Patent ID: 8137389

Claim:
A bone screw comprising: a monolithic tubular body having a first end and a second end and a cavity extending entirely through the monolithic tubular body from the first end to the second end, the monolithic tubular body comprising a tubular wall defining the cavity with a plurality of recesses entirely through the tubular wall to the cavity; an exterior bone thread on an exterior tubular surface of the tubular wall; an interior tubular surface of the monolithic tubular body extending inwardly from each of the first and second ends; a head configured to engage with a driver, the head also configured to directly connect to the interior tubular surface at the first end of the monolithic tubular body in a first arrangement and at the second end of the monolithic tubular body in a second arrangement; and a tip configured to directly connect to the interior tubular surface at the first end of the monolithic tubular body in the second arrangement and the second end of the monolithic tubular body in the first arrangement; wherein the tip is connectable with the monolithic tubular body independently of the head; wherein the interior tubular surface at each of the first and second ends of the monolithic tubular body comprises an interior thread; wherein the monolithic tubular body has an entire length from the first end to the second end and the exterior bone thread extends over the entire length of the monolithic tubular body.