Patents by Inventor Mark Alan Heldreth

Mark Alan Heldreth 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 controlling a surgical burr in the performance of an orthopaedic procedure
    Patent number: 7022123
    Abstract: A method of operating a surgical burr during performance of an orthopaedic procedure includes monitoring the position of the surgical burr during the procedure and adjusting operation of the surgical burr based thereon. An orthopaedic surgical system is also disclosed.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: April 4, 2006
    Assignee: DePuy Products, Inc.
    Inventor: Mark Alan Heldreth
  • Method and apparatus for controlling a surgical burr in the performance of an orthopaedic procedure
    Publication number: 20040097948
    Abstract: A method of operating a surgical burr during performance of an orthopaedic procedure includes monitoring the position of the surgical burr during the procedure and adjusting operation of the surgical burr based thereon. An orthopaedic surgical system is also disclosed.
    Type: Application
    Filed: September 24, 2003
    Publication date: May 20, 2004
    Inventor: Mark Alan Heldreth
  • Evaluating the fit of an orthopaedic implant
    Patent number: 5989261
    Abstract: The invention provides means for evaluating the fit of a knee replacement prosthesis on a resected tibial surface. A provisional instrument for this purpose includes a positioning tray having a peripheral profile corresponding to that of the tibial platform of the prosthesis, the tray having an upper surface and an under surface which is substantially flat and free from projections and the tray having a plurality of holes for receiving pins for temporarily attaching the positioning tray in a desired position on the resected tibial surface. Also disclosed is a jig for guiding, drilling and broaching operations, the jig having an aperture which is shaped to guide the broach.
    Type: Grant
    Filed: July 29, 1997
    Date of Patent: November 23, 1999
    Assignee: Zimmer, Ltd.
    Inventors: Peter Stanley Walker, John Nevil Insall, Jonathan Blamey, Michael Wadcock, Mark Alan Heldreth, Shawn Elliott McGinley, Steven A. Zawadzki