Patents Examined by Sharon J Shaw
  • Detection of stroke events using diffuse optical tomagraphy
    Patent number: 6577884
    Abstract: The invention relates to a method of using diffuse optical tomography and oxygen in a stroke patient, or a patient suspected of having a stroke, to detect ischemic events or bleeds in the brain.
    Type: Grant
    Filed: June 19, 2000
    Date of Patent: June 10, 2003
    Assignee: The General Hospital Corporation
    Inventor: David Alan Boas
  • Three dimensional mapping
    Patent number: 6516212
    Abstract: Methods and apparatus are provided for locating the position, preferably in three dimensions, of a sensor by generating magnetic fields which are detected at the sensor. The magnetic fields are generated from a plurality of locations and, in one embodiment of the invention, enable both the orientation and location of a single coils sensor to be determined. The present invention thus finds application in many areas where the use of prior art sensors comprising two or more mutually perpendicular coils is inappropriate.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: February 4, 2003
    Assignee: British Telecommunications public limited company
    Inventors: John Stuart Bladen, Alan Patrick Anderson