Patent ID: 8075593

Claim:
An interspinous implant for placement between spinous processes of symptomatic disc levels comprising: a) a shell having opposed upper and lower shell portions defining an interior cavity having four interior guide tracks that terminate in openings formed in the shell, wherein a pawl is located adjacent to each opening in the shell; b) four deployable ratcheting locking wings slidably coupled in a respective interior guide tracks and adapted for movement between: i) a stowed position in which the locking wings are disposed within the interior cavity of the shell; and ii) a deployed position in which the locking wings extend outward from the interior cavity of the shell through the openings formed therein, and wherein each locking wing has a set of ratchet teeth for engaging the pawl adjacent the opening through which it extends; c) a pair of coaxial locking wheels rotatably mounted in the shell to selectively exert a force against each locking wing to move the locking wings from the stowed position to the deployed position; and d) deployment cable coupled to the wheels to actuate rotation of the wheels.