External fixator for the repositioning and stabilisation of bone fragments.

摘要

The present invention concerns an external fixator for the repositioning and stabilisation of bone fragments consisting of a fixation loss (3),on which two fixation units (2) can be fixed relative to each other in any relationship situation.The fixing units (2) consist of a clamping part (5), in which Schanz screws (4) are clamped, and a riding part (6) with a housing (7), in which a ball (8) is stored.By means of a clamping screw (22), the Schanz screws (4) are fixed to the clamping part (5),while a locking screw (14) presses the ball (8) and thus the relative position of the shank screws (4) relative to the fixture bar (3) both in transverse direction and in any Wiangle position to the fixation loss (3) is fixable.All parts are suitable for mass production by being manufactured as plastic or metal pressure parts, thus creating an extremely inexpensive external fixture,which is suitable for single use as well as easy to use for the operator.