Device and method for deployment of an anchoring device for intervertebral spinal fusion

Patent metadata

Field	Value
Publication number	US-10433980-B2
Application number	US-201715417331-A
Country	US
Kind code	B2
Filing date	Jan 27, 2017
Priority date	May 21, 2015
Publication date	Oct 8, 2019
Grant date	Oct 8, 2019

Abstract

A device and methods for intervertebral spinal fusion of adjacent intervertebral bodies. An intervertebral spacer is positioned within a narrow disc space between adjacent intervertebral bodies of a patient. The spacer is arranged with upper and lower guides. The guides are adapted to simultaneously guide the deployment of upper and lower anchors of an anchoring device into their respective intervertebral bodies. The spacer is also adapted to lock the upper and lower anchors to the spacer in the deployed position.

First claim

What is claimed is:

1. An implantable system comprising:
a spacer comprising a superior surface, an inferior surface, a first side surface, a second side surface, a distal portion and a proximal portion, wherein the spacer comprises a through hole that extends through the superior surface to the inferior surface and a slot;
an upper anchor;
a lower anchor; and
a carrier attached to the upper anchor and the lower anchor, wherein as the carrier is received in the slot inner sidewalls of the spacer splay open to receive the carrier therein.

2. The system of claim 1 , wherein the carrier comprises an upper post and a lower post.

3. The system of claim 2 , wherein the upper anchor comprises a carrier hole for attachment to the upper post of the carrier and the lower anchor comprises a carrier hole for attachment to the lower post of the carrier.

4. The system of claim 1 , wherein the carrier comprises a front end, a rear end and a threaded portion between the front end and the rear end.

5. The system of claim 4 , further comprising a revision tool having inner threads for engaging the threaded portion of the carrier.

6. The system of claim 1 , wherein the spacer further comprises a pair of upper recesses and a pair of lower recesses.

7. The system of claim 6 , wherein the pair of upper recesses of the spacer is configured to guide the upper anchor and the pair of lower recesses of the spacer is configured to guide the lower anchor.

8. The system of claim 1 , wherein translation of the carrier causes deployment of the upper anchor above a body of the spacer and deployment of the lower anchor below the body of the spacer.

9. The system of claim 8 , wherein translation of the carrier causes the upper anchor to be guided along upper recesses formed in the spacer and the lower anchor to be guided along lower recesses formed in the spacer.

10. An implantable system comprising:
a spacer comprising a superior surface, an inferior surface, a first side surface, a second side surface, a distal portion and a proximal portion, wherein the spacer comprises a through hole that extends through the superior surface to the inferior surface and a slot, wherein the slot is bordered by splayable sidewalls;
an upper anchor;
a lower anchor; and
a carrier attached to the upper anchor and the lower anchor, wherein as the carrier is received in the slot the splayable sidewalls open to receive the carrier therein.

11. The system of claim 10 , wherein the carrier is capable of translating along the slot of the spacer.

12. The system of claim 11 , wherein translation of the carrier causes the upper anchor to be deployed above a body of the spacer and the lower anchor to be deployed below the body of the spacer.

13. The system of claim 12 , wherein the spacer comprises a pair of upper recesses and a pair of lower recesses, wherein the upper anchor travels along the upper recesses and the lower anchor travels along the lower recesses.

14. The system of claim 10 , wherein the spacer comprises a pair of protruding locking surfaces.

15. The system of claim 14 , wherein the carrier comprises a pair of initial locking surfaces.

16. The system of claim 15 , wherein the carrier is capable of translating along the slot of the spacer such that during translation, the pair of initial locking surfaces of the carrier pass the pair of protruding locking surfaces of the spacer, thereby preventing backout of the carrier from the spacer.

17. The system of claim 10 , wherein the spacer comprises a pair of upper recesses that are curved and a pair of lower recesses that are curved.

18. The system of claim 17 , wherein the pair of upper recesses guide the upper anchor and the pair of lower recesses guide the lower anchor.

19. The system of claim 18 , further comprising a revision instrument capable of grasping the carrier.

Assignees

• Globus Medical Inc

Inventors

• Ashleigh Michael
• Cox Shawn

Classifications

• A61F2002/30331

  made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit · CPC title

• A61F2/4611

  of spinal prostheses · CPC title

• A61F2/30749

  Fixation appliances for connecting prostheses to the body · 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

• A61F2002/30904

  serrated profile, i.e. saw-toothed · CPC title