Patents by Inventor Raymond C. Franzel

Raymond C. Franzel 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).

  • Catheter introducer having toroidal valve
    Patent number: 5782817
    Abstract: A catheter introducer defines a tubular sheath with a housing on one end thereof, with the housing enclosing a fluid-filled, elastic-walled toroidal member defining a central aperture aligned with the tubular sheath axis. The central aperture is normally closed, being retained in the closed position by an elastic sleeve carried by the toroidal member. The central aperture is penetrable by a catheter in sealing manner as the catheter is advanced through the catheter sheath introducer.
    Type: Grant
    Filed: November 6, 1995
    Date of Patent: July 21, 1998
    Assignee: Cordis Corporation
    Inventors: Raymond C. Franzel, Roberta D. Goode