Search Patents
  • MRI apparatus
    Patent number: 6335623
    Abstract: A magnet for magnetic resonance imaging has an interior working space within the magnet frame sufficient to accommodate a physician and a patient. Because the physician is positioned inside the magnet frame, the physician has unimpeded access to the patient. Elements of the magnet frame desirably encompass a room, and the magnet frame may be concealed from view of a patient within the room. Preferred embodiments facilitate MRI imaged guided surgery and other procedures performed while the patient is being imaged, and minimize claustrophobia experienced by the patient. Also provided is a magnet having field coils disposed about the of pole portions of the magnet.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: January 1, 2002
    Assignee: Fonar Corporation
    Inventors: Jevan Damadian, John Linardos, Gordon T. Danby, Raymond V. Damadian
  • MRI apparatus
    Patent number: 6369571
    Abstract: A magnet for magnetic resonance imaging has an interior working space within the magnet frame sufficient to accommodate a physician and a patient. Because the physician is positioned inside the magnet frame, the physician has unimpeded access to the patient. Elements of the magnet frame desirably encompass a room, and the magnet frame may be concealed from view of a patient within the room. Preferred embodiments facilitate MRI imaged guided surgery and other procedures performed while the patient is being imaged, and minimize claustrophobia experienced by the patient. Also provided is a magnet having field coils disposed about the of pole portions of the magnet. A diagnostic facility for high volume MRI use is also disclosed.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: April 9, 2002
    Assignee: Fonar Corporation
    Inventors: Jevan Damadian, John Linardos, Gordon T. Danby, Raymond V. Damadian
  • MRI apparatus
    Patent number: 6496007
    Abstract: A magnet for magnetic resonance imaging has an interior working space within the magnet frame sufficient to accommodate a physician and a patient. Because the physician is positioned inside the magnet frame, the physician has unimpeded access to the patient. Elements of the magnet frame desirably encompass a room, and the magnet frame may be concealed from view of a patient within the room. Preferred embodiments facilitate MRI imaged guided surgery and other procedures performed while the patient is being imaged, and minimize claustrophobia experienced by the patient. Also provided is a magnet having field coils disposed about the of pole portions of the magnet. A diagnostic facility for high volume MRI use is also disclosed.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: December 17, 2002
    Assignee: Fonar Corporation
    Inventors: Jevan Damadian, John Linardos, Gordon T. Danby, Raymond V. Damadian
  • MRI apparatus
    Patent number: 6445186
    Abstract: A magnet for magnetic resonance imaging has an interior working space within the magnet frame sufficient to accommodate a physician and a patient. Because the physician is positioned inside the magnet frame, the physician has unimpeded access to the patient. Elements of the magnet frame desirably encompass a room, and the magnet frame may be concealed from view of a patient within the room. Preferred embodiments facilitate MRI imaged guided surgery and other procedures performed while the patient is being imaged, and minimize claustrophobia experienced by the patient. Also provided is a magnet having field coils disposed about the of pole portions of the magnet. A diagnostic facility for high volume MRI use is also disclosed.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: September 3, 2002
    Assignee: Fonar Corporation
    Inventors: Jevan Damadian, John Linardos, Gordon T. Danby, Raymond V. Damadian
  • MRI apparatus
    Patent number: 6469508
    Abstract: A method of fabricating a coil for a magnetic resonance imaging magnet is disclosed. The method includes providing a plurality of windings each having an axis. A conductor is arranged in a plurality of turns extending in a spiral between the inner end and the outer end of the windings. The turns of each outward winding and inward winding are arranged so that a point moving along the turns in a first direction of rotation about the axis of the outward winding moves from the inner end towards the outer end, and the outer end towards the inner end, respectively. The method further includes superposing the spiral windings one above the other so that the windings are substantially coaxial with one another and electrically connecting the windings in series with one another.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: October 22, 2002
    Assignee: Fonar Corporation
    Inventors: Jevan Damadian, John Linardos, Gordon T. Danby, Raymond V. Damadian
  • Method for fabricating a ferromagnetic plate
    Patent number: 6848170
    Abstract: A magnet for magnetic resonance imaging has an interior working space within the magnet frame sufficient to accommodate a physician and a patient. Because the physician is positioned inside the magnet frame, the physician has unimpeded access to the patient. Elements of the magnet frame desirably encompass a room, and the magnet frame may be concealed from view of a patient within the room. Preferred embodiments facilitate MRI imaged guided surgery and other procedures performed while the patient is being imaged, and minimize claustrophobia experienced by the patient. Also provided is a magnet having field coils disposed about the of pole portions of the magnet. A diagnostic facility for high volume MRI use is also disclosed.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: February 1, 2005
    Assignee: Fonar Corporation
    Inventors: Jevan Damadian, John Linardos, Gordon T. Danby, Raymond V. Damadian
  • MRI magnet with enhanced patient entry and positioning
    Patent number: 6404202
    Abstract: A magnetic resonance imaging (MRI) magnet in combination with a mobile patient-positioning device, including a patient support and a method of using same for positioning patients for MRI scanning. The patient support is rotatable through a range of orientations. The patient disposed on the patient-positioning device in a predetermined orientation can then be moved horizontally into and out of a patient-receiving space in the MRI magnet at the predetermined angle or orientation. A preferred embodiment includes a plurality of patient-positioning devices in which a series of patients can be placed in a ready state while one patient is within the patient-receiving space. As an alternative embodiment, the patient may be moved vertically into position for MRI scanning by way of an elevator which is actuatable from the floor below the patient receiving space. This elevator also may be used in combination with the patient-positioning device.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: June 11, 2002
    Assignee: Fonar Corporation
    Inventors: Timothy Damadian, Gordon Danby, Raymond V. Damadian, Hank Hsieh, James J. Persoons
  • Stand-up MRI apparatus
    Patent number: 6677753
    Abstract: A magnet for magnetic resonance imaging has a box-like ferromagnetic frame with vertical side walls, poles connected to the side walls and top and bottom walls forming flux return structures between the side walls. The frame has open front and rear sides defining patient entry openings, and has top and bottom openings in the top and bottom walls. A patient can be positioned in a vertical, horizontal or intermediate orientation within the frame. When the patient is in the vertical orientation, the patient can be raised or lowered so that parts of the patient's body protrude into the top or bottom openings, so as to align any part of the patient's body with the poles. The apparatus allows imaging of any part of the anatomy while the patient is in a standing position.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: January 13, 2004
    Assignee: Fonar Corporation
    Inventors: Gordon T. Danby, Jevan Damadian, John Linardos, Raymond V. Damadian, Hank Hsieh, William H. Wahl
  • MRI magnet with enhanced patient entry and positioning
    Patent number: 6456075
    Abstract: A magnetic resonance imaging (MRI) magnet in combination with a mobile patient-positioning device, including a patient support and a method of using same for positioning patients for MRI scanning. The patient support is rotatable through a range of orientations. The patient disposed on the patient-positioning device in a predetermined orientation can then be moved horizontally into and out of a patient-receiving space in the MRI magnet at the predetermined angle or orientation. A preferred embodiment includes a plurality of patient-positioning devices in which a series of patients can be placed in a ready state while one patient is within the patient-receiving space. As an alternative embodiment, the patient may be moved vertically into position for MRI scanning by way of an elevator which is actuatable from the floor below the patient receiving space. This elevator also may be used in combination with the patient-positioning device.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: September 24, 2002
    Assignee: Fornar Corporation
    Inventors: Timothy Damadian, Gordon Danby, Raymond V. Damadian, Hank Hsieh, James J. Persoons
  • Magnetic resonance imaging system, apparatus and associated methods
    Publication number: 20090256573
    Abstract: In one aspect, a magnet comprising a pair of pole supports spaced apart from one another and extending in a generally horizontal direction. The magnet includes a pair of flux return members extending between the pole supports so as to define a frame, each of the flux return members including a first columnar section that extends parallel to the polar axis and a second columnar section that extends perpendicular to the polar axis and projects towards the pole. In another aspect, a magnetic resonance imaging system comprises a ferromagnetic frame that is operative to support an upper pole member and a lower pole member along a vertical polar axis such that a gap is defined between the upper and lower pole members and an access floor that is isolated from the ferromagnetic frame and pole members for providing access to the gap.
    Type: Application
    Filed: June 15, 2009
    Publication date: October 15, 2009
    Applicant: Fonar Corporation
    Inventors: Raymond V. Damadian, William H. Wahl, Hank Hsieh, Gordon T. Danby, John W. Jackson, Jevan Damadian, Luciano B. Bonanni, Mark Gelbien, Keith Saboe
  • Magnetic resonance imaging system, apparatus and associated methods
    Patent number: 7812607
    Abstract: In one aspect, a magnet comprising a pair of pole supports spaced apart from one another and extending in a generally horizontal direction. The magnet includes a pair of flux return members extending between the pole supports so as to define a frame, each of the flux return members including a first columnar section that extends parallel to the polar axis and a second columnar section that extends perpendicular to the polar axis and projects towards the pole. In another aspect, a magnetic resonance imaging system comprises a ferromagnetic frame that is operative to support an upper pole member and a lower pole member along a vertical polar axis such that a gap is defined between the upper and lower pole members and an access floor that is isolated from the ferromagnetic frame and pole members for providing access to the gap.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: October 12, 2010
    Assignee: Fonar Corporation
    Inventors: Raymond V. Damadian, William H. Wahl, Hank Hsieh, Gordon T. Danby, John W. Jackson, Jevan Damadian, Luciano B. Bonanni, Mark Gelbien, Keith Saboe
  • Magnetic resonance imaging system, apparatus and associated methods
    Patent number: 7560928
    Abstract: In one aspect, a magnet comprising a pair of pole supports spaced apart from one another and extending in a generally horizontal direction. The magnet includes a pair of flux return members extending between the pole supports so as to define a frame, each of the flux return members including a first columnar section that extends parallel to the polar axis and a second columnar section that extends perpendicular to the polar axis and projects towards the pole. In another aspect, a magnetic resonance imaging system comprises a ferromagnetic frame that is operative to support an upper pole member and a lower pole member along a vertical polar axis such that a gap is defined between the upper and lower pole members and an access floor that is isolated from the ferromagnetic frame and pole members for providing access to the gap.
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: July 14, 2009
    Assignee: Fonar Corporation
    Inventors: Raymond V. Damadian, William H. Wahl, Hank Hsieh, Gordon T. Danby, John W. Jackson, Jevan Damadian, Luciano B Bonanni, Mark Gelbien, Keith Saboe
  • MRI magnet with enhanced patient entry and positioning
    Patent number: 6414490
    Abstract: A magnetic resonance imaging (MRI) magnet in combination with a mobile patient-positioning device, including a patient support and a method of using same for positioning patients for MRI scanning. The patient support is rotatable through a range of orientations from a horizontal to a vertical position, including being lockable at any oblique angle with respect to the horizontal. The patient disposed on the patient-positioning device in a predetermined orientation can then be moved horizontally into and out of a patient-receiving space in the MRI magnet at the predetermined angle or orientation. A preferred embodiment includes a plurality of patient-positioning devices in which a series of patients can be placed in a ready state while one patient is within the patient-receiving space. As an alternative embodiment, the patient may be moved vertically into position for MRI scanning by way of an elevator which is actuatable from the floor below the patient receiving space.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: July 2, 2002
    Assignee: Fonar Corporation
    Inventors: Timothy Damadian, Gordon Danby, Raymond V. Damadian, Hank Hsieh, James J. Persoons
  • MRI magnet with enhanced patient entry and positioning
    Patent number: 6504371
    Abstract: A magnetic resonance imaging (MRI) magnet in combination with a mobile patient-positioning device, including a patient support and a method of using same for positioning patients for MRI scanning. The patient support is rotatable through a range of orientations from a horizontal to a vertical position, including being lockable at any oblique angle with respect to the horizontal. The patient disposed on the patient-positioning device in a predetermined orientation can then be moved horizontally into and out of a patient-receiving space in the MRI magnet at the predetermined angle or orientation. A preferred embodiment includes a plurality of patient-positioning devices in which a series of patients can be placed in a ready state while one patient is within the patient-receiving space. As an alternative embodiment, the patient may be moved vertically into position for MRI scanning by way of an elevator which is actuatable from the floor below the patient receiving space.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: January 7, 2003
    Assignee: Fonar Corporation
    Inventors: Timothy Damadian, Gordon Danby, Raymond V. Damadian, Hank Hsieh, James J. Persoons
  • Stand-up vertical field MRI apparatus
    Publication number: 20050248347
    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: Application
    Filed: November 30, 2004
    Publication date: November 10, 2005
    Applicant: Fonar Corporation
    Inventor: Raymond Damadian
  • Gastrointestinal magnetic resonance imaging
    Patent number: 5515863
    Abstract: Gastrointestinal MRI using an ingested contrast material. Provision is made for tracking the passage of a bolus of the contrast material through the gastrointestinal tract.
    Type: Grant
    Filed: January 7, 1994
    Date of Patent: May 14, 1996
    Assignee: Fonar Corporation
    Inventor: Raymond V. Damadian
  • Gastrointestinal magnetic resonance imaging
    Patent number: 5694935
    Abstract: Gastrointestinal MRI using an ingested contrast material. Provision is made for tracking the passage of a bolus of the contrast material through the gastrointestinal tract.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: December 9, 1997
    Assignee: Fonar Corporation
    Inventor: Raymond V. Damadian
  • Magnet structure
    Patent number: 6970061
    Abstract: A magnet structure produces a field within a magnet gap. The field is provided at least in part by a pair of permanent magnets that are fixed in place by a frame. The frame fixes a magnet assembly that is adapted to hold the magnetic material composing the permanent magnets, such that the quantity of the magnetic material can be adjusted to suit the particular application. The magnetic material can be provided in the form of discrete magnetic elements, such as magnetic “bricks”. The frame also functions as the flux collector and return. Accordingly, the general geometry of the magnet structure is fixed, and the amount of magnetic material, and therefore the magnetic field strength, is adjustable.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: November 29, 2005
    Assignee: Fonar Corporation
    Inventors: Gordon Danby, John Jackson, Raymond Damadian, William H. Wahl, Anthony Tenore
  • Magnet structure
    Patent number: 7248137
    Abstract: A magnet structure produces a field within a magnet gap. The field is provided at least in part by a pair of permanent magnets that are fixed in place by a frame. The frame fixes a magnet assembly that is adapted to hold the magnetic material composing the permanent magnets, such that the quantity of the magnetic material can be adjusted to suit the particular application. The magnetic material can be provided in the form of discrete magnetic elements, such as magnetic “bricks”. The frame also functions as the flux collector and return. Accordingly, the general geometry of the magnet structure is fixed, and the amount of magnetic material, and therefore the magnetic field strength, is adjustable.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: July 24, 2007
    Assignee: Fonar Corporation
    Inventors: Gordon Danby, John Jackson, Raymond Damadian, William H. Wahl, Anthony Tenore
  • Magnet structure
    Patent number: 7271689
    Abstract: A magnet structure produces a field within a magnet gap. The field is provided at least in part by a pair of permanent magnets that are fixed in place by a frame. The frame fixes a magnet assembly that is adapted to hold the magnetic material composing the permanent magnets, such that the quantity of the magnetic material can be adjusted to suit the particular application. The magnetic material can be provided in the form of discrete magnetic elements, such as magnetic “bricks”. The frame also functions as the flux collector and return. Accordingly, the general geometry of the magnet structure is fixed, and the amount of magnetic material, and therefore the magnetic field strength, is adjustable.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: September 18, 2007
    Assignee: Fonar Corporation
    Inventors: Gordon Danby, John Jackson, Raymond Damadian, William H. Wahl, Anthony Tenore
Narrow Results

Filter by US Classification