journal article·2025-02-20Open access

Design of a Video Otoscope Prototype with an Integrated Scanner for Hearing Aid Direct Digital Manufacturing: A Preliminary Study

Cândida Malça, Francisco Ganhão, António Carvalho Santos, Carla Silva, Carla Moura

Applied Sciences· Volume 15· Issue 5

Abstract

In the current landscape of hearing rehabilitation, ear mold manufacturing typically involves the injection of silicone into the external ear canal (EEC) of each patient. This invasive procedure poses several risks, including the potential for silicone residue retention and tympanic membrane perforation, which may necessitate surgical intervention. To mitigate these risks, we present the design of a video otoscope that integrates a scanner capable of capturing high-precision, real-time images of the EEC’s geometry. The developed device allows (i) the generation of a 3D CAD model leading to the direct, quick, and low-cost production of customized hearing aids using 3D printing and (ii) the establishment of medical protocols for carrying out diagnoses and monitoring of hearing pathology evolution using methodologies based on Artificial Intelligence. Furthermore, the use of customized hearing aids that allow the application of Rhythmic Auditory Stimulation (RAS) and music therapy enhances audiology as an alternative and innovative way to treat cognitive and degenerative diseases, as well as pathological disorders.
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Research context

OpenAlex topics: Augmented Reality Applications · Ergonomics and Musculoskeletal Disorders

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Mechanical Engineering, Polytechnic Institute of Coimbra, Coimbra Institute of Engineering, Rua Pedro Nunes, 3030-199 Coimbra, Portugal

Centre for Rapid and Sustainable Product Development, CDRSP, Polytechnic Institute of Leiria, 2430-028 Marinha Grande, Portugal

Department of Informatics Engineering, Polytechnic Institute of Coimbra, Coimbra Institute of Engineering, Rua Pedro Nunes, 3030-199 Coimbra, Portugal

Health & Technology Research Center (H&TRC), Coimbra Health School, Polytechnic University of Coimbra, Rua 5 de Outubro, 3045-043 Coimbra, Portugal

Department of Audiology, Physiotherapy and Environmental Health, Polytechnic Institute of Coimbra, ESTESC, Rua 5 de Outubro, 3046-854 Coimbra, Portugal

Applied Research Institute, Polytechnic Institute of Coimbra, i2A, Rua da Misericórdia, Lagar dos Cortiços, S. Martinho do Bispo, 3045-093 Coimbra, Portugal

Research Centre for Natural Resources Environment and Society, CERNAS, Polytechnic Institute of Coimbra, Bencanta, 3045-601 Coimbra, Portugal

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