MODULAR DEVICE FOR EXTRAFOCAL OSTEOSYNTHESIS OF LONG BONE FRACTURES Russian patent published in 2017 - IPC A61B17/66 A61B17/60 A61B17/62 A61B17/64 

FIELD: medicine.

SUBSTANCE: modular device for extrafocal osteosynthesis of long bone fractures contains at least two annular base supports and several repositional semirings connected by four threaded rods, parts of the standard set of Ilizarov apparatus. The device has U-shaped staples with a threaded hole in the jumper for the threaded rod and the distance between the legs corresponding to the width of the repositional semirings. The repositional semirings are made separable and consist of an outer and an inner segments. The segments are connected together by U-shaped staples and nuts pre-installed on the threaded rods. The outer and inner segments are made with docking cylindrical surfaces along the middle arc-shaped part of the semiring with semicircular notches formed on them forming the holes during the assembly. The inner segments have holes at the ends for bolts with nuts to join semirings into rings.

EFFECT: increased effectiveness of treatment of patients with long bone fractures, especially under conditions of polytrauma, stronger fixation of fragments of long bones in the repositioning position, rotational and axial stability of fragments of fragile compression, if necessary - mounting or dismantling additional modular semirings and rings without complete dismantling of the apparatus of external fixation by Ilizarov while performing repeated operational aids and bandagings.

9 dwg