Memory alloy type acromioclavicular joint injury and clavicle fracture fixator

Abstract

The invention provides a memory alloy type acromioclavicular joint injury and clavicle fracture fixator. The memory alloy type acromioclavicular joint injury and clavicle fracture fixator is formed by a fixing main board 1, at least two fixing holes 2, a coracoid pulling bending hook 3 and snap rings 4; the fixing holes 2 are uniformly formed in the surface of the fixing main board 1; the end surface of one side of the fixing main board is provided with the coracoid pulling bending hook 3; the snap rings 4 can be arranged on the bilateral sides of the lower surface of the fixing main board 1 respectively; the coracoid pulling bending hook 3 and the snap rings 4 are formed by memory alloy. According to the memory alloy type acromioclavicular joint injury and clavicle fracture fixator, the structure is simple and the design is reasonable; the fixation is firm, the further injury to the acromioclavicular joint is reduced, the enough stability can be provided for the injured ligament or clavicle healing, and the disease rehabilitation of patients is facilitated due to the elastic fixation; the operation is convenient and accordingly the treatment time can be saved for the patients.

Description

technical field [0001] The invention relates to the technical field of orthopedic internal fixation devices, in particular to memory alloy fixers for acromioclavicular joint injuries and clavicle fractures. Background technique [0002] The acromioclavicular joint is composed of the articular surface of the acromion of the scapula and the articular surface of the acromion of the clavicle. In addition, the coracoclavicular ligament (trapezius ligament, cone ligament) connected to the coracoid process of the scapula and the clavicle is reinforced. Acromioclavicular joint injuries are mostly caused by falling from a high place, and the shoulders touch the ground first, causing the acromion to move down, causing damage to the ligaments and muscles around the joint, and dislocation of the acromioclavicular joint. Violence during sports causes the scapula to go down and the distal clavicle to go up, causing joint injuries, which are more common in wrestling, judo, and gymnastics....

AI Technical Summary

Problems solved by technology

Currently, the commonly used screws are drilled down through the proximal end of the clavicle and fixed to the coracoid process. The disadvantages are: ① It is not easy to drill the coracoid process; Joint or coracoclavicular screw fixation limits the micro-motion of the acromioclavicular joint, which is not in line with the physiology of the acromioclavicular joint, and is the main reason for internal fixation loosening and fixation failure. The disadvantages are: it is easy to cause complications such as shoulder joint stiffness and pain ; The most commonly used fixation method for fresh dislocation is to use clavicle hook plate fixation, but there are complications such as shoulder pain, limited mobility, plate breakage, dehook and so on, and a second operation is required to remove it. The hook end occupies the subacromial space; in addition, the imported button-loop steel plate is used for fixation, and one end of the steel plate needs to be fixed under the coracoid process through a connecting band. The operation is difficult and expensive, and clavicle fractures cannot be treated at the same time , is not conducive to the recovery of the patient's condition

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