Patent ID: 7569074
Filing Date: 2009-08-04
Classification: A61F

Abstract:
1. An expandable intervertebral implant, comprising: a body having a longitudinal axis and including first and second axial walls spaced apart along a transverse axis to define an inner chamber, said first axial wall including a first pair of opposite end portions, said second axial wall including a second pair of opposite end portions, said first pair of end portions interconnected with said second pair of end portions; and an expansion member engaged with said first and second axial walls at a location intermediate said first and second pairs of opposite end portions and extending transversely between and slidably engaging central portions of said first and second axial walls to expand said body along said transverse axis, said expansion member comprising an internal support member positioned within a central region of said inner chamber and having a height extending transversely between and engaging opposing inner surfaces of said central portions of said first and second axial walls; and wherein said expansion member is slidably engaged with said first and second axial walls to uniaxially expand said body along said transverse axis.