Patents by Inventor Joshua J. Tofield

Joshua J. Tofield 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).

  • Method and apparatus for securing a prosthesis to the human body
    Patent number: 4753656
    Abstract: The method comprises inserting a securing device with skin graft wrapped therearound through an incision in the skin to a subcutaneous region of the body. The skin graft has its epidermis facing the securing device and is joined to the body surface skin at the incision to form a pouch for containing the securing device. The prosthesis is then attached to the securing device. The device comprises a base member for subcutaneous disposition and a post on the base extending to the surface of the body skin. An opening through the post and the base member facilitates attaching the prosthesis to the securing device and permits the pouch to be irrigated by forcing fluid through the opening. Channels in the surface of the base of the device disburse irrigation fluid throughout the pocket for effective cleansing of the pouch. Ridges formed on the post and the base inhibit contractural growth of the pouch from sealing against the securing device and preventing irrigation.
    Type: Grant
    Filed: May 15, 1987
    Date of Patent: June 28, 1988
    Inventors: Joshua J. Tofield, Boyd R. Burkhardt, Timothy S. Martin, Byron G. Economidy
  • Method and apparatus for securing a prosthesis to the human body
    Patent number: 4676802
    Abstract: The method comprises inserting a securing device with skin graft wrapped therearound through an incision in the skin to a subcutaneous region of the body. The skin graft has its epidermis facing the securing device and is joined to the body surface skin at the incision to form a pouch for containing the securing device. The prosthesis is then attached to the securing device. The device comprises a base member for subcutaneous disposition and a post on the base extending to the surface of the body skin. An opening through the post and the base member facilitates attaching the prosthesis to the securing device and permits the pouch to be irrigated by forcing fluid through the opening. Channels in the surface of the base of the device disburse irrigation fluid throughout the pocket for effective cleansing of the pouch. Ridges formed on the post and the base inhibit contractural growth of the pouch from sealing against the securing device and preventing irrigation.
    Type: Grant
    Filed: January 21, 1986
    Date of Patent: June 30, 1987
    Assignee: J. Tofield, et al.
    Inventors: Joshua J. Tofield, Boyd R. Burkhardt, Timothy S. Martin, Byron G. Economidy