초록 ▼

A bone fusion mass constrainer is useful for promoting fusion between a pair of adjacent vertebrae. The bone fusion mass constrainer includes a generally cylindrical cage assembly having an internal cavity with open top and bottom surfaces. The cage portion is intended to be positioned in contact wi

A bone fusion mass constrainer is useful for promoting fusion between a pair of adjacent vertebrae. The bone fusion mass constrainer includes a generally cylindrical cage assembly having an internal cavity with open top and bottom surfaces. The cage portion is intended to be positioned in contact with the cancellous bone of the adjacent vertebrae. A pair of horizontal platforms extend out from the cage assembly and provide support for the vertebrae by contacting the harder cortical bone of the endplates of the vertebrae. Bone graft is inserted into the cavity where it contacts the cancellous bone of the adjacent vertebrae and promotes fusion between the two vertebrae. An end cap is provided over the proximal opening of the cage assembly to prevent migration of bone graft out from the cage. The bone fusion mass constrainer also includes a pair of blades which can be extended outwardly from the cage assembly and into the cancellous bone of the adjacent vertebrae in order to prevent migration of the device from between the vertebrae.

대표청구항 ▼

A bone fusion mass constrainer for insertion between a pair of adjacent vertebrae to promote fusion between the vertebrae comprising: a cage assembly defining an inner cavity for containing bone graft; a pair of opposed platforms for providing support to the adjacent vertebrae; a pair of blades exte

A bone fusion mass constrainer for insertion between a pair of adjacent vertebrae to promote fusion between the vertebrae comprising: a cage assembly defining an inner cavity for containing bone graft; a pair of opposed platforms for providing support to the adjacent vertebrae; a pair of blades extendable from the cage assembly for anchoring the cage assembly between the adjacent vertebrae; and an end cap for closing the inner cavity and including means for extending the blades from the cage assembly.