Larry B Boyd

Address:

7709 S Valdai Ct, Aurora, CO 80016

VIN:

4X4FFLD287D814948

Make:

BMW

Model:

X5-Series AWD 4dr 4.8i

Year:

2007

US Patent:

53973640, Mar 14, 1995

Filed:

Oct 12, 1993

Appl. No.:

8/134049

Inventors:

Jeffrey Kozak - Houston TX
Larry Boyd - Memphis TN

Assignee:

Danek Medical, Inc. - Memphis TN

International Classification:

A61F 244

US Classification:

623 17

Abstract:

An interbody fusion device includes a pair of lateral spacers and a pair of central spacers, each sized for percutaneous introduction through a disc resection portal in the disc annulus. Each of the lateral spacers includes opposing side faces defining a channel therein, while each of the central spacers includes arms at their opposite ends configured to be received within a channel of a corresponding lateral spacer. The arms and channels are interlocking to prevent separation of the components once assembled within the intradiscal space. The assembly of the central and lateral spacers defines a cavity therebetween for insertion of bone graft material. The central and lateral spacers are configured so that the bone graft cavity is oriented over the weakest, but most vascular and biologically active, bone of the vertebral body, while the lateral spacers are situated adjacent the disc annulus and over the strongest vertebral bone.