Spinal implant

Patent metadata

Field	Value
Publication number	US-10426630-B2
Application number	US-201514620788-A
Country	US
Kind code	B2
Filing date	Feb 12, 2015
Priority date	Feb 12, 2014
Publication date	Oct 1, 2019
Grant date	Oct 1, 2019

Abstract

A spinal implant configured for positioning within a space between adjacent vertebral bodies includes first and second bone screws and a body. The body includes a back surface having first and second openings for receiving the first and second screws. The first and second openings are configured for orientation towards opposing vertebral bodies. The body further includes first and second side surfaces extending from opposing ends of the back surface and first and second end surfaces extending from respective first and second side surfaces, wherein the ends of the first and second end surfaces meet and define an atraumatic nose. A first angle is formed between the first side surface and the first end surface that is different than a second angle that is formed between the second side surface and the first end surface. A method using same is also disclosed.

First claim

What is claimed is:

1. A spinal implant, comprising:
first and second bone screws; and
a body including:
a planar back surface having first and second openings for receiving the first and second bone screws, the first opening configured for orientation towards a first vertebral body and the second opening configured for orientation towards a second vertebral body;
first and second end surfaces extending from opposing ends of the back surface, the first and second end surfaces defining a divergent angle with respect to one another;
first and second side surfaces extending from the respective first and second end surfaces, wherein ends of the first and second side surfaces meet and define an atraumatic nose, wherein the first side surface defines a first longitudinal axis extending perpendicular thereto, the first longitudinal axis bisecting the first side surface, wherein the body is asymmetrical about the first longitudinal axis;
a first angle formed between the first side surface and the first end surface;
a second angle formed between the second side surface and the first side surface, the second angle being less than the first angle;
wherein the back surface defines a second longitudinal axis extending perpendicular thereto, the back surface oriented relative to the first side surface such that the second longitudinal axis defines an oblique angle with respect to the first longitudinal axis,
first and second insert slots each defined in one of the top and bottom surfaces such that the first insert is disposed on one side of the second longitudinal axis and the second insert slot is disposed on an opposite side of the second longitudinal axis, the first and second insert slots being in communication with corresponding openings of the first and second openings and configured to receive plate inserts, each plate insert including a screw opening defined therethrough and configured to be received within one of the first and second insert slots with the screw opening substantially aligned with a corresponding opening of the first and second openings of the body,
wherein the first and second openings are disposed parallel to a plane containing the second longitudinal axis, the back surface, the first and second end surfaces, and the first and second side surfaces define top and bottom surfaces, each of the top and bottom surfaces has a first portion and a second portion, wherein the second portions are proximate to the back surface, the first portions of the top and bottom surfaces include ridges adapted to engage first and second vertebral bodies and the second portions of the top and bottom surfaces lack ridges.

2. The spinal implant of claim 1 , wherein a through-bore is defined through the top and bottom surfaces of the body.

3. A method of performing surgery, comprising:
preparing an intervertebral space between first and second vertebral bodies to receive a spinal implant;
inserting the spinal implant of claim 1 into the prepared intervertebral space; and
inserting the first and second bone screws through the first and second openings of the spinal implant and into each of the respective first and second vertebral bodies.

4. The method of claim 3 , further including packing a through-bore with biological material, the through-bore defined by an interior perimeter of the first and second end surfaces, the first and second side surfaces, and the back surface.

5. The method of claim 3 , wherein the step of inserting the first and second bone screws further includes inserting at least one plate insert within an insert slot defined in one of a top surface or a bottom surface, the top and bottom surfaces defined by the back surface, the first and second end surfaces, and the first and second side surfaces, the insert slot being in communication with an opening of the first and second openings.

Assignees

• K2M Inc

Inventors

• Wallenstein Todd
• Moore Jennifer

Classifications

• A61F2002/30593

  hollow · CPC title

• A61F2002/30787

  inclined obliquely with respect to each other · CPC title

• A61F2002/3008

  radio-opaque, e.g. radio-opaque markers · CPC title

• A61F2002/30827

  Plurality of grooves · CPC title

• A61F2/4455 Primary

  for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages (intervertebral discs A61F2/442) · CPC title