Design and development of three-dimensional printing personalized rehabilitation orthosis(PDF)
《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]
- Issue:
- 2018年第4期
- Page:
- 470-477
- Research Field:
- 生物材料与力学
- Publishing date:
Info
- Title:
- Design and development of three-dimensional printing personalized rehabilitation orthosis
- Author(s):
- LIAO Zhengwen1; 2; 3; MO Yixiang2; ZHANG Guodong2; 4; LIN Hui2; 4; HUANG Guozhi3; HUANG Wenhua1; 2; 4
- 1. College of Basic Medical Sciences, Guangxi Medical University, Nanning 530021, China; 2. College of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China; 3. Department of Rehabilitation Medicine, Zhujiang Hospital Affiliated to Southern Medical University, Guangzhou 510280, China; 4. Guangdong Medical Center for 3D Printing Application Conversion Engineering, Guangzhou 510515, China
- Keywords:
- three-dimensional printing; rehabilitation orthosis; digital design; personalized
- PACS:
- R312；R197.39
- DOI:
- DOI:10.3969/j.issn.1005-202X.2018.04.019
- Abstract:
- Objective To propose a feasible scheme for making rehabilitation orthosis using three-dimensional (3D) printing technology based on research of digital design and manufacture of personalized rehabilitation orthosis with the use of 3D printing technology. Methods We used the T1-mDIXON-W scanning mode of magnetic resonance imaging to scan the upper limbs, collected DICOM format image data of the upper arm elbow and burned them into CD-ROM, imported the data of the CD-ROM into Mimics software to reconstruct the skin contour model, and exported the STL format file. The STL format file was imported into Geomagic studio software for surface optimization, meshing, precise surface manipulation, and the results were saved as STP format files which were imported into Abaqus software for optimization analysis of the finite element structure. Ten sets of different optimization values were set, namely 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, which were applied for topological optimization, respectively, in order to determine the appropriate optimization value and optimize the model structure. According to the optimization result map and stress cloud map, we guided the dig hole design of model, designed a model of the orthosis, and finally used a nylon material to print it out through a 3D printer. A total of 30 volunteers aging (24.26 ± 2.38) years old and weighing (59.67 ± 10.63) kg, including 15 male and 15 female, wore 3D printed personalized orthoses designed and manufactured using this program and traditional hand-made orthoses, and then filled in Quebec User Evaluation of Satisfaction with Assistive Technology. Finally, SPSS 19.0 software was applied to analyze the evaluation data. Results After finite element topology optimization analysis and several attempts, it was found that the optimized volume parameter was set between 10% and 20%, and the biomechanical performance of the model was less affected, and the digging hole design was guided by the finite element optimization results. The Quebec User Evaluation of Satisfaction with Assistive Technology filled by 30 volunteers was analyzed, and the results revealed that the comfort, simplicity, cost performance, weight, aesthetic appearance, and breathability of the orthosis were all significant (P<0.05), implying that the indicators of the 6 items of the orthosis had statistically significant differences. 3D printed orthosis was proven to be superior to traditional orthotics in some aspects, such as breathability and weight. Conclusion The 3D printing rehabilitation orthosis design and production program developed in this study is available, which can provide reference for the future clinical application of 3D printing rehabilitation orthosis.
Last Update: 2018-04-23