Orthopedic fixation devices and methods of installation thereof

Patent metadata

Field	Value
Publication number	US-9186187-B2
Application number	US-201414221788-A
Country	US
Kind code	B2
Filing date	Mar 21, 2014
Priority date	Jul 15, 2011
Publication date	Nov 17, 2015
Grant date	Nov 17, 2015

Abstract

The present invention is generally directed to orthopedic fixation devices that comprise a coupling element and a bone fastener, whereby the bone fastener can be loaded into the coupling element through the bottom of a bore in the coupling element. The orthopedic fixation devices described herein can include modular locking clamp assemblies that can be fixed onto fasteners that are already implanted in bone. The modular locking clamp assemblies can include polyaxial locking clamp assemblies, as well as monoaxial locking clamp assemblies.

First claim

What is claimed is:

1. A method of spinal surgery comprising:
inserting a male hook component onto a bone member, wherein the male hook component comprises a rod member;
operably connecting a female hook component to the male hook component by sliding the female hook component on the rod member, wherein the female hook component comprises a head member;
tightening the female hook component onto the male hook component to secure the female hook component to the male hook component; and
after tightening the female hook component onto the male hook component, inserting a modular tulip assembly on top of the head member of the female hook component.

2. The method of claim 1 , wherein the female hook component is translatable and rotatable relative to the male hook component.

3. The method of claim 1 , wherein the head member of the female hook component includes a set screw within a body of the head member for tightening the female hook component onto the male hook component.

4. The method of claim 1 , wherein the head member of the female hook component is a set screw for tightening the female hook component onto the male hook component.

5. The method of claim 1 , wherein the female hook component comprises a hook member that is laterally offset from the head member.

6. The method of claim 1 , wherein the female hook component comprises a hook component that is directly below the head member.

7. The method of claim 1 , wherein the female hook component comprises a head member that is at an angle.

8. The method of claim 1 , wherein the male hook component includes a rod member that is at least three times as long as a length of the female hook component.

9. The method of claim 1 , wherein the modular tulip assembly is configured to receive a rod to assist in spinal stabilization.

10. The method of claim 1 , further comprising inserting one or more pedicle screws such that the hook components and the one or more pedicle screws are part of a stabilization system to assist in spinal fusion.

11. A method of spinal surgery comprising:
inserting a male hook component onto a bone member;
operably connecting a female hook component to the male hook component, wherein the female hook component includes a head member for receiving a modular tulip assembly; and
inserting a bone fastener into a bone member, wherein the bone fastener includes a head,
wherein the head member of the female hook component and the head of the bone fastener are each configured to receive a modular tulip assembly, wherein the same modular tulip assembly can be applied to either the female hook component or the bone fastener.

12. The method of claim 11 , wherein the head member of the female hook component and the head of the bone fastener have the same shape and size.

13. The method of claim 11 , wherein the head member of the female hook component and the head of the bone fastener have surface texturing.

14. The method of claim 11 , wherein the male hook component comprises a rod member, and the female hook component can translate along the rod member.

15. The method of claim 14 , wherein the rod member has a length that is greater than three times the length of the female hook component.

16. The method of claim 11 , wherein the modular tulip assembly comprises a polyaxial tulip assembly.

17. The method of claim 11 , wherein the bone fastener is inserted into a pedicle.

18. The method of claim 11 , wherein the modular tulip assembly is configured to receive a rod therethrough.

19. The method of claim 11 , wherein the head member of the female hook component is at an angle.

20. The method of claim 11 , wherein the female hook component comprises a hook member, wherein the hook member is laterally offset from the head member.

Assignees

• Globus Medical Inc
• Globus Medical Inc

Inventors

• Mishra Devjeet

Classifications

• A61B17/7047

  Clamps comprising opposed elements which grasp one vertebra between them · CPC title

• A61B17/7011

  Longitudinal element being non-straight, e.g. curved, angled or branched (adjustable length longitudinal elements A61B17/7014; A61B17/7019 takes precedence, e.g. coil springs) · CPC title

• A61B17/7035

  Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other · CPC title

• A61B17/7001

  Screws or hooks combined with longitudinal elements which do not contact vertebrae (A61B17/7058 takes precedence) · CPC title

• A61B17/7037

  wherein pivoting is blocked when the rod is clamped · CPC title