Patent ID: 8221462

Claim:
A prosthetic device for implantation in a vertebral column, comprising: a body comprising a central core member extending laterally along a lateral axis between first and second wing portions extending generally perpendicular to the lateral axis, the core member defining a bore extending through the core member along the lateral axis for receiving a threaded bolt therethrough, wherein the first wing portion is fixedly secured to one end of the threaded bolt and an opposite end of the threaded bolt is at least partially threaded to receive a nut, wherein the threaded bolt extends through the bore of the core member and through the second wing portion and receives the nut to secure the wing portions to the core member, wherein the wing portions have a general teardrop shape, wherein the nut is threaded onto the threaded bolt after passing the threaded bolt through a first hole formed in a lower portion of the second wind portion, wherein upper portions of the wing portions comprise second holes, wherein the second holes are configured to accommodate a fastening device to fasten the prosthetic device to a spinous process when the prosthetic device is implanted, and wherein a pilot hole is located in a central shaft extending throughout the threaded bolt for receiving a micro-lever device for rotating the wing portions from a first position to a second position.