51
Akiva Raphael Katz: Pedicle screw assembly. McAulay Nissen Goldberg Kiel & Hand, November 23, 1999: US05989254 (192 worldwide citation)

A pedicle screw assembly consists of a screw having a part spherical head providing a saddle shaped contact surface for a connecting rod, the head is held in a coupling member allowing limited angular movement between the screw and coupling member in one plane only and this plane is at right angles ...


52
Peter Metz Stavenhagen, Bernd Robioneck: Connecting element for spinal stabilizing system. Howmedica, Lerner David Littenberg Krumholz & Mentlik, December 14, 1999: US06001098 (189 worldwide citation)

The invention relates to a connecting element for connecting a screw in the spine with a stabilizing rod, the connecting element being easily and quickly securable. The connecting element includes a receiving section which receives the stabilizing rod and which is part of a tension member having a t ...


53
Joseph P Errico, Thomas J Errico, James D Ralph, Stephen Tatar: Polyaxial pedicle screw having a compression locking rod gripping mechanism. Spinal Concepts, Conley Rose & Tayon P C, September 22, 1998: US05810819 (186 worldwide citation)

A polyaxial orthopedic device for use with rod implant apparatus includes a screw having a curvate ball top, a polyaxial head member having a socket into which the head of the screw is initially polyaxially nested, a vertical slot which renders the socket compressible, and a horizontal through hole ...


54
David F Miller, Robert A Farris, John P Barrett: Spinal fixation system. Danek Group, Woodard Emhardt Naughton Moriarty & McNett, March 7, 1995: US05395371 (185 worldwide citation)

A a spinal fixation system comprises an elongated fixation plate having a bottom side for facing the vertebrae, an opposite top side extending generally parallel to the bottom side, and an elongated slot defined therethrough which extends substantially along the length of the plate. The slot has a l ...


55
Avi J Bernstein: Modular pedicle screw system. SDGI Holdings, Woodard Emhardt Naughton Moriarty & McNett, December 21, 1999: US06004322 (182 worldwide citation)

A modular pedicle screw system for use with a longitudinal member, such as a plate or rod, having a fastener with a threaded lower portion for engaging a spinal element and an upper portion adapted to receive a headpiece. The headpiece is adapted to mate with the upper portion of the fastener and to ...


56
Seth L Neubardt: Procedure for spinal pedicle screw insertion. Leo Zucker, March 23, 1993: US05196015 (180 worldwide citation)

Pedicle screws are inserted in spinal vertebrae in a manner to reduce the likelihood of nerve damage caused by improper screw placement. A screw opening is started in part of a skeletal region, e.g., a pedicle of a lumbar vertebra and an electric potential of a certain magnitude is applied to the in ...


57
Joseph P Errico, Thomas J Errico, James D Ralph, Stephen Tatar: Polyaxial pedicle screw having a compression locking rod gripping mechanism. Spinal Concepts, Conley Rose & Tayon PC, December 7, 1999: US05997539 (179 worldwide citation)

A polyaxial orthopedic device for use with rod implant apparatus includes a screw having a curvate ball top, a polyaxial head member having a socket into which the head of the screw is initially polyaxially nested, a vertical slot which renders the socket compressible, and a horizontal through hole ...


58
R Charles Ray, Richard B Ashman: Sacral implant system. Salut, Christensen O Connor Johnson & Kindness, April 5, 1994: US05300073 (177 worldwide citation)

A sacral implant system includes first and second sacral plates that are affixed on opposite sides of the sacrum adjacent the lumbosacral junction. The sacral plates include at least a pedicle and an oblique mounting means for rigidly affixing the sacral plates to the sacrum. First and second fixati ...


59
Peter Metz Stavenhagen, Bernd Robioneck: Correcting a spinal column. Howmedica, Peter C Richards, Lawrence C Akers, Elizabeth O Slade, November 4, 1997: US05683390 (174 worldwide citation)

An apparatus for correcting a spinal column having damaged vertebrae comprises a fastener (which is preferably a pedicle screw) having a receiving slot for holding a distracting or compressing bar. The bar is positioned within the slot in a manner permitting adjustment and is then locked in a fixed ...


60
Thomas J Errico: Efficient assembling modular locking pedicle screw. Fastenetix, Joseph P Errico Esq, Timothy J Bortree Esq, November 19, 2002: US06482207 (173 worldwide citation)

A modular pedicle screw and rod implant assembly includes a shant screw, a rod holding element, a locking member, a rod, and a nut. The shant screw has a lower threaded shaft portion for insertion into the pedicle and a top shaft portion which is unthreaded, a portion of which is tapered. The lockin ...