Spinal implant system and method

Patent metadata

Field	Value
Publication number	US-10828174-B2
Application number	US-201816124888-A
Country	US
Kind code	B2
Filing date	Sep 7, 2018
Priority date	Oct 7, 2013
Publication date	Nov 10, 2020
Grant date	Nov 10, 2020

Abstract

A spinal implant comprises an implant body extending between an anterior surface and a posterior surface. The implant body includes a first vertebral engaging surface and a second vertebral engaging surface. The implant body includes an outer surface that defines an oblique surface. A wall is connectable with the implant body and translatable relative to the oblique surface. Systems and methods are disclosed.

First claim

What is claimed is:

1. A spinal implant comprising:
an implant body extending along a longitudinal axis between opposite proximal and distal walls, the implant body comprising opposite anterior and posterior walls each extending from the proximal wall to the distal wall, the proximal wall comprising an outer surface extending at an oblique angle relative to the longitudinal axis, the outer surface defining an opening extending through an inner surface of the proximal wall and the outer surface, the opening having opposite first and second rounded ends, the opening having a uniform height from the first end to the second end;
a connecting member movably disposed within the opening; and
a plate coupled to the connecting member such that the plate is translatable along the outer surface.

2. The spinal implant recited in claim 1 , wherein the walls each extend between opposite first and second vertebral engaging surfaces, the implant body including an aperture extending through one of the vertebral engaging surfaces such that the aperture is in communication with the opening, a first portion of the connecting member being positioned in the aperture and a second portion of the connecting member being positioned in the opening.

3. The spinal implant recited in claim 2 , wherein the aperture has an arcuate configuration.

4. The spinal implant recited in claim 1 , wherein the walls each extend between opposite first and second vertebral engaging surfaces, the plate comprising a first end positioned above the first vertebral engaging surface and an opposite second end positioned below the second vertebral engaging surface.

5. The spinal implant recited in claim 1 , wherein the walls each extend between opposite first and second vertebral engaging surfaces, the first vertebral engaging surface and the second vertebral engaging surface being angled perpendicular to the longitudinal axis such that the anterior wall is taller than the posterior wall.

6. The spinal implant recited in claim 1 , wherein the plate comprises a plate body including spaced apart first and second screw holes, the plate comprising a back out prevention element positioned between the screw holes, the back out prevention element being rotatable relative to the plate body between a first position in which the back out prevention element does not overlap the screw holes and a second position in which the back out prevention element overlaps the screw holes.

7. The spinal implant recited in claim 1 , wherein the anterior and posterior walls each include a linear portion extending parallel to the longitudinal axis.

8. The spinal implant recited in claim 1 , wherein the posterior wall has a maximum length along the longitudinal axis from the distal wall to the proximal wall that is greater than that of the anterior wall.

9. A spinal implant comprising:
an implant body extending along a longitudinal axis between opposite proximal and distal walls, the implant body comprising opposite anterior and posterior walls each extending from the proximal wall to the distal wall, the proximal wall comprising an outer surface extending at an oblique angle relative to the longitudinal axis, the outer surface defining an opening extending through an inner surface of the proximal wall and the outer surface, the opening having opposite first and second rounded ends, the opening having a uniform height from the first end to the second end; and
a plate connected with the implant body by a connecting member disposed within the opening such that the plate is translatable along the outer surface.

10. The spinal implant recited in claim 9 , wherein the plate is rotatable relative to the implant body about the connecting member.

11. The spinal implant recited in claim 9 , wherein the plate comprises a plate body having first and second screw holes and an aperture positioned between the screw holes, the plate being rotatable relative to the implant body to move the plate between a first position in which the screw holes are aligned with the opening and a second position in which the screw holes are offset from the opening.

12. The spinal implant recited in claim 9 , wherein the plate comprises a plate body having first and second screw holes and an aperture positioned between the screw holes, the plate being rotatable relative to the implant body to move the plate between a first position in which the screw holes are aligned with the opening and a second position in which the first screw hole is positioned above the implant body and the second screw hole is positioned below the implant body.

13. The spinal implant recited in claim 9 , wherein the plate comprises a plate body including spaced apart first and second screw holes, the plate comprising a back out prevention element positioned between the screw holes, the back out prevention element being rotatable relative to the plate body between a first position in which arms of the back out prevention element do not overlap the screw holes and a second position in which the arms overlap the screw holes.

14. The spinal implant recited in claim 9 , wherein the posterior wall has a maximum length along the longitudinal axis from the distal wall to the proximal wall, the maximum length of the posterior wall being greater than a maximum length of the anterior wall from the distal wall to the proximal wall.

15. A method comprising:
positioning an implant body of a spinal implant such that top and bottom surfaces of the implant body engage adjacent first and second vertebrae, the implant body extending between an anterior surface and a posterior surface, the implant body including an oblique surface extending between the anterior and posterior surfaces, the oblique surface defining an opening extending through an inner surface of the implant body and the oblique surface, the opening having opposite first and second rounded ends, the opening having a uniform height from the first end to the second end, the spinal implant comprising a connecting member movably disposed in the opening and a plate coupled to the connecting member; and
selectively rotating the plate relative to the oblique surface about the connecting member.

16. The method recited in claim 15 , wherein selectively rotating the plate comprises rotating the plate between a first position in which screw holes of the plate are aligned with the opening and a second position in which the screw holes are offset from the opening.

17. The method recited in claim 15 , wherein selectively rotating the plate comprises rotating the plate between a first position in which first and second screw holes of the plate are aligned with the opening and a second position in which the first screw hole is positioned above the implant body and the second screw hole is positioned below the implant body.

18. The method recited in claim 15 , wherein the plate comprises a plate body including spaced apart first and second screw holes, the plate comprising a back out prevention element positioned between the screw holes, the method further comprising inserting screws through the screw holes and rotating the back out prevention element relative to the plate body from a first position in which arms of the back out prevention element do not overlap the screw holes to a second position in which the arms overlap the screw holes.

19. The method recited in claim 15 , wherein:
the opening defines a range of movement of the plate for selective translation between a lateral axis limit and an oblique axis limit of the implant body; and
the method furt

Assignees

• Warsaw Othopedic Inc
• Warsaw Orthopedic Inc

Inventors

• Melkent Anthony J
• Drochner Thomas E
• Hynes Richard A
• Duncan James P

Classifications

• A61F2002/30553

  for adjusting a position by translation along an axis · CPC title

• A61B17/8042

  the additional component being a cover over the screw head · CPC title

• A61F2002/30387

  Dovetail connection · CPC title

• A61F2/4465

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

• A61F2220/0016

  with sharp anchoring protrusions, e.g. barbs, pins, spikes · CPC title