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| Author(s): |
Samanta Aline Teixeira
Total Authors: 1
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| Document type: | Doctoral Thesis |
| Press: | Artes. 2023-06-13. |
| Institution: | Universidade Estadual Paulista (Unesp). Faculdade de Arquitetura. Artes. Comunicação e Design. Bauru |
| Defense date: | 2023-04-24 |
| Advisor: | Galdenoro Botura Junior; Thaís Regina Ueno Yamada |
| Abstract | |
Origami is an ancient artistic technique that modifies paper into different simple or complex shapes by folding it. Today this art form has evolved on a massive scale and is being incorporated into countless product technologies, architecture, fashion, space engineering, and materials science. In the medical area, origami is gaining special attention from researchers, as its design methods have reached the most innumerable innovative solutions in shapes and structures with multi-functionality. Considering that designers start from the search for resolutions to everyday problems, and against the backdrop of countless possibilities for affirmative action in an area as dear to society as health, this research addresses origami design applied to medical products and how it is possible to design improvements of clinical and surgical instruments using methods based on paper folding. There was an application of questionnaires and interviews for medical professionals and patients to list products with functional problems. From the answers, there is a research focus on the two most mentioned instruments: the vaginal speculum and the laparoscopic morcellation bag, with a survey of specifications through technical visits to factories of these instruments. The research hypotheses are that origami design enables improvements in forms, manufacturing, and sustainability of medical tools. The main objective of the research is to generate knowledge in origami design applied to medicine, and for specific objectives to elaborate project methodologies and new products adapted from origami to medical instruments, together with evaluation and discussion of the results. The material and methods cover the reverse engineering of orimimetic, studies of form and function on paper, adaptive design of tessellation origami crease patterns, dynamometer strength tests, design of compatible mechanisms, and rapid prototyping with laser cutting machine and FDM-type 3D printing with PLA filament. The research results are of the order of three findings: the test of the strength of origami tessellations proved to be an effective method of comparison and choice of more efficient designs for application in medical products, in addition to the discovery of non-linear deformation behavior of origami, an impact reduction advantage relevant for application in products such as shock absorbers; the new product design for the morcellation bag showed 20% more use of the raw material and a 97.5% spatial reduction when it is folded, in addition to reducing production costs by replacing nitinol with a plastic closure dense; the new product design for the vaginal speculum presented manufacturing economic improvements due to the replacement of plastic injection by 3D printing and the replacement of the three integral parts by a single piece, in addition to facilitating scalability for different bodies and sustainable improvements by the use of PLA polymer. We indicate future studies for testing other techniques and alternatives in the shape of the vaginal speculum, use of treatments in materials and biocompatible polymers, and ergonomic testing of the proposed new designs with an evaluation of comfort for patients and usability for health professionals. (AU) | |
| FAPESP's process: | 18/21396-3 - Origami design for medical area: study and development of innovative products |
| Grantee: | Samanta Aline Teixeira |
| Support Opportunities: | Scholarships in Brazil - Doctorate |