Patents by Inventor P. Robert Uldall

P. Robert Uldall 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).

  • Surgical instrument for prosthetic graft removal
    Patent number: 4821718
    Abstract: A surgical instrument is provided for removal of prosthetic vein grafts from surrounding tissues. The instrument comprises a cylindrical knife having a sharp circular front edge, a concentric annular guide and an elongate arm with an offset handle at its end. The graft is drawn through the interior of the instrument, and the configuration of the exterior of the instrument is such that the surrounding tissue is retracted from the graft, so that the tissue peels from the graft at the point at which the sharp circular front edge of the cylindrical knife is brought to bear.
    Type: Grant
    Filed: October 19, 1987
    Date of Patent: April 18, 1989
    Inventor: P. Robert Uldall