Orthopedic internal fixation plate shaping tool and shaping method

Abstract

The invention discloses an internal fixation steel plate shaping tool for orthopaedics. The internal fixation steel plate shaping tool for orthopaedics comprises a substrate having uniformly holes, and modulating columns penetrating the holes and capable of moving with damping in axial directions, and the columns are provided with locking mechanisms. The invention further provides a shaping method using the shaping tool. According to the internal fixation steel plate shaping tool and the shaping method for orthopaedics, blindness and inaccuracy during a shaping process of a steel plate can be overcome, fracture block shift caused by bad adherence of the steel plate and decrease of strength of the steel plate caused by repeatedly folding.

Description

technical field [0001] The invention relates to the field of orthopedics, in particular to an orthopedic internal fixation steel plate shaping tool and shaping method. Background technique [0002] With the rapid development of transportation, industry, construction and other industries, the incidence of various traumas has been reported at home and abroad in recent years, and various fractures account for a high proportion of them. On the other hand, with the aging of the Chinese society, the osteoporotic fractures of the elderly have attracted more and more attention from the society and medical workers. For a considerable number of fracture patients, open or closed reduction and internal fixation are still the best or even the only option. Various types of titanium alloy bone plates (commonly known as "steel plates") and supporting screw systems are very commonly used and one of the mainstream internal fixation devices, and their materials are mainly various medical tita...

AI Technical Summary

Problems solved by technology

[0007] 2. Since the shaping of the steel plate is carried out in the direction of three-dimensional space, sufficient eyesight, hand strength and mutual cooperation are required, which is often difficult for beginners

And the learning curve of this operation is difficult to shorten artificially

Therefore, when the operator lacks sufficient experience to operate, or when the surface shape of certain parts of the bone (such as the pelvis or acetabulum) is very complex and irregular, the shaping of the steel plate is often not able to achieve a satisfactory shape at one time, that is, Under-shaping, over-shaping or wrong shaping may even occur simultaneously in different parts of the same steel plate

At this time, the operator often needs to repeatedly try repeatedly to achieve a satisfactory shape, but in the process of repeatedly bending the steel plate, the ultrafine lattice structure of the steel plate will be damaged more. , the strength of the steel plate will be greatly reduced, and the anti-fatigue life will be shortened. After such a steel plate is implanted into the human body, the risk of fracture after surgery will greatly increase and the risk of surgical failure will increase greatly.

It is also possible that repeated bending and shaping may cause the steel plate to break during the operation and be scrapped

[0008] 3. The surface of the steel plate currently used often has a coating that increases biocompatibility and prevents erosion. Scratching with hard and sharp objects may damage the surface coating

The bending tools currently used are all made of hard metal, and the corners have certain edges and corners. When using these tools to bend the steel plate, there is no protection for the coating, which can easily cause damage to the surface coating of the steel plate, resulting in Corroded in advance

Images