US Patent 9204910 Telescoping bone screw

A bone screw for treating a bone fracture having a plunger assembly and a detent assembly on a body portion thereof. The detent assembly includes a detent member that is movable between a first and second position. The plunger assembly includes a threaded engagement portion and a plunger portion. The plunger portion is slidably disposed within a chamber of the body. The detent assembly operative to secure the body whereby said plunger portion moves independent of said body.