Patents by Inventor Derek A. Seeber

Derek A. Seeber 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).

  • Cable routing and potential equalizing ring for magnetic resonance imaging coils
    Patent number: 6781379
    Abstract: A cable routing system for an MRI coil having multiple loops and multiple signal cables provides a non-resonant conductive ring surrounding the loops and grounded to define a low electrical field region along which the signal cables may be routed for reduced interference.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: August 24, 2004
    Assignee: IGC-Medical Advances, Inc.
    Inventors: Velibor Pikelja, Derek Seeber, Jovan Jevtic, Ashok Menon, William T. Johnson, Jr.
  • Retracting MRI head coil
    Patent number: 6762606
    Abstract: A head coil for magnetic resonance imaging may be shortened longitudinally to provide for better access by a patient. Extension of the coil may be performed after the positioning of the patient's head significantly simplifying patient positioning with respect to the coil. A portion of a conductor support sliding over the patient's head removable to allow endotracheal tubes or the like to remain undisturbed.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: July 13, 2004
    Assignee: IGC-Medical Advances, Inc.
    Inventors: Jovan Jevtic, Ashok Menon, Derek Seeber, Matthew J. Mercier, Steven M. Zwolinski, Matthias Gyori
  • Decoupling circuit for magnetic resonance imaging local coils
    Patent number: 6747452
    Abstract: A decoupling circuit for decoupling an local coil during the application of an RF excitation signal in a magnetic resonance imaging system includes a passive switching circuit for switching an inductor in parallel with a capacitive circuit in the local coil, and a discharge circuit for discharging residual currents from the circuit, therefore allowing for rapid coupling and decoupling of the local coil.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: June 8, 2004
    Assignee: IGC Medical Advanced, Inc.
    Inventors: Jovan Jectic, Ashok Menon, Derek Seeber
  • Modular local coil set for magnetic resonance imaging
    Publication number: 20040106336
    Abstract: A modular lower coil provides for a head, a vascular and, a thoracic/lumbar element that may interfit or be separated to provide individual imaging of these areas or a combined imaging region stretching from the head to the lower spine. A switch box allows individual ones of these elements to be connected to the MRI machine if necessary because of a limitation of inputs to the machine and provides for decoupling currents to minimize interference between the coil elements when one element is being used.
    Type: Application
    Filed: November 25, 2003
    Publication date: June 3, 2004
    Inventors: Ashok Menon, Derek Seeber, Jovan Jevtic
  • DECOUPLING CIRCUIT FOR MAGNETIC RESONANCE IMAGING LOCAL COILS
    Publication number: 20040100260
    Abstract: A decoupling circuit for decoupling an local coil during the application of an RF excitation signal in a magnetic resonance imaging system includes a passive switching circuit for switching an inductor in parallel with a capacitive circuit in the local coil, and a discharge circuit for discharging residual currents from the circuit, therefore allowing for rapid coupling and decoupling of the local coil.
    Type: Application
    Filed: November 22, 2002
    Publication date: May 27, 2004
    Inventors: Jovan Jevtic, Ashok Menon, Derek Seeber
  • RETRACTING MRI HEAD COIL
    Publication number: 20040100346
    Abstract: A head coil for magnetic resonance imaging may be shortened longitudinally to provide for better access by a patient. Extension of the coil may be performed after the positioning of the patient's head significantly simplifying patient positioning with respect to the coil. A portion of a conductor support sliding over the patient's head may be removable to allow endotracheal tubes or the like to remain undisturbed.
    Type: Application
    Filed: November 22, 2002
    Publication date: May 27, 2004
    Inventors: Jovan Jevtic, Ashok Menon, Derek Seeber, Matthew J. Mercier, Steven M. Zwolinski, Matthias Gyori
  • Phased array magnetic resonance imaging coil with improved spin localization
    Publication number: 20040100262
    Abstract: A phased array coil providing spatial discrimination for simultaneous spin acquisition maximizes transverse and longitudinal acceleration through the use of loops having boundaries tipped to the longitudinal axis.
    Type: Application
    Filed: November 22, 2002
    Publication date: May 27, 2004
    Inventor: Derek Seeber
  • Loop MRI coil with improved homogeneity
    Patent number: 6727701
    Abstract: A local coil for magnetic resonance imaging employs a loop divided by a shunting conductor which reduces sensitivity and field strength at one end of the loop to provide improved homogeneity for different coil configurations.
    Type: Grant
    Filed: March 5, 2003
    Date of Patent: April 27, 2004
    Assignee: IGC Medical Advances, Inc.
    Inventors: Jovan Jevtic, Derek Seeber, Ashok Menon
  • Manufacturing technique for local MRI coil using metal foil construction
    Publication number: 20040070397
    Abstract: A local coil for magnetic resonance imaging equipment employs mirror conductors on opposite sides of an insulating substrate to produce lower resistance, higher Q and improved signal-to-noise ratio for a given foil thickness.
    Type: Application
    Filed: October 9, 2002
    Publication date: April 15, 2004
    Inventors: Derek Seeber, Velibor Pikelja
  • Cable routing and potential equalizing ring for magnetic resonance imaging coils.
    Publication number: 20040036473
    Abstract: A cable routing system for an MRI coil having multiple loops and multiple signal cables provides a non-resonant conductive ring surrounding the loops and grounded to define a low electrical field region along which the signal cables may be routed for reduced interference.
    Type: Application
    Filed: August 22, 2002
    Publication date: February 26, 2004
    Inventors: Velibor Pikelja, Derek Seeber, Jovan Jevtic, Ashok Menon, Willam T. Johnson,
  • Tuning system for floating radio frequency trap
    Patent number: 6664465
    Abstract: A floating shield current trap provides two resonance loops formed of split concentric tubular conductors joined radially at their axial ends. Adjustment of the separation of these loops provides a change in coupling between the loops effecting a simplified tuning of the resonance of the trap for different expected frequencies of interfering shield current.
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: December 16, 2003
    Assignee: IGC Medical Advances, Inc.
    Inventor: Derek Seeber
  • TUNING SYSTEM FOR FLOATING RADIO FREQUENCY TRAP
    Publication number: 20030209354
    Abstract: A floating shield current trap provides two resonance loops formed of split concentric tubular conductors joined radially at their axial ends. Adjustment of the separation of these loops provides a change in coupling between the loops effecting a simplified tuning of the resonance of the trap for different expected frequencies of interfering shield current.
    Type: Application
    Filed: October 9, 2002
    Publication date: November 13, 2003
    Inventor: Derek Seeber
  • Floating radio frequency trap for shield currents
    Patent number: 6605775
    Abstract: A floating shield current trap provides first and second concentric tubular conductors electrically connected to provide a resonance-induced high impedance of current flow in a path consisting of the inner and outer conductors and their junctions thereby suppressing coupled current flow on a shield of a conductor contained within the first inner tubular conductor.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: August 12, 2003
    Assignee: IGC-Medical Advances, Inc.
    Inventors: Derek Seeber, Ashok Menon, Jovan Jevtic