Patents by Inventor Maria A. Franceschini

Maria A. Franceschini 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).

  • Publication number: 20190261869
    Abstract: The present disclosure provides systems and methods for multi-distance, multi-wavelength diffuse correlation spectroscopy (MD-MW DCS). The systems and methods can include two, three, or more different wavelengths and two, three, or more different source-detector distances. The dynamics of a target medium can be determined using detected signals at the different wavelengths and different source-detector distances.
    Type: Application
    Filed: November 14, 2017
    Publication date: August 29, 2019
    Inventors: Maria A. Franceschini, Parisa Farzam, Davide Tamborini, David Boas
  • Publication number: 20170027447
    Abstract: An optical probe comprising a light source providing a light that is directed along a first axis; a diffusive element positioned proximate to the light source to receive the light and to diffuse the light as it exits the diffusive element; and a directional optical element directing the light exiting the diffusive element along at least one of the first axis and a second axis generally perpendicular to the first axis to project the light out of the optical probe and onto a subject.
    Type: Application
    Filed: April 17, 2015
    Publication date: February 2, 2017
    Inventors: F Jason Sutin, Pei-Yi Lin, Maria A. Franceschini
  • Patent number: 5497769
    Abstract: The quantitative determination of various materials in highly scattering media such as living tissue may be determined in an external, photometric manner by the use of a plurality of light sources positioned at differing distances from a sensor. The light from said sources is amplitude modulated, and, in accordance with conventional frequency domain fluorometry or phosphorimetry techniques, the gain of the sensor is modulated at a frequency different from the frequency of the light modulation. Data may be acquired from each of the light sources at differing distances at a frequency which is the difference between the two frequencies described above. From these sets of data from each individual light source, curves may be constructed, and the slopes used to quantitatively determine the amount of certain materials present, for example oxyhemoglobin and deoxyhemoglobin in living tissue.
    Type: Grant
    Filed: December 16, 1993
    Date of Patent: March 12, 1996
    Assignees: I.S.S. (USA) Inc., The Board of Trustees of the University of Illinois
    Inventors: Enrico Gratton, Sergio Fantini, Maria A. Franceschini, William Mantulin, Beniamino Barbieri
  • Patent number: 5492118
    Abstract: The relative concentration of a material such as glucose in a turbid medium such as living tissue may determining the scattering coefficient of the light that has passed through the turbid medium; and comparing the scattering coefficient with a previous scattering coefficient determined with respect to the turbid medium.
    Type: Grant
    Filed: June 3, 1994
    Date of Patent: February 20, 1996
    Assignee: Board of Trustees of the University of Illinois
    Inventors: Enrico Gratton, John Maier, Maria A. Franceschini, Sergio Fantini, Scott A. Walker