11
Joseph P Errico, Thomas J Errico, James D Ralph, Steven Tatar: Modular spinal plate for use with modular polyaxial locking pedicle screws. TechSys, Joseph P Errico Esq, September 1, 1998: US05800435 (367 worldwide citation)

A modular spinal plate assembly for use with modular polyaxial pedicle screw implant devices includes a track portion having a pair of parallel rails and a multiplicity of compressible coupling elements which are slideably mounted about the rails. The compressible coupling elements each have a throu ...


12
Stephen Tatar: Polyaxial pedicle screw having a loosely coupled locking cap. Bones Consulting, Joseph P Errico Esq, September 5, 2000: US06113601 (365 worldwide citation)

A polyaxial pedicle screw for use with rod implant apparatus includes a rod receiving body, a screw having a curvate head, a compression element, and a means for loosely and reversibly maintaining a coupled relationship between the compression element and the screw head during angulation thereof rel ...


13
Christian Lutz: Pedicle screw and an assembly aid therefor. Howmedica, Lerner David Littenberg Krumholz & Mentlik, February 6, 2001: US06183472 (360 worldwide citation)

The invention relates to a pedicle screw and an assembly aid therefor, wherein the pedicle screw comprises a threaded shank and a fork-like head formed by two distanced sections and wherein the sections between themselves form a receiver for an elongate rod and on the sides facing one another there ...


14
Bret A Ferree: Spinal alignment apparatus and methods. NuVasive, Jonathan Spangler, October 12, 2004: US06802844 (358 worldwide citation)

Spinal alignment apparatus includes bodies which connect to vertebra to be aligned, and elongated elements that connect to the bodies. The elements are adjustable relative to the bodies in multiple dimensions, with locking mechanisms that allow the alignment to proceed in an orderly fashion until a ...


15
Robert S Howland: Spine fixation system. Advanced Spine Fixation Systems Incorporated, Beehler & Pavitt, July 9, 1991: US05030220 (355 worldwide citation)

An implantable spinal fixation system includes a cancellous bone screw, such as a pedicle screw, carrying an improved saddle assembly, secured in place by a nut and which includes a simple and effective locking mechanism including a plurality of fingers which contacts each of the upper half saddle a ...


16
Yves Crozet, Gregory Martin: Slotted head pedicle screw assembly. Stryker Spine, Lerner David Littenberg Krumholz & Mentlik, April 29, 2003: US06554834 (351 worldwide citation)

A pedicle screw assembly includes a fastener having an expandable head. The expandable head has an outer surface including a convex portion, a recess having an inner surface and defining an inner dimension, and at least one slot extending between the inner and outer surfaces thereof. The assembly al ...


17
Fridolin Schl├Ąpfer, Martin Hess: Device for connecting a longitudinal support with a pedicle screw. Synthes, Pennie & Edmonds, June 19, 2001: US06248105 (329 worldwide citation)

The invention relates to a device for connecting a longitudinal rod with a bone anchoring element, such as a pedicle screw, thereby forming a system for fixation of the spine. The device includes a connecting member having upper and lower ends, a bore hole which is open at least towards the lower en ...


18
Greg Martin, Yves Crozet, William J Kelly: Pedicle screw assembly. Stryker Spine, Lerner David Littenberg Krumholz & Mentlik, December 3, 2002: US06488681 (323 worldwide citation)

A stabilizing assembly includes a fastener having an upper end and a lower end, a head at the upper end, and at least one anchoring element extending between the upper and lower ends. The head includes a center, an underside including a first radial surface and a top side including a second radial s ...


19
Thomas T Haider: Pedicle screw for osteosynthesis. Harold L Jackson, May 20, 2003: US06565567 (322 worldwide citation)

A pedicle screw assembly for use with a rod for the immobilization of bone segments. The assembly is composed of a screw, a polyaxial housing for receiving the screw, a washer, a set screw, and a cup-shaped cap. The lower portion of the housing terminates in a reduced cross-sectional area, which eng ...


20
Michael F Hoey, Corbett W Stone, Kevin Foley: Tissue discrimination and applications in medical procedures. Nu Vasive, Jonathan Spangler, July 6, 2004: US06760616 (316 worldwide citation)

A method and system for discriminating tissue types, controlling the level of therapy to tissue, and determining the health of a known tissue by measuring the characteristics an electrical signal applied to conductive element located within or by the tissue. Additionally, the method and system may b ...