Guide device for coracoclavicular ligament reconstruction

Abstract

The invention relates to a guide device for coracoclavicular ligament reconstruction. The guide device comprises a guide plate, a guide pipe, a positioning rod and a coracoid positioning hook. The guide device is characterized in that the guide plate is in circular arc shape, one end of the guide plate is provided with a guide hole, the guide pipe is arranged in the guide hole, and the other end of the guide plate is provided with a positioning rod; The guide plate is formed by connecting a first circular arc guide plate body and a second circular arc guide plate body which are inserted into each other oppositely; the axis of the linear segment of the positioning rod and the axis of the guide pipe intersect with each other at the circle center of the circular-arc-shaped guide plate; the coracoid positioning hook is in a U shape, the width of the U-shaped coracoid positioning hook is matched with the width of the coracoid bottom, and the center of the upper surface of the U-shaped bend is located in the circle center of the circular-arc-shaped guide plate. By means of the guide device, the accuracy of the constructed bone tunnel space position is guaranteed, and the reconstruction requirements of different individual differences are met.

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

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