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Updated: Apr 18, 2026

Rapid and Low-cost Prototyping of Medical Devices Using 3D Printed Molds for Liquid Injection Molding
Published on: June 27, 2014
[Computer-aided method and rapid prototyping for the personalized fabrication of a silicone bandage digital
Nuno Ventura Ferreira1, Nuno Leal2, Inês Correia Sá3
1Departamento de Cirurgia. Faculdade de Medicina. Universidade do Porto. Porto. Portugal.
Abstract:
The fabrication of digital prostheses has acquired growing importance not only for the possibility for the patient to overcome psychosocial trauma but also to promote grip functionality. An application method of three dimensional-computer-aided design technologies for the production of passive prostheses is presented by means of a fifth finger amputee clinical case following bilateral hand replantation.Three-dimensional-computerized tomography was used for the collection of anthropometric images of the hands. Computer-aided design techniques were used to develop the digital file-based prosthesis from the reconstruction images by inversion and superimposing the contra-lateral finger images. The rapid prototyping manufacturing method was used for the production of a silicone bandage prosthesis prototype. This approach replaces the traditional manual method by a virtual method that is basis for the optimization of a high speed, accurate and innovative process.

