Patents by Inventor Donald E. Anselm

Donald E. Anselm 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).

  • Anterior cervical plate and fixation system
    Patent number: 6626907
    Abstract: An anterior cervical plate is disclosed, along with threaded fasteners for securing the plate to vertebrae or other osseous material. The cervical plate has several pockets or apertures, preferably at least four, to receive a corresponding number of the fasteners. The pockets have spherical surfaces, and the fasteners have heads with similarly sized spherical surfaces, which when engaged permit each of the fasteners to be oriented at a variety of projection angles with respect to the plate. In connection with each pocket, the cervical plate incorporates a fastener retaining feature. The feature can take the form of a cantilevered tab or a beam supported at its opposite ends, in each case plastically deformable between an open position for admitting the fastener and a closed position for preventing retraction.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: September 30, 2003
    Assignee: Alphatec Manufacturing, Inc.
    Inventors: Christopher M. Campbell, Donald E. Anselm, Jason D. Blain, Joel P. Bales, Dan L. Pastrick, George A. Ramirez, Rick B. Delamarter, Leonard J. Tokish, Jr.
  • Anterior cervical plate and fixation system
    Publication number: 20010041894
    Abstract: An anterior cervical plate is disclosed, along with threaded fasteners for securing the plate to vertebrae or other osseous material. The cervical plate has several pockets or apertures, preferably at least four, to receive a corresponding number of the fasteners. The pockets have spherical surfaces, and the fasteners have heads with similarly sized spherical surfaces, which when engaged permit each of the fasteners to be oriented at a variety of projection angles with respect to the plate. In connection with each pocket, the cervical plate incorporates a fastener retaining feature. The feature can take the form of a cantilevered tab or a beam supported at its opposite ends, in each case plastically deformable between an open position for admitting the fastener and a closed position for preventing retraction.
    Type: Application
    Filed: March 9, 2001
    Publication date: November 15, 2001
    Inventors: Christopher M. Campbell, Donald E. Anselm, Jason D. Blain, Joe P. Bales, Dan L. Pastrick, George A. Ramirez, Rick B. Delamarter, Leonard J. Tokish
  • Anterior cervical plate and fixation system
    Patent number: 6258089
    Abstract: An anterior cervical plate is disclosed, along with threaded fasteners for securing the plate to vertebrae or other osseous material. The cervical plate has several pockets or apertures, preferably at least four, to receive a corresponding number of the fasteners. The pockets have spherical surfaces, and the fasteners have heads with similarly sized spherical surfaces, which when engaged permit each of the fasteners to be oriented at a variety of projection angles with respect to the plate. In connection with each pocket, the cervical plate incorporates a fastener retaining feature. The feature can take the form of a cantilevered tab or a beam supported at its opposite ends, in each case plastically deformable between an open position for admitting the fastener and a closed position for preventing retraction.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: July 10, 2001
    Assignee: Alphatec Manufacturing, Inc.
    Inventors: Christopher M. Campbell, Donald E. Anselm, Jason D. Blain, Joel P. Bales, Dan L. Pastrick, George A. Ramirez, Rick B. Delamarter, Leonard J. Tokish, Jr.