Manufacturing method of personalized retaining splint for department of orthopedics

Abstract

The invention relates to a manufacturing method of a personalized retaining splint for department of orthopedics. The manufacturing method comprises the following steps: conducting stress analysis on the surface of a patient's limb with fracture, so that a stress distribution situation is obtained, and forming a plurality of hollowed structures in the surface in accordance with the stress distribution situation, wherein the hollowed structures in a region with a high stress value are dense and the hollow structures in a region with a low stress value are sparse; then, deviating the surface outwards by a predetermined thickness, so that a splint model is obtained, cutting the splint model into two parts, namely an upper splint and a lower splint and filling the hollowed structures within predetermined distances from edges to central directions along the surfaces of the upper and lower splints; separately arranging connecting pieces, which are mutually matched and are used for fixedly connecting the upper and lower splints in a detachable mode, on the upper splint and the lower splint; leading data of the upper splint and the lower splint into a 3D printer and conducting printing, so that the retaining splint is manufactured. The retaining splint for the department of orthopedics manufactured by the invention is not only comfortable to wear; and moreover, the retaining splint is convenient to detach for changing dressing, cleaning and the like.

Description

technical field [0001] The invention relates to a manufacturing method of a personalized orthopedic retention splint, which belongs to the technical field of forming and connecting fixing parts. Background technique [0002] As a common motor system trauma, fractures are increasing in frequency and complexity year by year. The traditional method for postoperative rehabilitation of fractures is to fix the patient's fractures with external fixation brackets such as plaster or splints. [0003] Plaster fixation is a common method for fixing fracture patients. The advantage of plaster fixation is that it is hard and not easy to deform and loose. However, due to the vertical rigidity of the plaster cast and the tight fit with the limbs, it is difficult to adapt to the reactive swelling of the limbs after trauma, and it is easy to compress the limbs and cause many complications, such as compressive soup, compressive nerve paralysis and blood circulation disorders, etc. In severe ...

AI Technical Summary

Problems solved by technology

[0005] Although the existing personalized external fixation splints have been able to achieve digital manufacturing, many technologies are still incomplete

First, the air hole construction technology of the model in the prior art cannot meet the force requirements of the affected limb, resulting in discomfort for the patient to wear and easy to cause secondary displacement; second, the hollow structure of the prior art is often very rough and the transition is uneven , which is not beautiful and is easy to scratch the skin and affect blood circulation; third, the existing technology does not combine the model bias algorithm to make the retention of the splint reach the optimal position

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