System and Method for Insertion of an Interspinous Process Implant that is Rotatable in Order to Retain the Implant Relative to the Spinous Processes

摘要

The present invention is directed to a device that is implanted between the spinous processes of adjacent vertebrae of the spine and used for relieving pain associated with the vertebrae and surrounding tissues and structures by maintaining and/or adding distraction between adjacent vertebrae. The present invention includes a tissue expander adapted to move from a first insertion position, for ease of implantation between spinous processes, to a second retention position that prevents displacement of the implant.