Vertebral spacer

摘要

An anterior cervical column support having a hollow frame having a top load bearing surface and a bottom load bearing surface may be inserted between a first spinal vertebra and a second spinal vertebra. The top load bearing surface and the bottom load bearing surface may each include an opening allowing access to the interior of the frame. A front surface may extend between the top load bearing surface and the bottom load bearing surface, and a rear surface may extend between the top load bearing surface and the bottom load bearing surface. Two side surfaces are attached between the front surface and the rear surface, each side surface having a solid side panel that is at least x-ray translucent. An anterior (front) plate is attached to the front surface of the support device, where the front plate includes clearance holes for receiving fasteners for holding the front plate in position. The top load bearing surface and the bottom load bearing surface may include a serrated or other high friction surface for applying frictional forces between the load bearing surfaces and adjacent vertebrae.

主权项

1. A vertebral column support device for insertion between a first spinal vertebra and a second spinal vertebra, comprising:
a hollow frame having a top load bearing surface and a bottom load bearing surface, wherein the top load bearing surface and the bottom load bearing surface each include at least one opening allowing access to at least one interior area of the frame; a first surface having at least a portion that is opaque to x-rays attached between the top load bearing surface and the bottom load bearing surface and a second surface having at least a portion that is opaque to x-rays extending between the top load bearing surface and the bottom load bearing surface; third and fourth surfaces extending between the second surface and the first surface, each of the third and fourth surface comprising a solid panel which is at least x-ray translucent wherein the solid panels are surrounded by material that is opaque to x-rays; and wherein the top load bearing surface comprises a first frictional surface for applying frictional forces between the top load bearing surface and an adjacent bone surface; and the bottom load bearing surface comprises a second frictional surface for applying frictional forces between the bottom load bearing surface and an adjacent bone surface.