Spinal interbody fusion device and method

Details Spinal interbody fusion device and method Spinal interbody fusion device and method

2006-04-04

2006-04-04

Robert, Eduardo C. (Department: 3733)

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

C623S017110, C623S017150, C623S017160, C606S064000

Reexamination Certificate

active

07022138

ABSTRACT:
A disc replacement spinal interbody fusion device is provided having a central sleeve with oppositely left and right-hand threaded axial bores with different diameters. Circumferential threaded apertures are located on the sleeve and open into the sleeve bores. The device has two opposing plates which are oval-shaped and centrally, axially bored. Each plate has a perpendicular shaft with an axial bore which communicates with the plate bore. In situ, axial loading of the spinal column upon the fusion device creates a bending moment manifested by a flexing action of the plates to generate opposing axial directional forces which replicate the physiological function of shock absorption, load bearing and load transmission.

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Book entitled “Biomechanics of Spine Stabilization Principles and Clinical Procedures” by Edward C. Benzel; 278 pages; Copyright 1995.

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