EXPANSION APPARATUS FOR ADJUSTABLE SPINAL IMPLANT

摘要

A vertebral implant assembly (20) having a tubular body (22) and a pair of endplate assemblies (24, 26) is installed between two vertebral endplates using an apparatus (50) comprising an axle (62) having a proximal end and a distal end, a set of gears (82, 84) connected to the proximal end of the axle, and an engager device (58) connected to the set of gears and adapted to rotate the tubular body (22) when the axle (62) is rotated. As the tubular body (22) is rotated, the vertebral implant assembly (20) expands.