Patents by Inventor Greg Denzer

Greg Denzer 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: 8246625
    Abstract: An instrument is provided for reduction of a rod or other elongated member into an implant, such as a bone screw. In one embodiment, such an instrument includes a rod adjusting assembly pivotably attached to an implant holding assembly. The implant holding assembly can be pivotably connected to an implant, and the rod adjusting assembly is operable to move a rod toward or away from the implant holding assembly. In that embodiment, several motions are possible by the instrument so that relatively small or large movements of a rod with respect to an implant may be made.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: August 21, 2012
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Keith E. Miller, Alan Rezach, Greg Denzer, Christopher Shaffrey, Marcel Dvorak, Charles Fisher, Jeff Wang, Ricardo C. Sasso
  • Publication number: 20110054549
    Abstract: An instrument is provided for reduction of a rod or other elongated member into an implant, such as a bone screw. In one embodiment, such an instrument includes a rod adjusting assembly pivotably attached to an implant holding assembly. The implant holding assembly can be pivotably connected to an implant, and the rod adjusting assembly is operable to move a rod toward or away from the implant holding assembly. In that embodiment, several motions are possible by the instrument so that relatively small or large movements of a rod with respect to an implant may be made.
    Type: Application
    Filed: August 24, 2010
    Publication date: March 3, 2011
    Inventors: Keith E. Miller, Alan Rezach, Greg Denzer, Christopher Shaffrey, Marcel Dvorak, Charles Fisher, Jeff Wang, Ricardo C. Sasso
  • Patent number: 7799031
    Abstract: An instrument is provided for reduction of a rod or other elongated member into an implant, such as a bone screw. In one embodiment, such an instrument includes a rod adjusting assembly pivotably attached to an implant holding assembly. The implant holding assembly can be pivotably connected to an implant, and the rod adjusting assembly is operable to move a rod toward or away from the implant holding assembly. In that embodiment, several motions are possible by the instrument so that relatively small or large movements of a rod with respect to an implant may be made.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: September 21, 2010
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Keith E. Miller, Alan Rezach, Greg Denzer, Christopher Shaffrey, Marcel Dvorak, Charles Fisher, Jeff Wang, Ricardo C. Sasso
  • Patent number: 7578822
    Abstract: An apparatus for use in orthopedic distraction or compression is disclosed. In the illustrated embodiments, two arms are provided that are connected by a rod or bar with a mechanism that enables the arms to be brought toward or away from each other. At the end of each arm, an assembly for connecting to a bone implant is provided. The assemblies are pivotable with respect to the arms, and allow some rotational motion between parts of the assembly so as to accommodate different positions of the bone implants. Once the assemblies are appropriately positioned, connected and locked to the bone implants, the mechanism can be operated to move the arms together in compression or apart in distraction.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: August 25, 2009
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Alan Rezach, Douglas N. Baker, Greg Denzer
  • Patent number: 7404818
    Abstract: A side-loading bone anchor is provided, which may be used in cervical, thoracic, lumbar or sacral areas of the spine or other orthopedic locations. In one embodiment, the anchor includes an anchoring portion, a receiving portion, and an internal piece that is rotatable with respect to the receiving portion at least to a degree. The anchoring portion is attached to a bone. A rod or other elongated support member is received in the receiving portion in contact with the internal piece. The rod and internal piece may be rotated for variability substantially in a plane, and a set screw is threaded into the receiving portion to lock the rod within the receiving portion.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: July 29, 2008
    Assignee: Warsaw Orthopedic, Inc.
    Inventors: Keith E. Miller, Greg Denzer
  • Publication number: 20070276379
    Abstract: An instrument is provided for reduction of a rod or other elongated member into an implant, such as a bone screw. In one embodiment, such an instrument includes a rod adjusting assembly pivotably attached to an implant holding assembly. The implant holding assembly can be pivotably connected to an implant, and the rod adjusting assembly is operable to move a rod toward or away from the implant holding assembly. In that embodiment, several motions are possible by the instrument so that relatively small or large movements of a rod with respect to an implant may be made.
    Type: Application
    Filed: February 2, 2007
    Publication date: November 29, 2007
    Inventors: Keith Miller, Alan Rezach, Greg Denzer, Christopher Shaffrey, Marcel Dvorak, Charles Fisher, Jeff Wang, Ricardo Sasso
  • Publication number: 20060247649
    Abstract: An apparatus for use in orthopedic distraction or compression is disclosed. In the illustrated embodiments, two arms are provided that are connected by a rod or bar with a mechanism that enables the arms to be brought toward or away from each other. At the end of each arm, an assembly for connecting to a bone implant is provided. The assemblies are pivotable with respect to the arms, and allow some rotational motion between parts of the assembly so as to accommodate different positions of the bone implants. Once the assemblies are appropriately positioned, connected and locked to the bone implants, the mechanism can be operated to move the arms together in compression or apart in distraction.
    Type: Application
    Filed: April 29, 2005
    Publication date: November 2, 2006
    Inventors: Alan Rezach, Douglas Baker, Greg Denzer
  • Publication number: 20060116687
    Abstract: A side-loading bone anchor is provided, which may be used in cervical, thoracic, lumbar or sacral areas of the spine or other orthopedic locations. In one embodiment, the anchor includes an anchoring portion, a receiving portion, and an internal piece that is rotatable with respect to the receiving portion at least to a degree. The anchoring portion is attached to a bone. A rod or other elongated support member is received in the receiving portion in contact with the internal piece. The rod and internal piece may be rotated for variability substantially in a plane, and a set screw is threaded into the receiving portion to lock the rod within the receiving portion.
    Type: Application
    Filed: November 30, 2004
    Publication date: June 1, 2006
    Inventors: Keith Miller, Greg Denzer