A 3D printer for external fixation of fractures

Abstract

Provided by the present invention is a 3D printer for the external fixation of a fracture, comprising a printer frame, wherein a feeding device is installed at an upper portion of the printer frame, a three-axis moving mechanism is installed at a middle portion of the printer frame, an air cooler is installed at a lower portion of the printer frame, and a first hot air softening device and second hot air softening device are installed at two sides of the three-axis moving mechanism respectively; a dedicated print head is installed on a three-axis moving platform of the three-axis moving mechanism, and a discharge port of the feeding device is connected to an end of a feeding hose, while a feeding port of the dedicated print head is connected to the other end of the feeding hose; an air outlet of the air cooler is connected to an end of a cold air hose, and an air inlet of the dedicated print head is connected to the other end of the cold air hose; a surface of a model is softened to achieve the purpose of flattening the surface without deforming the entire model to affect a fixation effect, thus the purpose of rapid printing of an external fixation model for a fracture is achieved.

Description

technical field [0001] The invention belongs to the technical field of 3D printing, in particular to a 3D printer for external fixation of fractures. Background technique [0002] 3D printing is a technology based on digital model files, using bondable materials such as powdered metal or plastic, to construct objects by layer-by-layer printing with a 3D printer. 3D printing as a rapid prototyping technology can be used directly for the direct manufacture of some products in jewelry, footwear, industrial design, construction, automotive, aerospace, medical industry, education, geographic information systems, civil engineering, firearms and other fields are applied. [0003] Fracture is a common injury in medical treatment and daily life. After a fracture, patients usually need to receive corresponding fixation measures to ensure the recovery of the damaged bone. At present, the commonly used fixation measures are divided into two categories: external fixation and internal f...

AI Technical Summary

Problems solved by technology

[0005] With the development of 3D printing technology, 3D printing technology has been used to manufacture external fixation devices in the prior art, but it has not been effectively promoted. The reason is that the printing speed of existing 3D printers is slow, and an external fixation device is often printed. It takes 4 to 12 hours or even longer, and the fracture is a condition that needs to be treated urgently. After the reduction, it needs to be fixed immediately, and you can't wait too long

[0006] In the prior art, the reason why it takes a long time to print an external fixation device through a 3D printer is that in order to meet the needs of different models, the 3D printer fills the models layer by layer and stacks them layer by layer. It is very long and often takes more than ten hours. Fracture patients cannot wait for a long time

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