Patents by Inventor Ernst Foerster

Ernst Foerster 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).

  • Apparatus for endoscopic-transpapillary exploration of biliary tract
    Patent number: 4905667
    Abstract: An apparatus where a side-view duodenoscope 2 is provided, a probe catheter is slidable through the side-view duodenoscope 2 and a guide wire is provided for arrangement in the side-view duodenoscope 2 and the probe catheter. The objective is to ensure reliable, systematic and reproducible representation of the gall bladder lumen by endoscopic-retrograde means. This is achieved in that a guide catheter is slidable over the guide wire while a probe wire 12 is slidable through the guide catheter into the gall bladder luman 20. The probe wire 12 permits a small endoscope or an irrigation catheter to be passed into the gall bladder lumen.
    Type: Grant
    Filed: December 1, 1988
    Date of Patent: March 6, 1990
    Inventors: Ernst Foerster, Wolfram Domschke