Interbody spacer

Patent metadata

Field	Value
Publication number	US-10849764-B2
Application number	US-201816039701-A
Country	US
Kind code	B2
Filing date	Jul 19, 2018
Priority date	Jan 27, 2015
Publication date	Dec 1, 2020
Grant date	Dec 1, 2020

Abstract

An interbody spacer is provided including a body portion defining a longitudinal axis. The body portion includes a distal end portion, a proximal end portion, opposed side surfaces that extend between the distal and proximal end portions, and top and bottom surfaces configured and adapted to engage vertebral bodies. The interbody spacer includes first orifices defined through the top surface. The first orifices include orifices having first and second cross-sectional configurations and the first orifices are arranged in rows extending along the longitudinal axis.

First claim

What is claimed is:

1. An interbody spacer, comprising:
a homogenous body portion including a distal end portion, a proximal end portion, opposed side surfaces that extend between the distal and proximal end portions, and top and bottom surfaces configured and adapted to engage vertebral bodies, the top and bottom surfaces defining a vertical axis extending therethrough;
first orifices defined through the top surface; and
second orifices defined through the bottom surface, wherein a respective orifice of the first and second orifices is in open communication thereby defining an uninterrupted channel therebetween,
wherein the channel defines a plurality of cross-sections, a center cross-section of the plurality of cross-sections defining a cross-sectional area that is less than cross-sections disposed adjacent the top surface and the bottom surface.

2. The interbody spacer of claim 1 , wherein the body portion is formed from powder processed using Selective Laser Powder Processing.

3. An interbody spacer comprising:
a monolithic body portion having opposed proximal and distal end portions, opposed top and bottom surfaces, and opposed side surfaces extending between the top and bottom surfaces and between the proximal and distal end portions;
a first orifice extending through the top surface;
a second orifice extending through the bottom surface, the first and second orifices coincident about a first vertical axis,
a first channel extending between the first and second orifices, the first channel being connected to a third orifice extending through the top surface; and
a second channel extending between the third orifice and a fourth orifice, the fourth orifice extending through the bottom surface, wherein the first channel is in fluid communication with the second channel.

4. The interbody spacer of claim 3 , wherein a-the first vertical axis extends between the first orifice and the second orifice, a midpoint of the first channel being laterally spaced from the first vertical axis.

5. The interbody spacer of claim 3 , wherein the body portion is formed from powder processed using Selective Laser Powder Processing.

6. The interbody spacer of claim 4 , wherein a second vertical axis extends between the third orifice and the fourth orifice, a midpoint of the second channel being laterally spaced from the second vertical axis.

Assignees

• K2M Inc

Inventors

• Moore Jennifer
• Carnes Megan
• Wallenstein Todd
• Boyd Clint
• Floyd Jordan
• Truesdell Stephen

Classifications

• A61F2/447 Primary

  substantially parallelepipedal, e.g. having a rectangular or trapezoidal cross-section · CPC title

• A61F2002/4692

  fluid · 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

• A61F2/446

  having a circular or elliptical cross-section substantially parallel to the axis of the spine, e.g. cylinders or frustocones · CPC title

• A61F2/30771

  applied in original prostheses, e.g. holes or grooves · CPC title