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Piezoresistive polymer composites based on polyether block amide and carbon nan...
Pimentel, E.; Pereira, Nelson Miguel Macedo Silva; Costa, P.; Tubio, C. R.; Vilaça, J. L.; Costa, Carlos Miguel Silva; Lanceros-Mendez, S.; Miranda, D.There is a large current need for new and improved approaches to treat chronic diseases such as non-neurogenic bladder diseases, the solution to prevent urethritis or inflammation of the urethral meatus being to slide a catheter along the urethra. In order to improve this procedure, it would be advantageous to place sensors in the catheter, allowing to monitor forces and deformation along the process. This work...
Printable piezoresistive polymer composites for self-sensing medical catheter d...
Pimentel, E.; Costa, Pedro Filipe Ribeiro; Tubio, C. R.; Vilaça, J. L.; Costa, Carlos Miguel Silva; Lanceros-Mendez, S.; Miranda, D.There is a constant demand for new and/or improved health treatments that require flexible sensor devices. This is particularly relevant in relation to neurogenic bladder dysfunction. In this context, polymer composites have been developed based on three different matrices, carboxymethyl cellulose (CMC), styrene-ethylene/butylene-styrene (SEBS) and polyvinyl alcohol (PVA), with different concentrations of multi...
Structural mechanical simulation to optimize the sensor arm geometry to be impl...
Veloso, F.; Miranda, D.; Morais, Pedro; Torres, Helena R.; Laranjeira, Roberto; Ruediger, Mario; Miranda, Francisco; Pinho, António C. M.; Vilaça, J. L.For the treatment of moderate and severe cases of deformational plagiocephaly, an asymmetrical deformation of the skull, a cranial remodeling orthosis (CRO) is used. For the development of a new CRO concept, a pressure sensor grid is placed inside the orthosis that will allow the monitoring of excessive pressures and incorrect CRO positioning throughout the treatment. To implement the sensor grid in the CRO, hi...
Evaluation of spinal posture using Microsoft KinectTM: A preliminarycase-study ...
Castro, A. P. G.; Pacheco, J. D.; Lourenço, C.; Queirós, S.; Moreira, A. H. J.; Rodrigues, N. F.; Vilaça, J. L.tThis work proposes a novel approach to assess spinal curvature, by using Microsoft’s KinectTMto obtain 3Dreconstructed models of subject’s dorsal skin surface in different postures. This method is non-invasive,radiation-free and low-cost.The trial tests here presented intended to evaluate the reliability of this approach, by assessing thetendency of 98 volunteers to present scoliosis. The shoulder height diffe...
A proof of concept of an augmented reality system for Nuss surgery
Ferreira, A.; Morais, P.; Queirós, S.; Veloso, F.; Rodrigues, Nuno F.; Correira-Pinto, J.; Vilaça, J. L.