SU1731200A1 - Device for osteosynthesis of intra- and periarticular fractures - Google Patents

Abstract

This invention relates to medicine, in particular to traumatology and orthopedics. The purpose of the invention is to reduce trauma. The device for osteosynthesis of near-and intra-articular fractures contains supporting rings 1 connected with threaded rods, one of which has needles, and the other with a bracket 2 housing with a scale in the form of a sleeve 3 with slots in which a spring-loaded pusher 4 is coaxially mounted threaded rod with a hole under the needle 5 with the stop and mounted on the nut 6. On the threaded rod installed spring 7, which is in contact with the bottom of the sleeve 3 and the bracket plate 2. 1 Cpf-ly, 1 Il.

Description

This invention relates to medicine, namely to traumatology and orthopedics.

A device for treating ocular and intraarticular fractures is known, which includes supports with fixing screws, a threaded distractor, and repositioned rods with anchors.

The disadvantages of this device for osteosynthesis is the inability to provide constant dosed compression of the fragment, depending on the location and nature of the fracture.

A known apparatus for osteosynthesis, comprising threaded rods, two rings, spokes with an emphasis and a threaded sleeve with a spring. This unit is taken as a prototype.

The disadvantages of this apparatus for osteosynthesis is the inability to perform a closed reduction, relative trauma, as it is necessary to hold the locking needles through the fracture line, which increases the risk of infecting soft tissues.

The purpose of the invention is to reduce trauma.

This goal is achieved by the fact that in an osteosynthesis device containing support rings connected to threaded rods, one of which has needles, and the other with an arm using a bracket, with a spoke with an emphasis, the body being designed as a sleeve with slots, in which a spring-loaded pusher with a spit-clamp is mounted coaxially, the bracket is made in the form of a curved plate with a threaded tail and a hole under the body sleeve, which is made with a scale, the pusher is made in the form of a threaded rod with a hole the needle and the nut mounted on it, the needle clamp is designed as a screw, perpendicular to the mounted mow of the threaded rod, the pushrod rod contacting the bracket plate, and the spring mounted on the threaded rod contacts the bottom of the sleeve and the bracket plate.

Thus, the proposed device meets the criterion of novelty.

The use of the proposed device allows achieving a complete anatomical ratio of parts of the joint, keeping the fragments in the correct position and a state of constant physiologically justified one-sided compression for the entire period of treatment for the possibility of movement in the joints from the second day after the operation.

Thus, the proposed device meets the criterion of a positive effect.

When searching in the patent, medical, scientific and technical literature of the bracket in the form of a curved plate with a threaded shank and a hole for the case sleeve with a scale and a pusher, made in the form of a threaded rod with

0 hole under the needle, was not found. This embodiment of the pusher and housing with a scale in conjunction with the rest of the signs as restrictive and distinctive parts of the claims

5 allows one-way constant dosage compression for the entire period of treatment, as well as expansion of indications for use. Consequently, the claimed device meets the criterion of significant differences.

The drawing shows a device for osteosynthesis of near-and intra-articular fractures.

A device for osteosynthesis of about and

The 5 intraarticular fractures contain support rings 1 connected with threaded rods, one of which has needles, and the other with a compression device 2 by means of a bracket 2. The compass device has a housing with a scale in the form of a sleeve 3 with slots, in which a spring-loaded pusher 4 is coaxially mounted, in the form of a threaded rod with a needle hole 5 with an abutment and a nut 6 fixed on it. in contact with the bottom of the sleeve 3 and the bracket plate 2,

The device is used as follows.

0 way.

Under local or conductive anesthesia after reposition of the fragment, a needle 5 is held through it until contact of the stop 8 with the bone fragment. A compression device is put on the end of the spokes over the skin surface. Using bracket 2, the device is rigidly fixed on one of the support rings 1 distal to the proximal part of the joint, depending on the location of the fracture. Rings of the Ilizarov apparatus or an orthosis made of a rug,

By tightening the nut 6 on the threaded rod, a compression is made — the spokes 5 with an emphasis 8 on the fragments.

Features of the compression device with the support rings 1 and the curved shape of the plate of the bracket 2 allow the structure to move in the horizontal and vertical directions, which facilitates and accelerates the work of the doctor. After consolidation of the fracture, unscrew the needle 9, remove the device and remove the needle.

Claims (2)

Claim 1. Device for osteosynthesis of near-and intra-articular fractures, containing support rings connected by threaded rods, one of which has needles, and the other with an arm with a spoke with an anvil on the other, while the body is made in the form of a slot with a slot, in which a spring loaded spit-pushing pusher is installed, characterized in that, in order to reduce 0 five morbidity, the bracket is made in the form of a curved plate with a threaded shank and a hole for the housing bushing, the pusher is made in the form of a threaded rod with a hole for the needle and a nut installed on it, the needle clip is made in the form of a screw perpendicular to the threaded rod axis, and the pusher rod is in contact with the bracket plate, and its spring is mounted on a threaded rod. in contact with the bottom of the sleeve and a curved bracket plate. 2. The device according to claim 1, that is, so that the sleeve is made with an outer scale.