External fixator for lower jawbone fracture and fixing method thereof

Abstract

The invention discloses an external fixator for lower jawbone fracture and a fixing method thereof. The fixator comprises an external fixing rod assembly, an adjusting support assembly and a locking assembly, a through groove is formed in the external fixing rod assembly, a through hole is formed in the lower end of the external fixing rod assembly, the adjusting support assembly comprises an adjusting screw, a support assembly arranged on the adjusting screw, a first adjusting nut, a second adjusting nut and a first gland nut; the support assembly comprises a front end, a first support rod, asupport piece, a second support rod and a back end which are connected sequentially; the rod body sequentially penetrates through a first external fixing rod, the first adjusting nut, the front end,the back end, the second adjusting nut, a second external fixing rod and the first gland nut. The adjusting support assembly is arranged on the fixator, so that lower jawbone receives opposite tensionof the first external fixing rod and the second external fixing rod after surgery and also receives upward support force of the support piece, the injured parts can be better attached, and the treatment effect is improved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an external fixation bracket for mandibular fractures and a fixing method thereof. Background technique [0002] At present, according to statistics, oral and maxillofacial trauma accounts for about 10% to 20% of systemic trauma. Trauma to human bones caused by traffic accidents or other accidents is common, and the number of patients with human maxillofacial bone fractures is on the rise. The treatment of fractures usually adopts open reduction and internal fixation, which is mainly manifested in first cutting open the soft tissue outside the bone and then using bone nails or steel plates, steel wires and other devices to perform internal bone fixation in the tissue to treat maxillofacial bone fractures. The following complications may occur: wound surface infection, retention of foreign bodies in the jaw, rejection of foreign bodies by the human body, especially interna...

AI Technical Summary

Problems solved by technology

[0002] At present, according to statistics, oral and maxillofacial trauma accounts for about 10% to 20% of systemic trauma. Trauma to human bones caused by traffic accidents or other accidents is common, and the number of patients with human maxillofacial bone fractures is on the rise. The treatment of fractures usually adopts open reduction and internal fixation, which is mainly manifested in first cutting open the soft tissue outside the bone and then using bone nails or steel plates, steel wires and other devices to perform internal bone fixation in the tissue to treat maxillofacial bone fractures. The following complications may occur: wound surface infection, retention of foreign bodies in the jaw, human body’s rejection of foreign bodies, especially for children, internal fixation will affect the development of the child’s jaw in the future, etc.

[0003] However, internal fixation is widely used clinically, which not only has a negative psychological effect on patients, but also sometimes requires trauma to the patient again to remove the internal fixation after the fracture has recovered, which to a certain extent has caused secondary trauma to the patient. Trauma, which brings insurmountable difficulties to both medical staff and patients themselves;

[0004] Although the external fixator in the prior art can also reinforce the mandible with bolts, it does not support the lower end of the human mandible, resulting in a poor recovery effect on the injured part of the patient.

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