Patents Assigned to Wenzel Spine, Inc.
  • Publication number: 20230346248
    Abstract: Devices, systems, tools and methods are disclosed during diagnosis and treatment of spinal conditions. A cervical plumb line device is disclosed which can be used to produce a measurement of the sagittal vertical axis associated with a target part of a patient's cervical spinal anatomy from two or more radiographic images. Also disclosed is an apparatus for measuring the angulation of a patient's spinal anatomy relative to a cervical plumb line which uses a plurality of bolsters. A device that can be used to assist in implantation of an interbody device during spinal fusion device is also disclosed. Systems which produce geometric data describing optimized spinal fusion geometric at a spine level selected to receive spinal fusion.
    Type: Application
    Filed: June 24, 2023
    Publication date: November 2, 2023
    Applicant: WENZEL SPINE, INC.
    Inventor: Adam DEITZ
  • Patent number: 11707203
    Abstract: Devices, systems, tools and methods are disclosed during diagnosis and treatment of spinal conditions. A cervical plumb line device is disclosed which can be used to produce a measurement of the sagittal vertical axis associated with a target part of a patient's cervical spinal anatomy from two or more radiographic images. Also disclosed is an apparatus for measuring the angulation of a patient's spinal anatomy relative to a cervical plumb line which uses a plurality of bolsters. A device that can be used to assist in implantation of an interbody device during spinal fusion device is also disclosed. Systems which produce geometric data describing optimized spinal fusion geometric at a spine level selected to receive spinal fusion.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: July 25, 2023
    Assignee: WENZEL SPINE, INC.
    Inventor: Adam Deitz
  • Patent number: 11219531
    Abstract: An intervertebral spacing implant, including: a seat having an interior surface and an exterior surface; branches having an anterior end and a posterior end, the anterior end of the branches coupled to the seat and extending in a direction away from the seat, each of the branches having an interior surface and an exterior surface opposite the interior surface, the seat and the branches forming a cage, the exterior surface of the seat and the exterior surface of the branches defining an internal volume of the cage, the cage including fenestrations; a spacer configured to fit within the cage and move in the direction away from the seat and toward the posterior end of the plurality of branches, the spacer and the cage configured such that the branches will move from an unexpanded position to an expanded position when the spacer is urged in the direction away from the seat.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: January 11, 2022
    Assignee: WENZEL SPINE, INC.
    Inventors: Jeremy Jon Lemoine, Erik Earl Emstad
  • Publication number: 20210346173
    Abstract: Disclosed are methods, apparatuses and software products for graphic processing using a visual display system and image analysis for sizing of surgical implants in the planning and execution of spinal surgery, such as spinal fusion surgery of the cervical spine. The graphic processing includes determining a trajectory line for one or more target spine levels captured and measured by one or more measuring system to generate a 3D motion dataset for use in a range of diagnostic and therapeutic applications.
    Type: Application
    Filed: May 3, 2021
    Publication date: November 11, 2021
    Applicant: WENZEL SPINE, INC.
    Inventors: Adam DEITZ, Steve Won-Tze CHANG
  • Publication number: 20210220057
    Abstract: Disclosed are methods and systems used with surgical navigation systems that enable a user to generate an optimized anatomical dataset for a spine level of interest. The systems and methods allow users to determine a target geometry for a spinal level targeted for spinal surgery. Additionally, the user can project loads across the spinal orthopedic implants and determine a projected subsidence over time.
    Type: Application
    Filed: March 1, 2021
    Publication date: July 22, 2021
    Applicant: WENZEL SPINE, INC.
    Inventor: Adam DEITZ
  • Publication number: 20210196468
    Abstract: An embodiment includes devices and methods for using an expandable intervertebral body fusion device with two expansion wedges within a generally hollow main body. After implantation into the intervertebral disc space, the expansion wedges are simultaneously moved from the center of the device toward the ends, which flexes the arms of the cage and increases the size of the implant. This expansion stabilizes the device in the disc space and increases the disc height, thereby reducing foraminal compression of spinal nerves and creating a stable motion segment for eventual fusion. Other embodiments are described herein.
    Type: Application
    Filed: March 10, 2021
    Publication date: July 1, 2021
    Applicant: WENZEL SPINE, INC.
    Inventor: Erik EMSTAD
  • Patent number: 10959786
    Abstract: Disclosed are methods and systems used with surgical navigation systems that enable a user to generate an optimized anatomical dataset for a spine level of interest. The systems and methods allow users to determine a target geometry for a spinal level targeted for spinal surgery. Additionally, the user can project loads across the spinal orthopedic implants and determine a projected subsidence overtime.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: March 30, 2021
    Assignee: WENZEL SPINE, INC.
    Inventor: Adam Deitz
  • Patent number: 10945857
    Abstract: An embodiment includes an expandable intervertebral body fusion device with two expansion wedges within a generally hollow main body. After implantation into the intervertebral disc space, the expansion wedges are simultaneously moved from the center of the device toward the ends, which flexes the arms of the cage and increases the size of the implant. This expansion stabilizes the device in the disc space and increases the disc height, thereby reducing foraminal compression of spinal nerves and creating a stable motion segment for eventual fusion. Other embodiments are described herein.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: March 16, 2021
    Assignee: WENZEL SPINE, INC.
    Inventor: Erik Emstad
  • Patent number: 10098756
    Abstract: An embodiment includes an expandable intervertebral body fusion device with two expansion wedges within a generally hollow main body. After implantation into the intervertebral disc space, the expansion wedges are simultaneously moved from the center of the device toward the ends, which flexes the arms of the cage and increases the size of the implant. This expansion stabilizes the device in the disc space and increases the disc height, thereby reducing foraminal compression of spinal nerves and creating a stable motion segment for eventual fusion. Other embodiments are described herein.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: October 16, 2018
    Assignee: Wenzel Spine, Inc.
    Inventor: Erik Emstad
  • Patent number: 10010356
    Abstract: Systems for trauma and/or joint fusion implants and instruments include transarticular screw and intra-articular washer, polyaxial screw and plate, single- and multi-level polyaxial bone clamps, and minimally invasive adaptations.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: July 3, 2018
    Assignee: Wenzel Spine, Inc.
    Inventors: Douglas E. Schmierer, Charles R. Forton, Victor Zaporojan, Marc C. Yap
  • Patent number: 9707095
    Abstract: An embodiment includes an expandable intervertebral body fusion device with two expansion wedges within a generally hollow main body. After implantation into the intervertebral disc space, the expansion wedges are simultaneously moved from the center of the device toward the ends, which flexes the arms of the cage and increases the size of the implant. This expansion stabilizes the device in the disc space and increases the disc height, thereby reducing foraminal compression of spinal nerves and creating a stable motion segment for eventual fusion. Other embodiments are described herein.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: July 18, 2017
    Assignee: Wenzel Spine, Inc.
    Inventor: Erik Emstad
  • Patent number: 9314348
    Abstract: An embodiment includes an expandable intervertebral body fusion device with two expansion wedges within a generally hollow main body. After implantation into the intervertebral disc space, the expansion wedges are simultaneously moved from the center of the device toward the ends, which flexes the arms of the cage and increases the size of the implant. This expansion stabilizes the device in the disc space and increases the disc height, thereby reducing foraminal compression of spinal nerves and creating a stable motion segment for eventual fusion. Other embodiments are described herein.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: April 19, 2016
    Assignee: Wenzel Spine, Inc.
    Inventor: Erik Emstad
  • Patent number: 8435299
    Abstract: An expandable osteosynthesis implant has branches (5) each connected at one end to a seat (7) which is pierced by an orifice (8), suitable for being slid from a posterior direction between the facing faces of two consecutive vertebrae in order to hold them a given distance apart and restore stability of the spinal column. According to the invention, said branches (5) and said seat (7) define a hollow cage (1) which, in a “rest” position, has an outside general shape that is a cylinder of circular section, and a portion at least of the inside volume (9) of the cage (1) towards the distal ends of said branches (5) is in the form of a circular truncated cone whose large base is towards said seat (7) which implant has at least three branches (5) and, inside said inside volume (9) at least one spacer (2) suitable for passing through said orifice (8) and the large base of the truncated cone.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: May 7, 2013
    Assignee: Wenzel Spine, Inc.
    Inventors: Jean-Luc Chauvin, David Attali, David Attia
  • Patent number: 7828848
    Abstract: An expandable osteosynthesis implant has branches each connected at one end to a seat which is pierced by an orifice, suitable for being slid from a posterior direction between the facing faces of two consecutive vertebrae in order to hold them a given distance apart and restore stability of the spinal column. The branches and the seat define a hollow cage which, in a “rest” position, has an outside general shape that is a cylinder of circular section, and a portion at least of the inside volume of the cage towards the distal ends of the branches is in the form of a circular truncated cone whose large base is towards the seat, which implant has at least three branches and, inside the inside volume at least one spacer suitable for passing through the orifice and the large base of the truncated cone.
    Type: Grant
    Filed: April 16, 2002
    Date of Patent: November 9, 2010
    Assignee: Wenzel Spine, Inc.
    Inventors: Jean-Luc Chauvin, David Attali, David Attia