Therapy Concepts for the Proximal Interphalangeal Joint.

Journal and index pages often block iframe embedding. This reader keeps the evidence details in Orthonotes and leaves the source page one click away.

Abstract

[Indexed for MEDLINE] 2. Biomed Phys Eng Express. 2022 Mar 11;8(3). doi: 10.1088/2057-1976/ac5092. Bioinspired design proposal for a new external bone fixator device. Buso C(1)(2), Zanini P(1)(2), Titotto S(1)(2). Author information: (1)Center of Engineering, Modeling and Applied Social Science, Federal University of ABC (UFABC), Santo André, Brazil. (2)4D Printing and Biomimetics' (4DB) Research Group, Federal University of ABC (UFABC), Santo André, Brazil. The article presents a new medical device through an authorial and interdisciplinary approach. It consists of a flexible external fixator, whose flexible property may bring advantages over rigid mechanisms. Its design was inspired by the DNA biological mechanism of condensation, while the modeling was based on the pseudo-rigid modeling technique. From the models obtained, this study conducted prototyping and computational tests to obtain a proof-of-concept of the bioinspired theory and dynamic functioning effectiveness. The prototyping relied on hot glue manufacturing and the computational simulations consisted of linear static analysis. The experimental analysis concluded that the prototype with fewer beams and thinner beams delivered better results in all three parameters: flexibility, height variation and rotation arc. In the computational analysis, among the design models with the variation of the number of beams, the model with 8 beams performed better. Concerning thickness variation, the one whose beams measured 8 mm in thickness showed better results. Among the models with length variation, the design made with 100 mm long beams better equilibrated the parameters. © 2022 IOP Publishing Ltd. DOI: 10.1088/2057-1976/ac5092