Banca de QUALIFICAÇÃO: ANA CLARA CASTRO PIMENTEL SILVA ARAÚJO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : ANA CLARA CASTRO PIMENTEL SILVA ARAÚJO
DATA : 30/09/2021
HORA: 17:00
LOCAL: remoto (on line)
TÍTULO:

STANDARDIZED ORTHOSIS FOR THE TREATMENT OF DISTAL RADIUS FRACTURE PRODUCED BY ADDITIVE MANUFACTURING

PÁGINAS: 85
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Biomédica
SUBÁREA: Engenharia Médica
ESPECIALIDADE: Tecnologia de Próteses
RESUMO:

Distal radius fractures (DRF) are among the most common fractures in orthopedics, occurring mainly in young people during high-energy accidents and in the elderly during low-energy accidents. In some cases of DRF, there is no need for surgical intervention, only closed reduction and the use of an immobilizer are enough for bone healing. The most used immobilizers to treat DRF are plaster and thermoplastic plate orthoses, which are being increasingly adhered due to their practicality, lightness and comfort. The literature presents the use of additive manufacturing technology, through the material extrusion process, in the manufacture of customized orthotics as an alternative to thermoplastic plate orthoses. In addition to customization, additive manufacturing allows the production of orthoses without wasting material, with design freedom and at an affordable cost. The aim of this project is to develop a standard model of orthosis by additive manufacturing in standard sizes small (S), medium (M) and large (L) for the treatment of FRD. The methodology was divided into four phases: 1) Statistical analysis of data; 2) modeling and 3D printing of the orthosis prototypes; 3) Modeling and 3D printing of biomodels of the arm and 4) bench tests. In phase 1, eight essential parameters for determining the measurements of the orthoses were obtained from a hand image database. The distribution of frequency, normality and correlation of these parameters were verified to define the range of sizes S, M and L of the orthoses. In phase 2, the orthoses were modeled in a 3D virtual environment and printed by the material extrusion process in thermoplastic polymer poly (lactic acid). Several prototyping cycles were carried out to improve the orthosis design and define a lighter, more functional and safer model. The height of the palm was the parameter with the best correlation with the others (r between 0.45 and 0.78), therefore, this parameter was used as a guide in the division of the sizes S, M and L. The biomodels of the arm were modeled from data obtained from the image database of three randomly selected volunteers in sizes S, M and L. The orthosis model for the treatment of DRF developed at the current stage of the research, presents a pleasant aesthetic, lighter and more resistant compared to plaster and better price than thermoplastic plates. As a future perspective, this orthosis model can be manufactured by the industrial injection process for large-scale production and at a more affordable price to be introduced in the market.

MEMBROS DA BANCA:
Presidente - Interno ao Programa - 2352005 - RENATO NAVILLE WATANABE
Membro Titular - Examinador(a) Interno ao Programa - 1946319 - DIOGO COUTINHO SORIANO
Membro Titular - Examinador(a) Externo à Instituição - CARLOS ALBERTO COSTA - UCS
Membro Suplente - Examinador(a) Interno ao Programa - 2231661 - JOAO LOURES SALINET JUNIOR
Membro Suplente - Examinador(a) Interno ao Programa - 1604317 - SONIA MARIA MALMONGE
Membro Suplente - Examinador(a) Externo à Instituição - MÍRIAM RAQUEL DINIZ ZANETTI