Patents by Inventor Steven L. van der Meulen

Steven L. van der Meulen 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).

  • Instrument for disassembling a bipolar hip prosthesis
    Patent number: 5405404
    Abstract: An apparatus for disassembling a head and acetabular component of a bipolar orthopedic hip prosthesis. The head includes a female taper configured for engaging a corresponding male taper of a femoral component of a hip prosthesis. The acetabular component includes a cavity in which the head is elastically constrained. The apparatus includes a rod having a male taper at one end thereof sized and configured to be received in taper locking engagement in the female taper of the head of the bipolar prosthesis. The rod has external threads that engage internal threads of a sleeve surrounding the rod. The sleeve includes a thrust surface at one end that engages the acetabular component as the sleeve is rotated relative to the rod. The sleeve causes the acetabular component to be pressed off of the head while the head remains taper locked to the rod. Continued rotation of the sleeve causes the head to be pressed off of the taper of the rod.
    Type: Grant
    Filed: October 7, 1993
    Date of Patent: April 11, 1995
    Assignee: Intermedics Orthopedics, Inc.
    Inventors: Kenneth J. Gardner, Adriana de la Barcena, Steven L. van der Meulen, Donald W. Dye, Amber E. Okoye, Mark L. Arlitt