Patent ID: 8287546

Claim:
A surgical instrument, comprising: an alignment tube constructed for receiving a driver; an alignment tube connection mechanism; a sliding bar connectable to said alignment tube via said alignment tube connection mechanism, said alignment tube being lockable to said sliding bar by said alignment tube connection mechanism such that said alignment tube intersects said sliding bar at a first angle, wherein said first angle is adjustable by said alignment tube connection mechanism, wherein a portion of said sliding bar comprises teeth; a shaft having a threaded hole; a pivot locking knob having a threaded end complementary to said threaded hole of said shaft; and an elongated body having an opening constructed for accommodating said sliding bar, a gear mechanism for engaging said teeth of said sliding bar inside said elongated body, and a shaft connection mechanism for joining said shaft, said pivot locking knob, and said elongated body, wherein said shaft is movable about a pivot, wherein said shaft is lockable at a second angle relative to said elongated body utilizing said pivot locking knob, wherein said second angle is adjustable, and wherein turning said gear mechanism which is engaged with said teeth of said sliding bar changes a linear distance between said shaft and said alignment tube.