A new concept of orthosis for correcting fingers ulnar deviation

Autor(es)

Daniela Nakandakari Goia ^[1] ; Carlos Alberto Fortulan ^[2] ; Benedito Moraes Purquerio ^[3] ; Valéria Meirelles Carril Elui

Afiliação do(s) autor(es)

^[1] University of São Paulo. School of Engineering - Brasil

^[2] University of São Paulo. School of Engineering - Brasil

^[3] University of São Paulo. School of Engineering - Brasil

• Tipo de documento: Artigo Científico
• Fonte: Res. Biomed. Eng.; v. 33, n. 1, p. 50-57, 2017-03-27.

Resumo

Abstract Introduction Rheumatoid arthritis (RA) is a chronic, multisystem disease that involves synovial inflammation, leading to deformities, like finger ulnar deviation, pain and functional difficulties. The conservative treatment comprises orthoses, features added to the body that aims to correct deformity, reduce pain and improve functionality. In the market there are few kinetic/mobile orthosis models for correction of ulnar deviation in the fingers. However, users usually complain about increased palmar volume, presence of pressure points and functional loss, demonstrating the necessity to develop more effective orthoses. In this paper we introduce an innovative concept, of an original and articulate dynamic/kinetics orthosis, which aims to correct this finger deformity and encourage functionality. Methods Methodological procedures were divided into: Need Recognition; Specification Concept; Prototype and Validation. This paper deals with the last two stages of this research. Results A virtual orthosis prototype using CAD Solid Edge Insight™ was proposed. The orthosis developed consisted of 10 pieces, made of metal and resin with carbon fiber. Conclusion After virtual movement simulation, it was verified that the prototype allows for wrist and finger flexion/extension, the possibility of bilateral use, and provids ulnar deviation correction for the fingers. The final product is innovative and is easy to put on/off; volunteers claimed that the new prototype was satisfactory in terms of deformity correction. (AU)

• Processo FAPESP: 14/50022-3 - Desenvolvimento de novas tecnologias no tratamento de portadores de artrite reumatóide: órtese inteligente para correção desvio ulnar dos dedos
• Beneficiário: Valeria Meirelles Carril Elui
• Modalidade de apoio: Auxílio à Pesquisa - Pesquisa em Políticas Públicas para o SUS