1
Daniel J Triplett, Joel R Helgerson, Robert W Hoy: Polyaxial orthopedic fastening apparatus with independent locking modes. GMEDELAWARE 2, November 22, 2011: US08062336 (23 worldwide citation)

An apparatus is designed to attach an implant to bone in a manner that permits rotational adjustment of the implant about multiple axes prior to securement via the apparatus. The apparatus includes separate rotational and translational fasteners that can be individually locked to independently restr ...


2
Daniel J Triplett, Andrew R Fauth, Joel R Helgerson: System and method for facet joint replacement with detachable coupler. GMEDelaware 2, June 26, 2012: US08206418 (17 worldwide citation)

A facet joint replacement system includes an inferior implant with an inferior articular surface, and a superior implant with a superior articular surface. The implants may be coupled together by a detachable coupler which can align and rigidly hold the inferior and superior articular surfaces in a ...


3
Joel R Helgerson, Shresta Marigowda, Andrew Fauth: Polyaxial facet fixation screw system. OsteoMed, Fulbright & Jaworski, September 10, 2013: US08529609 (9 worldwide citation)

A screw system includes a screw and a washer assembly captive to the screw. The washer assembly is polyaxially pivotable relative to the screw. The screw may be freely rotated in one direction relative to the washer assembly, but frictionally binds with the washer assembly when rotated in a second d ...


4
Andrew R Fauth, Daniel J Triplett, Joel R Helgerson, Daniel E Gerbec: Facet joint replacement instruments and methods. Globus Medical, April 7, 2015: US08998952 (6 worldwide citation)

A facet joint replacement system includes an inferior implant with an inferior articular surface, a superior implant with a superior articular surface, and an optional crossbar. The inferior implant and the superior implant are each polyaxially adjustably connected to fixation elements which anchor ...


5
Joel R Helgerson: System and method for facet joint replacement. GMedelaware 2, August 28, 2012: US08252027 (2 worldwide citation)

A facet joint replacement system includes an inferior implant with an inferior articular surface, a superior implant with a superior articular surface and may include a crosslink extending across a vertebral sagittal plane. The inferior implant may comprise an inferior strut, and a polyaxially adjus ...


6
Andrew R Fauth, Daniel J Triplett, Joel R Helgerson, Daniel E Gerbec: Facet joint replacement instruments and methods. GMEDelaware 2, December 2, 2014: US08900270 (2 worldwide citation)

A facet joint replacement system includes an inferior implant with an inferior articular surface, a superior implant with a superior articular surface, and an optional crossbar. The inferior implant and the superior implant are each polyaxially adjustably connected to fixation elements which anchor ...


7
Andrew R Fauth, Daniel J Triplett, Joel R Helgerson: Taper-locking fixation system. GMEDelaware 2, December 2, 2014: US08900273 (1 worldwide citation)

A fixation system is designed to lock an elongated member within a housing member, permitting positional and/or orientational adjustment of the elongated member prior to locking. The system includes a housing member, a slotted spherical collet, an elongated member, and may include a tapered wedge, w ...


8
Marc Yap, Rob D Dickerman, Matthew T Bennett, Charles R Forton, Andrew R Fauth, Joel R Helgerson, Shresta Marigowda: Polyaxial facet fixation screw system with fixation augmentation. OsteoMed, Norton Rose Fulbright US, April 7, 2015: US08998966 (1 worldwide citation)

A screw system includes a screw and a washer assembly captive to the screw. The washer assembly is polyaxially pivotable relative to the screw. The screw may be freely rotated in one direction relative to the washer assembly, but frictionally binds with the washer assembly when rotated in a second d ...


9
Andrew R Fauth, Daniel J Triplett, Joel R Helgerson, Daniel E Gerbec: Facet joint replacement instruments and methods. Globus Medical, July 4, 2017: US09693808 (1 worldwide citation)

A facet joint replacement system includes an inferior implant with an inferior articular surface, a superior implant with a superior articular surface, and an optional crossbar. The inferior implant and the superior implant are each polyaxially adjustably connected to fixation elements which anchor ...


10
Daniel J Triplett, Joel R Helgerson, Robert W Hoy: Polyaxial orthopedic fasteneing apparatus with independent locking modes. GMEDelaware 2, December 30, 2014: US08920468 (1 worldwide citation)

An apparatus is designed to attach an implant to bone in a manner that permits rotational adjustment of the implant about multiple axes prior to securement via the apparatus. The apparatus includes separate rotational and translational fasteners that can be individually locked to independently restr ...