Patent ID: 8460307
Filing Date: 2013-06-11
Classification: A61B,B25B,Y10S

Abstract:
1. A driver for inserting a bone screw, the driver comprising: a handle; a driver sleeve including a longitudinal axis, an axial bore, a threaded distal end to threadably engage the bone screw, a bore extending in a direction transverse to the longitudinal axis, and a sphere seated within the bore; an inner driver axially moveable within the driver sleeve, the inner driver having a drive structure to drive the bone screw and a recess to engage the sphere; and a release mechanism that is fixed to at least a portion of the driver sleeve such that the release mechanism is not rotatable around the longitudinal axis independent of the driver sleeve and the release mechanism is configured for selectively coupling and uncoupling the driver sleeve relative to the inner driver, such that when coupled the sphere is engaged within the recess and moveable within the recess in a direction along the longitudinal axis and the rotation of the driver sleeve axially translates the inner driver with respect to the bone screw, thereby pushing the bone screw off of the inner driver.