Patents Assigned to SYNERGY DISC
  • Patent number: 10786362
    Abstract: The present invention provides artificial disc prostheses, methods and instrumentation for implantation and revision thereof. Each prosthesis may comprise superior and inferior end plates and a nucleus positioned between articular surfaces of the end plates. The end plates may have planar bone engagement surfaces with a plurality of self-cutting teeth. The articular surfaces of the end plates may be planar or include a flattened portion. The nucleus includes superior and inferior articular surfaces which may comprise flattened portions such that when the articular surfaces of the nucleus and the end plates are placed in cooperation in a preferred orientation, the flattened and/or planar portions are aligned. Each prosthesis may provide flexion/extension, anterior/posterior translation, lateral bending, and/or axial rotation degrees of freedom.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: September 29, 2020
    Assignee: SYNERGY DISC REPLACEMENT, INC.
    Inventors: Neil Duggal, Dylan Matthew Hushka, Joshua A. Butters, Jeffery D. Arnett
  • Patent number: 9125754
    Abstract: An artificial disc prosthesis is provided. The prosthesis of the present invention enables spinal segment alignment by having a variable height across its surface. The variable height is achieved by an asymmetric artificial nucleus or by at least one variable height end plate.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: September 8, 2015
    Assignee: SYNERGY DISC REPLACEMENT, INC.
    Inventors: Neil Duggal, Louise Raymond, Daniel R. Baker, Robert Conta, Carly A. Thaler, David T. Stinson
  • Patent number: 9119678
    Abstract: Facet fixation implants include a cap member with a circular base portion and an eccentric raised portion. The raised portion includes first and second lobes and is smoothly contoured to provide an unobtrusive profile when implanted. Beveled teeth project from the implant to provide fixation and compression across the facet joint. The cap member includes an offset aperture which receives a fastener. Tools, guiding instruments and methods for implantation of the implants are disclosed.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: September 1, 2015
    Assignee: SYNERGY DISC REPLACEMENT INC.
    Inventors: Neil Duggal, Dylan M. Hushka, Joshua A. Butters, Nicholas Slater
  • Publication number: 20130204369
    Abstract: An artificial disc prosthesis is provided. The prosthesis includes first and second end plates and a nucleus. Each end plate may have one or more rows of keels for fixation to vertebral bodies. The nucleus may engage a slot or trough in an inner surface of an end plate. The trough can be open on the posterior or anterior end to allow the nucleus to slide into the trough without undue distraction of adjacent vertebrae. The nucleus can be prevented from moving out of the trough by inserting a stop in the trough.
    Type: Application
    Filed: March 14, 2013
    Publication date: August 8, 2013
    Applicant: SYNERGY DISC REPLACEMENT, INC.
    Inventor: SYNERGY DISC REPLACEMENT, INC.
  • Publication number: 20110320003
    Abstract: An artificial disc prosthesis is provided. The prosthesis of the present invention enables spinal segment alignment by having a variable height across its surface. The variable height is achieved by an asymmetric artificial nucleus or by at least one variable height end plate.
    Type: Application
    Filed: September 12, 2011
    Publication date: December 29, 2011
    Applicant: SYNERGY DISC REPLACEMENT, INC.
    Inventors: Neil Duggal, Louise Raymond, Daniel R. Baker, Robert Conta, Carly A. Thaler, David T. Stinson
  • Publication number: 20110082556
    Abstract: An artificial disc prosthesis is provided. The prosthesis enables spinal segment alignment by having a variable height across its surface. The variable height is achieved by an asymmetric artificial nucleus or by at least one variable height end plate. The prosthesis may have a central keel on one end plate and an offset pair of keels on a second end plate. The nucleus may engage a slot or trough in an inner surface of an end plate. The trough can be open on the posterior or anterior end to allow the nucleus to slide into the trough without undue distraction of adjacent vertebrae. The nucleus can be prevented from moving out of the trough by inserting a stop in the trough.
    Type: Application
    Filed: November 15, 2010
    Publication date: April 7, 2011
    Applicant: SYNERGY DISC REPLACEMENT, INC.
    Inventors: Neil Duggal, Daniel R. Baker, Robert Conta, Carly A. Thaler, David T. Stinson
  • Publication number: 20090149960
    Abstract: Methods and instrumentation for implantation of an intervertebral disc prosthesis are provided. A guide tool with sagittal and coronal reference features guides placement of guide pins relative to a sagittal plane and a coronal plane of the vertebrae. A retainer lockable to the guide pins has a ratcheting mechanism providing distraction or compression. A rasp, planer or other tools may be aligned to the retainer and inserted into the intervertebral space to prepare the vertebral endplates. An interoperatively adjustable trial is alignable to the retainer and measures an angularity of the intervertebral space. A prosthesis with keying features may be mounted to a prosthesis inserter with complementary features, held by pivotable arms and compressed between prongs. The inserter may be aligned to the retainer and advanced to implant the prosthesis in the intervertebral space. A prosthesis remover may grip one prosthetic end plate and extract the entire prosthesis.
    Type: Application
    Filed: November 25, 2008
    Publication date: June 11, 2009
    Applicant: SYNERGY DISC REPLACEMENT
    Inventors: Dylan Hushka, Joshua A. Butters, Jeffery D. Arnett, Neil Duggal
  • Publication number: 20090125033
    Abstract: Methods and instrumentation for implantation of an intervertebral disc prosthesis are provided. A guide tool with sagittal and coronal reference features guides placement of guide pins relative to a sagittal plane and a coronal plane of the vertebrae. A retainer lockable to the guide pins has a ratcheting mechanism providing distraction or compression. A rasp, planer or other tools may be aligned to the retainer and inserted into the intervertebral space to prepare the vertebral endplates. An interoperatively adjustable trial is alignable to the retainer and measures an angularity of the intervertebral space. A prosthesis with keying features may be mounted to a prosthesis inserter with complementary features, held by pivotable arms and compressed between prongs. The inserter may be aligned to the retainer and advanced to implant the prosthesis in the intervertebral space. A prosthesis remover may grip one prosthetic end plate and extract the entire prosthesis.
    Type: Application
    Filed: November 25, 2008
    Publication date: May 14, 2009
    Applicant: SYNERGY DISC REPLACEMENT
    Inventors: Dylan Hushka, Joshua A. Butters, Jeffery D. Arnett, Neil Duggal
  • Publication number: 20090076615
    Abstract: The present invention provides artificial disc prostheses, methods and instrumentation for implantation and revision thereof. Each prosthesis may comprise superior and inferior end plates and a nucleus positioned between articular surfaces of the end plates. The end plates may have planar bone engagement surfaces with a plurality of self-cutting teeth. The articular surfaces of the end plates may be planar or include a flattened portion. The nucleus includes superior and inferior articular surfaces which may comprise flattened portions such that when the articular surfaces of the nucleus and the end plates are placed in cooperation in a preferred orientation, the flattened and/or planar portions are aligned. Each prosthesis may provide flexion/extension, anterior/posterior translation, lateral bending, and/or axial rotation degrees of freedom.
    Type: Application
    Filed: October 27, 2008
    Publication date: March 19, 2009
    Applicant: SYNERGY DISC
    Inventors: Neil Duggal, Louise C. Raymond, Joshua A. Butters, Jeffery D. Arnett, Dylan M. Hushka
  • Publication number: 20090043393
    Abstract: An artificial disc prosthesis is provided. The prosthesis of the present invention enables spinal segment alignment by having a variable height across its surface. The variable height is achieved by an asymmetric artificial nucleus or by at least one variable height end plate.
    Type: Application
    Filed: September 30, 2008
    Publication date: February 12, 2009
    Applicant: SYNERGY DISC REPLACEMENT, INC.
    Inventors: Neil Duggal, Louise Raymond, Daniel R. Baker, Robert Conta, Carly A. Thaler, David T. Stinson
  • Publication number: 20090043392
    Abstract: An artificial disc prosthesis is provided. The prosthesis of the present invention enables spinal segment alignment by having a variable height across its surface. The variable height is achieved by an asymmetric artificial nucleus or by at least one variable height end plate.
    Type: Application
    Filed: September 30, 2008
    Publication date: February 12, 2009
    Applicant: SYNERGY DISC REPLACEMENT, INC.
    Inventors: Neil Duggal, Louise Raymond, Daniel R. Baker, Robert Conta, Carly A. Thaler, David T. Stinson
  • Publication number: 20080215156
    Abstract: The present invention provides an implantable joint prosthesis configured to replace a natural joint, and methods for implantation. The prosthesis may include a first component implantable in a first bone, having a first bearing surface, and a second component implantable in a second bone, having a second bearing surface which corresponds to the first bearing surface. Each bearing surface may include a flattened section such that when the bearing surfaces are placed in cooperation with one another in a preferred orientation, the flattened sections are aligned. Alternatively, the bearing surfaces may have and asymmetric configuration, with non-congruent surfaces that may enable correction of deformity. Several types of implantable joint prostheses are disclosed, including: carpometacarpal, metacarpophalangeal, metatarsophalangeal, distal interphalangeal, proximal interphalangeal, ankle, knee, shoulder, and hip.
    Type: Application
    Filed: March 4, 2008
    Publication date: September 4, 2008
    Applicant: SYNERGY DISC REPLACEMENT
    Inventors: Neil A. Duggal, Louise C. Raymond