ELECTRICALLY STIMULATED BONE GRAFTING SPINAL IMPLANT SYSTEM AND METHOD

• US 20190321181A1
• Filed: 07/19/2018
• Published: 10/24/2019
• Est. Priority Date: 07/06/2015
• Status: Active Grant

• Current Assignee: Warsaw Orthopedic Incorporated (Medtronic Plc)
• Original Assignee: Warsaw Orthopedic Incorporated (Medtronic Plc)
• Inventors: Benson, Nicholas M., Metcalf, Newton H., Glassman, Steven D., Burch, Shane, Coric, Domagoj, Fields, Robert A.
• Granted Patent: US 10,639,167 B2
• Time in Patent Office: Days
• CPC Class Codes: A61F 2/2846 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 Class Codes: A61F 2/44 for the spine, e.g. vertebrae, spinal discs
• CPC Class Codes: A61F 2/447 substantially parallelepipedal, e.g. having a rectangular or trapezoidal cross-section
• CPC Class Codes: A61F 2/482 Electrical means
• CPC Class Codes: A61F 2002/2821 Bone stimulation by electromagnetic fields or electric current for enhancing ossification
• CPC Class Codes: A61F 2002/30062 (bio)absorbable, biodegradable, bioerodable, (bio)resorbable, resorptive
• CPC Class Codes: A61F 2002/3067 for data transfer
• CPC Class Codes: A61F 2310/00359 Bone or bony tissue
• CPC Class Codes: A61F 2310/00365 Proteins; Polypeptides; Degradation products thereof

Abstract

A spinal implant system includes bone growth promoting material, and an electrical bone growth stimulator. The electrical bone growth stimulator includes a mesh that surrounds at least a portion of the bone growth material, and the electrical bone growth stimulator is configured to conduct an electric current to stimulate tissue growth adjacent to the electrical bone growth stimulator.

Claims

1. A spinal implant system comprising:

bone growth promoting material; and

an electrical bone growth stimulator comprising a first end, a second end and a body portion disposed between the first end and the second end, wherein the electrical bone growth stimulator is positioned across a portion of the bone growth material, wherein the electrical bone growth stimulator is configured to conduct an electric current to stimulate tissue growth adjacent to the electrical bone growth stimulator.

2. The spinal implant system of claim 1, wherein the bone growth promoting material comprises one or more of the following:

synthetic bone grafting material;

allograft bone grafting material;

or

bone morphogenetic protein material.

3. The spinal implant system of claim 1, wherein the electrical bone growth stimulator comprises a cathode rod.

4. The spinal implant system of claim 1, further comprising a control unit and an anode.

5. The spinal implant system of claim 4, wherein the control unit is configured to communicate with a remote controller.

6. The spinal implant system of claim 5, wherein the electrical bone growth stimulator is configured to be powered by the remote controller.

7. The spinal implant system of claim 1, further comprising a control unit, wherein the control unit comprises one or more diagnostic sensors that are configured to detect impedance between the electrical bone growth stimulator and a remote anode.

8. A spinal implant system comprising:

bone growth promoting material; and

an electrical bone growth stimulator comprising a mesh that surrounds at least a portion of the bone growth material, wherein the electrical bone growth stimulator is configured to conduct an electric current to stimulate tissue growth adjacent to the electrical bone growth stimulator.

9. The spinal implant system of claim 8, wherein the bone growth promoting material comprises one or more of the following:

synthetic bone grafting material;

allograft bone grafting material;

or

bone morphogenetic protein material.

10. The spinal implant system of claim 8, further comprising a control unit and an anode.

11. The spinal implant system of claim 10, wherein the control unit is configured to communicate with a remote controller.

12. The spinal implant system of claim 11, wherein the electrical bone growth stimulator is configured to be powered by the remote controller.

13. The spinal implant system of claim 8, further comprising a control unit, wherein the control unit comprises one or more diagnostic sensors that are configured to detect impedance between the electrical bone growth stimulator and a remote anode.

14. A bone graft comprising:

bone growth promoting material; and

an electrical bone growth stimulator comprising cathode material, wherein the electrical bone growth stimulator is positioned across at least a portion of the bone growth material, wherein the electrical bone growth stimulator is configured to conduct an electric current to stimulate tissue growth adjacent to the electrical bone growth stimulator.

15. The bone graft of claim 14, wherein the bone growth promoting material comprises one or more of the following:

synthetic bone grafting material;

allograft bone grafting material;

or

bone morphogenetic protein material.

16. The bone graft of claim 14, wherein the electrical bone growth stimulator comprises a cathode rod. The bone graft of claim 14, wherein the electrical bone growth stimulator comprises a cathode mesh.

18. The bone graft of claim 14, further comprising a control unit and an anode.

19. The bone graft of claim 18, wherein the control unit is configured to communicate with a remote controller.

20. The bone graft of claim 14, further comprising a control unit, wherein the control unit comprises one or more diagnostic sensors that are configured to detect impedance between the electrical bone growth stimulator and a remote anode.