Spinal fusion cage having post-operative adjustable dimensions

摘要

A spinal implant including first spinal attachment member for attaching to a first spinal portion, second spinal attachment member for attaching to a second spinal portion, and a post-implantation variable dimension device disposed between the first and second spinal attachment members, which is operable after completing surgery in which said spinal implant was installed into a patient, to cause relative movement between the first and second spinal attachment members.

主权项

1. A spinal implant characterised by:
first and second spinal attachment members that comprise at least one inclined alignment rail that slides over at least one inclined channel; and a pulling element arranged to cause said first and second spinal attachment members to slide relative to one another via said at least one inclined alignment rail and said at least one inclined channel; wherein a proximal end of said pulling element is internally threaded and mates with a threaded rod, and said threaded rod is rotated by a gear system powered by an actuating motor, and said actuating motor is controlled by a printed circuit, which comprises at least one of a micro-controller, a radio system, a remote switch, a capacitor, and an induction coil.