Patents by Inventor Werner P. Schulz

Werner P. Schulz 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: 3964468
    Abstract: Three improvements to a prior art bioptome are disclosed. The prior art bioptome comprises: tongs, an elongated flexible spiral wire catheter attached to the working end of one of the legs of the tongs; an elongated wire that is rotationally jointed to the working end of the other leg of the tongs and extends axially through the catheter; seals between the inner surface of the catheter and the wire at both ends of the catheter; a pair of hinged jaws one of which is fixed and attached to the end of the catheter and the other of which is movable and is attached to the end of the wire; and a heat-shrunk plastic sleeve about the catheter that sealls the radial exterior surface of the catheter and prevents the catheter from substantial axial expansion. The basic improvement is a heat-shrunk plastic inner sleeve about a segment of the catheter that together with the main sleeve forms a double sleeve about said segment, the inner sleeve having an end that is bias-cut.
    Type: Grant
    Filed: May 30, 1975
    Date of Patent: June 22, 1976
    Assignee: The Board of Trustees of Leland Stanford Junior University
    Inventor: Werner P. Schulz