Patents Assigned to Alphatec
  • System for measuring the displacements of a vertebral column
    Patent number: 10524724
    Abstract: A system for measuring the displacements of a vertebral column having a segment comprising at least one vertebra having a body delimited by an upper vertebral end plate and a lower vertebral end plate, and each vertebra in the segment having a location marker associated, attached thereto and providing a location system with an orientation of the location marker, the system including a localizer configured to detect the initial orientations of the location markers, and a microprocessor configured to determine, for each vertebra, an initial orientation of a vertebral plane parallel to at least one end plate of the vertebra, and to determine the current orientation of the vertebral plane of the vertebra from the current orientation of the location marker associated and the geometrical transformation associated with the vertebra.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: January 7, 2020
    Assignee: ALPHATEC SPINE, INC.
    Inventors: Jean-Charles Le Huec, Estelle Duveau, Sylvain Besson, Philippe Augerat
  • Variable angle bone anchor assembly having biased bushing press fitment
    Patent number: 10524840
    Abstract: A spinal screw assembly providing an adjustable securement of a fixation rod across at least two vertebrae. The assembly includes a pedicle screw having a spherical head portion, a threaded shaft portion and a tool engagement surface in the head portion for use in driving the screw into a vertebrae. The head portion of the screw is positioned in a body member adjacent a curvilinear surface disposed about an aperture in the end of the body member such that the shaft portion of the screw extends therethrough and the curvilinear inner surface abuts and mates with the head portion of the screw so as to define a ball joint therewith. The body member additionally defines a pair of opposed parallel slots therein adapted to receive a portion of the fixation rod and a locking cap bears against the fixation rod to releasably secure the rod within the assembly.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: January 7, 2020
    Assignee: Alphatec Spine, Inc.
    Inventors: Thomas Purcell, Don Hair, Tamas T. Frech
  • Stand alone interbody fixation system
    Patent number: 10500058
    Abstract: An interbody spacer system for insertion between a first vertebra and a second vertebra according to the principles of the present disclosure includes and interbody spacer and a first curved blade. The interbody spacer includes an outer wall and a first surface for engaging an endplate of the first vertebra and a second surface for engaging an endplate of the second vertebra. A first entry aperture in the outer wall and a first exit aperture on the first surface communicate with a first curved path extending therebetween. The first curved blade enters the first entry aperture and exits through the first exit aperture to secure the spacer to the first vertebra.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: December 10, 2019
    Assignee: Alphatec Spine, Inc.
    Inventors: Breanna McKenny, Joseph Aferzon, Jeffrey A. Bash
  • Adjustable hook
    Patent number: 10478233
    Abstract: A bone hook having a displaceable jaw is provided. The hook includes a rod receiving portion and main body with a jaw defining a slot for receiving a bone, and an actuator configured to vary the dimension of the slot. The actuator is configured to translate a rotation into an adjustment of a height of the slot thereby gripping or clamping a pedicle, lamina, or transverse process bone between the jaw and main body.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: November 19, 2019
    Assignee: Alphatec Spine, Inc.
    Inventor: Thomas Hackathorn, II
  • PIVOTAL BONE ANCHOR ASSEMBLY WITH SNAP-IN-PLACE BUSHING HAVING RESILIENT ALIGNMENT TABS AND SHANK HEAD ENGAGING SLOTS
    Publication number: 20190336176
    Abstract: A spinal screw assembly providing an adjustable securement of a fixation rod across at least two vertebrae. The assembly includes a pedicle screw having a spherical head portion, a threaded shaft portion and a tool engagement surface in the head portion for use in driving the screw into a vertebrae. The head portion of the screw is positioned in a body member adjacent a curvilinear surface disposed about an aperture in the end of the body member such that the shaft portion of the screw extends therethrough and the curvilinear inner surface abuts and mates with the head portion of the screw so as to define a ball joint therewith. The body member additionally defines a pair of opposed parallel slots therein adapted to receive a portion of the fixation rod and a locking cap bears against the fixation rod to releasably secure the rod within the assembly.
    Type: Application
    Filed: June 27, 2019
    Publication date: November 7, 2019
    Applicant: Alphatec Spine, Inc.
    Inventors: Thomas Purcell, Don Hair, Tamas T. Frech
  • Stand-alone interbody fixation system
    Patent number: 10441433
    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: November 1, 2012
    Date of Patent: October 15, 2019
    Assignee: Alphatec Spine, Inc.
    Inventors: Nirali Patel, Yang Cheng, Fred Murillo, Thomas Purcell, Jens Peter Timm
  • Instrument and method for in situ rod adjustment
    Patent number: 10441327
    Abstract: The instruments and methods of the present disclosure include an outer shaft, an inner shaft, a roller, and an actuator. In some examples, the outer shaft includes a lumen extending from a proximal end to a distal end. The inner shaft is disposed within the lumen. The roller rotatably is coupled with the distal end at an axis and configured to engage the fixation rod. The actuator operably couples with the inner shaft to translate the inner shaft within the lumen and cause rotation of the roller to impart linear movement on the fixation rod.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: October 15, 2019
    Assignee: Alphatec Spine, Inc.
    Inventors: Nathan Meyer, Martin Bouliane, Wally Gillespie, Anand Parikh, Jens Peter Timm
  • Instrument and method for restoring motion to a polyaxial screw
    Patent number: 10398480
    Abstract: A polyaxial screw head remobilizer system for remobilizing a screw body member relative to a head of a polyaxial bone screw includes a barrel body, a handle assembly, an inner shaft, a slide assembly, and a lever. The barrel body includes proximal and distal ends. The distal end includes a plurality of prongs for releasably engaging a plurality of yokes of the polyaxial screw body member to center the inner shaft over the head of the screw. The handle assembly couples to the proximal end of the barrel body. The inner shaft, disposed within the barrel body, includes proximal and distal ends. An engagement feature of the inner shaft mates with pockets of a bushing of the screw body member. The slide assembly is operably coupled to the barrel body and effect translations of the inner shaft. The lever extends from the slide assembly and rotates to actuate the slide assembly.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: September 3, 2019
    Assignee: Alphatec Spine, Inc.
    Inventors: Tara Stevenson, Wally Gillespie, Clark Hutton
  • SPINAL SCREW ASSEMBLY WITH SNAP-IN-PLACE BUSHING ABOVE A SHANK HEAD HEMISPHERE
    Publication number: 20190239930
    Abstract: A spinal screw assembly providing an adjustable securement of a fixation rod across at least two vertebrae. The assembly includes a pedicle screw having a spherical head portion, a threaded shaft portion and a tool engagement surface in the head portion for use in driving the screw into a vertebrae. The head portion of the screw is positioned in a body member adjacent a curvilinear surface disposed about an aperture in the end of the body member such that the shaft portion of the screw extends therethrough and the curvilinear inner surface abuts and mates with the head portion of the screw so as to define a ball joint therewith. The body member additionally defines a pair of opposed parallel slots therein adapted to receive a portion of the fixation rod and a locking cap bears against the fixation rod to releasably secure the rod within the assembly.
    Type: Application
    Filed: April 17, 2019
    Publication date: August 8, 2019
    Applicant: Alphatec Spine, Inc.
    Inventors: Thomas Purcell, Don Hair, Tamas T. Frech
  • BONE SCREW ASSEMBLY WITH DIRECT PIVOTAL ENGAGEMENT BETWEEN SHANK HEAD AND RECEIVER
    Publication number: 20190239929
    Abstract: A spinal screw assembly providing an adjustable securement of a fixation rod across at least two vertebrae. The assembly includes a pedicle screw having a spherical head portion, a threaded shaft portion and a tool engagement surface in the head portion for use in driving the screw into a vertebrae. The head portion of the screw is positioned in a body member adjacent a curvilinear surface disposed about an aperture in the end of the body member such that the shaft portion of the screw extends therethrough and the curvilinear inner surface abuts and mates with the head portion of the screw so as to define a ball joint therewith. The body member additionally defines a pair of opposed parallel slots therein adapted to receive a portion of the fixation rod and a locking cap bears against the fixation rod to releasably secure the rod within the assembly.
    Type: Application
    Filed: April 16, 2019
    Publication date: August 8, 2019
    Applicant: Alphatec Spine, Inc.
    Inventors: Thomas Purcell, Don Hair, Tamas Frech
  • VARIABLE ANGLE BONE ANCHOR ASSEMBLY HAVING BIASED BUSHING PRESS FITMENT
    Publication number: 20190223919
    Abstract: A spinal screw assembly providing an adjustable securement of a fixation rod across at least two vertebrae. The assembly includes a pedicle screw having a spherical head portion, a threaded shaft portion and a tool engagement surface in the head portion for use in driving the screw into a vertebrae. The head portion of the screw is positioned in a body member adjacent a curvilinear surface disposed about an aperture in the end of the body member such that the shaft portion of the screw extends therethrough and the curvilinear inner surface abuts and mates with the head portion of the screw so as to define a ball joint therewith. The body member additionally defines a pair of opposed parallel slots therein adapted to receive a portion of the fixation rod and a locking cap bears against the fixation rod to releasably secure the rod within the assembly.
    Type: Application
    Filed: April 1, 2019
    Publication date: July 25, 2019
    Applicant: Alphatec Spine, Inc.
    Inventors: Thomas Purcell, Don Hair, Tamas T. Frech
  • PIVOTAL BONE ANCHOR ASSEMBLY WITH SNAP-IN-PLACE BUSHING FOR PRE-LOCK FRICTION FIT
    Publication number: 20190223921
    Abstract: A spinal screw assembly providing an adjustable securement of a fixation rod across at least two vertebrae. The assembly includes a pedicle screw having a spherical head portion, a threaded shaft portion and a tool engagement surface in the head portion for use in driving the screw into a vertebrae. The head portion of the screw is positioned in a body member adjacent a curvilinear surface disposed about an aperture in the end of the body member such that the shaft portion of the screw extends therethrough and the curvilinear inner surface abuts and mates with the head portion of the screw so as to define a ball joint therewith. The body member additionally defines a pair of opposed parallel slots therein adapted to receive a portion of the fixation rod and a locking cap bears against the fixation rod to releasably secure the rod within the assembly.
    Type: Application
    Filed: April 3, 2019
    Publication date: July 25, 2019
    Applicant: Alphatec Spine, Inc.
    Inventors: Thomas Purcell, Don Hair, Tamas T. Frech
  • PIVOTAL BONE ANCHOR ASSEMBLY WITH BIASED BUSHING FOR PRE-LOCK FRICTION FIT
    Publication number: 20190223920
    Abstract: A spinal screw assembly providing an adjustable securement of a fixation rod across at least two vertebrae. The assembly includes a pedicle screw having a spherical head portion, a threaded shaft portion and a tool engagement surface in the head portion for use in driving the screw into a vertebrae. The head portion of the screw is positioned in a body member adjacent a curvilinear surface disposed about an aperture in the end of the body member such that the shaft portion of the screw extends therethrough and the curvilinear inner surface abuts and mates with the head portion of the screw so as to define a ball joint therewith. The body member additionally defines a pair of opposed parallel slots therein adapted to receive a portion of the fixation rod and a locking cap bears against the fixation rod to releasably secure the rod within the assembly.
    Type: Application
    Filed: April 2, 2019
    Publication date: July 25, 2019
    Applicant: Alphatec Spine, Inc.
    Inventors: Thomas Purcell, Don Hair, Tamas T. Frech
  • Apparatus and method for connecting surgical rods
    Patent number: 10357290
    Abstract: An exemplary apparatus for connecting surgical rods according the principles of the present disclosure includes an elongate first arm, an elongate second arm, and a clamping assembly. The elongate first arm includes a first end that couples with a first rod and a second end with a first engagement portion. The elongate second arm includes a first end that couples with a second rod and a second end terminating in a second engagement portion. The clamping assembly includes a passageway that slidably receives the first engagement portion and that retains the second engagement portion and an adjustment member offset from the passageway that adjusts a clamping force to restrict positioning of the second engagement portion relative to the first engagement portion.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: July 23, 2019
    Assignee: Alphatec Spine, Inc.
    Inventor: Eller Torres
  • FASTENER RETENTION SYSTEM FOR SPINAL PLATES
    Publication number: 20190216512
    Abstract: A fastener retention system for retaining fasteners within apertures of an orthopedic plate includes a first pocket disposed between two of the apertures in the plate, a blocking member disposed between the two apertures and including a second pocket that forms a cavity with the first pocket, and a spring that expands from a compressed configuration within the first pocket to a decompressed configuration within the cavity.
    Type: Application
    Filed: March 26, 2019
    Publication date: July 18, 2019
    Applicant: Alphatec Spine, Inc.
    Inventors: Christopher M. Campbell, Tyler Holschlag
  • Pivotal bone anchor assembly with biased bushing for pre-lock friction fit
    Patent number: 10349983
    Abstract: A spinal screw assembly providing an adjustable securement of a fixation rod across at least two vertebrae. The assembly includes a pedicle screw having a spherical head portion, a threaded shaft portion and a tool engagement surface in the head portion for use in driving the screw into a vertebrae. The head portion of the screw is positioned in a body member adjacent a curvilinear surface disposed about an aperture in the end of the body member such that the shaft portion of the screw extends therethrough and the curvilinear inner surface abuts and mates with the head portion of the screw so as to define a ball joint therewith. The body member additionally defines a pair of opposed parallel slots therein adapted to receive a portion of the fixation rod and a locking cap bears against the fixation rod to releasably secure the rod within the assembly.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: July 16, 2019
    Assignee: Alphatec Spine, Inc.
    Inventors: Thomas Purcell, Don Hair, Tamas T Frech
  • Systems and methods for spinal fixation
    Patent number: 10335209
    Abstract: A rod inserter tool for inserting a rod into a surgical site, and a rod inserter tool assembly is provided. The tool includes a handle disposed at a proximal end of a shaft. An interior rod actuates the rod so as to rotate the rod generally 90 degrees. In one embodiment, the rod inserter tool includes a rack-and-pinion mechanism that is configured to slide out of the shaft and to rotate the rod about an axis orthogonal to the shaft. In another embodiment, the interior rod is rotatably coupled to the rod so as to rotate the rod when driven axially. In one embodiment, the handle is threaded to an interior of the shaft.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: July 2, 2019
    Assignee: Alphatec Spine, Inc.
    Inventors: Clark Hutton, Ketchen Smith
  • Orthopedic screw
    Patent number: 10299845
    Abstract: An orthopedic screw having a shaft and a thread ribbon is provided. The shaft includes a proximal driving end and a distal end. The thread ribbon extends around the shaft and including a base portion that is rigidly attached to the shaft and a flange portion that is resilient. The flange portion extends away from the shaft at a preset angle to form a preset outer thread diameter in a preset configuration. The flange portion extends away from the shaft at a second angle greater than the preset angle to form a second outer thread diameter greater than the preset outer thread diameter when the orthopedic screw is subjected to a pull out force.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: May 28, 2019
    Assignee: Alphatec Spine, Inc.
    Inventor: William Reimels
  • Implant deployment system and methods of use
    Patent number: 10285747
    Abstract: A surgical implant deployment system for deploying and removing an implant into a vertebral body. Upon insertion of the implant into the vertebral body, the actuator handle is turned causing the actuation rod to expand or compress the implant.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: May 14, 2019
    Assignee: Alphatec Spine, Inc.
    Inventor: William Reimels
  • Surgical Screw
    Publication number: 20190133656
    Abstract: A surgical screw configured to expand and prevent or minimize bone growth inside of the surgical screw is provided. Accordingly, the surgical screw is configured to increase the purchase of the surgical screw with respect to the bone, but also to be withdrawn from the bone without damaging the bone as a result of bone ingrowth. The surgical screw includes a center post with an inner bore and an outer sleeve concentric to the center post. An outer surface of the outer sleeve includes a thread to engage bone. The outer sleeve includes a cut pattern defining an expandable region configurable between a first state with a first radius measured from a longitudinal axis of the surgical screw to the outer surface and a second state having a second radius measured from the longitudinal axis to the outer surface.
    Type: Application
    Filed: January 7, 2019
    Publication date: May 9, 2019
    Applicant: Alphatec Spine, Inc.
    Inventor: William Reimels