Patents by Inventor Thomas Polanyi

Thomas Polanyi 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).

  • Patent number: 5458128
    Abstract: The method of noninvasively measuring concentration of a dye in a circulatory system includes measuring an optical density of an arterial blood-dye mixture in an artery as a function of time at a wavelength .GAMMA..sub.1 and at another different wavelength .GAMMA..sub.2 ; calculating ratios of optical density at the wavelength .GAMMA..sub.1 to that at wavelength .GAMMA..sub.2 of arterial blood in the artery at a time before a predetermined initial time and of the arterial blood-dye mixture at at least one time t after the predetermined initial time; injecting a dye absorbing electromagnetic radiation at at least one of the wavelengths into the circulatory system at the predetermined initial time, t=0, to form the arterial blood-dye mixture; measuring a hemoglobin concentration in a blood sample from the living organism; and calculating a concentration C(d,t) of the dye in the arterial blood-dye mixture as a function of time, t, from the hemoglobin concentration, Hb; from extinction coefficients, .epsilon..
    Type: Grant
    Filed: June 17, 1994
    Date of Patent: October 17, 1995
    Inventors: Michael Polanyi, Thomas Polanyi