Patents by Inventor Mark R. Rohrscheib

Mark R. Rohrscheib 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).

  • Determination of pH including hemoglobin correction
    Patent number: 6944487
    Abstract: Methods and apparatuses of determining the pH of a sample. A method can comprise determining an infrared spectrum of the sample, and determining the hemoglobin concentration of the sample. The hemoglobin concentration and the infrared spectrum can then be used to determine the pH of the sample. In some embodiments, the hemoglobin concentration can be used to select an model relating infrared spectra to pH that is applicable at the determined hemoglobin concentration. In other embodiments, a model relating hemoglobin concentration and infrared spectra to pH can be used. An apparatus according to the present invention can comprise an illumination system, adapted to supply radiation to a sample; a collection system, adapted to collect radiation expressed from the sample responsive to the incident radiation; and an analysis system, adapted to relate information about the incident radiation, the expressed radiation, and the hemoglobin concentration of the sample to pH.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: September 13, 2005
    Assignee: InLight Solutions, Inc.
    Inventors: John D. Maynard, Shonn P. Hendee, Mark R. Rohrscheib, David Nunez, M. Kathleen Alam, James E. Franke, Gabor J. Kemeny
  • Determination of pH including hemoglobin correction
    Publication number: 20040181131
    Abstract: Methods and apparatuses of determining the pH of a sample. A method can comprise determining an infrared spectrum of the sample, and determining the hemoglobin concentration of the sample. The hemoglobin concentration and the infrared spectrum can then be used to determine the pH of the sample. In some embodiments, the hemoglobin concentration can be used to select an model relating infrared spectra to pH that is applicable at the determined hemoglobin concentration. In other embodiments, a model relating hemoglobin concentration and infrared spectra to pH can be used. An apparatus according to the present invention can comprise an illumination system, adapted to supply radiation to a sample; a collection system, adapted to collect radiation expressed from the sample responsive to the incident radiation; and an analysis system, adapted to relate information about the incident radiation, the expressed radiation, and the hemoglobin concentration of the sample to pH.
    Type: Application
    Filed: February 25, 2004
    Publication date: September 16, 2004
    Inventors: John D. Maynard, Shonn P. Hendee, Mark R. Rohrscheib, David Nunez, M. Kathleen Alam, James E. Franke, Gabor J. Kemeny