Patent ID: 9034046
Filing Date: 2015-05-19
Classification: A61F

Abstract:
1. A vertebral body replacement device comprising: a body member having an inner wall and an outer wall, wherein the outer wall of the body member has at least one rib disposed thereon; a central rod member having a first threaded portion and a second threaded portion, the central rod member being configured to be operatively associated within the body member, the central rod member comprising a gear wheel portion, the gear wheel portion having a toothed surface and a support surface; and a first end member and a second end member, the first end member and the second end member each having a channel defined by an inner wall, the first end member being configured to threadingly engage the first threaded portion of the central rod member and the second end member being configured to threadingly engage the second threaded portion of the central rod member, wherein the channels of the first and second end members matingly engage the at least one rib disposed on the outer wall of the body member to inhibit rotational movement of the first and second end members 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.