Patent ID: 8075622
Filing Date: 2011-12-13
Classification: A61F,A61L,Y10S

Abstract:
1. A hollow spinal spacer for engagement within an intervertebral space between adjacent vertebrae, comprising: an anterior wall; a posterior wall; two lateral walls integrally connected between said anterior and posterior walls to define a monolithic, single-piece spacer body having a hollow inner chamber defined by said walls; wherein said lateral walls each have a flat lateral surface extending continuously from said anterior wall to said posterior wall; said spacer body sized and shaped to substantially fill the intervertebral space between the adjacent vertebrae such that a single spacer body is sufficient to preserve a height of the intervertebral space; and said spacer body defining a superior vertebral engaging face and an opposite inferior vertebral engaging face, said superior vertebral engaging face defined by a thickness of said walls extending about and defining a first superior opening in communication with said chamber, said inferior vertebral engaging face defined by a thickness of said walls extending about and defining a second inferior opening in communication with said chamber; wherein the spacer defines an overall spacer width between said lateral walls and an overall spacer length between said anterior wall and said posterior wall; wherein a concave outer surface curvature is defined by one of said superior vertebral engaging face and said inferior vertebral engaging face and extends along the overall spacer length; and wherein an opposite one of said superior vertebral engaging face and said inferior vertebral engaging face defines a convex outer surface curvature extending laterally between said lateral walls and extending along the overall spacer length.