Patent ID: 7311734

Claim:
A hollow spinal spacer for engagement between vertebrae, comprising: an anterior wall having a convexly curved anterior surface and opposite ends; a posterior wall having a flat posterior surface and opposite ends; two lateral walls integrally connected between said anterior and posterior walls to define a monolithic, single-piece spacer body, each of said lateral walls having a flat lateral surface extending continuously from said anterior wall to said posterior wall to define a chamber; and said anterior, posterior and lateral walls cooperating to define a D-shaped spacer body sized and configured to substantially fill the space between the vertebrae with said convexly curved anterior surface of said anterior wall sized and shaped to substantially conform to an anterior aspect of the space between the vertebrae and wherein said walls of said spacer body are sized and shaped such that a single spacer body is sufficient to preserve a height of the space between the vertebrae; and said walls further defining; a superior vertebral engaging face defined by a thickness of said walls, said superior vertebral engaging face extending about a first opening defined by said chamber, said walls extending about and defining said first opening; and an opposite inferior vertebral engaging face defined by said thickness of said walls, said opposite inferior vertebral engaging face extending about a second opening defined by said chamber, said walls extending about and defining said second opening.