Patents by Inventor Christine Kassner

Christine Kassner 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: 7677729
    Abstract: The object of an apparatus and a method for the analysis of retinal vessels is to improve the reproducibility of individually determined artery-to-vein ratios and to reduce the measurement uncertainty in determining the artery-to-vein ratio in order to substantially increase the individual validity of the determined values for vessel diagnosis. At least two images are recorded successively as an image sequence in a predetermined timed sequence adapted to the vasomotricity of the vessels and are evaluated such that a mean artery-to-vein ratio is formed from artery-to-vein ratios that are determined on the basis of the at least two images.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: March 16, 2010
    Assignee: Imedos GmbH
    Inventors: Walthard Vilser, Christine Kassner
  • Patent number: 7284860
    Abstract: A universal ophthalmic examination device and an ophthalmic examination method have the object of combining in an inexpensive apparatus in a simple manner the device-related requirements for image generation, measurement and functional imaging for carrying out visual stimulation and highly time-resolved and highly spatially resolved image documentation using continuous illumination and flash mode and the requirements for measurements in the infrared spectral region and visible spectral region with a time regime that can be freely selected to a great extent.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: October 23, 2007
    Assignee: Imedos GmbH
    Inventors: Walthard Vilser, Bernd-Ullrich Seifert, Christine Kassner
  • Publication number: 20070244396
    Abstract: The object of an apparatus and a method for the analysis of retinal vessels is to improve the reproducibility of individually determined artery-to-vein ratios and to reduce the measurement uncertainty in determining the artery-to-vein ratio in order to substantially increase the individual validity of the determined values for vessel diagnosis. At least two images are recorded successively as an image sequence in a predetermined timed sequence adapted to the vasomotricity of the vessels and are evaluated such that a mean artery-to-vein ratio is formed from artery-to-vein ratios that are determined on the basis of the at least two images.
    Type: Application
    Filed: April 12, 2007
    Publication date: October 18, 2007
    Inventors: WALTHARD VILSER, Christine KASSNER
  • Publication number: 20050122475
    Abstract: A universal ophthalmic examination device and an ophthalmic examination method have the object of combining in an inexpensive apparatus in a simple manner the device-related requirements for image generation, measurement and functional imaging for carrying out visual stimulation and highly time-resolved and highly spatially resolved image documentation using continuous illumination and flash mode and the requirements for measurements in the infrared spectral region and visible spectral region with a time regime that can be freely selected to a great extent.
    Type: Application
    Filed: December 3, 2004
    Publication date: June 9, 2005
    Inventors: Walthard Vilser, Bernd-Ullrich Seifert, Christine Kassner