SPINAL FUSION DEVICE

Abstract

A spinal fusion device abutting and fixed between adjacent vertebrae. The spinal fusion device includes a support frame. The support frame has a plurality of extending bodies, each radially extending from a center of the support frame. A predetermined gap exists between every two adjacent extending bodies, receiving a bone graft.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The invention can be more fully understood by reading the subsequent detailed description and examples with references made to the accompanying drawings, wherein:

FIG. 1A is a schematic perspective view of a spinal fusion device of the invention;

FIG. 1B is a schematic top view of FIG. 1A;

FIG. 1C is a schematic perspective view of the spinal fusion device of FIG. 1A combined with a bone graft;

FIG. 2A is a schematic perspective view of another spinal fusion device of the invention;

FIG. 2B is a schematic top view of FIG. 2A;

FIG. 3A is a schematic perspective view of yet another spinal fusion device of the invention;

FIG. 3B is a schematic top view of FIG. 3A;

FIG. 3C is a schematic perspective view of the spinal fusion device of FIG. 3A combined with a bone graft;

FIG. 4A is a schematic top view of still another spinal fusion device of the invention; and

FIG. 4B is a schematic top view of the spinal fusion device of FIG. 4A combined with a bone graft.

Claims

1. A spinal fusion device abutting and fixed between adjacent vertebrae, comprising a support frame comprising a plurality of extending bodies, each radially extending from a center of the support frame, wherein a predetermined gap exists between every two adjacent extending bodies, receiving a bone graft.

2. The spinal fusion device as claimed in claim 1, wherein the extending bodies are the same horizontal plane.

3. The spinal fusion device as claimed in claim 1, wherein the extending bodies have the same elevation.

4. The spinal fusion device as claimed in claim 1, wherein the length of the extending bodies radially extending from the center of the support frame is the same.

5. The spinal fusion device as claimed in claim 1, wherein the support frame further comprises an advance hole formed in one of the extending bodies.

6. The spinal fusion device as claimed in claim 5, wherein the advance hole comprises inner threads.

7. The spinal fusion device as claimed in claim 1, wherein the support frame further comprises a plurality of curved end portions respectively connected to the extending bodies.

8. The spinal fusion device as claimed in claim 7, wherein the support frame further comprises an advance hole formed on one of the curved end portions.

9. The spinal fusion device as claimed in claim 8, wherein the advance hole comprises inner threads.

10. The spinal fusion device as claimed in claim 1, wherein the support frame further comprises a plurality of flat end portions respectively connected to the extending bodies.

11. The spinal fusion device as claimed in claim 10, wherein the support frame further comprises an advance hole formed on one of the flat end portions.

12. The spinal fusion device as claimed in claim 11, wherein the advance hole comprises inner threads.

13. The spinal fusion device as claimed in claim 1, wherein the support frame further comprises a plurality of slip-proof protrusions formed on the surface thereof.

14. The spinal fusion device as claimed in claim 1, wherein the support frame further comprises a central through hole formed in the center thereof.

15. The spinal fusion device as claimed in claim 1, further comprising at least one positioning member disposed in the support frame.

16. The spinal fusion device as claimed in claim 15, wherein the positioning member comprises metal or a material through which X-rays cannot pass.