Only in the Metropolitan Region of Paraíba Valley, about 30 thousand people present amputation, absence or malformation of arms or hands. Upper limb prostheses available on the market or by the Sistema Único de Saúde (Unified Health System) do not serve children and have low functionality. The Mao3D Program of UNIFESP works in partnership with the Lucy Montoro Rehabilitation Center in São José dos Campos and is based on a technological innovation, open source prosthetics produced by 3D printing of the NGO e-Nable. The Mao3D meets free of charge people with amputation, absence or malformation of the upper limb through 3 projects: 1) Dissemination of 3D printing technology for prostheses, 2) Development and production of prostheses, and implementation of a rehabilitation protocol and 3) Training For the production of prostheses and rehabilitation.
Research and extension program
Participants: Mao3D Team
MakerBot and Robohand | 3D Printing Mechanical Hands
Historico da ONG Robohand da África
e-NABLE - volunteers offer prosthetic hands made for children by 3D printers
Histórico da E-nable nos EUA
AUTOMATED CHILD WHEEL CHAIR - CREW
In Brazil, wheelchairs provided by the Sistema Único de Saúde (Unified Health System) generally do not include children under 12 years of age. The inability of children with motor disabilities to attend school limits their inclusion in society. In this research, a low-cost bifunctional (manual / motorized) wheelchair model is being developed for children aged 3 to 7 years based on the Openwheelchair open source model. The mechanical structure of the CRIA is made with PVC pipes and the control system is developed in an Arduino platform with joystick of videogame. CRIA is bifunctional and can be used both as a caretaker-driven manual chair and in automated form. Initial test results indicate that the prototype developed has great functionality and ability to meet this demand in the market.
Master's research project (UNIFESP / UFABC)
Participant: Biomedical Engineer Filipe Loyola (CAPES Fellow)
Related projects: Open Wheelchair Foundation
STRUCTURAL MODIFICATIONS AND EVALUATION OF HAND PROSTHESES PRODUCED BY ADDITIVE MANUFACTURE
In the Vale do Paraiba, more than 3 thousand children present congenital deformation with absence or malformation of arms, hands or fingers. With the loss of the ability to manipulate, the child may have a less functional, more dependent life and have its inclusion in the limited society. The upper limb prostheses available on the market and the SUS show low functionality, high rejection rate, are unsuitable for children's use because they are heavy, expensive and do not keep up with growth. This research is part of the Mao3D Program, the goal was to implement structural modifications and evaluate two models of children's hand prosthesis produced by e-Nable 3D printing. Both models allowed the manipulation of objects, but many challenges still have to be overcome for the development of a functional prosthesis suitable for children's use
Research project for scientific initiation PIBITI (UNIFESP)
Participant: Bel. Science in Technology Ana Paula Dias Cano (Bolsa CNPq)
VIRTUAL PLATFORM FOR DISTANCE REHABILITATION
This study is part of the Mao3D Program. Considering the territorial extensions of Brazil, the objective of this research is to create a Virtual Platform to attend, by telemedicine, people with amputation or upper limb malformation who need prostheses and who live in areas without access to a rehabilitation center. The Platform will make the Mao3D program more comprehensive in Brazil, including low-cost techniques for remote image acquisition of the limb allowing customization of prostheses. In the first phase the photogrammetry technique, free software and 3D printing of a prototype were explored. The research will include evaluation of real cases in different regions of Brazil for validation of the Virtual Platform and the creation of a training program for rehabilitation with prostheses made by 3D printing.
Scientific initiation research project (UNIFESP)
Participant: BCT student Laís R. Tsujimoto (Unifesp Extension Grant)
PARAMETRISED ORTHODONTICS PRODUCED BY ADDITIVE MANUFACTURING FOR THE IMMOBILIZATION OF CHILDREN'S HIP
Immobilization of the child's hip with pelvic plaster cast is used to treat cases of hip dysplasia or fracture in a newborn. The main problems with the use of gypsum in these cases are: thermal and mechanical discomfort, cutaneous complications, difficulty in hygiene and transportation of the newborn. Earlier research by the group developed the first prototype of hip orthosis using photogrammetry-free software and additive manufacturing. A new project is being developed with a team of children's traumatology at Dr. José de Carvalho Florence Municipal Hospital in São José dos Campos (SP) to create a methodology for the production of a parameterized, lightweight, hygienic and ergonomic brace with mechanical resistance Suitable for immobilization of the infantile hip.
Research project of Professional Master's in Technological Innovation (UNIFESP)
Participants: Eng Biomédico Rodrigo Munhoz (previous project) and Eng Biomédica Natália Aurora dos Santos (current project)
PRODUCTION OF AUDIOVISUAL MATERIAL FOR SCIENTIFIC DISCLOSURE
Popularizing scientific knowledge is a way of contributing to social development and, consequently, to increasing citizenship. Therefore, the scientific community around the world has used new forms of media for the purpose of scientific dissemination. The Institute of Science and Technology of the Federal University of São Paulo Unifesp, has an academic environment in which to develop innovative and interdisciplinary research, bringing the results of these research to the lay public is a challenge. The current project proposes the creation of a site and a channel on YouTube using audiovisual material for scientific dissemination of research in the area of Biomechanics and Forensics. The public that intends to achieve with this project is composed of school students, universities and lay people. We hope that, at the end of this project, the channel created for scientific dissemination will be a model and reference of an innovative space for dissemination and reflection on scientific culture in Brazil. The project is in line with the mission of Unifesp to promote the advancement of knowledge through teaching, research and extension actions, based on interdisciplinarity, excellence and social inclusion.
Participant: Mariana de Carvalho Mineiro (Extension Grant).
3D MODELING, ADDITIVE MANUFACTURE AND COMPUTATIONAL ANALYSIS OF CHILDREN'S MIOELECTRIC PROSTHESIS OF SUPERIOR MEMBER
The upper limb myoelectric prosthesis is a device controlled by muscular contractions of the user by the drive of motors. This type of prosthesis is not produced in Brazil and the cost is around R $ 300,000.00. The objective of this research was to analyze the reduction of the cost of production of a prosthesis by additive manufacturing using the finite element method. The open-design model The Limbitiless Arm of the NGO e-Nable was produced by MA and the electronic structure was developed. Virtual mechanical assays were performed to evaluate the mechanical strength of the prosthesis considering the structure made with two types of PLA and ABS polymers. The mechanical structure of a new prosthesis was developed. Computational simulations indicate that mechanical strength, weight and geometry can be optimized during this methodology. The manufacturing process allowed the production of a custom prosthesis with a lower cost than the current market and easier reproducibility.
Project for the Completion of a Biomedical Engineering Course (TCC) Participant: Thabata Alcântara F. Ganga
PROSTHETIC HEADING OF SILICONE PRODUCED BY ADDITIVE MANUFACTURE
Additive manufacturing techniques are being investigated for the production of atrial prostheses for the production of a product with lower cost and more quality when compared to that obtained by the manual manufacturing process. In this research are being investigated and evaluated the processes that involve the production of auricular prostheses from techniques of additive manufacture for the Brazilian market. Three methods of acquiring the ear flag structure by photogrammetry, 3D scanning and 3D reconstruction of computed tomography images are being verified. Atrial prosthesis templates will be created from the 3D reconstruction of tomographic images from free software and produced by deposition of molten material. The silicone ear prostheses will be evaluated by mechanical tests and will be submitted to a cost analysis.
Master's research project in Biomedical Engineering (UNIFESP / UFABC) Participant: Biomedical Engineer Bárbara Olivetti Artioli (CAPES Fellow)
THERMOMOLDABLE FIST OVERHEAD PRODUCED BY ADDITIVE MANUFACTURE
Cock Up Orthoses (OCUs) provide rest based on joint biomechanics and are indicated for cases of neurological changes, tendinitis, fractures or postoperative recovery. OCU are produced with thermoplastic material and molded on the arm for a better fit. The cost of an OCU provided by SUS is about R $ 300.00. In this study an OCU was made from 3D modeling and manufactured on a 3D printer with polylactic acid filaments. The OCU was molded in a hot bath, as is usually done with thermoplastic. The cost of production was R$ 3.50. The methodology used is feasible reducing the final cost.
Undergraduate Work Project TCC.
Student: Ana Paula Dias Cano
ANKLE-FOOT ORTHESIS FOR CHILDREN WITH CEREBRAL PARALYSIS PRODUCED BY ADDITIVE MANUFACTURE
Cerebral palsy (CP) is a group of disorders that affect posture and movement, predisposing the equine foot deformity and gait acquisition problems. The use of ankle-foot can minimize the effects of spasticity, but its acquisition through a single health system (SUS) has a long waiting period and the cost in the market is not accessible. This research aims to develop a methodology for the production of this type of orthosis for children with cerebral palsy through additive manufacture. For this research, five children with PC will be selected. For the production of the orthosis will be made the acquisition of the external surface of ankle and foot with the technique of photogrammetry followed by modeling and 3D printing of the orthosis. After the assembly of the orthosis, a plantar insole will be added to reduce pressure points and proprioceptive stimulation, and the gait analysis will be performed. At the end of the research will be carried out the comparison of the orthosis models developed with a conventional orthosis.
Master's research project in Biomedical Eng (UNIFESP / UFABC)
Participant: Physiotherapist Eliane Alves de Oliveira Juvenal
DEVELOPMENT OF PLANTAR ORTHOSIS AND PRODUCTION BY ADDITIVE MANUFACTURE
About 70% of the cases of amputation in Brazil are due to complications of diabetes mellitus in peripheral regions such as hands and feet. The combination of lack of sensation in the foot and poor distribution of body weight during walking are factors that contribute to the development of ulcerations. Plantar orthoses are devices for preventive treatment of this problem that allow better distribution of body load and reduction of plantar pressure. The orthoses available in the national market follow pre-established patterns of production that do not always meet the specific needs of each individual, another option is the personalized orthoses made by specialists. The objective of this research is to develop the 3D modeling of a plantar orthosis customized with production from additive manufacture. The 3D plantar orthosis made for a volunteer will be compared to a plantar orthosis made by the conventional method with the help of a podiatrist at the Toledo Clinic.
Research project for scientific initiation PIBITI (UNIFESP)
Participant: Bel. Science and Technology Viviane Mariano da Silva (Bolsa CNPq)