Intervertebral spinal implant

Patent metadata

Field	Value
Publication number	US-10744003-B2
Application number	US-201916238136-A
Country	US
Kind code	B2
Filing date	Jan 2, 2019
Priority date	May 8, 2018
Publication date	Aug 18, 2020
Grant date	Aug 18, 2020

Abstract

An intervertebral implant for implantation in an intervertebral space between vertebrae. The implant includes a body extending from an upper surface to a lower surface. The body has a front end, a rear end and a pair of spaced apart first and second side walls extending between the front and rear walls such that an internal chamber is defined within the front and rear ends and the first and second walls. The body defines an outer perimeter and an inner perimeter extending about the internal chamber. At least one of the side walls is defined by an integral porous structure.

First claim

What is claimed is:

1. An intervertebral implant for implantation in an intervertebral space between vertebrae, the implant comprising:
a body extending from an upper surface to a lower surface, the body having a front end, a rear end and a pair of spaced apart first and second side walls extending between the front and rear ends such that an internal chamber is defined within the front and rear ends and the first and second side walls, the body defining an outer perimeter and an inner perimeter extending about the internal chamber, the body having a solid structure comprising a first outer rim, a first inner rim, a second outer rim, a second inner rim, a first and second plurality of cross struts, and a solid wall, the first outer n extending about the outer perimeter of the upper surface and the first inner rim extending about the inner perimeter of the upper surface, the second outer rim extending about the outer perimeter of the lower surface and the second inner rim extending about the inner perimeter of the lower surface, the first plurality of cross struts connecting the first outer rim to the first inner rim, the second plurality of cross struts connecting the second outer rim to the second inner rim, and the solid wall connecting the first plurality of cross struts to the second plurality of cross struts; and
a porous structure filling areas between the first and second plurality of cross struts and from the upper surface to the lower surface such that the solid wall is sandwiched in between the porous structure,
wherein the solid wall is positioned within a portion of one of the first and second plurality of cross struts.

2. The intervertebral implant of claim 1 , wherein the solid wall supports the first and second plurality of cross struts at a location between the first outer rim and the first inner rim.

3. The intervertebral implant of claim 1 , wherein the solid wall extends continuously between the first and second plurality of cross struts.

4. The intervertebral implant of claim 1 , wherein the solid wall is recessed a distance inward from the first and second side walls.

5. The intervertebral implant of claim 1 , wherein the solid wall has a thickness less than a thickness of the porous structure.

6. The intervertebral implant of claim 1 , wherein the solid wall extends substantially parallel to the first and second side walls.

7. The intervertebral implant of claim 1 , wherein the solid wall extends substantially perpendicular to at least one of the first and second plurality of cross struts.

8. The intervertebral implant of claim 1 , wherein the solid wall includes a straight section and a curved section, and the curved section mimics the front end of the implant.

9. The intervertebral implant of claim 1 , wherein the first and second side walls include the porous structure between the solid structure at the upper and lower surfaces.

10. The intervertebral implant of claim 1 , wherein the internal chamber is defined by the porous structure between the solid structure at the upper and lower surfaces.

11. The intervertebral implant of claim 1 , wherein at least one of the first and second plurality of cross struts defines a portion of a surface serration or tooth configured to engage with adjacent vertebrae.

12. The intervertebral implant of claim 1 , wherein the rear end is defined substantially by a solid wall.

13. An intervertebral implant for implantation in an intervertebral space between vertebrae, the implant comprising:
a body extending from an upper surface to a lower surface, the body having a front end, a rear end and a pair of spaced apart first and second side walls extending between the front and rear ends such that an internal chamber is defined within the front and rear ends and the first and second side walls, the body defining an outer perimeter and an inner perimeter extending about the internal chamber, the body having a solid structure comprising a first outer rim, a first inner rim, a second outer rim, a second inner rim, a first and second plurality of cross struts, and first and second solid walls, the first outer rim extending about the outer perimeter of the upper surface and the first inner rim extending about the inner perimeter of the upper surface, the second outer rim extending about the outer perimeter of the lower surface and the second inner rim extending about the inner perimeter of the lower surface, the first plurality of cross struts connecting the first outer rim to the first inner rim, the second plurality of cross struts connecting the second outer rim to the second inner rim, the first solid wall connecting the first plurality of cross struts to the second plurality of cross struts proximate the first side wall, and the second solid wall connecting the first plurality of cross struts to the second plurality of cross struts proximate the second side wall; and
a porous structure filling areas between the first and second plurality of cross struts and from the upper surface to the lower surface such that the first and second solid walls are sandwiched in between the porous structure
wherein the solid wall is positioned within a portion of one of the first and second plurality of cross struts.

14. The intervertebral implant of claim 13 , wherein the first and second solid walls support the first and second plurality of cross struts at locations between the first outer rim and the first inner rim.

15. The intervertebral implant of claim 13 , wherein the first and second solid walls extend continuously between the first and second plurality of cross struts.

16. The intervertebral implant of claim 13 , wherein the first and second solid walls are recessed a distance inward from the first and second side walls, respectively.

17. The intervertebral implant of claim 13 , wherein the first and second solid walls have a thickness less than a thickness of the porous structure.

18. The intervertebral implant of claim 13 , wherein the first and second solid walls extend substantially parallel to the first and second side walls.

19. The intervertebral implant of claim 13 , wherein the first and second solid walls extend substantially perpendicular to at least one of the first and second plurality of cross struts.

20. The intervertebral implant of claim 13 , wherein the first and second solid walls include a straight section and a curved section, and the curved sections mimic the front end of the implant.

Assignees

• Globus Medical Inc

Inventors

• Ryan Robert
• Flint Brian
• Miccio Mark
• Petersheim Samuel
• Brennan Tracy

Classifications

• A61F2/4465

  having a circular or kidney shaped cross-section substantially perpendicular to the axis of the spine · CPC title

• A61F2002/30841

  Sharp anchoring protrusions for impaction into the bone, e.g. sharp pins, spikes · CPC title

• A61F2002/30772

  Apertures or holes, e.g. of circular cross section · CPC title

• A61F2002/4627

  with linear motion along or rotating motion about the instrument axis or the implantation direction, e.g. telescopic, along a guiding rod, screwing inside the instrument · CPC title

• A61F2002/30604

  modular · CPC title