SU448012A1 - Device for the operative treatment of leg bone fractures - Google Patents

Description

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

A device for the operative treatment of shin bones fractures is known, comprising a sliding frame, an alternate support with a tilt-adjusting bracket, a foot fixation and stretching mechanism consisting of a support plate, longitudinal and vertical displacement drives.

However, such a device does not provide rigid fixation of bone fragments.

The aim of the invention is to provide the possibility of simultaneous reposition and distraction in diaphyseal fractures of the bones of the tibia with the elimination of the displacement of peripheral fragments.

For this, the proposed device is equipped with a detachable collar having an inner rectangular contour with rounding, the underfold support has guide posts and pins that are hinged to the support, the foot fixation and extension mechanism has spherical supports and screw pairs pivotally connected to each other, and also rotation and a bracket with a groove rigidly connected to the base plate.

FIG. 1 shows schematically the proposed device for the operative treatment of fractures of the bones of the leg, general view; in fig.

2 is a view along arrow A in FIG. one; in fig. 3 shows a section along B - B in FIG. one; in fig. 4 is a view along arrow B in FIG. 1. The device comprises a sliding frame 1;

lower leg 2, having racks 3 guides 3 and pins 4 pivotally connected to the leg; a foot fixation and extension mechanism, having spherical supports 5 and screw pairs, 6, pivotally interconnected, as well as a rotation axis 7 and a bracket 8 with a groove a rigidly connected to the support plate 9; split collar 10 having an inner rectangular contour with rounding.

The device is used as follows.

The fixed (left) part of the frame 1 is fixed on the operating table. Then the under-bear support 2 is set using

bracket 11 and pins 4 in the desired position in tilt and height. The patient is placed on the table, the movable part of the frame 1 is brought to the foot before contact with the supporting plate 9 and secured with screws 12. Then

With the help of the bracket 13, the collar 10 and the hinged screws 14, the upper metaphysis section of the tibia is fastened and fixed with the screw 15 the collar. The patient's foot is pressed against the support plate with a collar 16 and the ankles are fixed with the help of a spherical support 17, a screw

18, nuts 19 and 20. The manipulator is nut 21 and screw 22, is pulled out.

The device allows simultaneous reposition and distraction in case of diaphragmatic fractures of the lower leg bones, open and closed metal-stent synthesis, the imposition of compression-distraction apparatus, and control radiographs.

Subject invention

A device for the operative treatment of fractures of the shin bones, containing a sliding frame, an under-leg support, a mechanism for fixing the foot and stretching, including

base plate, longitudinal and vertical movement actuators, characterized in that, for the purpose of simultaneous reposition and distraction in the diaphyseal

fractures of the shin bones with the ability to eliminate the displacement of peripheral fragments; it is equipped with a detachable collar having an internal rectangular round contour; interconnected, as well as the axis of rotation and crowns of the stem with a groove, rigidly connected to the support plate.

FIG.

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