Patents Represented by Attorney Michael J. Loi
  • Patent number: 8328870
    Abstract: A stand-alone interbody fixation system having a cage, anterior fixation blade and posterior fixation blade. The cage includes an annular side wall with an open interior and upper and lower surfaces, the cage being configured to fit between end plates of adjacent vertebrae. The anterior fixation blade includes an anterior alignment boss with two opposing outward extending anterior blades with end plate penetrating tips configured to fit within the open interior of the cage. The posterior fixation blade includes a posterior alignment boss with two opposing outward extending posterior blades with end plate penetrating tips configured to fit within the open interior of the cage. The anterior alignment boss and posterior alignment boss being rotatably coupled to each other and with a first opening and a second opening in the annular side wall opposite the first opening.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: December 11, 2012
    Assignee: Alphatec Spine, Inc.
    Inventors: Nirali Patel, Yang Cheng, Fred Murrillo, Thomas Purcell, Jens Peter Timm
  • Patent number: 8262660
    Abstract: The invention relates to spinal fusion implants or grafts and to apparatus for the installation thereof. More specifically, the invention is a serrated cutting or abrading tool designed to be pushed into an intervertebral space and thereby remove and partially penetrate the cortical bone layer that defines the endplates of the respective mutually adjacent vertebral bodies.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: September 11, 2012
    Assignee: Alphatec Spine, Inc.
    Inventors: Keith E. Jansen, Andrew R. Sennett