Patents by Inventor Richard L. Shaffner

Richard L. Shaffner 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).

  • Patent number: 6245111
    Abstract: The present invention relates to a prosthetic device for placement in an implant area of the body. The prosthetic device comprises an elongated stem portion, a neck portion, and a head portion. Each of the stem, neck, and head portions comprise a material impregnated with an antibiotic agent such that, when the prosthetic device is inserted into the implant area in place of a weight-bearing prosthesis, the antibiotic agent can leach out of the material to fight infection in the implant area. As an added benefit, the structure of the prosthetic device maintains adequate joint spacing in opposition to contraction of the muscles and tendons of the patient over a period of time so that a weight-bearing prosthesis can again be implanted into the implant area after the infection has been overcome.
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: June 12, 2001
    Inventor: Richard L. Shaffner
  • Patent number: 5980573
    Abstract: A temporary non-weight bearing prosthesis to be placed inside an implant area of a joint replacement patient. The prosthesis is impregnated with an antibiotic agent which leaches out to the surrounding tissue to fight infection in the implant area. While the infection is being overcome, the prosthesis maintains the joint spacing of the implant area against the contractive force of the surrounding muscles and tendons by fully occupying the space in which a primary prosthesis had once been.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: November 9, 1999
    Inventor: Richard L. Shaffner
  • Patent number: 4566208
    Abstract: A toe protector has two guard rails (12) that are to be incorporated into opposite sides of a foot cast or mounted to the sides of an orthopedic shoe. The toe protector also has a pair of front rails (14) whose ends are configured to be releasibly mounted by press fits to adjacent ends (21, 22) of the guard rails that jutt forward of the toes of a foot located within the cast or shoe.
    Type: Grant
    Filed: May 24, 1984
    Date of Patent: January 28, 1986
    Inventor: Richard L. Shaffner
  • Patent number: D269458
    Type: Grant
    Filed: December 1, 1980
    Date of Patent: June 21, 1983
    Inventor: Richard L. Shaffner
  • Patent number: D285500
    Type: Grant
    Filed: May 14, 1984
    Date of Patent: September 9, 1986
    Inventor: Richard L. Shaffner