Patent ID: 8864829

Claim:
A spinal cage assembly, comprising: a spinal cage, wherein said spinal cage has a wall extending in a longitudinal direction and forming a closed curve in a plane perpendicular to said longitudinal direction, wherein said spinal cage has a rib connecting said wall with an opposed location on said wall; and a rotatable member, engageable with said spinal cage and rotatable with respect to said spinal cage about an axis of rotation, said rotatable member having a shaft having a first end and a second end opposed to said first end and having a blade on said shaft, wherein said blade and said shaft rotate about said axis of rotation, wherein said wall has a first feature receiving said first end of said shaft and said rib has a second feature receiving said second end of said shaft, wherein said rotatable member is rotatable between an undeployed configuration and a deployed configuration, wherein in said undeployed configuration no part of said rotatable member extends beyond an envelope of said spinal cage in a radial direction that is radial with respect to said axis of rotation of said rotatable member when assembled to said spinal cage, and in said deployed configuration some part of said rotatable member extends beyond said envelope of said spinal cage in said radial direction.