Patent ID: 7862588
Filing Date: 2011-01-04
Classification: A61B

Abstract:
1. A bone fixation assembly, comprising: an elongated interconnecting member; a bone fixation member having a bone anchor adapted to be secured to a skeletal member, and a head that is connected to the bone anchor and that is at least partially contained within an inner housing, wherein the head is movable within an inner aspect of the inner housing; a housing assembly having an interconnecting member-receiving portion that receives the elongated interconnecting member, wherein the elongated interconnecting member can reversibly affix to the housing assembly; the housing assembly further having a seat that seats the inner housing, wherein the inner housing can reversibly affix to the seat of the housing assembly; a deployable locking mechanism adapted to reversibly advance from a first position to a second position relative to the housing assembly, wherein the inner housing is movable relative to the housing assembly when the locking mechanism is in the first position, wherein the inner housing is rigidly affixed to the housing assembly when the locking mechanism is fully advanced to the second position and wherein the locking mechanism is separated from direct threaded engagement with the inner housing; wherein the head of the bone fixation member remains movable relative to the inner housing when the locking mechanism is in any position.