Bone fixation device and method

Patent metadata

Field	Value
Publication number	US-2016367298-A1
Application number	US-201615254762-A
Country	US
Kind code	A1
Filing date	Sep 1, 2016
Priority date	Aug 3, 2012
Publication date	Dec 22, 2016
Grant date	—

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

First claim

We claim:

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.

Assignees

• Nextremity Solutions Inc

Inventors

• Weiner Lon S
• Katchis Stuart D
• Pepper John R

Classifications

• A61B17/8014 Primary

  the extension or compression force being caused by interaction of the plate hole and the screws · CPC title

• A61B17/809

  with bone-penetrating elements, e.g. blades or prongs (bone staples A61B17/0642; intramedullary nails with a plate at an end A61B17/7233) · CPC title

• A61B17/8061

  specially adapted for particular bones (A61B17/70 and A61B17/74 take precedence) · CPC title

• A61B17/80

  Cortical plates {, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates} · CPC title

• A61B17/8004

  with means for distracting or compressing the bone or bones · CPC title