Patents by Inventor Dennis P. Colleran

Dennis P. Colleran 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).

  • Quick-release tibial alignment handle
    Patent number: 5733290
    Abstract: A quick-release alignment handle system is provided including a quick release alignment handle with an attachable, releasable locking mechanism for attaching the handle to a tibial tray trial component of a surgical instrument system for implanting artificial knees.
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: March 31, 1998
    Assignee: Johnson & Johnson Professional, Inc.
    Inventors: Diane F. McCue, Ernest Quintanilha, Sarah Anne Wildgoose, Dennis P. Colleran, Timothy M. Flynn
  • Knee joint prosthesis
    Patent number: 5609643
    Abstract: A knee joint prosthesis includes a femoral component, a tibial plateau and a tibial bearing member. The design and geometry of the articulation surfaces of the condylar elements of the femoral component and tibial bearing member is such that contact area between the articulation surfaces is maximized both in perfect alignment and in malalignment conditions. Moreover, contact stresses placed upon the articulation surfaces in perfect alignment and in malalignment are reduced. High contact area and low contact stress on the articulation surfaces can be maintained even while matching knee prosthesis components of different sizes.
    Type: Grant
    Filed: March 13, 1995
    Date of Patent: March 11, 1997
    Assignee: Johnson & Johnson Professional, Inc.
    Inventors: Dennis P. Colleran, Robert E. Sommerich, Jorge A. Ochoa