Patents by Inventor Joerg Dreibholz

Joerg Dreibholz 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: 7429865
    Abstract: A method and a corresponding system for error checking an electrochemical sensor having at least two electrodes and a liquid measuring medium applied thereto are disclosed. The method involves determining a first admittance between a first set of electrodes of the sensor; determining a second admittance between a second set of electrodes of the sensor; determining a value using the first admittance and the second admittance; and displaying an error message if the value is out of a predetermined tolerance.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: September 30, 2008
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Joerg Dreibholz, Sylvia Saecker, Volker Unkrig
  • Publication number: 20080121789
    Abstract: Systems and method for optically imaging objects and in particular optical patterns or codes onto a detection device by a pinhole aperture are described. According to an embodiment of the invention these systems have optical attenuation elements between the illumination devices and the object which substantially compensate the system-inherent imaging detects caused by the pinhole aperture and in particular the system-inherent peripheral decrease in brightness of an image of the object formed by a pinhole aperture on the detection device. According to an embodiment of the invention, the optical attenuation elements change the illumination intensity of the object in such a manner that the central areas of the object are illuminated at a lower light intensity than its peripheral areas. As a result of the subsequent imaging of the object by a pinhole aperture, the central areas of the object are imaged onto the detection device at a higher light intensity than the peripheral areas of the object.
    Type: Application
    Filed: July 3, 2007
    Publication date: May 29, 2008
    Applicant: Roche Diagnostics Operations, Inc.
    Inventors: Manfred Augstein, Joerg Dreibholz, Dieter Falk, Uwe Kass, Heinz Macho
  • Publication number: 20070202007
    Abstract: The invention concerns a test element analytical system for the analytical examination of a sample, especially a body fluid, comprising at least one test element with one or more measuring zones and contact areas located on the test element, in particular electrodes or conductor paths, the sample to be examined being brought into the measuring zone to carry out an analysis in order to determine a characteristic measured quantity for the analysis, and an evaluation instrument with a test element holder for positioning the test element in a measuring position and a measuring device for measuring the characteristic change, the test element holder containing contact elements with contact areas which enable an electrical contact between the contact areas of the test element and the contact areas of the test element holder, characterized in that one of these contact areas is provided with an electrically conductive hard material surface.
    Type: Application
    Filed: August 21, 2006
    Publication date: August 30, 2007
    Applicant: Roche Diagnostics Operations, Inc.
    Inventors: Manfred Augstein, Joerg Dreibholz, Stefan Riebel
  • Publication number: 20070102292
    Abstract: A method and a corresponding system for error checking an electrochemical sensor having at least two electrodes and a liquid measuring medium applied thereto are disclosed. The method comprises determining a first admittance between a first set of electrodes of the sensor; determining a second admittance between a second set of electrodes of the sensor; determining a value using the first admittance and the second admittance; and displaying an error message if the value is out of a predetermined tolerance.
    Type: Application
    Filed: October 4, 2006
    Publication date: May 10, 2007
    Applicant: Roche Diagnostics Operations, Inc.
    Inventors: Joerg Dreibholz, Sylvia Saecker, Volker Unkrig
  • Publication number: 20050123441
    Abstract: The invention concerns a reagent system for the so-called on-board control of analytical elements, in particular test strips, containing an organic N-oxide or a nitroso compound. The invention also concerns analytical elements containing a reagent system for a detection reaction and a reagent system for an on-board control. Furthermore, the invention concerns a method for checking analytical elements in which a reagent system for an on-board control is examined optically or electrochemically with the aid of a measuring instrument for changes which could indicate a stress of the analytical element.
    Type: Application
    Filed: October 12, 2004
    Publication date: June 9, 2005
    Inventors: Volker Unkrig, Christine Nortmeyer, Carina Horn, Michael Marquant, Mihail-Onoriu Lungu, Joachim Hoenes, Holger Kotzan, Joerg Dreibholz