Cranial jaw traction device for maxillary fracture

Abstract

The invention provides a cranial jaw traction device for maxillary fracture, relating to medical appliances. The device provided by the invention is provided with a head cap, a cambered fixing plate, a middle fixing bracket, a lateral fixing bracket, a maxillary dentition connecting structure, a middle traction bracket and a lateral traction bracket, wherein the cambered fixing plate is arranged on the head cap; the middle fixing bracket and the lateral fixing bracket are installed on the cambered fixing plate through an included angle adjusting mechanism; the middle traction bracket and the lateral traction bracket are arranged on the maxillary dentition connecting structure; the middle traction bracket extends to the outside of the mouth; the lateral traction bracket firstly extends from the lateral part to the middle part along the dental arch, then extends to the outside of the mouth, and finally extends to the lower margin of the cheekbone; and each fixing bracket and each traction bracket are respectively provided with traction rods made of platy elastic materials, wherein the longitudinal projections of all middle traction rods are overlapped, the longitudinal projections of all lateral traction rods are mutually staggered, each traction rod is provided with a group of fixing structures, and an elastic traction belt of which the two ends are articulated with the corresponding traction rods through the fixing structures is arranged. The device provided by the invention is simple, convenient and practical, can be reset accurately, can be fixed firmly, can not cause wounds, can realize early treatment, and is suitable for treating maxillary fracture, old fracture and facial deformity.

Description

technical field [0001] The invention relates to a medical device, in particular to a craniocandibular traction device for maxillary fracture. Background technique [0002] Among the bones of the face, the anatomical structure and composition of the middle part of the face are the most complex. Due to the irregular shape of the bones, many seams, many bone cavities, and thin bone walls, complex multiple fractures often occur when injured, and may be accompanied by damage to the brain or other parts. Among them, the maxilla is an important bone in the middle of the face. Its structure is relatively weak, and there are several sinus cavities in it. It is prone to fracture when it is hit by external force, such as: traffic accidents, falls from heights, etc. It is difficult to reduce and fix it, and early reduction Fixation is often limited by complex craniocerebral and multi-organ injuries and delayed surgery, which is prone to form old fractures, resulting in facial dysfuncti...

AI Technical Summary

Problems solved by technology

[0008] At present, the commonly used methods for the treatment of maxillary fractures are mainly craniomandibular traction or craniomandibular fixation, surgical open reduction and internal fixation. There are many diseases, especially complex fractures, the operation time is severely limited, and the several sinus cavities and uneven bone walls of the maxilla severely limit the effect of internal fixation. For many complex fractures, good results are often not achieved. And it will destroy the appearance of the human body, and the patient's economic and mental burden is large; while craniomandibular traction or craniognathic fixation, the dental arch splint is used to bear the force, the force points are few, the retention force is insufficient, the retention force is unbalanced, and the traction force line often acts Located in the canine area and at the lower end of the middle part of the face, the displacement of the teeth is large and the displacement of the bone is small, the fracture reduction is not ideal, the fracture block cannot be moved correctly, and there are shortcomings such as tooth drift, tooth root absorption, and maxillary rotation. Therefore, the curative effect poor

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