Patents by Inventor Fransiscus J. Schmidt

Fransiscus J. Schmidt 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).

  • Processes and devices for continuously monitoring levels of analyte
    Patent number: 5615671
    Abstract: In a process and devices or continuously measuring the concentration of an analyte in tissue. The tissue is provided with a hollow fiber having a pore size between the size of the analyte and the size of macromolecules, hollow fiber is perfused with a solution compatible with the tissue, and that solution is supplied from the hollow fiber through a reactor for the analyte. The reactor has a second hollow fiber having a pore size between the size of the analyte and the size of macromolecules, and the second hollow fiber is located in a container which contains macromolecular reactants for detecting the analyte and a signal producing system coupled therewith. The perfusion fluid is fed from the reactor to an eliminator for the analyte, whereby at least 95% of the remaining analyte is removed from the perfusion fluid and the perfusion fluid is reintroduced into said first hollow fiber.
    Type: Grant
    Filed: July 11, 1996
    Date of Patent: April 1, 1997
    Assignees: Siemens-Elema AB, Rijksuniversiteit te Groningen
    Inventors: Adelbert J. M. Schoonen, Fransiscus J. Schmidt, Klaas-Jan C. Wientjes