DEVICE FOR TREATING PATIENTS SUFFERING FROM INJURIES AND CONSEQUENCES OF INJURES OF PROXIMAL FEMUR Russian patent published in 2014 - IPC A61B17/60 A61B17/78 A61B17/90 A61B17/88 

FIELD: medicine.

SUBSTANCE: device consists of pins, a compression screw shaft, a retractable screw nail for the greater trochanter and a screw nail for the middle one-third of the femur, an adjusting pin guide and a removable support. The removable support is presented in the form of a plate with grooves inclined to the plate plane, holes for the adjusting pin guide and for the pins; the latter are bolted in these holes, and a hole for the compression screw shaft, which is fastened in this hole by screws and washers. The adjusting pin guide is presented in the form of an elongated sleeve with a collar at one end. The above screw shafts are mounted on the plate and gradually movable in three directions by sliding bars, thread rods, bolts and cuffs. The sliding bar moves in the plate groove by the thread rod arranged in the screw hole of the sliding bar and mounted on the plate. The screw shaft is pivotally connected to the sliding bar with a cylindrical hollow created in the sliding bar, wherein there is a ball-end and a through-hole bolt; the through hole comprises the thread rod arranged on the sliding bar. The bolt is connected to the screw shaft by means of the cuff. The pins and compression screw shaft consist of two portions, submersible and outer detachable ones, connected by a threaded connection. The submersible portion has a thread on a section length screwed into the femoral fragment only, and comprises a stop nut. The submersible portion of the pins has a hydroxyapatite coating.

EFFECT: invention provides the angular positioning of the screw shafts in relation to the support enabling inserting fixation elements into the bone in the preset direction, thereby providing the compression at the junction between the bone fragments followed by the intraoperative disassembly of the support and an outer portion of the fixation elements.

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