ADJUSTABLE INTERBODY FUSION DEVICES

摘要

Interbody fusion devices, insertion tools, methods for assembling an interbody fusion device, and methods for inserting a medical device between two vertebral bodies are disclosed. The interbody fusion device includes a base member, a top member, and at least one movement mechanism. The base member includes at least one of a pivot cylinder and a hinge channel. The top member includes at least one of a pivot cylinder and a hinge channel. The at least one pivot cylinder of the base member engages the at least one hinge channel of the top member and the at least one pivot cylinder of the top member engages the at least one hinge channel of the base member. The at least one movement mechanism engages the top member and the base member. Also disclosed are a vertebral spacer device and an interbody spacer system including an insertion tool and an interbody fusion device.

主权项

1. An interbody fusion device, the device comprising:
a base member including at least one of a pivot cylinder and a hinge channel; a top member including at least one of a pivot cylinder and a hinge channel, wherein the at least one pivot cylinder of the base member engages the at least one hinge channel of the top member and the at least one pivot cylinder of the top member engages the at least one hinge channel of the base member; and at least one movement mechanism engaging the top member and the base member, the at least one movement mechanism comprising:
a first expansion assembly having a first cylindrical gear, a first threaded rod, and a first load head, the first cylindrical gear comprising a plurality of depressions on an exterior surface of the first cylindrical gear and a plurality of threads on an interior surface, the first threaded rod comprising a plurality of threads on an exterior surface of the first threaded rod for engaging the plurality of threads on the interior surface of the first cylindrical gear and a curved surface on a superior end, the load head comprising a channel positioned on a bottom surface of the load head for receiving the curved surface of the threaded rod.