Next Article in Journal
Real-Time Electroencephalogram Data Visualization Using Generative AI Art
Previous Article in Journal
Revitalizing the Coastal Landscape of Qatar: The Urban Renewal Approach in West Bay
Previous Article in Special Issue
Hybrid Multi-Criteria Decision Making for Additive or Conventional Process Selection in the Preliminary Design Phase
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Designs
Volume 9
Issue 1
10.3390/designs9010015
designs-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Three-Dimensional Printed Auxetic Insole Orthotics for Flat Foot Patients with Quality Function Development/Theory of Inventive Problem Solving/Analytical Hierarchy Process Methods

by
Tadeus Pantryan Simarmata
1,
Marcel Martawidjaja
2,
Christian Harito
1,* and
Cokisela C. L. Tobing
3
1
Industrial Engineering Department, BINUS Graduate Program—Master of Industrial Engineering, Bina Nusantara University, Jakarta 11480, Indonesia
2
Industrial Engineering Department, Faculty of Engineering, Bina Nusantara University, Jakarta 11480, Indonesia
3
Dare Prosthetic & Orthotic Service, Bekasi 17147, Indonesia
*
Author to whom correspondence should be addressed.
Designs 2025, 9(1), 15; https://doi.org/10.3390/designs9010015
Submission received: 27 December 2024 / Revised: 21 January 2025 / Accepted: 24 January 2025 / Published: 28 January 2025
(This article belongs to the Special Issue Design Process for Additive Manufacturing)
Versions Notes

Abstract

Foot disorders affect approximately 10% of adults, with plantar heel pain significantly impacting foot-related quality of life and altering walking patterns. Flat feet, characterized by a lack of longitudinal arches, can lead to fatigue during walking. This study aims to develop 3D-printed shoe insoles tailored to the needs of patients. The design process incorporates Quality Function Deployment (QFD), Theory of Inventive Problem Solving (TRIZ), and Analytic Hierarchy Process (AHP) methods to create insoles that alleviate concentrated loads while meeting patient requirements. The AHP analysis indicated that patients prioritize insoles that effectively manage pressure distribution to achieve optimal functionality. QFD and TRIZ facilitated the identification of four product alternatives and production specifications. The analysis indicated that 3D-printed insoles made from TPU filament with 20% auxetic infill best align with patient preferences. This auxetic TPU option emerged as the top choice, achieving a priority value of 0.2506 due to its superior functionality and comfort. Load distribution measurements confirmed that TPU with auxetic infill resulted in the lowest load distribution, with a standard deviation of 0.1434 and a 25.4% reduction in maximum load compared to conditions without the insole.
Keywords: insole; QFD; TRIZ; AHP; auxetic; 3D print insole; QFD; TRIZ; AHP; auxetic; 3D print

Share and Cite

MDPI and ACS Style

Simarmata, T.P.; Martawidjaja, M.; Harito, C.; Tobing, C.C.L. Three-Dimensional Printed Auxetic Insole Orthotics for Flat Foot Patients with Quality Function Development/Theory of Inventive Problem Solving/Analytical Hierarchy Process Methods. Designs 2025, 9, 15. https://doi.org/10.3390/designs9010015

AMA Style

Simarmata TP, Martawidjaja M, Harito C, Tobing CCL. Three-Dimensional Printed Auxetic Insole Orthotics for Flat Foot Patients with Quality Function Development/Theory of Inventive Problem Solving/Analytical Hierarchy Process Methods. Designs. 2025; 9(1):15. https://doi.org/10.3390/designs9010015

Chicago/Turabian Style

Simarmata, Tadeus Pantryan, Marcel Martawidjaja, Christian Harito, and Cokisela C. L. Tobing. 2025. "Three-Dimensional Printed Auxetic Insole Orthotics for Flat Foot Patients with Quality Function Development/Theory of Inventive Problem Solving/Analytical Hierarchy Process Methods" Designs 9, no. 1: 15. https://doi.org/10.3390/designs9010015

APA Style

Simarmata, T. P., Martawidjaja, M., Harito, C., & Tobing, C. C. L. (2025). Three-Dimensional Printed Auxetic Insole Orthotics for Flat Foot Patients with Quality Function Development/Theory of Inventive Problem Solving/Analytical Hierarchy Process Methods. Designs, 9(1), 15. https://doi.org/10.3390/designs9010015

Article Metrics

Back to TopTop