Piezoelectric paint-based force sensor for hand rehabilitation
- Payo Gutiérrez, Ismael
- Fernández Almenar, Javier
- Rodríguez Rosa, David
- Juárez Pérez, Sergio
- López Dolado, Elisa
- Joaquín Roca González (coord.)
- Dolores Ojados González (coord.)
- Juan Suardíaz Muro (coord.)
Editorial: Universidad Politécnica de Cartagena
ISBN: 978-84-17853-76-1
Año de publicación: 2023
Páginas: 94-97
Congreso: Congreso Anual de la Sociedad Española de Ingeniería Biomédica. CASEIB (41. 2023. Cartagena)
Tipo: Aportación congreso
Resumen
A novel hand rehabilitation device for spinal cord injury patients has been designed with piezoelectric paint-based cantiléver beam force sensors. The piezoelectric paint is made of piezoelectric powder homogeneously distributed in a polymer binder (water-based acrylic). The proposed device is constituted by 16 cantilever beam force sensors activated by push-buttons which allows us to measure the applied forcé with the fingers of the hand helping in the recovery of the patient. The sensors were calibrated, obtaining a linear relationship between the electric signal and the applied forcé and a sensitivity about 8 V/N. The proposed method has been designed to improve the hand-eye coordination when the patient applies a controlled force with the fingers. Two exercises were proposed for tracking different force profiles and demonstrate the usefulnes of the device.