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Customized designs of short thumb orthoses using 3D hand parametric models
Chih-Hsing Chu1, I-Jan Wang2, Jing-Ru Sun3
1Department of Industrial Engineering and Management, National Tsing Hua University, Hsinchu, Taiwan.
Assistive Technology : the Official Journal of RESNA
|January 1, 2020
Summary
This study developed a 3D parametric hand model to create custom 3D-printed thumb orthoses. The novel orthosis offers improved flexibility and support compared to traditional designs.
Area of Science:
- Biomedical Engineering
- Rehabilitation Technology
Background:
- Developing patient-specific orthoses requires accurate anatomical representation.
- Traditional methods for creating hand orthoses can be time-consuming and may lack precision.
Observation:
- A 3D parametric hand model was created using anthropometric data from 120 Taiwanese adults.
- An individualized 3D hand mesh model was synthesized for a specific client.
- A 3D-printed short thumb orthosis was designed and fabricated using the individualized model.
Findings:
- The 3D-printed orthosis demonstrated a seamless structural design and utilized ductile materials.
- Usability testing showed high satisfaction scores, with the orthosis providing enhanced flexibility and support.
- The process confirmed the feasibility of using parametric models for reverse engineering custom orthoses.
Implications:
- This approach enables the efficient and precise creation of customized thumb orthoses.
- The technology has the potential to improve patient outcomes in hand rehabilitation.
- Parametric modeling offers a scalable solution for personalized assistive device design.
