Patents by Inventor Tina Kapur

Tina Kapur 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).

  • Publication number: 20150338477
    Abstract: A composite system for use in conjunction with an MR-imaging procedure. One composite system includes a fully-metallic filament, such as a needle or guide-wire, equipped with flat MR RF-receiver microcoil disposed such that a normal to the coil's plane is substantially transverse to the filament's axis. The microcoil is electrically connected to external device to register change of position and orientation of the tip during the navigation of the filament. Alternative composite system includes a filament made from different materials. The very tip includes diamagnetic and non-metallic tube tightly fit around geometrically-modified portion of the main body and carries at least one microcoil electrically connected to external device to register change of position and orientation of the tip during the filament navigation. Data representing co-registration of the position and/or orientation of filament is fed back to the system to improve navigation accuracy and precision.
    Type: Application
    Filed: January 8, 2014
    Publication date: November 26, 2015
    Inventors: Ehud J. Schmidt, Wei Wang, Tina Kapur, Charles L. Dumoulin, Robert A. Cormack, Akila Viswanathan
  • Patent number: 8126224
    Abstract: The present invention relates to a method and system apparatus for instrument tracking on a series of images. The method relates to performing instrument tracking on an image. The method comprises collecting at least one image and computing at least one of a position and orientation of at least one instrument for the at least one collected image. The method further relates to displaying at least one, some or all of the collected and computed data either separately or in any combination.
    Type: Grant
    Filed: February 3, 2004
    Date of Patent: February 28, 2012
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventors: Joel F. Zuhars, Daniel E. Groszmann, Tina Kapur
  • Patent number: 7369695
    Abstract: The present invention relates to a method and apparatus for reducing metal artifact in image reconstruction. In at least one embodiment, the method for reducing metal artifacts in image reconstruction comprises collecting at least one uncalibrated image (an X-ray or fluoroscopic image for example) and calibrating the at least one uncalibrated image, forming at least one calibrated fluoroscopic image. A patient to transmitter transform is computed using at least the at least one calibrated image. A reconstructed volume is formed using at least a patient to transmitter transform. At least two of the at least one calibrated fluoroscopic image, the patient to transmitter transform and the reconstructed volume may be combined, forming at least one display image. This image may then be displayed, using a display device for example.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: May 6, 2008
    Assignee: General Electric Company
    Inventors: Hubert A. Zettel, Daniel E. Groszmann, Tina Kapur
  • Publication number: 20060039591
    Abstract: The present invention relates to a method and apparatus for reducing metal artifact in image reconstruction. In at least one embodiment, the method for reducing metal artifacts in image reconstruction comprises collecting at least one uncalibrated image (an X-ray or fluoroscopic image for example) and calibrating the at least one uncalibrated image, forming at least one calibrated fluoroscopic image. A patient to transmitter transform is computed using at least the at least one calibrated image. A reconstructed volume is formed using at least a patient to transmitter transform. At least two of the at least one calibrated fluoroscopic image, the patient to transmitter transform and the reconstructed volume may be combined, forming at least one display image. This image may then be displayed, using a display device for example.
    Type: Application
    Filed: August 20, 2004
    Publication date: February 23, 2006
    Inventors: Hubert Zettel, Daniel Groszmann, Tina Kapur
  • Publication number: 20050169510
    Abstract: The present invention relates to a method and system apparatus for instrument tracking on a series of images. The method relates to performing instrument tracking on an image. The method comprises collecting at least one image and computing at least one of a position and orientation of at least one instrument for the at least one collected image. The method further relates to displaying at least one, some or all of the collected and computed data either separately or in any combination.
    Type: Application
    Filed: February 3, 2004
    Publication date: August 4, 2005
    Inventors: Joel Zuhars, Daniel Groszmann, Tina Kapur
  • Patent number: 6856827
    Abstract: A system for surgical imaging and display of tissue structures of a patient, including a display and an image processor for displaying such images in coordination with a tool image to facilitate manipulation of the tool during the surgical procedure. The system is configured for use with a fluoroscope such that at least one image in the display is derived from the fluoroscope at the time of surgery. A fixture is affixed to an imaging side of the fluoroscope for providing patterns of an of array markers that are imaged in each fluoroscope image. A tracking assembly having a plurality of tracking elements is operative to determine positions of said fixture and the patient. One of the tracking elements is secured against motion with respect to the fixture so that determining a position of the tracking element determines a position of all the markers in a single measurement.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: February 15, 2005
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventors: Teresa Seeley, Faith Lin, Tina Kapur, Gene Gregerson
  • Patent number: 6856826
    Abstract: A method for surgical imaging and display including (i.) positioning a defined set of markers disposed in a pattern so as to be imaged in each pose or view of an imaging assembly, the set of markers being fixed in pre-determined positions in a rigid carrier, (ii.) securing a first tracking element against motion with respect to the rigid carrier so that determining a position of the first tracking element in a single measurement determines positions of all the markers of the set, and (iii.) identifying images of at least a subset of the markers in a first view.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: February 15, 2005
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventors: Teresa Seeley, Faith Lin, Tina Kapur, Gene Gregerson
  • Publication number: 20030130576
    Abstract: A system employs a tracker and a set of substantially non-shadowing point markers, arranged in a fixed pattern or set in a fluoroscope calibration fixture that is imaged in each shot. The fixture is preferably affixed to the image detector of the fluoroscope, and tracking elements secured with respect to the fixture and at least one of a tool and the patient, provide respective position data irrespective of movement. A marker detection module identifies markers imaged in each shot, and a processor applies the known marker positions to model the projection geometry, e.g., camera axis and focus, for the shot and, together with the tracked tool position, form a corrected tool navigation image. In one embodiment an inverting distortion correction converts the tracked or actual location of the tool and displays the tool on the fluoroscopic image to guide the surgeon in tool navigation.
    Type: Application
    Filed: November 15, 2002
    Publication date: July 10, 2003
    Inventors: Teresa Seeley, Faith Lin, Tina Kapur, Gene Gregerson
  • Publication number: 20030088179
    Abstract: A system employs a tracker and a set of substantially non-shadowing point markers, arranged in a fixed pattern or set in a fluoroscope calibration fixture that is imaged in each shot. The fixture is preferably affixed to the image detector of the fluoroscope, and tracking elements secured with respect to the fixture and at least one of a tool and the patient, provide respective position data irrespective of movement. A marker detection module identifies markers imaged in each shot, and a processor applies the known marker positions to model the projection geometry, e.g., camera axis and focus, for the shot and, together with the tracked tool position, form a corrected tool navigation image. In one embodiment an inverting distortion correction converts the tracked or actual location of the tool and displays the tool on the fluoroscopic image to guide the surgeon in tool navigation.
    Type: Application
    Filed: December 2, 2002
    Publication date: May 8, 2003
    Inventors: Teresa Seeley, Faith Lin, Tina Kapur, Gene Gregerson
  • Patent number: 6490475
    Abstract: A system employs a tracker and a set of substantially non-shadowing point markers, arranged in a fixed pattern or set in a fluoroscope calibration fixture that is imaged in each shot. The fixture is preferably affixed to the image detector of the fluoroscope, and tracking elements secured with respect to the fixture and at least one of a tool and the patient, provide respective position data irrespective of movement. A marker detection module identifies markers imaged in each shot, and a processor applies the known marker positions to model the projection geometry, e.g., camera axis and focus, for the shot and, together with the tracked tool position, form a corrected tool navigation image. In one embodiment an inverting distortion correction converts the tracked or actual location of the tool and displays the tool on the fluoroscopic image to guide the surgeon in tool navigation.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: December 3, 2002
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventors: Teresa Seeley, Faith Lin, Tina Kapur, Gene Gregerson
  • Patent number: 6484049
    Abstract: A system employs a tracker and a set of substantially non-shadowing point markers, arranged in a fixed pattern or set in a fluoroscope calibration fixture that is imaged in each shot. The fixture is preferably affixed to the image detector of the fluoroscope, and tracking elements secured with respect to the fixture and at least one of a tool and the patient, provide respective position data irrespective of movement. A marker detection module identifies markers imaged in each shot, and a processor applies the known marker positions to model the projection geometry, e.g., camera axis and focus, for the shot and, together with the tracked tool position, form a corrected tool navigation image. In one embodiment an inverting distortion correction converts the tracked or actual location of the tool and displays the tool on the fluoroscopic image to guide the surgeon in tool navigation.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: November 19, 2002
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventors: Teresa Seeley, Faith Lin, Tina Kapur, Gene Gregerson