Percutaneous minimally invasive double-locking external fixation system

Abstract

The invention provides a percutaneous minimally invasive double-locking external fixation system. The system comprises a bone fracture plate, supporting columns and bone fracture nails, wherein at least two vertically-through column inlet holes are formed in the bone fracture plate, the supporting columns are hollow, nail inlet holes are formed in the supporting columns, and the supporting columnspenetrate through and are fixedly arranged in the column inlet holes; the tail ends of the supporting columns extend out of the bottom face of the bone fracture plate; the bone fracture nails penetrate through and are fixed in the nail inlet holes; the tail ends of the bone fracture nails extend out of the tail ends of the supporting columns. The bone fracture nails are placed through percutaneous minimally invasive surgery, and the bone fracture plate is placed outside the body surface, so that stripping of muscles, fascia and periosteum in an operation part is avoided, and a good blood transportation environment is provided for subsequent fracture healing.

Description

technical field [0001] The invention relates to the technical field of orthopedic medical devices, in particular to a percutaneous minimally invasive double-locking external fixation system used in the minimally invasive external fixation surgery for extremity fractures. Background technique [0002] Along with the changes in human life and working methods, the incidence of long bone fractures of extremities caused by accidental injuries is increasing year by year. For relatively simple extremity fractures, manual reduction and plaster fixation are usually used for treatment, but more complicated comminuted fractures and spiral fractures are mostly treated with surgery. At present, open reduction and internal fixation is mostly used for limb fractures, which has the advantages of stable mechanical properties of the fracture site and accurate reduction of the fracture ends. Exposing the broken end of the fracture and its surrounding bone, there are disadvantages such as wide...

AI Technical Summary

Problems solved by technology

However, none of the above brackets can solve the shortcomings of the traditional external fixation system, such as too large body surface parts, difficult postoperative care, and high infection rate of the nail tract. Therefore, designing a simple structure, easy to use, safe and effective external fixation device has become The key to the further development of surgical treatment of external fixation of fractures

Images