A design method of personalized 3D printed scoliosis orthosis

Abstract

The invention discloses a design method of a personalized 3D printing scoliosis orthosis, which comprises the following steps: first obtain the patient's scoliosis spine and perform three-dimensional modeling to obtain the scoliosis spine model and soft tissue model, and then obtain the scoliosis spine model and soft tissue model based on the patient's torso Draw the cross-sectional contour curve of the orthosis with the two-dimensional cross-sectional contour curve; then carry out lofting operation and outward stretching on the cross-sectional contour curve to obtain the orthotic model; then optimize the density distribution of the orthotic model to obtain the density distribution map of the orthotic device; The orthosis model was designed for weight reduction and back opening according to the density distribution map of the orthosis, and the orthosis model was obtained; finally, the orthosis model, spine model and soft tissue model were imported into the finite element software for finite element biomechanical simulation evaluation, and those with poor evaluation The orthosis model was redrawn, and the well-evaluated H orthosis model was used as the final model. The invention has the characteristics of low production requirement, high consistency of orthopedic effect and good comfort.

Description

technical field [0001] The invention relates to a design method of a scoliosis orthosis, in particular to a design method of a personalized 3D printing scoliosis orthosis. Background technique [0002] Scoliosis is a common spinal deformity disease, which clinically manifests as lateral curvature of the spine on the coronal plane, often accompanied by abnormality in the sagittal plane and axial rotational deformity. The International Scoliosis Society stipulates that in the coronal plane, a Cobb angle greater than 10 degrees can be identified as scoliosis. Currently, the treatment methods for treating scoliosis are mainly divided into observation, orthotic treatment and surgical treatment. Among them, the observation method is mainly used for patients with mild scoliosis (Cobb angle < 20 degrees), the orthotic treatment is mainly used for mild and moderate scoliosis patients (Cobb angle is 20 degrees to 45 degrees), and the surgical treatment is mainly used It is used f...

AI Technical Summary

Problems solved by technology

This production method requires manual shaping to achieve spinal correction, so that the correction effect often depends on the experience of the technician, and there are problems of time-consuming and laborious

In addition, due to the limitations of the design and manufacturing process, the orthosis also has the problem of poor air permeability, which will affect the breathing of the user after wearing it, resulting in a decrease in the user's compliance, and on the other hand reduces the performance of the orthosis. The therapeutic effect of

Therefore, the existing design methods for scoliosis orthoses have the problems of high production requirements, uneven orthopedic effects and poor comfort

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