FIELD: medicine, particularly, traumatology and orthopedics. SUBSTANCE: this device includes screw whose slit expands symmetrically towards base and is concave and arc-like in cross-section and plane of symmetry and screwdriver having tip which is congruous with screw slit. Alternative embodiment of disclosed invention is characterized in that screws with tapered heads have T-shaped slits. EFFECT: more sophisticated design. 2 cl, 10 dwg
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