EXPANDABLE SPINAL INTERBODY CAGE AND METHODS

摘要

An implantable device assembly including a bone fusion cage assembly having first and second housing members and a biasing member. The first housing member defines a first contact surface. The second housing member defines a second contact surface that faces generally opposite the first contact surface. The biasing member is operable to bias the first and second housing members away from each other into an expanded position. Each of the first and second housing members may include at least one pivot portion that defines the contact surfaces. The implantable device assembly may also include a plate assembly that is mounted to the bone fusion cage assembly.