Patent RU-2645960-C2 (RU)
Inventor: KARPUSHIN ANDREJ ALEKSANDROVICH
IPC: A61B17/70
Filed: 2015-11-26
Granted: 2018-02-28
Abstract: FIELD: medicine. 
     SUBSTANCE: invention relates to orthopedic vertebrology and is intended for surgical treatment of scoliosis, kyphosis, injuries and spine diseases in growing children. Growing four-plate structure for treating curvatures, injuries and diseases of the spine in children contains four plates, clamps for the spines of the vertebrae, ties, end clamps under the clamps for the spines of the vertebrae, intermediate clamps under the clamps for the spines of the vertebrae, clamps under the couplers, connecting screws for the end clamps under the clamps for the spines of the vertebrae, fixing screws for clamps for screeds, conical nuts for mentioned connecting and fixing screws. Four plates are oblong, elastic, curved respectively physiological bends of the spine, with possibility of lying in pairs along the spine to the right of the left in the paravertebral zones. Plates in pair are overlapped. Protruding ends of the plates have holes for the connecting screws, with the possibility of fastening a pair of projecting end of the plate to the cranial vertebra, and the other to the caudal vertebra. Clamps for the arches of the vertebrae consist of a hook, a threaded column and a conical nut. Hook has a sublaminar bar, pointed and curved upwards, and a supra-lath bar with a threaded hole for a threaded post. Threaded stand is made with a false nut, and also on one end with a self-tapping and a laminar part with a thread on the other end. Intermediate clamps under the clamps for the arches of the vertebrae are U-shaped. One side bar is made of elongated and has outside the tapered hole for the rack and the cone nut, from the inside a recess under the plates adjacent to the web, other lateral bar is made shorter and forms together with the transverse bar and the above-mentioned notch a compartment for a pair of plates with dimensions, they allow the plates to move relative to each other without sticking. End springs under the clamps for the arches of the vertebrae are U-shaped. One side bar is made elongated and has outside a tapered aperture for the posts and a conical nut, and from the inside a recess beneath the plates adjacent to the web. Other lateral bar is made shorter and forms a plate compartment together with the transverse bar and the above-mentioned notch. Bridge between the slats has a tapered hole for the connecting screws. Each screed is made in the form of a flat plate with a pointed end, a semicircular head and threaded holes along the plate for the fixing screw. Screeds are designed to eliminate lateral curvature of the spine. Clamps under the screeds are U-shaped. One side bar is made elongated and has oval hole for the screed. Other lateral bar is made shorter. Plates or plates are placed between the side plates. Clamps are installed in pairs on the right and left pairs of plates. All elements of the construction have a surface covered with titanium oxide 25–30 mcm thick, purified from impurities by electrochemical method. 
     EFFECT: invention provides for the elimination of subcutaneous swelling of the attachment blocks and transverse end plates, achievement of a given and necessary vertebrae deformation in the curvature zone, ensuring the safety of the spinal cord during surgical intervention, ensuring smooth sliding of the working plates in the clamps along the growing spine, ensuring, during the child's growth, sliding plates without a significant shift of the plates up with loss of operational correction of the thoraco-vertebral complex, exclusion of the use of repeated surgical intervention for a long time as the child's physiological growth, creating structure with sufficient elasticity to ensure a constant distraction, ensuring reduction of postoperative complications and shortening of the patient's stay in the hospital, ensuring the accelerated rehabilitation of the patient after surgery. 
     11 cl, 13 dwg