INSTRUMENT FOR PERFORMING OSTEOTOMY OF MAXILLA Russian patent published in 2003 - IPC

FIELD: medical engineering. SUBSTANCE: device has handle and working part manufactured as rod. The device is manufactured from titanium nickelide possessing heating memory properties and has stable rod curved in longitudinal instrument axis plane. The rod is curved in a manner that strait segment branching out from the handle. The segment is bent to 40 deg from the rod; the angle grows to 110 deg with rounding. The part changing its shape is manufactured from blades arranged with cut directed along the rod from its end into depth. The blades have cutting edges on opposite longitudinal sides and are narrowed by 1/3 of rod thickness. EFFECT: improved esthetic and functional results of treatment; lower degree of tissue injury; arranging alveolar process in horizontal position. 3 dwg