COMPRESSION-DISTRUCTION APPARATUS Russian patent published in 1996 - IPC

FIELD: traumatology and orthopedics for reposition and fixation of fragments of long tubular bones. SUBSTANCE: the device uses carrier adjusting external and internal rings with traction wires and traction wire holders braced by threaded bolts, and a gear train used for displacement of the internal ring relative to the external one. Secured uniformly circumferentially on the internal ring are brackets, whose grooves accommodate the external ring for radial displacement and fixation by bolts; the gear train represents a pair of toothed segments secured diametrically oppositely on the internal ring between the brackets, and gears with detachable adjusting keys whose axles are installed in the holes of the external ring. EFFECT: enhanced reliability. 2 cl, 1 dwg