Standalone interbody implants

Patent metadata

Field	Value
Publication number	US-10179053-B2
Application number	US-201815954655-A
Country	US
Kind code	B2
Filing date	Apr 17, 2018
Priority date	May 15, 2014
Publication date	Jan 15, 2019
Grant date	Jan 15, 2019

Abstract

Stand-alone interbody fusion devices for engagement between adjacent vertebrae. The stand-alone interbody fusion devices may include a spacer or endplates and one or more inserts, members, or frames coupled to the spacer or endplates. The inserts, members, or frames may be configured and designed to provide the apertures which are designed to retain bone fasteners, such as screws or anchors, and secure the implant to the adjacent vertebrae.

First claim

What is claimed is:

1. An intervertebral implant for implantation in an intervertebral space between adjacent vertebrae, the implant comprising:
a frame having a front portion and a plurality of arms extending from the front portion and joined together to form a ring-like structure, the front portion at least partially defining a fastener aperture sized and dimensioned for receiving a fastener; and
at least one endplate including at least one outer surface having a contact area configured to engage adjacent vertebrae, the at least one endplate being affixed to the frame such that the at least one end plate contacts at least a portion of the plurality arms,
wherein the front portion of the frame includes at least one protrusion that is configured and dimensioned to fit into at least one corresponding recess formed in an interior surface of the at least one endplate,
wherein the frame includes a raised rear portion and the at least one endplate includes a plurality of endplates configured to be separated a lateral distance due to the raised rear portion.

2. The implant of claim 1 , wherein the front portion has a first height and the plurality of arms have a second height that is less than the first height.

3. The implant of claim 1 , wherein the raised rear portion is substantially flush with the outer surface of the at least one endplate.

4. The implant of claim 1 , wherein the at least one endplate includes a plurality of endplates configured to be separated a vertical distance due to a thickness of the plurality of arms.

5. The implant of claim 1 , wherein the at least one endplate defines at least one channel extending along an inner perimeter sized and configured to receive at least a portion of the plurality of arms.

6. The implant of claim 1 , wherein the frame includes at least one projection extending along a length of the plurality of arms and the at least one end plate defines at least one recess sized and configured to receive the at least one projection.

7. The implant of claim 1 , wherein the frame includes at least one post extending outwardly from the plurality of arms and the at least one endplate includes at least one opening sized and configured to receive the at least one post.

8. The implant of claim 1 , wherein the at least one endplate extends from an upper surface to a lower surface and completely surrounds at least one of the plurality of arms.

9. The implant of claim 1 , wherein the front portion comprises a front surface and at least one eyebrow, wherein the eyebrow projects past a superior surface, an inferior surface, or both surfaces of the at least one end plate, and the fastener aperture for receiving the fastener traverses the front surface of the frame at an angle divergent to a horizontal plane.

10. The implant of claim 1 , wherein the fastener is an anchor and/or a bone screw.

11. The implant of claim 1 , wherein the plurality of arms join together to form the ring-like structure having a central opening.

12. The implant of claim 1 , wherein the at least one endplate does not cover the front portion of the frame.

13. A stand-alone implant for implantation in a treated area of an intervertebral space between vertebral bodies of a spine, the implant comprising:
a frame including a front portion having a first end and a second end, a first arm extending orthogonally from the first end of the front portion, and a second arm extending orthogonally from the second end of the front portion, wherein the first and second arms join together at a rear portion to form a continuous ring-like body, and at least one hole traversing the front portion for receiving a fastener; and
at least one endplate secured to the frame such that the at least one endplate rests on at least one of the first and second arms, the at least one end plate forming a superior surface, an inferior surface, or both surfaces to form a contact area configured to engage adjacent vertebrae,
wherein the front portion of the frame includes at least one protrusion that is configured and dimensioned to fit into at least one corresponding recess formed in an interior surface of the at least one endplate,
wherein the frame includes a raised rear portion and the at least one endplate includes a plurality of endplates configured to be separated a lateral distance due to the raised rear portion.

14. The implant of claim 13 , wherein the implant defines an opening extending from the superior surface to the inferior surface of the implant configured to receive bone graft material.

15. The implant of claim 13 , wherein the at least one endplate defines at least one channel extending along an inner perimeter sized and configured to receive at least a portion of the plurality of arms, and the plurality of arms includes at least one projection extending along a length of the plurality of arms and the at least one end plate defines at least one recess sized and configured to receive the at least one projection.

16. The implant of claim 13 , wherein the frame includes at least one post extending outwardly from the plurality of arms and the at least one endplate includes at least one opening sized and configured to receive the at least one post.

17. An intervertebral implant for implantation in an intervertebral space between adjacent vertebrae, the implant comprising:
a frame having a front portion and a plurality of arms extending from the front portion and joined together to form a ring-like structure, the front portion at least partially defining a fastener aperture sized and dimensioned for receiving a fastener; and
at least one endplate including at least one outer surface having a contact area configured to engage adjacent vertebrae, the at least one endplate being affixed to the frame such that the at least one end plate contacts at least a portion of the plurality of arms,
wherein the endplate defines at least one channel extending along an inner perimeter sized and configured to receive at least a portion of the plurality of arms,
wherein the frame includes a raised rear portion and the at least one endplate includes a plurality of endplates configured to be separated a lateral distance due to the raised rear portion.

18. The implant of claim 17 , further including at least one post connecting the plurality of arms and the at least one endplate.

Assignees

• Globus Medical Inc

Inventors

• Zappacosta Jason
• Hunt Michael
• Martynova Veronika
• Gray Jason
• Seifert Jody
• Hansell Noah
• Paul David
• Padovani Nick

Classifications

• A61F2002/302

  toroidal, e.g. rings · CPC title

• A61F2002/30433

  using additional screws, bolts, dowels, rivets or washers e.g. connecting screws · CPC title

• A61F2/4455 Primary

  for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages (intervertebral discs A61F2/442) · CPC title

• A61F2002/30823

  having the shape of a reverse dovetail · CPC title

• A61F2002/30822

  Circumferential grooves · CPC title