Computer-Aided Method and Rapid Prototyping for the Personalized Fabrication of a Silicone Bandage Digital Prosthesis

Nuno Ventura Ferreira, Nuno Leal, Inês Correia Sá, Ana Reis, Marisa Marques


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.
Keywords: Reconstructive Surgical Procedures; Fingers; Computer-Aided Design; Prostheses and Implants; Silicones.

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