Step off bone plates, systems, and methods of use

Patent metadata

Field	Value
Publication number	US-2016135858-A1
Application number	US-201414547616-A
Country	US
Kind code	A1
Filing date	Nov 19, 2014
Priority date	Nov 19, 2014
Publication date	May 19, 2016
Grant date	—

Abstract

The present invention discloses a step off bone plate, bone plate insertion system, and method of use. The step off bone plate includes a body with a first end and a second end, the body includes a first portion with a first curvature, a second portion with a second curvature, and a connecting portion coupled to the first portion at a first end and coupled to the second portion at a second end. The bone plate insertion system includes a step off bone plate and an alignment guide apparatus. A method of using the step off bone plate is also disclosed.

First claim

Having thus described the preferred embodiments, the invention is now claimed to be:

1 . A bone plate, comprising:
a body with a first end and a second end, the body further comprising;
a first portion with a first curvature;
a second portion with a second curvature; and
a connecting portion, wherein the connecting portion connects the first portion to the second portion.

2 . The bone plate of claim 1 , wherein the first curvature is larger than the second curvature.

3 . The bone plate of claim 1 , wherein the first curvature ranges from 8 mm to 60 mm.

4 . The bone plate of claim 1 , wherein the body is curved along a longitudinal axis.

5 . The bone plate of claim 4 , wherein the curvature along the longitudinal axis ranges from 50 mm to 300 mm.

6 . The bone plate of claim 1 , wherein the first portion comprises:
an extension arm extending away from a side of the body; and a slot extending through the first portion of the body near the first end.

7 . The bone plate of claim 6 , wherein the first portion further comprises:
a first opening extending through the body adjacent to the slot; and a second opening extending through the extension arm.

8 . The bone plate of claim 7 , wherein the second portion comprises:
a first lobe; and a second lobe offset from the first lobe.

9 . The bone plate of claim 8 , wherein the second portion further comprises:
a ramped surface on the second end of the body.

10 . The bone plate of claim 9 , wherein the ramped surface is angled from a bottom surface of the body to a top surface of the body.

11 . The bone plate of claim 10 , wherein the first lobe and second lobe each include an opening extending from a top surface of the second portion through a bottom surface of the second portion.

12 . The bone plate of claim 11 , wherein the connecting portion comprises a perpendicular distance between the first portion and the second portion.

13 . The bone plate of claim 12 , wherein the first portion is fixed to a bottom of the connecting portion and the second portion is fixed to a top of the connecting portion.

14 . The bone plate of claim 13 , wherein the first portion is offset in a vertical direction from the second portion.

15 . The bone plate of claim 6 , wherein the extension arm is curved along the first curvature of the first portion and angled toward the second portion.

16 . A bone plate insertion system, comprising:
a bone plate with a first end and a second end, the bone plate further comprising;
a first portion with a first curvature;
a second portion with a second curvature; and
a connecting portion, wherein the connecting portion connects the first portion to the second portion; and
an alignment guide apparatus.

17 . The bone plate insertion system of claim 16 , wherein the alignment guide apparatus, comprises:
a body, comprising:
an arm with a first end and a second end;
an attachment portion at the first end; and
an alignment portion at the second end with at least one opening;
a coupling member with a knob and a shaft, wherein the shaft passes through the attachment portion; a protector member with a handle portion and a shaft portion, wherein the shaft portion passes through the alignment portion; wherein the coupling member attaches the alignment guide apparatus to the bone plate.

18 . The bone plate insertion system of claim 17 , wherein the alignment portion is square.

19 . A method for using a step off bone plate, comprising:
preparing and aligning a patient's bones; selecting a step off bone plate; attaching an insertion guide to the step off bone plate; aligning the step off bone plate over the bones; securing the bone plate to the bones with temporary fixation members; inserting a guide wire through the insertion guide and across the bones; removing the insertion guide from the step off bone plate; inserting a screw over the guide wire and across the bones; and inserting bone screws to secure the plate to the patient's bones.

20 . The method of claim 19 , wherein the step off bone plate comprises:
a body with a first end and a second end, the body further comprising;
a first portion with a first curvature;
a second portion with a second curvature; and
a connecting portion, wherein the connecting portion connects the first portion to the second portion.

Assignees

• Paragon 28 Inc

Inventors

• Dacosta Albert
• Clendenin Joshua

Classifications

• A61B17/8061 Primary

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

• A61B2017/564

  Methods for bone or joint treatment · CPC title

• A61B17/808

  Instruments for holding or positioning bone plates, or for adjusting screw-to-plate locking mechanisms · CPC title

• A61B17/80 Primary

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

• A61B17/1728

  for holes for bone plates or plate screws · CPC title