An intermediate element for a detachable, lockable, ball joint-like connection in a device for the dynamic fixation of bones has a longitudinal axis, an outer wall concentric with the longitudinal axis, and an inner wall forming a coaxial cavity. Either the outer wall or the inner wall comprises one...http://www.google.de/patents/US8075600?utm_source=gb-gplus-sharePatent US8075600 - Device for the dynamic fixation of bones
