DEVICE FOR BONE FRAGMENT REDUCTION IN ILIZAROV'S APPARATUS Russian patent published in 2016 - IPC A61B17/66 

FIELD: medicine.

SUBSTANCE: invention refers to medical equipment, namely to devices applicable in traumatology and orthopaedics. A device for bone fragment reduction in an Ilizarov's apparatus represents a reduction unit substituting threaded bars connecting external supports of the Ilizarov's apparatus and consists of a plate, two threaded bars (long and cross), supporting arms and nuts, and provides a precision and gradual three-plane displacement of one (distal bone fragment or extremity segment in relation to the other (proximal) bone fragment or extremity segment. The distal fragment or extremity segment is displaces along the length and axis by screwing the nuts on the long threaded bar, and across the width - on the cross one. Besides, the long threaded bar is fixed with two supporting arms and nuts on the plate that ensures an adequate degree of security for the precision displacement of the distal fragment or extremity segment and prevents deformities and strain distortion in the Ilizarov's apparatus system under the action of extremity muscle traction that is caused by the three-point fixation of the long bars.

EFFECT: invention ensures higher effectiveness and reduces the length of treatment of the patients with the Ilizarov's apparatus.

6 dwg