Patent ID: 8603094

Claim:
A system for spinal stabilization, comprising: a percutaneous access device including: an outer sleeve having a proximal slot and a distal slot; an inner sleeve having a proximal section and a distal section, the proximal section being operably connected to a spring latch having a tab member, the proximal section including a threaded portion, the distal section including a slot and a pair of compressible grasping elements, each of the grasping elements including slits, an internal tapered surface, and an internal protruding member capable of being received in an aperture in a head of a screw member, wherein the inner sleeve is configured to be slidably received into the outer sleeve such that the spring latch is located within the proximal slot of the outer sleeve and the slot of the inner sleeve is aligned with the distal slot of the outer sleeve; and a lock nut having an internal engagement surface for engaging the threaded portion of the inner sleeve, wherein placement of the lock nut at a bottom section of the threaded portion of the inner sleeve results in compression of the grasping elements, and wherein the internal engagement surface is configured to interact with the tab member via depressions to limit counter rotation of the lock nut during use; a cannulated screw member attachable to the inner sleeve, the cannulated screw member comprising a head portion coupled to a shaft, wherein the head portion includes a seat for receiving a rod member, one or more apertures for receiving the internal protruding member of the inner sleeve, and at least one slot for interacting with the internal tapered surface of the inner sleeve; a screw driver for rotating and driving the screw member into a bone; a rod insertion device including a handle and a distal gripping end for gripping and delivering a rod member; an anti-torque device including a handle connected to a cannula, wherein the cannula is configured to be placed over the outer sleeve, and wherein the cannula includes a side slot for engaging the rod member; and a persuader device that can interact with the anti-torque device and assist in forcing the rod member into the seat of the screw member, the persuader device having a hollow interior and internal threads.