Dynamic spine stabilizers

Patent metadata

Field	Value
Publication number	US-9907575-B2
Application number	US-201615079082-A
Country	US
Kind code	B2
Filing date	Mar 24, 2016
Priority date	Dec 11, 2009
Publication date	Mar 6, 2018
Grant date	Mar 6, 2018

Abstract

Treatment of spinal irregularities, including, in one or more embodiments, dynamic spine stabilizers and systems that can be used to stabilize one or more motion segments in a patient's spine. Spine stabilization systems may comprise a first bone fastener configured to attach the spine stabilization system to a first vertebra. Spine stabilization systems further may comprise a second bone fastener configured to attach the spine stabilization system to a second vertebra. Spine stabilization systems further may comprise a dynamic spine stabilizer configured to connect the first bone fastener and the second bone fastener with at least some relative movement between the first bone fastener and the second bone fastener.

First claim

What is claimed is:

1. A surgical method comprising:
inserting a spine stabilization system into a patient, wherein the spine stabilization system comprises:
a first bone fastener configured to attach the spine stabilization system to a first vertebra;
a second bone fastener configured to attach the spine stabilization system to a second vertebra adjacent to the first vertebra;
a dynamic spine stabilizer operably connected to the first bone fastener and the second bone fastener, wherein the dynamic spine stabilizer is capable of at least some movement between the first bone fastener and the second bone fastener and is configured to allow movement of the first vertebra relative to the second vertebra after the spine stabilization system has been secured to the first vertebra and the second vertebra
wherein the dynamic spine stabilizer is slidable and rotatable.

2. The surgical method of claim 1 , wherein the dynamic spine stabilizer comprises a first lateral rod and a second lateral rod coupled by a cross member.

3. The surgical method of claim 2 , wherein the first lateral rod is received in the first bone fastener and the second lateral rod is received in the second bone fastener.

4. The surgical method of claim 2 , wherein the first lateral rod is top loaded into the first bone fastener and the second lateral rod is top loaded into the second fastener.

5. The surgical method of claim 2 , wherein the dynamic spine stabilizer comprises a translatable end and a rod-locking end.

6. The surgical method of claim 5 , wherein the translatable end comprises a yoke that is disposed over the first lateral rod.

7. The surgical method of claim 6 , wherein the spine stabilization system further comprises a first clamp placed on the first lateral rod, wherein the yoke is disposed between the first bone fastener and the first clamp.

8. The surgical method of claim 7 , wherein the translatable end is freely movable between the first bone fastener and the first clamp.

9. The surgical method of claim 5 , wherein the rod-locking end comprises a second clamp having a seat for receiving the second lateral rod, wherein the rod-locking end further comprises a screw to lock opposing surfaces of the second clamp onto the second lateral rod.

10. The surgical method of claim 9 , wherein the cross member is tapered.

11. A surgical method comprising:
inserting a spine stabilization system into a patient, wherein the spine stabilization system comprises:
a first bone fastener configured to attach the spine stabilization system to a first vertebra;
a second bone fastener configured to attach the spine stabilization system to a second vertebra adjacent to the first vertebra;
a dynamic spine stabilizer operably connected to the first bone fastener and the second bone fastener, wherein the dynamic spine stabilizer comprises a first lateral rod and a second lateral rod connected by a cross member and wherein the cross member is configured to allow movement of the first vertebra relative to the second vertebra after the spine stabilization system has been secured to the first vertebra and the second vertebra
wherein the dynamic spine stabilizer is slidable and rotatable.

12. The surgical method of claim 11 , wherein the dynamic spine stabilizer comprises a translatable end and a rod-locking end.

13. The surgical method of claim 12 , wherein the translatable end is attachable to the first lateral rod and the rod-locking end is attachable to the second lateral rod.

14. The surgical method of claim 13 , wherein in a final construct, the translatable end is moveable relative to the first lateral rod and the rod-locking end is fixed relative to the second lateral rod.

15. The surgical method of claim 13 , wherein the spine stabilization system further comprises a first clamp placed on the first lateral rod.

16. The surgical method of claim 15 , wherein the translatable end is positioned between the first clamp and the first bone fastener.

17. The surgical method of claim 11 , wherein the first lateral rod is top loaded into the first fastener and the second lateral rod is top loaded into the second fastener.

18. The surgical method of claim 17 , wherein the dynamic spine stabilizer further comprises a translatable end and a rod-locking end.

19. The surgical method of claim 18 , wherein the translatable end is attachable to the first lateral rod and the rod-locking end is attachable to the second lateral rod.

20. The surgical method of claim 19 , wherein in a final construct, the translatable end is moveable relative to the first lateral rod and the rod-locking end is fixed relative to the second lateral rod.

Assignees

• Globus Medical Inc

Inventors

• Black michael e

Classifications

• A61B17/7008

  with parts of, or attached to, the longitudinal elements, bearing against an outside of the screw or hook heads, e.g. nuts on threaded rods (A61B17/7007 takes precedence) · CPC title

• A61B17/7026

  with a part that is flexible due to its form · 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

• A61B17/702

  having a core or insert, and a sleeve, whereby a screw or hook can move along the core or in the sleeve · CPC title

• A61B17/7005 Primary

  Parts of the longitudinal elements, e.g. their ends, being specially adapted to fit in the screw or hook heads · CPC title