Processing

Please wait...

Settings

Settings

Goto Application

1. WO2006101737 - APPARATUS AND METHODS FOR SPINAL IMPLANT WITH DYNAMIC STABILIZATION SYSTEM

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

Claims
1. An implant, comprising:
a first rod, comprising a non-helical, multi-curve flexible portion coupled to a respective rigid portion at each end; and
a plurality of fasteners coupled to the first rod, the plurality of fasteners
configured to fasten the first rod to vertebrae.

2. The implant according to claim 1, wherein the plurality of fasteners comprises a plurality of pedicle screws configured to couple the first rod to vertebrae.

3. The implant according to claim 1, wherein the first rod is preloaded before being fastened to the vertebrae.

4. The implant according to claim 1, further comprising a second rod adjacent to the first rod, wherein the second rod comprises a flexible portion.

5. The implant according to claim 1, further comprising a second rod adjacent to the first rod, wherein the second rod comprises a rigid rod.

6. The implant according to claim 1, further comprising a second rod coupled to the first rod, wherein the second rod comprises a rigid rod or a flexible rod.

7. The implant according to claim 6, further comprising a sleeve, wherein the sleeve couples the first rod to the second rod.

8. The implant according to claim 1, wherein the implant tends to limit shear and torsion movements in the spine, and wherein limiting the shear and torsion movements tends to protect the nucleus pulposus and anulus fibrosis.

9. The implant according to claim 2, wherein the rigid portions extend outwardly from the flexible portion.

10. The implant according to claim 2, wherein the rigid portions extend inwardly from the flexible portion.

11. A system for supporting vertebral bodies in a spine, comprising:
an implant rod, comprising: a non-helical serpentine spring portion, having first and second ends;
and
first and second rigid portions coupled, respectively, to the first and
second ends of the spring portion.

12. The system according to claim 11, wherein the implant tends to support flexion-extension of the spine, and wherein the implant tends to limit shear and torsion movements in the spine.

13. The system according to claim 11, wherein limiting the shear and torsion movements in the spine tends to protect the nucleus pulposus and anulus fibrosis, and allows healing of the spine.

14. The system according to claim 11, further comprising first and second fasteners configured to couple the implant rod to a pair of vertebrae; wherein the first rigid portion couples to the first fastener, and wherein the second rigid portion couples to the second fastener.

15. The system according to claim 14, wherein the first fastener comprises a first screw configured to couple to a first pedicle in the spine, and wherein the second fastener comprises a second screw configured to couple to a second pedicle in the spine.

16. The system according to claim 11, wherein the first rigid portion comprises at least one orientation mechanism, and wherein each orientation mechanism is configured to facilitate orienting the spring in a desired direction.

17. The system according to claim 16, wherein each orientation mechanism comprises a flat portion.

18. The system according to claim 16, wherein the implant rod further comprises:
a first transition portion coupled to the first end of the spring portion and to the first rigid portion; and
a second transition portion coupled to the second end of the spring portion and to the second rigid portion.

19. A method of producing a spinal implant, the method comprising forming an implant rod from a block of material, wherein the rod comprises a non-helical, multi-curve flexible portion coupled to first and second rigid portions.

20. The method according to claim 18, wherein the block of material comprises titanium Beta C.

20. The method according to claim 18, wherein the spinal implant comprises a multi-level implant.