Patents by Inventor Peter F. Frey

Peter F. Frey 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).

  • Cannula needle for catheter
    Patent number: 4377165
    Abstract: A cannula needle for a catheter is provided from flat metal sheet blank stock. A groove of controlled depth is formed on the metal sheet which is then rolled to produce a hollow barrel having a slit parallel to the longitudinal axis; the barrel is then cut into individual needles. Gripping wings are then welded to each needle on either side of the slit in a separate operation.In use, when the wings are flexed, the needle will easily split in half along the groove. This enables the cannula to be separated from the catheter.
    Type: Grant
    Filed: June 8, 1981
    Date of Patent: March 22, 1983
    Assignees: Luther Medical Products, Inc., Cobra, Inc.
    Inventors: Ronald B. Luther, Peter F. Frey, Marshall F. Sparks