Search Patents
  • MRI system
    Patent number: 7343191
    Abstract: In one example, an illumination system is provided in an MRI system including an open MRI assembly comprising a pole covered by a canopy. The MRI system is within a shielded room. A light source is provided outside of the shielded room, at least one light projector is connected to the canopy, and optical fibers couple the light source to the light projector. The light projector is preferably flexible. The light projector or projectors increase the illumination in the imaging volume, facilitating medical procedures conducted on a subject within the imaging volume.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: March 11, 2008
    Assignee: Fonar Corporation
    Inventors: Raymond V. Damadian, John D. Kersten
  • Stand-up vertical field MRI apparatus
    Patent number: 7196519
    Abstract: Apparatus and method for magnetic resonance imaging. In an aspect, the present invention is an apparatus for magnetic resonance imaging that includes a short bore magnet that is oriented such that, when energized, a static magnetic field is created in a substantially vertical direction. In another aspect, the present invention is a method for performing magnetic resonance imaging using a short bore magnet that is oriented such that, when energized, a static magnetic field is created in a substantially vertical direction.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: March 27, 2007
    Assignee: Fonar Corporation
    Inventor: Raymond V. Damadian
  • Method, apparatus, and facility for magnetic resonance imaging dual scanning
    Publication number: 20040138553
    Abstract: A method, apparatus and facility for magnetic resonance imaging (MRI). The method comprises selectively directing patients to either a first magnetic resonance scanner or a second magnetic resonance scanner, so that the patient's entire body, including the torso, extremities and head can be scanned, while at the same time not requiring either scanner to have the capability to perform a full functional body scan. In accordance with another aspect of the present invention, an apparatus for magnetic resonance imaging is disclosed wherein the apparatus occupies or requires clearance space of approximately nine feet.
    Type: Application
    Filed: November 21, 2003
    Publication date: July 15, 2004
    Applicant: Fonar Corporation
    Inventor: Raymond V. Damadian
  • Method and apparatus for magnetic resonance imaging
    Patent number: 6346816
    Abstract: Magnet assembly for use in medical magnetic resonance imaging includes means for increasing flux generation in the gap region to provide the capability of scanning smaller volume regions of a patient at increased levels of scanning resolution. The means for increasing flux generation is mechanical or electromagnetic, is coupled to each of the polar regions and maintains the gap region sufficiently large and unobstructed to allow for access to the patient by several persons during scanning. Tapered outer walls of the polar region proximate the gap region further enhance accessibility to the patient during scanning.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: February 12, 2002
    Assignee: Fonar Corporation
    Inventors: Raymond V. Damadian, Gordon Danby, James J. Persoons
  • Method for conducting magnetic resonance imaging
    Patent number: 6922055
    Abstract: Magnet assembly for use in medical magnetic resonance imaging includes means for increasing flux generation in the gap region to provide the capability of scanning smaller volume regions of a patient at increased levels of scanning resolution. The means for increasing flux generation is mechanical or electromagnetic, is coupled to each of the polar regions and maintains the gap region sufficiently large and unobstructed to allow for access to the patient by several persons during scanning. Tapered outer walls of the polar region proximate the gap region further enhance accessibility to the patient during scanning.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: July 26, 2005
    Assignee: Fonar Corporation
    Inventors: Raymond V. Damadian, Gordon Danby, James J. Persoons
  • Method and apparatus for magnetic resonance imaging
    Patent number: 7268553
    Abstract: Magnet assembly for use in medical magnetic resonance imaging includes means for increasing flux generation in the gap region to provide the capability of scanning smaller volume regions of a patient at increased levels of scanning resolution. The means for increasing flux generation is mechanical or electromagnetic, is coupled to each of the polar regions and maintains the gap region sufficiently large and unobstructed to allow for access to the patient by several persons during scanning. Tapered outer walls of the polar region proximate the gap region further enhance accessibility to the patient during scanning.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: September 11, 2007
    Assignee: Fonar Corporation
    Inventors: Raymond V. Damadian, Gordon Danby, James J. Persoons
  • Method and apparatus for magnetic resonance imaging
    Patent number: 6975117
    Abstract: Magnet assembly for use in medical magnetic resonance imaging includes means for increasing flux generation in the gap region to provide the capability of scanning smaller volume regions of a patient at increased levels of scanning resolution. The means for increasing flux generation is mechanical or electromagnetic, is coupled to each of the polar regions and maintains the gap region sufficiently large and unobstructed to allow for access to the patient by several persons during scanning. Tapered outer walls of the polar region proximate the gap region further enhance accessibility to the patient during scanning.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: December 13, 2005
    Assignee: Fonar Corporation
    Inventors: Raymond V. Damadian, Gordon Danby, James J. Persoons
  • Magnetic resonance imaging apparatus
    Patent number: 8384387
    Abstract: A magnetic resonance imaging configuration to straighten and otherwise homogenize the field lines in the imaging portion, creating improved image quality. Through use of calibrated corrective coils, magnetic field lines can be manipulated to improve uniformity and image quality. Additionally, when the apparatus is composed of non-ferromagnetic materials, field strengths can be increased to overcome limitations of Iron-based systems such as by use of superconductivity. A patient positioning apparatus allowing multi-positioning is also disclosed.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: February 26, 2013
    Assignee: Fonar Corporation
    Inventors: Raymond V. Damadian, Gordon T. Danby, Hank Hsieh, John W. Jackson, Mark Gelbien, William H. Wahl, Charles A. Green
  • Monitoring and treatment of multiple sclerosis
    Patent number: 10149633
    Abstract: The present invention relates to a method for monitoring the presence of, or the susceptibility to multiple sclerosis. The method may include obtaining measurements of the cerebrospinal fluid (CSF) flow in a patient using magnetic resonance imaging, and deriving one or more values representing the CSF flow in the patient. These values may be used to determine if the patient has abnormal CSF flow, as such abnormal CSF flow may be indicative of presence of, or susceptibility to multiple sclerosis. The present invention also discloses that magnetic resonance images may be obtained on patients in various positions, including the upright position.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: December 11, 2018
    Assignee: Fonar Corporation
    Inventors: Raymond V. Damadian, Ki-Cheung Chu
  • Monitoring and treatment of multiple sclerosis
    Patent number: 9649047
    Abstract: The present invention relates to a method for monitoring the presence of, or the susceptibility to multiple sclerosis. The method may include obtaining measurements of the cerebrospinal fluid (CSF) flow in a patient using magnetic resonance imaging, and deriving one or more values representing the CSF flow in the patient. These values may be used to determine if the patient has abnormal CSF flow, as such abnormal CSF flow may be indicative of presence of, or susceptibility to multiple sclerosis. The present invention also discloses that magnetic resonance images may be obtained on patients in various positions, including the upright position.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: May 16, 2017
    Assignee: Fonar Corporation
    Inventors: Raymond V. Damadian, Ki-Cheung Chu
  • Magnetic resonance imaging system
    Patent number: 9864027
    Abstract: A magnetic resonance imaging configuration and methodology to straighten and otherwise homogenize the field lines in the imaging portion, creating improved image quality. Through use of calibrated corrective coils, magnetic field lines can be manipulated to improve uniformity and image quality. Additionally, when the apparatus is composed of non-ferromagnetic materials, field strengths can be increased to overcome limitations of Iron-based systems such as by use of superconductivity. A patient positioning apparatus and methodology allows multi-positioning of a patient within the calibrated and more uniform magnetic field lines.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: January 9, 2018
    Inventors: Raymond V. Damadian, Gordon T. Danby, Hank Hsieh, John W. Jackson, Mark Gelbien, William H. Wahl, Charles A. Green
  • Magnetic resonance imaging apparatus
    Patent number: 8952698
    Abstract: A magnetic resonance imaging configuration to straighten and otherwise homogenize the field lines in the imaging portion, creating improved image quality. Through use of calibrated corrective coils, magnetic field lines can be manipulated to improve uniformity and image quality. Additionally, when the apparatus is composed of non-ferromagnetic materials, field strengths can be increased to overcome limitations of Iron-based systems such as by use of superconductivity. A patient positioning apparatus allows multi-positioning of a patient within the magnetic field lines.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: February 10, 2015
    Assignee: Fonar Corporation
    Inventors: Raymond V. Damadian, Gordon T. Danby, Hank Hsieh, John W. Jackson, Mark Gelbien, William H. Wahl, Charles A. Green
  • Positional magnetic resonance imaging
    Patent number: 7123008
    Abstract: A patient is examined by magnetic resonance imaging in different positions relative to gravity by moving the patient relative to the magnet, and the acquired data is compared to show differences in anatomy due to differences in patient position. Individual data elements or groups of plural data elements representing particular locations in one set of image data can be compared with data elements associated with the same locations in another set of image data, to yield a set of comparison image data elements. The comparison data set can be used to detect difference caused by differences in position of the patient.
    Type: Grant
    Filed: April 21, 2003
    Date of Patent: October 17, 2006
    Assignee: Fonar Corporation
    Inventors: Raymond V. Damadian, Robert Wolf
  • Magnetic resonance imaging apparatus
    Patent number: 9057769
    Abstract: A magnetic resonance imaging configuration to straighten and otherwise homogenize the field lines in the imaging portion, creating improved image quality. Through use of calibrated corrective coils, magnetic field lines can be manipulated to improve uniformity and image quality. Additionally, when the apparatus is composed of non-ferromagnetic materials, field strengths can be increased to overcome limitations of Iron-based systems such as by use of superconductivity. A patient positioning apparatus allows multi-positioning of a patient within the calibrated and more uniform magnetic field lines.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: June 16, 2015
    Assignee: FONAR Corporation
    Inventors: Raymond V. Damadian, Gordon T. Danby, Hank Hsieh, John W. Jackson, Mark Gelbien, William H. Wahl, Charles A. Green
  • Multipositional MRI for kinematic studies of movable joints
    Patent number: 5772595
    Abstract: Methods and apparatus for kinematic studies of the movable joints of the body using magnetic resonance imaging. The apparatus controls the position of movable joints at a multiplicity of predetermined positions, enabling the controlled movement of the joints to each of the predetermined positions. It also includes a device which automatically sequences the movement of a movable joint to each position among the multiplicity of predetermined positions, and the acquisition of magnetic resonance imaging data at each of these positions. These features enhance the clinical utility of kinematic studies of movable joint functionality by magnetic resonance imaging.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: June 30, 1998
    Assignee: Fonar Corporation
    Inventors: Jan Votruba, Rajendra Shenoy, Raymond V. Damadian
  • Magnetic resonance imaging apparatus
    Patent number: 8797034
    Abstract: A magnetic resonance imaging configuration to straighten and otherwise homogenize the field lines in the imaging portion, creating improved image quality. Through use of calibrated corrective coils, magnetic field lines can be manipulated to improve uniformity and image quality. Additionally, when the apparatus is composed of non-ferromagnetic materials, field strengths can be increased to overcome limitations of Iron-based systems such as by use of superconductivity. A patient positioning apparatus allows multi-positioning of a patient within the calibrated and more uniform magnetic field lines.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: August 5, 2014
    Assignee: FONAR Corporation
    Inventors: Raymond V. Damadian, Gordon T. Danby, Hank Hsieh, John W. Jackson, Mark Gelbien, William H. Wahl, Charles A. Green
  • Magnetic resonance imaging antennas with spiral coils and imaging methods employing the same
    Patent number: 5050605
    Abstract: An antenna structure for magnetic resonance imaging includes a plurality of spiral wound, generally planar coils spaced axially from one another. The plural coils may be mounted on a rigid frame in the desired relative positions and the subject may be inserted in the space defined by the frame. Alternatively, the individual coils can be separately supported on the subject, as by mounting the coils to the subject. Desirably, a part of the subject's body extends through central apertures in one or more of the coils.
    Type: Grant
    Filed: April 12, 1989
    Date of Patent: September 24, 1991
    Assignee: Fonar Corporation
    Inventors: Gregory Eydelman, Anthony Giambalvo, Raymond V. Damadian
  • Multipositional MRI for kinematic studies of movable joints
    Patent number: 5810006
    Abstract: Methods and apparatus for kinematic studies of the movable joints of the body using magnetic resonance imaging. The apparatus controls the position of movable joints at a multiplicity of predetermined positions, enabling the controlled movement of the joints to each of the predetermined positions. It also includes a device which automatically sequences the movement of a movable joint to each position among the multiplicity of predetermined positions, and the acquisition of magnetic resonance imaging data at each of these positions. These features enhance the clinical utility of kinematic studies of movable joint functionality by magnetic resonance imaging.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: September 22, 1998
    Assignee: Fonar Corporation
    Inventors: Jan Votruba, Rajendra Shenoy, Raymond V. Damadian
  • Positional magnetic resonance imaging
    Patent number: 7375521
    Abstract: A patient is examined by magnetic resonance imaging in different positions relative to gravity by moving the patient relative to the magnet, and the acquired data is compared to show differences in anatomy due to differences in patient position. Individual data elements or groups of plural data elements representing particular locations in one set of image data can be compared with data elements associated with the same locations in another set of image data, to yield a set of comparison image data elements. The comparison data set can be used to detect difference caused by differences in position of the patient.
    Type: Grant
    Filed: July 31, 2006
    Date of Patent: May 20, 2008
    Assignee: Fonar Corporation
    Inventors: Raymond V. Damadian, Robert Wolf
  • Apparatus and method for nuclear magnetic resonance scanning and mapping
    Patent number: RE32689
    Abstract: An improved apparatus and method for analyzing the chemical and structural composition of a specimen including whole-body specimens which may include, for example, living mammals, utilizing nuclear magnetic resonance (NMR) techniques. A magnetic field space necessary to obtain an NMR signal characteristic of the chemical structure of the specimen is focused to provide a resonance domain of selectable size, which may then be moved in a pattern with respect to the specimen to scan the specimen.
    Type: Grant
    Filed: October 25, 1985
    Date of Patent: June 7, 1988
    Inventor: Raymond V. Damadian
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