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Design and Analysis of a Biomedical Orthosis for Clubfoot Corrective Device

  • Clubfoot is a common congenital foot deformity that leads to constant pain and significant limitations if left untreated or not treated adequately. The most used method for treating clubfoot is the Ponseti method. It involves a correction phase where about five plaster casts are applied and changed weekly. This treatment lasting about 2 to 3 months, is the most chosen method due to its high success rate. However, treated babies often experience skin complications caused by stiff and tight casts. Previous research showed that viable solutions already exist including orthoses. In this research, a developed method known as VDI 2221 was applied and the printable orthosis using 3D printer was selected as an alternative to Ponseti method. Calculations and finite element method (FEM) analysis demonstrated that the orthosis made of PA6-CF provides sufficient stiffness and strength, assuming the weight force of the foot is 10 N. The selected design was developed based on requirements and functional analysis, effectively mitigating theClubfoot is a common congenital foot deformity that leads to constant pain and significant limitations if left untreated or not treated adequately. The most used method for treating clubfoot is the Ponseti method. It involves a correction phase where about five plaster casts are applied and changed weekly. This treatment lasting about 2 to 3 months, is the most chosen method due to its high success rate. However, treated babies often experience skin complications caused by stiff and tight casts. Previous research showed that viable solutions already exist including orthoses. In this research, a developed method known as VDI 2221 was applied and the printable orthosis using 3D printer was selected as an alternative to Ponseti method. Calculations and finite element method (FEM) analysis demonstrated that the orthosis made of PA6-CF provides sufficient stiffness and strength, assuming the weight force of the foot is 10 N. The selected design was developed based on requirements and functional analysis, effectively mitigating the disadvantages of the Ponseti method. The developed orthosis can be manufactured globally using the 3D printing process, with a manufacturing cost of around €150, excluding assembly costs. In summary, a new solution was proposed within the same treatment method, effectively eliminating skin complications, and enabling cost-effective manufacturability on a global scale.show moreshow less

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Author:Frieder HeieckORCiDGND, Marc Thein, Martin Bohn, Akihiko Hanafusa, Shahrol MohamaddanORCiD
DOI:https://doi.org/10.1007/978-3-031-61625-9_30
Identifier:978-3-031-61624-2 OPAC HS OPAC extern
Identifier:1680-0737 OPAC HS OPAC extern
Parent Title (English):Proceedings of EMBEC 2024, June 9–13, 2024, Portorož, Slovenia, Volume 1
Publisher:Springer Nature Switzerland AG
Place of publication:Cham, Switzerland
Editor:Tomaž Jarm, Rok Šmerc, Samo Mahnič-Kalamiza
Document Type:conference proceeding (article)
Conference:European Medical and Biological Engineering Conference, 09. - 13. Juni, 2024, Portorož, Slovenia
Language:English
Date of Publication (online):2024/06/01
Year of first Publication:2024
Tag:Additive Manufacturing; Clubfoot; Finite Element Method; Orthosis
Volume:2024
Number of pages:11 Seiten
First Page:276
Last Page:286
Institutes:Fakultät Maschinenbau
IPI – Institut für Produktion und Informatik
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften
Research focus:FSP3: Produktion
Publication Lists:Bohn, Martin
Heieck, Frieder
Publication reviewed:begutachtet
Release Date:2024/07/19
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