Spine implant with a deflection rod system including a deflection limiting shield associated with a bone screw and method
AssigneeSpartek Medical, Inc.
InventorsSteven T. Mitchell, Charles J. Winslow, John J. Flynn, James F. Zucherman, Ken Y. Hsu, Donald L. Cain, Henry A. Klyce, H. Adam R. Klyce
Life of this patent
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Abstract
A dynamic stabilization, motion preservation spinal implant system includes a deflection rod system implant. The system is modular so that various constructs and configurations can be created and customized to a patient.
Claims38
An implant adapted to be implanted in a spine comprising:
- a deflection rod system including a deflection rod;
- a bone anchor with a cavity, which cavity has an outer surface;
- said deflection rod system mounted in said bone anchor cavity;
- and
- a bone anchor thread which extends along said bone anchor and over the outer surface of said bone anchor cavity such that at least a portion of said deflection rod system is adapted to be implanted beneath the surface of a bone.
An implant adapted to be implanted in a spine comprising:
- a deflection rod system including a deflection rod;
- a bone anchor with a cavity, which cavity has an outer surface;
- and
- a bone anchor thread which extends along said bone anchor and over the outer surface of said bone anchor cavity such that at least a portion of said deflection rod system is implanted beneath the surface of a bone;
- and
- said deflection rod comprised of a super elastic material;
- said deflection rod system being co-axial with said bone anchor;
- and
- a connector rod movably secured to said deflection rod.
An implant adapted to be implanted in a spine comprising:
- a deflection rod system including a deflection rod;
- a bone anchor with a cavity, which cavity has an outer surface;
- said deflection rod system mounted in said bone anchor cavity;
- and
- said deflection rod of said deflection rod system is an inner rod and said deflection rod system includes an outer shell located about said inner rod and a shield with a shield cavity with said inner rod and said outer shell located in said shield cavity, said shield cavity limiting the deflection of said inner rod and said outer shell.
An implant adapted to be implanted in a spine comprising:
- a deflection rod system including a deflection rod;
- a bone anchor with a cavity, which cavity has an outer surface;
- said deflection rod system mounted in said bone anchor cavity;
- and
- a threaded shaft extending from said deflection rod system and said bone anchor cavity including a thread that mates with said threaded shaft of said deflection rod system in order to mount said deflection rod system in said bone anchor cavity.
An implant adapted to be implanted in a spine comprising:
- a deflection rod system including a deflection rod;
- a bone anchor with a cavity, which cavity has an outer surface;
- said deflection rod system mounted in said bone anchor cavity;
- and
- said deflection rod of said deflection rod system is an inner rod and said deflection rod system includes an outer shell located about said inner rod and wherein said inner rod and outer shell are mounted in said bone anchor cavity and said bone anchor cavity limits the deflection of said inner rod and said outer shell.
An implant adapted to be implanted in a spine comprising:
- a deflection rod system including a deflection rod;
- a bone anchor with a cavity, which cavity has an outer surface;
- said deflection rod system mounted in said bone anchor cavity;
- and
- wherein said deflection rod of said deflection rod system is an inner rod and said deflection rod system includes an outer shell located about said inner rod and a shield with a shield cavity with said inner rod and said outer shell located in said shield cavity, said shield cavity limiting the deflection of said inner rod and said outer shell;
- and
- a threaded shaft extending from said shield of said deflection rod system and said bone anchor cavity including a thread that mates with said threaded shaft of said deflection rod system in order to mount said deflection rod system in said bone anchor cavity.
Dependencies are inferred from the claim text.