RU50403U1 - DEVICE FOR OSTEOSYNTHESIS OF KEYS - Google Patents

Abstract

A useful model - a device for osteosynthesis of the clavicle - is aimed at providing the possibility of treating patients with its chronic injuries and pseudoarthrosis / The noted effect is achieved due to the fact that the device contains interconnected threaded rods with special fixators installed on them, equipped with a compression unit made in the form of connected with the possibility of displacement of the threaded rods and a flexible rod fixed at the end of one of them

Description

A utility model - a device for osteosynthesis of the clavicle - relates to medical technology and can be used in the treatment of patients with pathology of this segment.

Known compression and distraction apparatus, containing a threaded rod mounted on it with the ability to move the special fixators and knitting needles (A. S. USSR No. 1715333, publ.: 02.27.92., Bull. No. 8).

However, this apparatus is intended primarily to increase the longitudinal dimensions of the bone segments.

A known apparatus for the treatment of collarbone fractures, containing threaded rods interconnected by a connecting node, special fixators with spokes and fastening elements mounted on them. (The certificate of the Russian Federation on PM No. 30074, publ.: 06.20.03., Bull. No. 17).

However, this device does not provide sufficient compressive force at the junction of the fragments, which does not allow its use in the treatment of chronic fractures and false joints of the clavicle:

The objective of the utility model is to develop a device for osteosynthesis of the clavicle, providing the possibility of treating its chronic injuries and false joints.

This problem is solved in that the device for osteosynthesis of the clavicle, containing interconnected threaded rods mounted on the rods, spoke fixators with spokes, as well as fastening elements, is equipped with a compression unit made in the form of threaded rods connected with the possibility of displacement and fixed at the end of one of them flexible traction.

The utility model is illustrated by the description and diagram, which shows:

Figure 1 - device for osteosynthesis of the clavicle, General view.

The device for osteosynthesis of the clavicle (Figure 1) contains threaded rods 1 and 2, interconnected by means of straps 3 and 4 with holes 5. On the threaded rods 1 and 2 are placed special fixers 6 with knitting needles 7.

The compression unit is made in the form of rods 8 and 9 interconnected with the possibility of displacement using the strap 10 with holes 11, while the rod 8. is fixed in the hole 5 of the strap 4, and a flexible rod 12 is fixed at the end of the rod 9.

For fastening and moving parts of the device on the threaded rods - 1, 2 and 8, 9 installed nuts 13.

The device is used as follows.

After anesthesia and processing of the surgical field, through a minimum incision of the integumentary tissues, access to the area of damage to the clavicle is performed and produced. resection of scarred tissue from inter-fragment diastasis. Comparing the fragments, from the side of the acromial end, intramedially, through the damage zone, into both fragments with access to the external surface in the area of the sternal end, a flexible rod 12 is introduced, and the spokes 7 are fixed to the distal fragment, cantilever, fixing one. One end of the rod 12 (from the side of the acromial fragment) bend in the form of a thrust pad and immerse under the skin, and the other is attached to the end of the rod 9. At the same time, the free ends of the spokes 7 cantileverly inserted into the acromial fragment are fixed in the spoke 6 mounted on the threaded rod 1. Then, by rotating the nuts 13, fixing the position of the rod 9 in the hole 11 of the strap 10, produce its axial displacement, resulting in tension of the rod 12 and creates a compressive force at the junction of the clavicle fragments. Similar conditions can be achieved by moving the bar 10 along the rod 8 or the rod 8 relative to the bar 4. These manipulations are also performed by rotating the fastening nuts 13, fixing the position of these parts. After creating a compressive force, the sternum fragment of the collarbone is additionally fixed with cantilever-inserted knitting needles 7, the free ends of which are fixed in a special fixator 6. The operation is completed by suturing the wound, performing follow-up radiography and stabilizing the device nodes.

 In the postoperative period, stable fixation of the fragments is carried out until they are fully consolidated, while maintaining a compressive force between them due to the simultaneous tension of the flexible rod 12 and the displacement of the rods 1 and 2 relative to each other 1.0 mm 1 time every 10-14 days. Dismantling the device is carried out in the reverse order.

The use of the device for osteosynthesis of the clavicle in the clinic of the RRC "WTO" Acad. G.A. Ilizarova showed that its use provides the possibility of successful treatment of patients with its chronic fractures and false joints.

Claims (1)

A device for osteosynthesis of the clavicle, containing interconnected threaded rods mounted on the rods, spoke fixators with knitting needles, as well as fastening elements, characterized in that it is equipped with a compression unit made in the form of threaded rods connected with the possibility of displacement and a flexible rod fixed at the end of one of them .