Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/48496
Título: | Piezoresistive polymer-based materials for real-time assessment of the stump/socket interface pressure in lower limb amputees |
Autor(es): | Ferreira, Armando José Barros Correia, Vítor Manuel Gomes Mendes, Emilia Lopes, Cláudia Jesus Ribeiro Vaz, F. Lanceros-Méndez, S. |
Palavras-chave: | Sensor system Pressure Data acquisition Data transmission Skin – sock interface |
Data: | Fev-2017 |
Editora: | IEEE |
Revista: | IEEE Sensors Journal |
Citação: | Ferreira, A., Correia, V., Mendes, E., Lopes, C., Vaz, J. F. V., & Lanceros-Mendez, S. (2017). Piezoresistive Polymer-Based Materials for Real-Time Assessment of the Stump/Socket Interface Pressure in Lower Limb Amputees. IEEE Sensors Journal, 17(7), 2182-2190 |
Resumo(s): | The present work reports a suitable piezoresistive Carbon Nanotubes / poly(vinylidene fluoride) - CNT/PVDF composite capable of measuring the interface pressure within prosthetic stump/sockets. The transducers were prepared by hot pressing with CNT, with sample concentrations up to 10 wt.%. The sensibility (Gauge Factor) of the composites was characterized using a mechanical testing equipment and the values reached 6.2. After the optimization of the materials, tests were conducted with a prototype placed in lower limb amputee patients, performing several standing and walking protocols. The prototype was tested in four lower limb amputees using a CNT concentration of 2 wt.% within the PVDF matrix. The transducers were fabricated with dimensions of 10×25 mm2 and ~1mm of thickness functionalized with Ti-Ag thin film electrodes at the surface. To acquire the electrical signal, an electronic circuit was developed with a wireless data acquisition system. The results suggest a strong application potential of the developed sensor prototype, namely as a complementary diagnostic tool, supporting socket design and rectification, being therefore an effective mean to increase patients’ quality of life. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/48496 |
DOI: | 10.1109/JSEN.2017.2667717 |
ISSN: | 1530-437X |
e-ISSN: | 1558-1748 |
Versão da editora: | http://ieeexplore.ieee.org/abstract/document/7850965/ |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | CDF - FCD - Artigos/Papers (with refereeing) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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21.pdf Acesso restrito! | 1,85 MB | Adobe PDF | Ver/Abrir |