SU1724196A1 - Appliance for reduction of lower limb bone fragments - Google Patents

Abstract

A device for repositioning bone fragments of the lower extremity is intended to provide for the operation of transosseous osteosynthesis. The device comprises a support frame 1 with lodgments 6, 7 of the femur and tibia and pivoting U-shaped posts 16, 28 adjustable along the length with tension nodes 15, 27. The posts 8 and 29 adjustable along the length of the device are installed in the device; movements of inclination and fixation on the frame 1. Moreover, on the free ends of these racks 8, 29, lodgments 6, 7 of the thigh and tibia and X-ray cassette 30 are placed. 7 ill. Well IS

Description

The invention relates to medical technology, namely to traumatology and orthopedics.

The purpose of the invention is to provide an operation of transosseous osteosynthesis.

FIG. 1 shows a device for repositioning bone fragments of the lower limb; in fig. 2 is a view A in FIG. in fig. 3 - section bb in fig; in fig. k is a section bb In figure 1; in fig. 5 is a section of YYD in FIG. it; in fig. 6 is a section d-d in figure 1; in fig. 7 —a section EE of FIG. 2

The device for repositioning bone fragments of the lower extremity contains a supporting frame 1, made in the form of an external contour 2, an internal raised contour 3, an internal longitudinal crosspiece C and short inclined bridges 5. All elements of the frame 1 are made of steel tubes welded to each other. The raised inner contour 3 is intended to fasten on it other elements of the device, and the external contour 2 to rest on the patient's bed or

The U-shaped stand 16, which is fixed to the holes on the pipes of the internal contour 3 of the frame 1 by means of removable bolts 1, is provided with lower ends of the U-shaped stand 16 with a number of holes 18 for bolts 17. The stand 16 is supported by two lateral straps 19. ,

each of which is fastened to the upper end by means of a bolt 17 on the stand 16 and the lower end on the inner contour 3 of the frame 1. In the upper part of the stand 16 a crossbar is fixed

5 20 with a running nut 21, installed with the possibility of rotation in the vertical plane. A tensioning screw 22 is screwed into the running nut 21 and is rotatably connected.

the cutter 23, which is fixed needle 2k. The crossbar 20 is fixed by means of the screws 25 with the possibility of rotation, and the end of the tension screw 22 is fixed on the spoke5 holder 23 by means of pins 26.

The exact tensioning unit 27 is made similarly to the knee tensioning unit 15 and also contains a U-shaped stand 28 and the same elements and with

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on the operating table. Such a design is 30 unity. To ensure the x-ray of the support frame, the control stand 29 is facilitated by a decanter;

for X-ray systems, 30, and the rack 29 is made and mounted on frame 1 in the same way as rack 8.

A device for repositioning bone fragments of the lower limb is used as follows.

Pre-adjust the location of the cradle 6, 7 by selecting

to the position and length of the pillars 8. Install the U-shaped pillars 16 and 15, so that in accordance with the individual characteristics of the lower limb of the patient and with the features of hip and tibial fractures

provide a stretch of the thigh and tibia along the bones. After placing the lower limb on the lodgements 6, 7, the 2k knitting needles are installed in the knee joint and in the pc. First, the thighs are pre-tensioned, then the shins, then the X-ray images are taken and the required amount of movement of the bone fragments is determined. Make the appropriate number of turns of the tension screws 22, taking into account the thread pitch of these screws. After that, install devices for transosseous

device, the permutation of other elements to account for the individual size of the patient's lower limb. On the frame 1, there is an attached lower leg 6 thigh and 7 lower leg lodgement, each of which is made in the form of a cylindrical plate installed by means of a folding stand 8 on the longitudinal bridge k. Each rack 8. is made with adjustable height, which is provided by rotating the sleeve 9. Quickly removing the cradles 6 and 7 for the period of the X-ray survey, there are quick-detachable assemblies with stop screws 10 and 11. To fix the posts 8 in the transverse direction into the frame 1, they are welded longitudinal rod 12 of angular section. To quickly clean the cradles 6 and 7, release screws 10 and 11, lower glass 13 together with screw 11 and raise cracker 14, tilt the stand, while cracker Ik rotates together with stand 8.

The device comprises a knee tension assembly 15, which is made in

Claims (1)

SUMMARY OF THE INVENTION A device for reposition of bone fragments of the lower extremity, comprising a support frame with lodgements of the thigh and lower leg and length-adjustable rotatable U-shaped legs 1724196, with which rotary tension nodes are connected, characterized in that, in order to ensure transosseous os5 synthesis, length-adjustable racks installed at one end with the possibility of longitudinal movement, tilt and fixation of 1Q on the frame are introduced into it; moreover, lodgements of troubles are placed on the free ends of these racks and a lower leg, with the possibility of turning and fixing. β-β ⁴ kC ^ 7- ^ 7 <Rie. ~ Fa G. δ Fich., 7