Patents Assigned to Sylvia Warner
  • Heart-related parameters monitoring apparatus
    Patent number: 4834107
    Abstract: A non-invasive method, and an apparatus, for determining heart-related parameters in patients. The method and apparatus determine pulse pressure, time constant of the arterial system, systolic and diastolic pressure, peripheral resistance, cardiac output and mean arterial blood pressure.
    Type: Grant
    Filed: October 8, 1987
    Date of Patent: May 30, 1989
    Assignees: Sylvia Warner, Priyamvada Sankar
    Inventor: Glenfield Warner
  • Method and apparatus for measurement of heart-related parameters
    Patent number: 4418700
    Abstract: The invention relates to a method and apparatus for determining the magnitude of heart-related parameters in a patient. In accordance with the invention, blood volume variation of a peripheral part of the body of a patient, which variation is cyclic in nature, is detected to provide a signal representative of the blood volume. The maximum amplitude, minimum amplitude of the signal at maximum slope, the time interval between the maximum and minimum amplitudes and the instantaneous cyclic repetition rate (period) of the signal are measured, and the parameters are calculated in accordance with appropriate formulae.
    Type: Grant
    Filed: March 11, 1981
    Date of Patent: December 6, 1983
    Assignees: Sylvia Warner, Thiagas S. Sankar
    Inventor: Glenfield Warner
  • Heart-related parameters monitoring apparatus
    Patent number: RE33834
    Abstract: A non-invasive method, and an apparatus, for determining heart-related parameters in patients. The method and apparatus determine pulse pressure, time constant of the arterial system, systolic and diastolic pressure, peripheral resistance, cardiac output and mean arterial blood pressure.
    Type: Grant
    Filed: July 20, 1990
    Date of Patent: March 3, 1992
    Assignees: Sylvia Warner, Priyamvada Sankar
    Inventor: Glenfield Warner