Mesh spacer hybrid

Patent metadata

Field	Value
Publication number	US-12303397-B2
Application number	US-202318528766-A
Country	US
Kind code	B2
Filing date	Dec 4, 2023
Priority date	Jul 25, 2012
Publication date	May 20, 2025
Grant date	May 20, 2025

Abstract

A method of placing an implant for intervertebral fusion between adjacent vertebral bodies in a patient includes inserting the implant in a space between the adjacent vertebral bodies such that both a first intervertebral spacer body and a second intervertebral spacer body contact each of the adjacent vertebral bodies. The first intervertebral spacer body is spaced apart from the second intervertebral spacer body. An expandable container portion of the implant disposed between the first intervertebral spacer body and the second intervertebral spacer body is filled with fill material such that the expandable container expands to contact each of the adjacent vertebral bodies.

First claim

What is claimed is:

1. A method of placing an implant for intervertebral fusion between adjacent vertebral bodies in a patient, wherein the implant comprises a first intervertebral spacer body, a second intervertebral spacer body spaced apart from the first spacer body and an expandable container disposed between the first intervertebral spacer body and the second intervertebral spacer body, and wherein the first spacer body defines a height dimension perpendicular to respective endplates of the adjacent vertebral bodies, the method comprising:
inserting the implant in a space between the adjacent vertebral bodies so that the implant is oriented such that respective opposing surfaces of the first intervertebral spacer body and the second intervertebral spacer body respectively contacts both of the adjacent vertebral bodies simultaneously, wherein the first intervertebral spacer body has a non-adjustable fixed height; and
filling the expandable container with fill material such that the expandable container expands to mutually contact both of the adjacent vertebral bodies.

2. The method of claim 1 , wherein the step of filling the expandable container includes filling the expandable container with bone graft material.

3. The method of claim 1 , wherein the step of filling the expandable container includes introducing the fill material through a fill port.

4. The method of claim 1 , wherein the step of filling the expandable container includes introducing the fill material through a fill port defined through the first intervertebral spacer body.

5. The method of claim 1 , wherein the step of filling the expandable container includes:
introducing the fill material through a fill port defined through the first intervertebral spacer body; and
passing the fill material through a connecting rod to communicate the fill material into the expandable container,
wherein the connecting rod is coupled to the first intervertebral spacer body and extends to the second intervertebral spacer body.

6. The method of claim 1 , wherein the step of filling the expandable container with fill material moves the first intervertebral spacer body and the second spacer body apart from one another in a direction parallel to respective endplates of the adjacent vertebral bodies.

7. The method of claim 1 , wherein the expandable container comprises a mesh material.

8. The method of claim 1 , wherein the expandable container is porous.

9. The method of claim 1 , wherein the step of inserting the implant in a space between the adjacent vertebral bodies is performed via minimally invasive surgical (MIS) techniques.

10. The method of claim 1 , further comprising engaging at least one of the adjacent vertebral bodies with an outward projection defined on at least one of the first intervertebral spacer body and the second intervertebral spacer body.

11. The method of claim 1 , wherein the implant is inserted between the adjacent vertebral bodies in a direction parallel to respective opposing end plates of the adjacent vertebral bodies.

12. The method of claim 1 , further comprising defining a fill opening into the expandable implant through at least one of the first intervertebral spacer body and the second intervertebral spacer body.

13. The method of claim 1 , further comprising connecting the first intervertebral spacer body to the second intervertebral spacer body via a connecting rod spanning therebetween, wherein the connecting rod passes through the expandable container.

14. The method of claim 13 , wherein the connecting rod includes at least one fill opening in communication with an interior of the container.

15. The method of claim 1 , further comprising angling the first spacer body with respect to the second spacer body in a plane defined parallel to opposing end plates of the respective adjacent vertebral bodies.

16. The method of claim 1 , wherein the expandable container comprises of a conformable material.

17. The method of claim 1 , further comprising engaging at least one of the adjacent vertebral bodies with a textured surface defined on side of at least one of the first intervertebral spacer body and second intervertebral spacer body that faces the adjacent vertebral body being engaged.

18. The method of claim 1 , wherein the expandable container portion is filled with fill material sufficiently to distract the adjacent vertebral bodies.

19. The method of claim 1 , wherein the step of filling the expandable container portion with fill material moves the first intervertebral spacer body and the second spacer body apart from one another.

20. The method of claim 1 , further comprising engaging at least one of adjacent vertebral bodies with a projection extending outward from at least one of the respective opposing surfaces of the first intervertebral spacer body and the second intervertebral spacer body.

Assignees

• Spineology Inc

Inventors

• Wolfe Steve
• Becker Bryan
• Walnofer Tim
• Boylan Clint
• Mcphillips Dan
• Wang Michael
• Kuhns Craig
• Ganske Garrett

Classifications

• A61F2002/443

  having two transversal endplates and at least one intermediate component · CPC title

• A61F2002/30329

  Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements · CPC title

• A61F2002/30004

  the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis · CPC title

• A61F2/446

  having a circular or elliptical cross-section substantially parallel to the axis of the spine, e.g. cylinders or frustocones · CPC title

• A61F2/2846

  Support means for bone substitute or for bone graft implants, e.g. membranes or plates for covering bone defects (nets or sleeves applied to surface of endoprostheses A61F2/30907; bone plates A61B17/80; bone regeneration in dental surgery A61C8/0006) · CPC title