IMPLANT FOR FUSION BETWEEN ADJACENT BONE BODIES

• US 20150374503A1
• Filed: 06/30/2015
• Published: 12/31/2015
• Est. Priority Date: 06/30/2014
• Status: Abandoned Application

• Current Assignee: Bacterin International Incorporated (OrbiMed Advisors LLC (China))
• Original Assignee: Bacterin International Incorporated (OrbiMed Advisors LLC (China))
• Inventors: Lovick, Helena M., Smith, Craig S., Meyer, Todd R., Byrd, Dustin B.
• Application Number:
  US14/755,783
• Publication Number:
  US 20150374503A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 17/7291 for small bones, e.g. in the foot, ankle, hand or wrist
• CPC Class Codes: A61F 2002/4243 for interphalangeal joints, i.e. IP joints

Abstract

The invention relates to three-dimensional implants to facilitate fusion between two adjacent bone bodies and methods of manufacture thereof.

Claims

1. A three-dimensional implant for fusing two adjacent bone bodies, comprising:

a body;

at least one raised ridge along at least one surface of the body; and

a raised stop along a length of the body, wherein the body, the at least one raised ridge, and the raised stop comprises at least a biocompatible material.

2. The three-dimensional of claim 1, wherein the raised stop is at an approximate midline of the body of the implant.

3. The three-dimensional of claim 1, wherein the raised stop is at approximately one third of a length of the body of the implant.

4. The three-dimensional of claim 1, wherein the at least one raised ridge is irregularly spaced on the body of the implant.

5. The three-dimensional of claim 1, wherein the at least one raised ridge is regularly spaced on the body of the implant.

6. The three-dimensional implant of claim 1, wherein the implant is angled at the raised stop.

7. The three-dimensional implant of claim 6, wherein an angle of the implant at the raised stop is between about 0 degrees to about 15 degrees.

8. The three-dimensional implant of claim 7, where the cross-sectional area of the implant on one side of the raised stop may be the same or greater than the cross sectional area of the implant on the other side of the raised stop.

9. The three-dimensional implant of claim 1, wherein a material of the implant is bone.

10. The three-dimensional implant of claim 9, wherein the bone comprises at least one of cortical bone, and cancellous bone.

11. The three-dimensional bone implant of claim 9, wherein the bone is fully demineralized.

12. The three-dimensional bone implant of claim 9, wherein the bone is partially demineralized.

13. The three-dimensional bone implant of claim 9, wherein the bone is fully mineralized.

14. The three-dimensional bone implant of claim 9, wherein the bone is at least two of fully demineralized bone, partially demineralized bone and mineralized bone.

15. The three-dimensional bone implant of claim 1, wherein the implant is dehydrated or fully hydrated.

16. The three-dimensional bone implant of claim 1, wherein a residual moisture content of the implant is less than about 6%.

17. The three-dimensional bone implant of claim 1, wherein the at least one raised ridge on at least one surface of the body of the implant are sinusoidal-like.

18. The three-dimensional bone implant of claim 1, wherein the at least one raised ridges is substantially circular in shape.

19. The three-dimensional bone implant of claim 1, wherein the at least one raised ridges is substantially octagonal in shape.

20. A method of using the three-dimensional implant, comprising:

preparing at least one cavity in a first bone to be fused;

preparing at least one cavity in a second bone to be fused, wherein the first bone and the second bone are adjacent;

providing an implant, wherein the implant comprises;

a body;

at least one raised ridge along the body of the implant;

a raised stop along a length of the implant, wherein the raised stop comprises a first side and a second side;

a first end of the implant; and

a second end of the implant, wherein the implant comprises at least one biocompatible material;

placing the first end of the implant in the at least one cavity of the first bone until the first side of the raised stop of the implant is in contact with a surface of the first bone; and

placing the second end of the implant into the at least one cavity of the second bone until the second side of the raised stop of the implant is in contact with a surface of the second bone.

21. The method of claim 20, wherein at least one diameter of the at least one cavity of the first bone or the at least one cavity of the second bone is smaller than a cross-sectional height of the implant.

22. The method of claim 21, wherein the at least one diameter of the at least one cavity of the first bone or the at least one cavity of the second bone is between about 0.3 mm to about 0.01 mm smaller than the cross-sectional height of the implant.