Patent ID: 8591587

Claim:
A vertebral body replacement device comprising: a body member comprising a tool port defined in an outer wall of the body member, a first end receptacle extending in a first direction, and a second receptacle extending in a second direction opposite to the first direction; a central rod member having a first threaded portion, a second threaded portion, and a gear wheel portion, the central rod member extending within the body member, and the gear wheel portion having a toothed surface and a support surface; a first end member and a second end member, the first end member having a first end face comprising an aperture defined therein and configured to slidably receive the first end receptacle therein and a threaded hole which engages the first threaded portion of the central rod member, and the second end member having a first end face comprising an aperture defined therein and configured to slidably receive the second end receptacle therein and a threaded hole which engages the second threaded portion of the central rod member, wherein the first end member bounds the first end receptacle internally and externally in a radial direction relative to a longitudinal axis of the body member, and the second end member bounds the second end receptacle internally and externally in a radial direction relative to a longitudinal axis of the body member; and the body member, first end member and second end member inhibit rotational movement of the first and second end members relative to the body member when the vertebral body replacement device is disposed within a space within a spinal column with the first and second end members engaging respective vertebral bodies of the spinal column and the central rod member is rotationally actuated to move the first end member and the second end member in an axial direction relative to the body member allowing for the first end member and the second end member to apply a force to the two vertebral bodies to maintain a desired space therebetween.