Devices and methods for the treatment of spinal disorders

• US 6,579,291 B1
• Filed: 10/10/2000
• Issued: 06/17/2003
• Est. Priority Date: 10/10/2000
• Status: Active Grant

• Current Assignee: KRT Investors, Inc.
• Original Assignee: Spinalabs, LLC
• Inventors: Keith, Peter T., Atkinson, Robert E.
• Primary Examiner(s): Cohen, Lee
• Assistant Examiner(s): JOHNSON III, HENRY M
• Application Number:
  US09/685,401
• Time in Patent Office: 980 Days
• Field of Search: 606/61, 623/17.11, 623/17.16, 128/898
• US Class Current: 606/86.00A
• CPC Class Codes: A61B 17/70 Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
• CPC Class Codes: A61F 2002/4435 Support means or repair of the natural disc wall, i.e. annulus, e.g. using plates, membranes or meshes

Abstract

Devices and methods for treating a damaged intervertebral disc to reduce or eliminate associated back pain. The present invention provides disc reinforcement therapy (DRT) which involves implanting one or more reinforcement members in the annulus of the disc. The reinforcement members may be used to stabilize the annulus and/or compresses a portion of the annulus so as to reduce a bulge and/or close a fissure.

Claims

1. A method of treating an annulus of an intervertebral disc in a patient'"'"'s spine, the method comprising the steps of:

providing an elongate member;

positioning the elongate member in the annulus of the intervertebral disc such that the elongate member extends along a circumferential portion of the annulus; and

actively applying compression to the annulus to cause displacement of the annulus.

2. A method of treating an annulus in claim 1, wherein the elongate member is implanted in the annulus.

3. A method of treating an annulus in claim 1, wherein the elongate member is positioned in a portion of the annulus subjected to tissue removal.

4. A method of treating an annulus in claim 1, wherein the elongate member is positioned in a portion of the annulus not subjected to tissue removal.

5. A method of treating an annulus in claim 1, wherein the elongate member is positioned in a posterior portion of the annulus.

6. A method of treating an annulus in claim 1, wherein the elongate member extends substantially parallel to the circumferential portion of the annulus.

7. A method of treating an annulus in claim 1, wherein the elongate member extends across a fracture or fissure in the annulus, and wherein the step of applying compression to the annulus at least partially closes the fracture or fissure in the annulus.

8. A method of treating an annulus in claim 1, wherein the step of applying compression to the annulus causes the annulus to at least partially compress, and wherein the elongate member causes the annulus to remain at least partially compressed.

9. A method of treating an annulus in claim 1, wherein the step of applying compression to the annulus is performed by the elongate member during the positioning step.

10. A method of treating an annulus in claim 1, further comprising the steps of:

providing a tubular insertion tool having a proximal end and a distal end;

inserting the tubular insertion tool into the patient'"'"'s back such the proximal end is disposed outside the patient'"'"'s back and the distal end is disposed in the annulus; and

advancing the elongate member into the annulus utilizing the tubular insertion tool.

11. A method of treating an annulus in claim 1, further comprising the steps of:

providing a curved insertion tool having a proximal end and a curved distal end;

inserting the curved insertion tool into the patient'"'"'s back such the proximal end of the curved insertion tool is disposed outside the patient'"'"'s back and the curved distal end of the curved insertion tool is disposed in the annulus; and

advancing the elongate member into the annulus utilizing the curved insertion tool.

12. A method of treating an annulus in claim 1, wherein the displacement of the annulus is radial.

13. A method of treating an annulus in claim 1, wherein the displacement of the annulus is circumferential.

14. A method of treating an annulus of an intervertebral disc in a patient'"'"'s spine, the method comprising the steps of:

providing an elongate member;

positioning the elongate member in a natural portion of the annulus of the intervertebral disc; and

actively applying compression to the annulus to cause displacement of the annulus.

15. A method of treating an annulus in claim 14, wherein the elongate member is implanted in the annulus.

16. A method of treating an annulus in claim 14, wherein the elongate member extends across a fracture or fissure in the annulus, and wherein the step of applying compression to the annulus at least partially closes the fracture or fissure in the annulus.

17. A method of treating an annulus in claim 14, further comprising the steps of:

providing a tubular insertion tool having a proximal end and a distal end;

inserting the tubular insertion tool into the patient'"'"'s back such the proximal end is disposed outside the patient'"'"'s back and the distal end is disposed in the annulus; and

advancing the elongate member into the annulus utilizing the tubular insertion tool.

18. A method of treating an annulus in claim 14, further comprising the steps of:

providing a curved insertion tool having a proximal end and a curved distal end;

inserting the curved insertion tool into the patient'"'"'s back such the proximal end of the curved insertion tool is disposed outside the patient'"'"'s back and the curved distal end of the curved insertion tool is disposed in the annulus; and

advancing the elongate member into the annulus utilizing the curved insertion tool.

19. A method of treating an annulus in claim 14, wherein the compression is radial.

20. A method of treating an annulus in claim 14, wherein the compression is circumferential.