Patents Assigned to Wenzel Spine, Inc.
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Publication number: 20230346248Abstract: 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: ApplicationFiled: June 24, 2023Publication date: November 2, 2023Applicant: WENZEL SPINE, INC.Inventor: Adam DEITZ
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Patent number: 11707203Abstract: 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: GrantFiled: October 10, 2017Date of Patent: July 25, 2023Assignee: WENZEL SPINE, INC.Inventor: Adam Deitz
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Patent number: 11219531Abstract: 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: GrantFiled: April 10, 2019Date of Patent: January 11, 2022Assignee: WENZEL SPINE, INC.Inventors: Jeremy Jon Lemoine, Erik Earl Emstad
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Publication number: 20210346173Abstract: 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: ApplicationFiled: May 3, 2021Publication date: November 11, 2021Applicant: WENZEL SPINE, INC.Inventors: Adam DEITZ, Steve Won-Tze CHANG
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Publication number: 20210220057Abstract: 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: ApplicationFiled: March 1, 2021Publication date: July 22, 2021Applicant: WENZEL SPINE, INC.Inventor: Adam DEITZ
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Publication number: 20210196468Abstract: 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: ApplicationFiled: March 10, 2021Publication date: July 1, 2021Applicant: WENZEL SPINE, INC.Inventor: Erik EMSTAD
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Patent number: 10959786Abstract: 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: GrantFiled: September 6, 2019Date of Patent: March 30, 2021Assignee: WENZEL SPINE, INC.Inventor: Adam Deitz
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Patent number: 10945857Abstract: 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: GrantFiled: October 11, 2018Date of Patent: March 16, 2021Assignee: WENZEL SPINE, INC.Inventor: Erik Emstad
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Patent number: 10098756Abstract: 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: GrantFiled: July 13, 2017Date of Patent: October 16, 2018Assignee: Wenzel Spine, Inc.Inventor: Erik Emstad
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Patent number: 10010356Abstract: 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: GrantFiled: October 3, 2016Date of Patent: July 3, 2018Assignee: Wenzel Spine, Inc.Inventors: Douglas E. Schmierer, Charles R. Forton, Victor Zaporojan, Marc C. Yap
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Patent number: 9707095Abstract: 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: GrantFiled: April 18, 2016Date of Patent: July 18, 2017Assignee: Wenzel Spine, Inc.Inventor: Erik Emstad
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Patent number: 9314348Abstract: 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: GrantFiled: June 4, 2015Date of Patent: April 19, 2016Assignee: Wenzel Spine, Inc.Inventor: Erik Emstad
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Patent number: 8435299Abstract: 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: GrantFiled: September 21, 2010Date of Patent: May 7, 2013Assignee: Wenzel Spine, Inc.Inventors: Jean-Luc Chauvin, David Attali, David Attia
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Patent number: 7828848Abstract: 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: GrantFiled: April 16, 2002Date of Patent: November 9, 2010Assignee: Wenzel Spine, Inc.Inventors: Jean-Luc Chauvin, David Attali, David Attia