Patents by Inventor Robert P. Bruce

Robert P. Bruce 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).

  • Flexible inflow/outflow cannula
    Patent number: 5800409
    Abstract: A flexible plastic cannula for use in directing liquid to or from the suprapatellar pouch during arthroscopic knee surgery. The cannula is comprised of a flexible elongated stem, a valve housing and an attachment means, all molded in a single piece of high density polyethylene. The stem is tapered along its length so that the end nearest the valve housing is relatively rigid, while the distal end is narrower and more flexible. The flexibility of the cannula stem is sufficient to allow it to bend with the knee during the arthroscopic surgery.
    Type: Grant
    Filed: January 26, 1996
    Date of Patent: September 1, 1998
    Assignee: Arthroscopic Assistants, Inc.
    Inventor: Robert P. Bruce
  • Flexible inflow/outflow cannula
    Patent number: 5527276
    Abstract: A flexible plastic cannula for use in directing liquid to or from the suprapatellar pouch during arthroscopic knee surgery. The cannula is comprised of a flexible elongated stem, a valve housing and an attachment means, all molded in a single piece of high density polyethylene. The stem is tapered along its length so that the end nearest the valve housing is relatively rigid, while the distal end is narrower and more flexible. The flexibility of the cannula stem is sufficient to allow it to bend with the knee during the arthroscopic surgery.
    Type: Grant
    Filed: May 13, 1994
    Date of Patent: June 18, 1996
    Assignee: Arthroscopic Assistants, Inc.
    Inventor: Robert P. Bruce