scale basis. The method also includes reconstructing the diagnostic image based on the internal admittivity.Type: ApplicationFiled: December 16, 2015Publication date: June 22, 2017Inventors: Gregory Boverman, David Michael Davenport, Jeffrey Michael Ashe, Bruce Courtney Campbell Amm
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Publication number: 20170105648Abstract: Implementations are disclosed for monitoring a state or change in state of a physiological parameter based on measured impedance data. In certain implementations, no images are reconstructed from the impedance data. In certain implementations, a metric (e.g., distinguishability, likelihood ratios, and so forth) may be computed and compared to reference metrics or thresholds, such as for changes over time or in comparison to a standard to determine the presence or absence of a physiological state of interest or of a change in such state.Type: ApplicationFiled: October 20, 2015Publication date: April 20, 2017Inventors: Gregory Boverman, Tzu-Jen Kao, Bruce Courtney Campbell Amm, Jeffrey Michael Ashe, David Michael Davenport
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Publication number: 20170100059Abstract: A signal of a current-voltage sensor array in one embodiment is processed for output of data in a form for use by a care provider. The current-voltage sensor array in one embodiment is a non-invasive current-voltage sensor array adapted to surround a thorax of a patient. The output of data in one embodiment is provided in a lung function visualization output form that depicts functioning of a patient's lungs.Type: ApplicationFiled: October 9, 2015Publication date: April 13, 2017Applicant: GENERAL ELECTRIC COMPANYInventors: Tzu-Jen KAO, David Michael DAVENPORT, Jeffrey Michael ASHE, Bruce Courtney Campbell AMM
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Patent number: 9355774Abstract: The embodiments disclosed herein relate generally to magnetic resonance imaging systems and, more specifically, to the manufacturing of a gradient coil assembly for magnetic resonance imaging (MRI) systems. For example, in one embodiment, a method includes ultrasonically consolidating a plurality of sheets of a conductive material to form a consolidated structure and machining one or more conductive channels into the consolidated structure to form an inductor.Type: GrantFiled: December 28, 2012Date of Patent: May 31, 2016Assignee: General Electric CompanyInventors: Jean-Baptiste Mathieu, Yanzhe Yang, Bruce Courtney Campbell Amm, Silke Maria Lechner-Greite
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Publication number: 20150164369Abstract: A method and system for performing electrical impedance imaging of a subject of interest using a plurality of electrodes is provided. The method includes applying one or more determined current patterns to one or more electrodes of the plurality of electrodes. Further, the method includes determining a resultant voltage at at least one electrode of the one or more electrodes in response to the one or more determined current patterns. Moreover, the method includes estimating a change in a contact impedance for the at least one electrode of the one or more electrodes. Additionally, the method includes calculating a compensated voltage for the at least one electrode based on an estimated change in a corresponding contact impedance of the at least one electrode.Type: ApplicationFiled: December 13, 2013Publication date: June 18, 2015Applicant: General Electric CompanyInventors: Gregory Boverman, Jeffrey Michael Ashe, Bruce Courtney Campbell Amm
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Publication number: 20140184372Abstract: The embodiments disclosed herein relate generally to magnetic resonance imaging systems and, more specifically, to the manufacturing of a gradient coil assembly for magnetic resonance imaging (MRI) systems. For example, in one embodiment, a method includes ultrasonically consolidating a plurality of sheets of a conductive material to form a consolidated structure and machining one or more conductive channels into the consolidated structure to form an inductor.Type: ApplicationFiled: December 28, 2012Publication date: July 3, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Jean-Baptiste Mathieu, Yanzhe Yang, Bruce Courtney Campbell Amm, Silke Maria Lechner-Greite
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Patent number: 8704520Abstract: A radio frequency (RF) coil for a magnetic resonance imaging (MRI) system includes a first end ring, a second end ring, and a plurality of rungs electrically coupled between the first and second end rings, each rung including a first rung portion formed from a plurality of conductors and a second rung portion formed from a single solid conductor. A resonance assembly for a magnetic resonance imaging (MRI) system and an MRI imaging system are also described herein.Type: GrantFiled: December 8, 2010Date of Patent: April 22, 2014Assignee: General Electric CompanyInventors: Saikat Saha, Thomas Kwok-fah Foo, Bruce Courtney Campbell Amm, Jean-Baptiste Mathieu, Robert Arvin Hedeen
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Publication number: 20120153952Abstract: Methods, systems and computer program products are described for providing gradient linearity correction in a magnetic resonance image. The method in one example obtains, using a simulation, a time-dependent eddy current induced magnetic gradient field produced by a gradient system in response to a gradient switching pulse. Subsequently, the method determines time-dependent eddy current harmonic response coefficients for at least one higher harmonic frequency based upon the time-dependent eddy current induced magnetic gradient field. The method then corrects the magnetic resonance image based upon the time-dependent eddy current harmonic response coefficients.Type: ApplicationFiled: December 16, 2010Publication date: June 21, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Silke Maria Lechner, Timothy James Hollis, Bruce Courtney Campbell Amm
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Publication number: 20120146643Abstract: A radio frequency (RF) coil for a magnetic resonance imaging (MRI) system includes a first end ring, a second end ring, and a plurality of rungs electrically coupled between the first and second end rings, each rung including a first rung portion formed from a plurality of conductors and a second rung portion formed from a single solid conductor. A resonance assembly for a magnetic resonance imaging (MRI) system and an MRI imaging system are also described herein.Type: ApplicationFiled: December 8, 2010Publication date: June 14, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: SAIKAT SAHA, THOMAS KWOK-fah FOO, BRUCE COURTNEY CAMPBELL AMM, JEAN-BAPTISTE MATHIEU, ROBERT ARVIN HEDEEN
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Patent number: 8169220Abstract: A gradient coil and an insert gradient coil for a magnetic resonance imaging system include a primary coil. The primary coil includes an upper primary coil portion and a lower primary coil portion, the lower primary coil portion being less curved in cross-section than the upper primary coil portion. The gradient coil also includes a shielding coil disposed outside of the primary coil. The shielding coil includes an upper shielding coil portion and a lower shielding coil portion, the lower shielding coil portion being less curved in cross-section than the upper shielding coil portion.Type: GrantFiled: December 15, 2009Date of Patent: May 1, 2012Assignee: General Electric CompanyInventors: Timothy James Hollis, Neil Clarke, Chris Mark Cirel, Bruce Courtney Campbell Amm, Michael Ben Sellers
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Publication number: 20120025829Abstract: A gradient coil assembly is provided. The gradient coil assembly includes a cylindrical element. The cylindrical element has an inner surface and an outer surface. At least one first isolation material is disposed over the outer surface of the cylindrical element. A conducting material is disposed over the isolation material. A method to form the gradient coil assembly is also provided.Type: ApplicationFiled: July 27, 2010Publication date: February 2, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Abdurrahman Abdallah Khalidi, Robert Arvin Hedeen, Eric George Budesheim, Bruce Courtney Campbell Amm
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Publication number: 20110140695Abstract: A gradient coil and an insert gradient coil for a magnetic resonance imaging system include a primary coil. The primary coil includes an upper primary coil portion and a lower primary coil portion, the lower primary coil portion being less curved in cross-section than the upper primary coil portion. The gradient coil also includes a shielding coil disposed outside of the primary coil. The shielding coil includes an upper shielding coil portion and a lower shielding coil portion, the lower shielding coil portion being less curved in cross-section than the upper shielding coil portion.Type: ApplicationFiled: December 15, 2009Publication date: June 16, 2011Applicant: General Electric CompanyInventors: Timothy James Hollis, Neil Clarke, Chris Mark Cirel, Bruce Courtney Campbell Amm, Michael Ben Sellers
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Patent number: 7812604Abstract: A thermal management system for cooling a heat generating component of a Magnetic Resonance Imaging (MRI) apparatus includes at least one heat pipe having a portion disposed proximate the heat generating component, such as a gradient coil and/or RF coil. When heat is removed from the component, a working fluid in a relatively hotter end of the heat pipe vaporizes and travels toward a relatively colder end of the heat pipe. The colder end may be operatively coupled to a heat sink for removing the heat from the colder end and increase the overall efficiency of the system. The heat pipe may be disposed along a horizontal, a vertical direction and/or along a diagonal of the heat generating component.Type: GrantFiled: November 14, 2007Date of Patent: October 12, 2010Assignee: General Electric CompanyInventors: Tunc Icoz, Mehmet Arik, Yogen Vishwas Utturkar, Bruce Courtney Campbell Amm
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Publication number: 20090167306Abstract: A folded gradient terminal board end connector includes a multi-layer terminal connection board having a plurality of connection paths and vias configured to provide intercrossing between a plurality of folded gradient coils and further to provide symmetry between the plurality of folded gradient coils without spatial interference between folded portions of the plurality of folded gradient coils to optimize the folded gradient coil efficiency.Type: ApplicationFiled: December 29, 2007Publication date: July 2, 2009Applicant: GENERAL ELECTRIC COMPANYInventors: Wensen Wang, Bruce Courtney Campbell Amm, Weijun Yin, Yogen Vishwas Utturkar, Tunc Icoz
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Patent number: 7548064Abstract: A folded gradient terminal board end connector includes a multi-layer terminal connection board having a plurality of connection paths and vias configured to provide intercrossing between a plurality of folded gradient coils and further to provide symmetry between the plurality of folded gradient coils without spatial interference between folded portions of the plurality of folded gradient coils to optimize the folded gradient coil efficiency.Type: GrantFiled: December 29, 2007Date of Patent: June 16, 2009Assignee: General Electric CompanyInventors: Wensen Wang, Bruce Courtney Campbell Amm, Weijun Yin, Yogen Vishwas Utturkar, Tunc Icoz
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Publication number: 20090120615Abstract: A thermal management system for cooling a heat generating component of a Magnetic Resonance Imaging (MRI) apparatus includes at least one heat pipe having a portion disposed proximate the heat generating component, such as a gradient coil and/or RF coil. When heat is removed from the component, a working fluid in a relatively hotter end of the heat pipe vaporizes and travels toward a relatively colder end of the heat pipe. The colder end may be operatively coupled to a heat sink for removing the heat from the colder end and increase the overall efficiency of the system. The heat pipe may be disposed along a horizontal, a vertical direction and/or along a diagonal of the heat generating component.Type: ApplicationFiled: November 14, 2007Publication date: May 14, 2009Applicant: GENERAL ELECTRIC COMPANYInventors: Tunc Icoz, Mehmet Arik, Yogen Vishwas Utturkar, Bruce Courtney Campbell Amm
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Patent number: 7488946Abstract: An x-ray detector is provided for use in imaging systems. The x-ray detector includes a detector subsystem configured to output electrical signals in response to reception of x-rays. The x-ray detector also includes a single-piece protective enclosure having at least one opening to receive the detector subsystem.Type: GrantFiled: October 3, 2006Date of Patent: February 10, 2009Assignee: General Electric CompanyInventors: William Andrew Hennessy, Bruce Courtney Campbell Amm, Donald Earl Castleberry, Shashishekara Sitharamarao Talya, Virendra Vilas Gaikwad, Shailendra Pramod Joshi, Habib Vafi, Michael John Utschig