Low profile plate

Patent metadata

Field	Value
Publication number	US-9526630-B2
Application number	US-201514963302-A
Country	US
Kind code	B2
Filing date	Dec 9, 2015
Priority date	Sep 16, 2011
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

The present application generally relates to orthopedic systems, and in particular, to systems including independent plates and spacers. A plating system can include a spacer and a plate that is independent from the spacer. A number of locking mechanisms can be provided to secure the plate to the spacer. In some cases, the spacer includes a pair of notches that extend on an outer surface of the spacer. The plate can include a pair of lateral extensions that can engage the notches to secure the plate to the spacer. In other cases, the spacer includes an opening including a pair of inlets. The plate can include an enclosed posterior extension that can be received in the pair of inlets to secure the plate to the spacer.

First claim

We claim:

1. A spinal system comprising: a spacer for inserting into an intervertebral space, the spacer including:
an upper surface,
a lower surface, and
an opening that extends between the upper surface to the lower surface, and
a projection that extends between the upper surface to the lower surface along and outwardly from an outer sidewall of the spacer;
a plate for abutting the spacer, the plate including:
a plate body,
a first opening formed in the plate body for receiving a first bone screw, wherein the first opening is angled in an upward direction;
a second opening formed in the plate body for receiving a second bone screw, wherein the second opening is angled in a downward direction;
a set screw for preventing back-out of both the first and the second bone screws, wherein the set screw has a first position whereby the first and second bone screws can be inserted past the set screw and into the first and second openings and a second position following rotation of the set screw whereby the first and second bone screws are prevented from backing out by the set screw, and
a pair of extensions that extend from the plate body, wherein the extensions are configured to engage the spacer, wherein one of the extensions is received completely around a periphery of the projection on the outer sidewall of the spacer to secure the plate to the spacer;
a first bone screw for inserting into the first opening in the plate body, wherein the first bone screw is configured to be inserted into a first vertebral body; and
a second bone screw for inserting into the second opening in the plate body, wherein the second bone screw is configured to be inserted into a second vertebral body.

2. The system of claim 1 , wherein the spacer is a C-shaped spacer.

3. The system of claim 1 , wherein the spacer comprises an upper chamfer and a lower chamfer.

4. The system of claim 1 , wherein the pair of extensions that extend from the plate body extend around the outer surface of the spacer.

5. The system of claim 4 , wherein the pair of extensions include inward protrusions for inserting into outer sidewalls of the spacer.

6. The system of claim 5 , wherein the spacer includes a pair of notches that correspond to the pair of extension of the plate to form a first locking mechanism between the plate and the spacer.

7. The system of claim 1 , wherein the opening in the spacer is bounded by at least one convex surface.

8. A spinal system comprising: a spacer for inserting into an intervertebral space, the spacer including:
an upper surface,
a lower surface,
an opening that extends between the upper surface to the lower surface, and
a projection that extends between the upper surface to the lower surface along and outwardly from an outer sidewall of the spacer;
a plate for abutting the spacer, the plate including:
a plate body,
a first opening formed in the plate body for receiving a first bone screw, wherein the first opening is angled in an upward direction,
a second opening formed in the plate body for receiving a second bone screw, wherein the second opening is angled in a downward direction,
a set screw for preventing back out of at least one of the first and second bone screws, and
a pair of extensions that extend from the plate body, wherein the extensions are configured to engage the spacer, and wherein each extension includes a window that extends along a length of the extension, wherein one of the extensions is received completely around a periphery of the projection on the outer sidewall of the spacer to secure the plate to the spacer;
a first bone screw for inserting into the first opening in the plate body, wherein the first bone screw is configured to be inserted into a first vertebral body; and
a second bone screw for inserting into the second opening in the plate body, wherein the second bone screw is configured to be inserted into a second vertebral body.

9. The system of claim 8 , wherein the pair of extensions of the plate comprise lateral extensions that engage an outer surface of the spacer.

10. The system of claim 8 , wherein the pair of extensions of the plate comprise inward protrusions that extend into notches formed on an outer surface of the spacer.

11. The system of claim 8 , wherein the set screw is configured to prevent back-out of both the first and the second bone screws in the plate.

12. The system of claim 11 , wherein upon rotation of the set screw, the set screw abuts side surfaces of heads of the first and second bone screws.

13. The system of claim 8 , wherein the leading end of the spacer is tapered.

14. A spinal system comprising:
a spacer for inserting into an intervertebral space, wherein the spacer is formed of a first member attached to a second member, wherein the spacer comprises an upper surface and a lower surface, wherein a projection extends between the upper surface to the lower surface along and outwardly an outer sidewall of the spacer;
a plate for abutting the spacer, the plate including:
a plate body,
a first opening formed in the plate body for receiving a first bone screw;
a second opening formed in the plate body for receiving a second bone screw; and
a pair of extensions that extend from the plate body, wherein the extensions are configured to engage the spacer, and wherein each extension includes a window that extends along a length of the extension, wherein one of the extensions is received completely around a periphery of the projection on the outer sidewall of the spacer to secure the plate to the spacer;
a first bone screw for inserting into the first opening in the plate body, wherein the first bone screw is configured to be inserted into a first vertebral body; and
a second bone screw for inserting into the second opening in the plate body, wherein the second bone screw is configured to be inserted into a second vertebral body different from the vertebral body.

15. The system of claim 14 , wherein the spacer comprises an allograft spacer.

16. The system of claim of claim 15 , wherein the allograft spacer includes at least one chamfer for accommodating either the first bone screw or the second bone screw.

17. The system of claim 14 , wherein the spacer comprises a blind pin hole for receiving a pin that secures the first member and the second member.

18. The system of claim 14 , wherein the first member is attached to the second member via a pin made of bone.

Assignees

• Globus Medical Inc

Inventors

• Klimek Jennifer S
• Lawson Stephan
• Petersheim Samuel
• Cianfrani Jason
• Rosen Kyle

Classifications

• A61F2002/30845

  with cutting edges · CPC title

• A61F2002/30593

  hollow · CPC title

• A61F2002/30828

  parallel · CPC title

• A61F2002/30836

  knurled · CPC title

• A61F2002/308

  oblong · CPC title