SU1360720A1 - Compression/distraction apparatus - Google Patents

Abstract

The invention relates to medical technology. The purpose of the invention is to simplify reposition while maintaining the rigidity of fixation of fragments. The device consists of a proximal 1 and distal 2 rings having grooves 3 with a degree scale 4 and interconnected by strings 5. The modeling unit 6 has strips 7 with grooves 8 and scales 9, on which strips 10 with grooves 11 and scales 12 are installed. The bars 7 and 10 are interconnected by bolts 13. The use of the apparatus makes it possible to control the deflection of the staples in the transverse and radial directions. 1 il. & (L Yu o: o: yo 72

Description

The invention relates to medicine, breaking up tension knitting needles, and modeling

particular to traumatology, and may be node 6 removed. Screw nuts 5

used for the treatment of fractures and bedriddens, with deflected straps 5

joints of the long tubular bones. Getting to their original position, the purpose of the invention is to simplify 5 what is more in a perpendicular arrangement

reposition while preserving the rigidity of fixation of sticks to the plane of rings 1 and 2. Transition of fragments.

The drawing shows the apparatus, a general view.

The device consists of a proximal 1 and distal 2 rings. Rings 1 and 2 have radial grooves 3 with a degree scale of 4 and are interconnected by screw bolts 5. The device is equipped with a modeling unit 6 including strips 7 with longitudinal grooves 8 and linear scales 10

The displaced straps 5 set the distal ring 2 to the initial position. Together with the distal ring 2, the distal fragment is moved in the opposite direction to the direction of the displacement, and thus the bone fragments are automatically compared to the shortest path averaged for all types of displacements of the trajectory.

In case of angular deformations, the spokes with wires 9, on which an additional 15 d t are installed at a right angle to the axis of the fragments with

body rails 10 with longitudinal grooves 11 and linear scales 12. The rails 7 and 10 are interconnected by means of bolts 13 installed in grooves 8 and 11. Additional rails 10 are connected by threading the blockage of rings 1 and 2 at a deformation angle. When fastening the straps 5, the deviation of the rings 1 and 2 is simultaneously eliminated and thus includes the elimination of the angular deformation in the single core rod 14. The modeling node 6 20 is connected to the shortest matching path with the rings 1 and 2 with the help of bone fragments. Removing the displacement of the bolts 15 and 16 installed in the slots 3. The length includes a single trajectory

moving the bone fragment by simultaneously spreading the rings 1 and 2.

The effectiveness of the apparatus consists in the simplicity of reposition and the possibility of controlling the deflection of the staples in space in the transverse and radial direction.

The device works as follows.

Spokes jc (not shown) are drawn through the bone fragments. The proximal spokes are attached to ring 1, the distal spokes to ring 2 are not attached. The fastening bolt 16 and screw nuts 5 are loosened. The distal ring 2 in slot 3 is displaced, and in the direction of rotational offset NIN by fragment in this plane, oriented with the degree scale 4 at the same time. Rotating ring 2, the ends of column 5 are shifted in the radial direction according to the size of the rotational

Claims (2)

Invention Formula Compression-distraction apparatus containing spokes, spokes locks and interconnected threaded fastener rings with degree scales and radial grooves installed in them displacement of the fragment, fix the bolt 16, and 35 with the possibility of moving the strips from on one of the strips 7 and 10, for example, the distal ones, the bolt 13 is loosened. Through the groove 8, orienting along the linear tongue 9, the distal ring 2 is displaced in the transverse m direction by the amount of the transverse longitudinal grooves and linear scales differing In order to simplify reposition while preserving the rigidity of the fixation of fragments, the device is equipped with a modeling unit, including lisps, and in slot 11 of the bar 10 - the amount of anterior-posterior displacement to the said bars with longitudinal grooves. The bars 7 and 10 are fastened with a fixing bolt 13. When the distal ring 2 is displaced, the screw bolts 5 each time receive an additional deviation and ultimately provide a common deviation for all types of displacements. The distal ring 2 is attached to the distal ring. 45 and linear scales on which additional slats with longitudinal grooves and linear scales are mounted, connected to the main slats by means of a bolt that is movable in the slots of both slats, with the additional slats being connected by a threaded rod. stj to the plane of the rings 1 and 2. Pere The displaced straps 5 set the distal ring 2 to the initial position. Together with the distal ring 2, the distal fragment is moved in the opposite direction to the direction of the displacement, and thus the bone fragments are automatically compared to the shortest path averaged for all types of displacements of the trajectory. In case of angular deformation, the spokes are held at a right angle to the axis of the fragments with d t at a right angle to the axis of fragments with ensuring blockage of rings 1 and 2 at the angle of deformation. When securing the straps 5, they simultaneously eliminate the deviation of the rings 1 and 2 and thereby include the elimination of the angular deformation in the single shortest path for matching the bone fragments. Elimination of displacement in length is included in a single trajectory. Invention Formula Compression-distraction apparatus containing spokes, spokes locks and interconnected threaded fastener rings with degree scales and radial grooves installed in them longitudinal grooves and linear scales, characterized in that, in order to simplify reposition while preserving the rigidity of fixation of fragments, the apparatus is equipped with a modeling unit, including leveled bars with longitudinal grooves mentioned longitudinal slots and linear scales on which additional slats with longitudinal grooves and linear scales are mounted, connected to the main slats by means of a bolt that is movable in the slots of both slats, with the additional slats being connected by a threaded rod.