Abstract: An interbody fusion device for fusion of vertebrae, and methods thereof. The device includes a first piece made of titanium having upper and lower surfaces configured to engage the endplates of two opposing vertebrae. The upper and lower surfaces include a plurality of barbed teeth configured to engage an endplate. The first piece includes an inner void area configured to receive a second piece. The second piece is configured to engage the first piece to slide over inner surfaces of the first piece become seated and mated in the first piece. The first and second pieces mate to form an assembled interbody fusion device that fits between two vertebrae.

Abstract: A method and apparatus is provided for use in spinal fusion procedures. An interbody fusion device has a first piece that is a load bearing device designed to bear the axial loading from the end plates of adjacent vertebrae. A second piece of the interbody fusion device is a retention device whose function is to prevent migration of the load bearing device. One or more fasteners secure the retention device to the vertebrae above and below the load bearing device. The fasteners cause the end plates of the vertebrae to compress the end plates to the load bearing device to facilitate proper fusion. The device includes a snap in mechanism for coupling the first piece to the second piece.

Abstract: A medical device comprising a non-enclosed housing configured to fit between two adjacent vertebrae; one or more housing fasteners extending at least partially through the housing, one or more driving mechanisms operationally positioned in relationship to at least one housing fastener, such that activation of at least one driving mechanism engages and drives at least one housing fastener to compress into at least one adjacent vertebrae and one or more plates removably coupled to the housing.

Abstract: A medical device comprising a non-enclosed housing configured to fit between two adjacent vertebrae; one or more housing fasteners extending at least partially through the housing, one or more driving mechanisms operationally positioned in relationship to at least one housing fastener, such that activation of at least one driving mechanism engages and drives at least one housing fastener to compress into at least one adjacent vertebrae and one or more plates removably coupled to the housing.

Abstract: A method and apparatus is provided for use in spinal fusion procedures. An interbody fusion device has a first piece that is a load bearing device designed to bear the axial loading from the end plates of adjacent vertebrae. A second piece of the interbody fusion device is a retention device whose function is to prevent migration of the load bearing device. One or more fasteners secure the retention device to the vertebrae above and below the load bearing device. The fasteners cause the end plates of the vertebrae to compress the end plates to the load bearing device to facilitate proper fusion. The device includes a snap in mechanism for coupling the first piece to the second piece.