Screw driver with release for a multiaxial bone screw

A screw driver with a release for driving a multi-axial bone screw into a vertebra of a spine, the bone screw including an elongate shaft having a threaded screw portion at the distal end and a screw head at the proximal end, and a yoke articulatingly attached to the screw head, the yoke having a slot therethrough for receiving a connecting rod, the yoke having screw head having a recess therewithin, said screw driver comprising:

• an elongate shaft having a distal end and a proximal end, said shaft defining a driving tip at said distal end configured to engage the recess within the screw head for rotation thereof;
• a screw engagement member affixed to said shaft for joint rotational movement therewith, said screw engagement member comprising a releasable retention member for releasable attachment to said yoke;
• and
• a release member disposed about said in elongate shaft comprising a hollow elongate grip sleeve and a hollow elongate push sleeve joined together for common axial movement along said elongate shaft, said grip sleeve being freely rotatable about said elongate shaft and said push sleeve being rotatable relative to said grip sleeve and engaged with a proximal portion of said elongate shaft for joint rotational movement therewith.