SU1084017A1 - Apparatus for correcting spinal column - Google Patents

Description

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The invention relates to medical technology, namely to surgical devices in orthopedics and traumas, and can be used in the surgical treatment of injuries and diseases of the spine. A device for the correction of the spine is known, which contains a spa: screw helix braces, interconnected distractors installed in spherical hinges and tensioned with cables 1. However, this device does not allow reposition of the rotated vertebrae. It is also known a spine correction device containing a frame and distraction and reposition mechanisms arranged thereon with pairwise paired blocks of grips 2. However, the known device does not provide dosed compression of the vertebrae along a convex curvature of the curvature since it is impossible to synchronously move the reposition mechanism in the transverse direction. The purpose of the invention is to provide the possibility of carrying out a metered compression of the vertebral bodies along a convex curvature arc. The goal is achieved in the device for correcting the spinal column, which contains a frame with a movable bar and mechanisms of distraction and reposition with paired couples of the block of grippers placed on it, the blocks of grips are interconnected by a connecting bar, and pairwise paired blocks of the grips of the mechanism of coupling They are hinged with a movable frame frame with threaded studs, while the claws are made with the throat and are connected hinged to each other. FIG. 1 shows the device, a general view; in fig. 2 shows a distraction mechanism with a gripper block, section A-A in FIG. one; FIG. 3 is a reduction mechanism with a gripper block, section BB in FIG. one; in fig. 4 - overlap of the gripper blocks on the transverse processes of the vertebrae; in fig. 5 - Var of the double curvature scoliosis device. The device for spinal correction contains frame 1 and distraction mechanism 2 and adjusting mechanism 3 placed on it. Frame 1 consists of two threaded guides 4 with flat ends 5 rigidly connected at the ends with each other b. The distraction mechanism 2 is made in the form of two brackets 7, movably mounted on threaded rails 4 with nuts 8. On brackets 7, there are movable strips 9 with straight grooves 10. On the planks 9 using a threaded rod 11 and nuts 12, the block 13 of the grippers 14 is fixed The guiding mechanism 3 contains soy; a singular bar 15 with a block of 13 grippers 14 fixed on it, the connecting bar 15 is mounted on brackets 16 with the possibility of displacing the frame 1 in the transverse direction by means of longitudinal grooves 17 and screws 18. 14 is fixed on the strap 15 by the pins 11 and spherical hinged nuts 19. The connecting strap 15 with the block 13 of the claws 14 together with the brackets 16 can be moved along the frame 1 in one direction or the other along the threaded rails 4. If necessary, the blocks 13 of the grippers 14 are made as for of the distraction mechanism and for the adjusting mechanism are the same and are paired lugs 14 with hooks 20. The lugs 14 (right and left) are connected to each other in a pair by a hinge 21 with a threaded hole, and the pair are 22 s threaded ends. The brace 22 is provided with studs 11 with nuts 12 and spherical hinge nuts 19. The device for the correction of the spine is used as follows. In the area of the bases B and the apex of the arc of curvature of the spine, the transverse processes of two adjacent vertebrae are exposed, and in each base, the transverse processes of one healthy vertebra are exposed. Then the transverse processes of the adjacent vertebrae of the bases B and the vertex G of the curvature arc impose blocks 13 of the grips 14 (Fig. 4), and on the overlying vertebra the hooks 20 are applied from the cranial surface of the transverse process, and to the underlying vertebra from the caudal surface of the transverse process. The connecting straps 22, depending on the size of the vertebrae, regulate the distance between the pairs of grips 14 along the width of the vertebra at the base of the transverse processes. After that, the clamps 14 are tightened up to the stop of the hooks 20 at the base of the transverse processes of the adjacent vertebrae and fixed with a stopper 23, and the studs 11 are screwed into the connecting straps 22, pulled out of the wound and sewn up tightly. Then, the adjustment device is applied to the withdrawn pins of the blocks 13 of the grippers 14 in the following order: the pins 11 of the blocks 13 of the grips 14 fixed to the bases B of the curvature arc are fastened with the bars 9 of the brackets 7 and fixed them with nuts 12; on the studs 11 of the blocks 13 of the arms 14, fixed on the top of the curvature arc, a bar 15 is placed, fixed and fixed on the brackets 16 and fixed with nuts 19. The correcting device in the spinal part of the spine, d. martial order First, distraction is made along the concave side of the curvature arc by moving the brackets 7 with the strips 9 to the end of the frame 1 until the deformity of the affected part of the spine is completely eliminated in the frontal band by nuts 24. Further distraction is performed simultaneously along the concave and convex sides of the curvature before the intervertebral spaces expand by the required amount. The guiding mechanism produces derotation of the rotated vertebrae of the bowel. With rotated vertebrae, a block 13 of the arms 14 is mounted on them in such a way that the studs 11 are in spherical hinge nuts 19 at different levels, eliminating the rotation of the rotated vertebrae, you must install the studs 11 in the spherical hinge nuts 19 at the same level. To do this, these nuts are rotated in different directions (right, left) until the fully rotated vertebrae are repaired. direction in the direction opposite to the arc of the curved laziness of the spine. Compression of the vertebrae of the affected area of the spine (the action opposite to distraction) is performed after a complete correction of the arc of curvature, i.e. after distraction, by means of the distraction mechanism 2, by moving the brackets 7 in the direction opposite to the distraction (to the bar 15) using nuts 24 and 25 until full contact of the vertebral body parts along the convex side of the curvature arc. The locking pads in the proposed device, made in the form of paired blocks, provide not only the distraction of the arc of the curvature of the spine, but also dosed compression, which makes it possible to significantly shorten the treatment time for scoliosis, and also ensure reliable derotation of the rotated vertebrae of the spine. The presence in the setting mechanism of 3 spherical hinged nuts 19 ensures the self-installation of the studs 11 from the block 13 of the grips 14 mounted on the rotated vertebrae, which contributes to reliable derotation of the rotated vertebrae. Connecting pairs of grips 14 to block 13 with a clamp 22 with threaded ends allows installation, block 13 grips 14 on any vertebrae of any size, at any patient's age. Fig. 5), which is the proposed device, equipped with additional mechanisms for reducing 3 and distraction 2, the proposed device provides not only a distortion of the curvature of the spinal cord, but also metered compression, allowing It is important to shorten the treatment time for scoliosis, and also ensures reliable derotation of the rotated vertebrae.

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Claims (1)

(57) A DEVICE FOR CORRECTION OF A SPINE, comprising a frame with a movable bar and mechanisms of distraction and reduction placed on it p. in pairs paired grips and gripper blocks, characterized in that, in order to ensure the possibility of dosed compression of the vertebral bodies along a convex curvature curve, the gripper blocks are connected to each other by a connecting bar, and the paired paired gripper blocks of the reduction mechanism are connected to the movable bar of the frame by threaded rods pivotally while the grips are made with a pharynx and are pivotally connected to each other.