Patent ID: 8152851
Filing Date: 2012-04-10
Classification: A61B,A61F

Abstract:
1. An adjustable corpectomy implant comprising: a first cage having a first end and a second end and having at least one helical profile on an external surface thereof; a second cage having a second end with a first axial opening therein and a first end and an inner surface and an outer surface, wherein said first axial opening receives therewithin said first end of said first cage; a first endplate attached to said second end of said first cage for engaging a first vertebral body; a second endplate attached to said first end of said second cage for engaging a second vertebral body; a rotor disposed within said first axial opening having an inner surface and an outer surface, wherein said inner surface has a profile that matingly engages said at least one helical profile on said external surface of said first cage, wherein said rotor spins about a cylindrical axis in response to axial movement imparted to said first cage within said second cage; a locking collar engageable with said rotor, wherein said locking collar is moveable from a first, unlocked position wherein said rotor is free to rotate about said cylindrical axis to a second, locked position wherein said rotor is prevented from rotating about said cylindrical axis; and a bias member, wherein said bias member is adapted to bias said locking collar in said locking position.