SU874043A1 - Compression-distraction apparatus - Google Patents

Description

The invention relates to osteoarticular surgery, in particular to devices for treating injuries and diseases of joints and bones of limbs.

A known compression-distraction apparatus comprising support rings® with spokes retainers and at least one additional ring consisting of two half rings having sockets for threaded rods fl}.

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A disadvantage of the known device is that the installation of additional rings in the treatment process on the assembled apparatus is a laborious process.

The purpose of the invention is to reduce the time required to install additional rings on the apparatus during treatment.

This goal is achieved by the fact that in the compression-distraction apparatus containing support rings with clamps of spokes and at least one additional ring consisting of two half rings having nests for threaded rods, the nests are located on the inner side of the ring, and their side walls are outlined in an arc of a circle drawn from the center of the extreme nest of the corresponding semicircle.

In FIG. 3 shows the apparatus, a general view; in FIG. 2 - the site of attachment of threaded rods to split rings; in FIG. 3 is a diagram of the installation of an additional ring on a threaded rod.

The apparatus consists of support rings 1, interconnected by threaded rods 2. On the rings 1 are mounted latches 3 spokes 4.

An additional ring 5, consisting of two half rings, can be installed on the apparatus. On each half ring, slots 6 and 7 are selected, while the side walls of socket 7 are made along an arc of a circle, for example, with a radius R drawn from the center of the extreme socket 6 of the corresponding half ring '.

³ 874043 4

The apparatus is used as follows; body rings without disassembling the device.

A limb is placed in a device without spokes. The apparatus is set to the position necessary for imposing $ limb. Spokes 4 are passed through the bone and fixed with knitting needles.

The installation of the half rings of the ring 5 begins with the landing of the socket 6 on the threaded rod. 2 (Fig. 3). Leaning on a threaded rod, turn the semicircle relative to the latter and start nests 7 on the threaded rods.

Providing a second half-ring ₁₅ carried schestvpyayut similarly.

After that, the ring 5 with nuts is attached to the threaded rods, "

. When replacing threaded rods, the last ²⁰ are removed from the rings through the sockets, after loosening the nuts'.

The proposed apparatus is easy to operate, allows the installation of additional and change threaded rods.

Claims (2)

(54) COMPRESSIONAL DEVICE The invention relates to osteo-articular surgery, in particular, devices for treating injuries and diseases of the joints and bones of extremities. A compression-distraction apparatus is known that contains support rings with knitting needles and at least one additional ring, consisting of two half-rings with sockets for threaded rods UJ The disadvantage of the known device is that the installation of additional rings during the treatment process on the assembled apparatus is difficult m KIM process. The purpose of the invention is to reduce the time required for installing db-additional rings on the apparatus during the treatment process. This goal is achieved by the fact that in a compression-distraction apparatus, containing support rings with spokes detents and at least one additional ring consisting of two half-rings with sockets. Under the threaded rods, the sockets are located on the inner side of the ring, and the side their walls are outlined along an arc of a circle drawn from the center | a of the outermost nest of the corresponding semiring. FIG. T shows the apparatus, a general view; in fig. 2 shows an assembly for fastening threaded rods to split rings} in FIG. 3 is a diagram of the installation of an additional ring on a threaded rod. The device consists of support rings 1 interconnected by threaded rods 2. On the rings 1 there are fixers 3 of the spokes 4. An additional ring 5 consisting of two half rings can be installed on the device. On each semiring, sockets 6 and 7 are selected, while the side walls of nest 7 are made along an arc of a circle, for example, with a radius R, drawn from the center of the extreme nest 6 of the corresponding semiring. 3 Ai; mdpaT use the following method. In the assembled bee spokes apparatus stack limb. The apparatus was installed - 8Shot S required for the presentation on hockechnosti position. The spokes 4 are conducted through the bone and the spitseder joints are fixed to them, U: The installation of half rings of ring 5 begins with the landing of the socket b on the threaded rod 2 (4ig. 3). Bearing on the threaded rod, turn the half-wheel relative to the latter and wind up gn-edd 7 on the threaded rods. The installation of the second half-ring is carried out in the same way. After that, ring 5 is fastened to the threaded rods with nuts. . When replacing the threaded rods, the latter are removed from the rings through the slots by first loosening the nuts. The proposed apparatus is easy to operate, allows the installation of additional rings without disassembling the apparatus and changing the threaded rods. Claims Compressor-distraction apparatus, containing support rings with spokes locks and at least one additional ring consisting of two half-rings, which have sockets for threaded rods, characterized in that, in order to shorten the Time to install additional rings on the apparatus in the process of treatment, the nests under the threaded rods are located on the inner side of the ring, and their side walls are outlined along a circular arc drawn from the center of the extreme nest of the corresponding semiring. Sources of information accepted in the examination 1. USSR author's certificate No. 506405, cl. A 61 B 17/18, 1973.