Patents by Inventor John Kansky

John Kansky 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).

  • Ultrasonic plethysmograph
    Patent number: 5289820
    Abstract: Quadrature phase signals (I and Q) from a pulsed Doppler medical instrument are analyzed to detect phase changes of consecutive echoes from tissue at a depth of interest. Such phase changes are analyzed to determine tissue displacement. Relative displacements at different depths are examined to detect tissue expansion and contraction. The area of the uterus of a pregnant female can be scanned and the frequency of tissue displacement or expansion and contraction examined to determine pulsations due to blood supplied by the fetal heart and/or pulsations due to blood supplied by the maternal heart. Conventional M-mode or B-mode images can be colorized differently for different frequencies of tissue displacement.
    Type: Grant
    Filed: November 24, 1992
    Date of Patent: March 1, 1994
    Assignee: The Board of Regents of the University of Washington
    Inventors: Kirk W. Beach, David J. Phillips, John Kansky
  • Ultrasonic plethysmograph
    Patent number: 5183046
    Abstract: Quadrature phase signals (I and Q) from a pulsed Doppler medical instrument are analyzed to detect phase changes of consecutive echoes from tissue at a depth of interest. Such phase changes are analyzed to determine tissue displacement. Relative displacements at different depths are examined to detect tissue expansion and contraction. The area of the uterus of a pregnant female can be scanned and the frequency of tissue displacement or expansion and contraction examined to determine pulsations due to blood supplied by the fetal heart and/or pulsations due to blood supplied by the maternal heart. Conventional M-mode or B-mode images can be colorized differently for different frequencies of tissue displacement.
    Type: Grant
    Filed: November 15, 1991
    Date of Patent: February 2, 1993
    Assignee: Board of Regents of the University of Washington
    Inventors: Kirk W. Beach, David J. Phillips, John Kansky
  • Ultrasonic plethysmograph
    Patent number: 5088498
    Abstract: Quadrature phase signals (I and Q) from a pulsed Doppler medical instrument are analyzed to detect phase changes of consecutive echoes from tissue at a depth of interest. Such phase changes are analyzed to determine tissue displacement. Relative displacements at different depths are examined to detect tissue expansion and contraction. The area of the uterus of a pregnant female can be scanned and the frequency of tissue displacement or expansion and contraction examined to determine pulsations due to blood supplied by the fetal heart and/or pulsations due to blood supplied by the maternal heart. Conventional M-mode or B-mode images can be colorized differently for different frequencies of tissue displacement.
    Type: Grant
    Filed: January 18, 1991
    Date of Patent: February 18, 1992
    Assignee: The Board of Regents of the University of Washington
    Inventors: Kirk W. Beach, David J. Phillips, John Kansky