A preparation method of 3D printing orthopedic fixation device

Abstract

The invention discloses a preparation method of a 3D (three-dimensional) printing orthopaedic fixation device. The method comprises the following steps of S1, rebuilding a three-dimensional model for a colles fracture part; S2, designing a customized orthopaedic fixation system; S3, machining the customized orthopaedic fixation system; S4, detecting and optimizing the strength of the material of an orthopaedic fixation instrument. The size and the shape of the orthopaedic fixation system can be customized according to the shape of skeleton and a soft tissue of a patient, so that the individual customization of the orthopaedic fixation system is realized, the design of the orthopaedic fixation system can be flexibly changed according to the positions and sizes of bone fractures; the surface between the orthopaedic fixation system and a bone is precise, and the principle of stress dispersion is met; printing is performed by the fixer through 3D printing technology, so that the manufacturing precision is high, the price is low, and the fixer is suitable of individual customization; according to the manufactured orthopaedic fixation device, after strength detection and optimized design, the problem that the fixer and the bone or the soft tissue are not engraved or the problem of stress difference between the fixer and the bone or the soft tissue are further solved.

Description

technical field [0001] The invention relates to the technical field of colles fracture reconstruction, and more specifically, relates to a preparation method of a 3D printed orthopedic fixation device. Background technique [0002] Colles fracture: dorsally comminuted distal radius fracture, dorsally angulated and dorsally displaced extra-articular fracture with radius shortening, orthopedic fixation device for Colles fracture made by traditional industrial methods: distal radius volar locking plate screw system , while the steel plate is mass-produced, because each patient's fracture location is different, and the radius structure is also different, so the steel plate cannot perfectly fit the patient's radius when used. Contents of the invention [0003] The purpose of the present invention is to provide a method for preparing a 3D printed orthopedic fixation device that can perfectly match the fracture of each patient, has good curative effect, and low medical expenses. ...

AI Technical Summary

Problems solved by technology

[0002] Colles fracture: dorsally comminuted, dorsally angulated and dorsally displaced extraarticular fractures of the distal radius with shortening of the radius, orthopedic fixation devices for Colles fractures made by traditional industrial methods: volar distal radius locking plate screw system , and the steel plate is mass-produced, because each patient’s fracture position is different, and the radius structure is also different, so the steel plate cannot perfectly match the patient’s radius when used.

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