A guiding device for coracoclavicular ligament reconstruction

Abstract

The invention relates to a guiding device for reconstruction of the coracoclavicular ligament. The guiding device includes a guiding plate, a guiding tube, a positioning rod and a coracoid process positioning hook. There is a guide hole, a guide tube is provided in the hole, and the positioning rod is provided at the other end; the guide plate is composed of a first circular arc guide plate and a second circular arc guide plate that are inserted into each other; The axis of the straight line section of the positioning rod intersects the axis of the guide tube at the center of the arc-shaped guide plate; the coracoid positioning hook is U-shaped, its width matches the width of the coracoid bottom, and its U The center of the curved upper surface is located on the center of the arc-shaped guide plate. The guiding device of the present invention not only ensures the accuracy of the spatial position of the established bone tunnel, but also meets the reconstruction needs of different individuals.

Description

technical field [0001] The invention relates to surgical instruments in the medical field, in particular to a device for treating bone joints, which can be used for reconstruction of coracoclavicular ligament. Background technique [0002] Anatomical reconstruction of the coracoclavicular ligament is a commonly used operation for the treatment of dislocation of the acromioclavicular joint. It reconstructs the coracoclavicular ligament anatomically and restores the stability of the shoulder joint, thus achieving good therapeutic effects. With the recognition of the importance of the coracoclavicular ligament, this procedure gradually became the gold standard. Along with the wide application of this kind of operation, the cases of operation failure also appear constantly. The main reason of operation failure is that the bone tunnel is not established correctly during the operation (the direction of the bone tunnel is determined by the specific position on the clavicle and the ...

AI Technical Summary

Problems solved by technology

But above-mentioned utility model has following deficiency: 1, due to the bone tunnel requirement of coracoclavicular ligament anatomical reconstruction, starting point is at the center of clavicle upper surface between trapezoidal ligament and conus ligament (about 3 cm from the far end of clavicle), and end point is In the center of the lower surface of the root of the coracoid process, and the above-mentioned utility model scheme, once the coracoid process positioning hook (14) hooks the coracoid process, the starting point of the bone tunnel is fixed, and it cannot be ensured that it just falls on the clavicle of the trapezoidal ligament and conus ligament center of upper surface

2. The aiming frame (10) and its coracoid process positioning hook (14) and the sleeve (20) are all in the same plane (the description attached to the above-mentioned utility model Figure 1~4 ), the surgical incision can only be fixed on the upper surface of the human shoulder, resulting in an excessive distance between the surgical incision and the base of the coracoid process, which increases the difficulty of ligament reconstruction in the later stage of surgery

Images