BONE FIXATION DEVICE AND METHOD

• US 20140039561A1
• Filed: 08/03/2012
• Published: 02/06/2014
• Est. Priority Date: 08/03/2012
• Status: Active Grant

• Current Assignee: Zimmer Incorporated (Zimmer Biomet Holdings, Inc.)
• Original Assignee: Nextremity Solutions, LLC
• Inventors: Weiner, Lon, Katchis, Stuart D., Pepper, John R.
• Granted Patent: US 9,433,452 B2
• Time in Patent Office: Days
• US Class Current: 606/282
• CPC Class Codes: A61B 17/0642 for bones, e.g. for osteosynthesis or connecting tendon to bone
• CPC Class Codes: A61B 17/80 Cortical plates , i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
• CPC Class Codes: A61B 17/8004 with means for distracting or compressing the bone or bones
• CPC Class Codes: A61B 17/8014 the extension or compression force being caused by interaction of the plate hole and the screws
• CPC Class Codes: A61B 17/8061 specially adapted for particular bones A61B17/70 and A61B17/74 take precedence
• CPC Class Codes: A61B 17/809 with bone-penetrating elements, e.g. blades or prongs bone staples A61B17/0642; intramedullary nails with a plate at an end A61B17/7233

Abstract

In a method and system for corrective surgery of a bone, a bone is cut into a first bone segment and a second bone segment. A plate is positioned over the first bone segment and the second bone segment such that at least one member of the plate is positioned to engage the second bone segment. The at least one member of the plate is inserted into the second bone segment. At least one bone screw is screwed into the first bone segment through at least one compression slot of the plate causing an application of compressive force to secure the first bone segment and the second bone segment to form a corrective construct. The at least one member is positioned at an angle or an offset from the second plate segment

Claims

1. A method for corrective surgery of a bone, comprising:

cutting the bone into a first bone segment and a second bone segment;

positioning a plate over the first bone segment and the second bone segment such that at least one member of the plate is positioned to engage the second bone segment;

inserting the at least one member of the plate into the second bone segment;

screwing at least one bone screw into the first bone segment through at least one compression slot of the plate causing an application of compressive force to secure the first bone segment and the second bone segment to form a corrective construct.

2. A bone fixation system, comprising:

a plate comprising;

a first plate segment comprising;

at least one member for engagement with a second bone segment of the bone; and

a second plate segment comprising;

at least one compression slot for receiving at least one male fixation member causing an application of compressive force to secure a first bone segment with the second bone segment to form a corrective construct;

wherein the at least one member is positioned at an angle or an offset from the second plate segment.

3. The system of claim 2, wherein the bone is a first metatarsal bone.

4. The system of claim 2, wherein the bone is cut into the first bone segment and the second bone segment based on a guide placed over the bone.

5. The system of claim 2, wherein the plate is placed over the first bone segment and the second bone segment based on a corrective angle of the first bone segment and the second bone segment.

6. The system of claim 2, further comprising:

a compressive force device to apply a compressive force to the at least one member causing engagement of the at least one member with the second bone segment.

7. The system of claim 2, wherein the male fixation member is at least one of a screw, pin, bolt, or nail.

8. The system of claim 2, wherein the male fixation member interacts with the compression slot to cause engagement of the at least one member with the second bone segment.

9. The system of claim 2, further comprising:

a stapling mechanism to apply a compressive force to the at least one member causing engagement of the at least one member with the second bone segment.

10. The system of claim 9, wherein an angulation of the at least one member causes the at least one member to move downward as the plate is tightened such that the at least one member does not expulse from the bone.

11. The system of claim 2, wherein the at least one bone screw is screwed into the first bone segment through the at least one hole of the second plate segment to affect compression between the first bone segment and the second bone segment causing the second bone segment to move towards the first bone segment.

12. The system of claim 2, wherein the at least one member comprises fixation means for affixing to the second bone segment.

13. The system of claim 2, wherein the fixation means comprises at least one of:

teeth, barbs, or a surface irregularity for securing to the second bone segment.

14. The system of claim 2, wherein the plate is an asymmetric plate.

15. The system of claim 2, wherein the at least one member is configured to be centralized after engagement with the second bone segment, and the at least one member is aligned with respect to each other in a coronal plane at a corrective shift based on the plate.

16. The system of claim 2, wherein the at least one members are configured to be centralized after engagement with the second bone segment, and the at least one members are aligned with respect to each other in a coronal plane at a corrective shift based on the plate.

17. The system of claim 2, wherein the first plate segment and the second plate segment are connected by a hinged connection

18. The system of claim 2, wherein the first plate segment and the second plate segment have a same thickness.

19. The system of claim 2, wherein the first plate segment and the second plate segment comprise a first material.

20. The system of claim 2, wherein the plate further comprises:

a third plate segment coupling the first plate segment and the second plate segment.

21. The system of claim 20, wherein the third plate segment comprises a first thickness and the first plate segment and the second plate segment comprise a second thickness.

22. The system of claim 20, wherein the third plate segment comprises a first material and the first plate segment and the second plate segment comprise a second material.

23. The system of claim 2, wherein the at least one member comprises a tine or a staple.

24. The system of claim 2, wherein the at least one member is nearly perpendicular to an axis of the bone.

25. A device for fusing joints, comprising:

a plate for positioning over a first joint and a second joint such that at least one member of the plate is positioned to engage the second joint;

at least one member for inserting into the second joint, wherein the at least one member is positioned at an angle or an offset from a remainder of the plate;

at least one screw for screwing into the first joint through at least one compression slot of the plate causing an application of compressive force to secure the first joint and the second joint to form a corrective construct.

26. The device of claim 25, wherein the plate is for positioning over the first joint and the second joint based on a corrective positioning of the first joint and the second joint.

27. The device of claim 26, wherein the first joint and the second joint are positioned at a corrective positioning by translating the second joint laterally.

28. The device of claim 25, wherein the at least one member is for inserting into the second joint using compressive force.

29. The device of claim 25, wherein the at least one member is for inserting into the second joint using a stapling mechanism to apply compressive force to the at least one member.

30. The device of claim 25, wherein the at least one screw is for screwing into the first joint through the at least one compression slot to affect compression between the first joint and the second joint causing the second joint to move towards the first joint.

31. The device of claim 25, wherein the at least one member comprises fixation means for affixing to the second joint.

32. The device of claim 25, wherein the at least one member is at least one of:

a tine or a staple.

33. The device of claim 25, wherein the at least one member is nearly perpendicular to an axis of the first joint and the second joint.

44. The fixation plate of claim 25, wherein the at least one member is nearly perpendicular to an axis of the first bone segment and the second bone segment.

34. A bone fixation system, comprising:

a plate comprising;

a first plate segment comprising;

at least one member for engagement with a second bone segment of the bone; and

a second plate segment comprising;

at least one slot for receiving at least one bone screw to secure a first bone segment with the second bone segment to form a corrective construct;

wherein the at least one member is positioned at an angle or an offset from the second plate segment.

35. A fixation plate, comprising:

a first portion comprising;

at least one member for engagement with a second bone segment;

a second portion comprising;

at least one slot to secure a first bone segment with the second bone segment; and

a third portion coupled between the first portion and the second portion;

wherein the at least one member is positioned at an angle or an offset from the second portion and the third portion.

36. The fixation plate of claim 35, wherein the at least one slot receives at least one male fixation member.

37. The fixation plate of claim 36, wherein the at least one male fixation member is at least one of a screw, pin, bolt, or nail.

38. The fixation plate of claim 35, wherein the at least one male fixation member interacts with the at least one slot based on an application of compressive force to the at least one male fixation member.

39. The fixation plate of claim 35, wherein the at least one slot is a compression slot.

40. The fixation plate of claim 35, wherein the at least one member comprises fixation means for affixing to the second bone segment.

41. The fixation plate of claim 35, wherein the first portion and the second portion are connected by the third portion with a hinged connection.

42. The fixation plate of claim 35, wherein the first portion and the second portion comprises a first thickness, and the third portion comprises a second thickness.

43. The fixation plate of claim 35, wherein the first portion and the second portion comprise a first material, and the third portion comprises a second material.