Fibula cutting shaping positioner through 3D printing

Abstract

The invention provides a fibula cutting shaping positioner through 3D printing. The fibula cutting shaping positioner comprises a bone-cutting guide plate and two positioning buckles, the bone-cutting guide plate is provided with a long-slot-shaped curved surface cavity fitted with a bone surface of a portion, planned for bone cutting, of a fibula, and the positioning buckles are connected to positions connected with two ends of the portion in a buckled manner and connected with two ends of the bone-cutting guide plate. By adopting the fibula cutting shaping positioner, the bone-cutting guide plate and the fibula can be in place accurately, twisting or sliding of the bone-cutting guide plate on the fibula can be avoided, the fibula is ensured to be subjected to bone-cutting shaping according to a preset design scheme, operating effect is accurate, operation is simple and convenient, requirements on experience of operators are low, and operating errors caused by the operators through operation based on sensation are completely eradicated.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a 3D printed fibula osteotomy shaping positioner. Background technique [0002] Tumor invasion, inflammation, trauma and radiation therapy are the main causes of jaw destruction. Surgical treatment often requires resection of a large jaw, which will inevitably lead to facial deformity and loss of occlusal and masticatory functions. This requires sophisticated repair and reconstruction techniques. Cutting a non-load-bearing portion of the autogenous calf fibula and molding it into the shape of the jaw is the most commonly used method to reconstruct the jaw. However, since the shape of the calf fibula is straight, the jaw is a multi-dimensional mixture of L-shaped and arched. Therefore, during the operation, the doctor needs to cut off the fibula multiple times and bend it into a shape similar to the jaw bone. It is difficult to imagine, and the operation is time-consuming and labor-...

AI Technical Summary

Problems solved by technology

Foreign countries have used software such as Mimics for surgical design and simple surgical guides to provide simple instructions for fibula shaping. However, as the height changes, the shape of the fibula will change accordingly, and the fibula will rotate and shift during the shaping process. As a result, these shaping guides will not be in the correct position, resulting in a mismatch between the shaping fibula and the recipient area

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