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New University of Lisbon, Portugal

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53 Papers

Ortho-Monitorizer: A Portable Device to Monitor the Use of Upper Limb Orthoses - A Concept Proof

Topics: Health Monitoring Devices; Rehabilitation Technology; Wearable and Mobile Devices; Biomedical Equipment & Instrumentation

Authors: Raquel Gonçalves ¹ , Carla Quintão ^{1

;

2} , Ricardo Vigário ^{1

;

2} and Cláudia Quaresma ^{1

;

2}

Affiliations: ¹ Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal , ² LIBPhys - UNL, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal

Digital Object Identifier: 10.5220/0011012000003123

Proceedings of BIODEVICES 2022, ISBN: 978-989-758-552-4

Quick Abstract

This article presents the development of a wearable and portable system, the Ortho-Monitorizer, which allows an objective, continuous and simultaneous monitoration of the temperature and pressure exerted on the skin on the 3 main pressure points derived from the use of a hand and wrist orthosis. It also allows the monitorization of the patient’s compliance to the orthosis, providing its time of use. This way, adjustments to the orthosis can be optimized, reducing the discomfort felt by the patient, increasing compliance, reducing the risk of pressure sores’ formation derived from inadequate levels of pressure applied, and consequently, increasing the effectiveness of orthosis’ use. Therefore, an Arduino Uno, powered by a powerbank, is used as microcontroller. Three force sensors and three temperature sensors are controlled by the microcontroller to detect the pressure and temperature. A Bluetooth Low Energy module is used to send data from the Arduino to an android application under development, which will allow healthcare professionals to consult all the information and clinical history relating to each patient, as well as allowing the patient to develop a greater awareness and sense of responsibility regarding their performance in relation to the guidelines provided by the health professional.

Comparative Analysis of Short-range Wireless Technologies for m-Health: Newborn Monitoring Case Study

Topics: Wireless Body Area Networks; Remote Health Monitoring; Wireless Body Sensors; IoT for eHealth

Authors: Fernando Crivellaro ¹ , Anselmo Costa ² and Pedro Vieira ¹

Affiliations: ¹ Faculty of Science and Technology, NOVA University of Lisbon, Caparica Campus, 2829-516 Caparica, Portugal , ² Departament of Pediatrics, Hospital Garcia de Orta, EPE, Almada, Portugal

Digital Object Identifier: 10.5220/0010611700990106

Proceedings of WINSYS 2021, ISBN: 978-989-758-529-6

Quick Abstract

The Healthcare and the Internet of Things (IoT) are being integrated to improve the people life quality in many aspects, as for example, through the increasing of the patients wellness and also optimizing Hospitals activities. One of the main actors in this integration is the communication link that connects the people to the systems, which is made in most of the cases through wireless devices. There are many available wireless technologies to be applied in a great diversity of healthcare scenarios, in which would stands out specific technologies advantages for each one. Therefore, among the great number of information about it, in this work it is detailed the physical layer characteristics of 9 most used technologies in short-range wireless applications for healthcare. Also, it is made a technology selection for one specific application scenario of newborn babies monitoring.

A Macro View Model of a Bilirubin Monitoring System for Newborns

Topics: Health Monitoring Devices; Wireless Systems and Biotelemetry; Wearable and Mobile Devices

Authors: Fernando Crivellaro ¹ , Ana Sousa ¹ , Maria Narciso ¹ , Rui Valente de Almeida ¹ , Anselmo Costa ² and Pedro Vieira ¹

Affiliations: ¹ Faculty of Science and Technology, NOVA University of Lisbon, Caparica Campus, 2829-516 Caparica, Portugal , ² Department of Paediatrics, Hospital Garcia de Orta, EPE, Almada, Portugal

Digital Object Identifier: 10.5220/0008965301360141

Proceedings of BIODEVICES 2020, ISBN: 978-989-758-398-8

Quick Abstract

All newborns are routinely monitored for the development of jaundice due to they biological immaturity to conjugate bilirubin. This situation is worrying because neonatal jaundice is a very common condition and high-levels of unconjugated bilirubin concentration have neurotoxic effects. Therefore, a continuous bilirubin monitoring system for newborns is being suggested to overcome visual inspection errors and to reduce invasive procedures. This system is presented through a macro view modeling approach, in order to validate the requirements and to build a base infrastructure to posteriorly progress in more detailed diagrams for development support. The Unified Modeling Language was used for diagrams composition and, thus, it was also developed a brief description about the different diagram types, in order to clarify the diagrams selection. The system modeling at early stages was considered a powerful engineering methodology for new designs due to its diffusion capacity of the system basic concepts for the respective interdisciplinary group involved in this research.

Analysis of the Relationship between Electrodermal Activity and Heart Rate with Pain in Individuals with a Shoulder Pathology

Topics: Biomedical Sensors; Electrocardiography and Heart Monitoring; Wearable and Mobile Devices; Biomedical Equipment & Instrumentation

Authors: M. Oliveira ¹ , C. Quintão ^{1

;

2} , R. Vigário ^{1

;

2} , B. Mendes ³ , C. Caldeira ³ , F. Rodrigues ³ and C. Quaresma ^{1

;

2}

Affiliations: ¹ Departamento de Física, Faculdade de Ciências e Tecnologias, Universidade Nova de Lisboa, 2829-516 Monte da Caparica, Portugal , ² Laboratório de Instrumentação, Engenharia Biomédica e Física da Radiação (LIBPhys-UNL), Departamento de Física, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Monte da Caparica, 2892-516, Caparica, Portugal , ³ Área de Medicina Física e Reabilitação, Hospital Curry Cabral, Centro Hospitalar Lisboa Central, Portugal

Digital Object Identifier: 10.5220/0008945001100117

Proceedings of BIODEVICES 2020, ISBN: 978-989-758-398-8

Quick Abstract

Currently, pain analysis in a clinical environment is not common and is at fault for being subjective and always dependent on a personal response. Therefore, it is imperative to use physiological signals to quantify pain and make diagnosis more objective. This article aims to study the relationship between pain, through its analog scale, with the electrodermal and cardiac signals of individuals characterized by having a shoulder pathology that gives rise to recurrent pain. This study was carried out on 21 patients from Hospital Curry Cabral, who were part of the Occupational Therapy department’s care in the area of Physical Medicine and Rehabilitation, and 18 individuals without any pathology, thus serving as a control group. All participants followed an experimental protocol consisting in the measurement of electrodermal and cardiac signals and pain level when performing two different movements. The results suggest that there is indeed a relationship between the two measured signals and pain. The greater the pain experienced by the individual, the greater the amplitude of the electrodermic signal and heart rate appears to be.

RehabVisual: Implementation of a Low Cost Eye Tracker without Pre-calibration

Topics: Rehabilitation Technology; Diagnostic devices

Authors: Pedro Dias ¹ , Ana Ferreira ^{2

;

3} , Ricardo Vigário ^{1

;

3} , Cláudia Quaresma ^{1

;

3} and Carla Quintão ^{1

;

3}

Affiliations: ¹ Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal , ² Departamento de Saúde, Escola Superior de Saúde, Instituto Politécnico de Beja, 7800-111 Beja, Portugal , ³ LIBPhys - UNL, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal

Digital Object Identifier: 10.5220/0009148002350241

Proceedings of BIODEVICES 2020, ISBN: 978-989-758-398-8

Quick Abstract

Visual impairments affect the life of millions of people. Some of these impairments can be corrected or diminished. Visual stimulation is one way of visual rehabilitation, that has produced better results when used in the early years of life. As there is nothing standardized in this field, a platform named RehabVisual was developed (Machado et al., 2018; Santos, 2018). This platform has the objective of creating an individual visuomotor rehabilitation for children under two years old, that were born prematurely. In order to reach a therapists' need, a video analysis tool was developed. This tool should be capable of following the motion of the patients' eyes, with the purpose of facilitating and making the analysis of their reactions to the stimuli more objective. The solution developed on this paper consists on the creation of an eye tracker system, that does not need to be pre-calibrated and is low-cost. The eye tracker was tested in healthy individuals and the results show that is very effective in detecting horizontal eye variations.

GNEUROPATHY: Validation Process at Clinical Environment

Topics: Health Monitoring Devices; Diagnostic Devices

Authors: Claudia Quaresma ¹ , Madalena Gomes ² , Heitor Cardoso ³ , Nuno Ferreira ³ , Ricardo Vigário ⁴ , Carla Quintão ⁴ and Micaela Fonseca ⁵

Affiliations: ¹ Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2892-516 Monte da Caparica, Portugal, Laboratório de Instrumentação, Engenharia Biomédica e Física da Radiação (LIBPhys-UNL), Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2892-516 Monte da Caparica, Portugal, VR4NeuroPain, Rua Comandante António Feio nº26 1C1, 2800-255 Almada and Portugal , ² Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2892-516 Monte da Caparica and Portugal , ³ VR4NeuroPain, Rua Comandante António Feio nº26 1C1, 2800-255 Almada and Portugal , ⁴ Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2892-516 Monte da Caparica, Portugal, Laboratório de Instrumentação, Engenharia Biomédica e Física da Radiação (LIBPhys-UNL), Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2892-516 Monte da Caparica and Portugal , ⁵ Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2892-516 Monte da Caparica, Portugal, Laboratório de Instrumentação, Engenharia Biomédica e Física da Radiação (LIBPhys-UNL), Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2892-516 Monte da Caparica, Portugal, VR4NeuroPain, Rua Comandante António Feio nº26 1C1, 2800-255 Almada, Portugal, Universidade Europeia, Laureate International Universities, Estrada da Correia, nº53, 1500-210 Lisboa and Portugal

Digital Object Identifier: 10.5220/0007579702750279

Proceedings of BIODEVICES 2019, ISBN: 978-989-758-353-7

Quick Abstract

Spinal cord injuries are one of the most traumatic situations with a major impact on a person's quality of life. This type of injury have a extremely impact in the performance of daily life activities not only due to motor alterations but also due to the appearance of neuropathic pain Throughout the rehabilitation process the evaluation and intervention methodologies are not very systematic and are not personalized. Thus, to bridge this gap, the VR4NeuroPain was developed a technology that associates virtual reality with a glove "GNeuroPathy". The glove "GNeuroPathy" allows the collection of physiological parameters, namely to identify the electrodermic activity (EDA) while the patient carries out activities in an immersive environment. The main objective of this article is to present the validation process of the "GNeuroPathy" in clinical context. "GNeuroPathy" was applied to a group of 17 individuals with incomplete spinal cord injury. The results showed that "GNeuroPathy" is easy to apply and is suitable for comfort and texture. Data were also collected from EDA and it was found that there is a significant difference in signal amplitude in patients with low and high functionality.

Related Ontology Subjects/Areas/Topics (6)

Biomedical Engineering		Devices		Human-Computer Interaction
Biomedical Instruments and Devices		Health Monitoring Devices		Physiological Computing Systems

Light Hazard Measurement on an Ophthalmic Instrument

Topics: Biomedical Metrology; Imaging and Visualization Devices; Wearable and Mobile Devices; Diagnostic Devices

Authors: David Melo ¹ , Pedro Vieira ² and Filipe Soares ¹

Affiliations: ¹ Fraunhofer Portugal AICOS, Rua Alfredo Allen, 455/461, 4200-135, Porto and Portugal , ² Department of Physics, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Quinta da Torre, 2829-516, Caparica and Portugal

Digital Object Identifier: 10.5220/0007575800870098

Proceedings of BIODEVICES 2019, ISBN: 978-989-758-353-7

Quick Abstract

When the acquisition of images is performed on human body structures, the safety of the person on which the images are being obtained acquires fundamental importance. This condition gathers even more relevance when the goal of the image acquisition is related with health examination. To ensure that every physician, when imaging human structures is undoubtedly secure that it will not harm or cause any non-tolerable discomfort to the subject undergoing the exam, medical devices have to surpass a set of specific norms depending on the nature of the structure being examined. More specifically related with instruments for eye related diseases diagnostic and treatment, the ISO-15004-2 norm is the currently accepted. As some types of eye exams rely on highly concentrated radiation, its power has to be limited in order to prevent irreversible damage. In this paper, a Light Hazard Measurement for a specific prototype will be addressed, on which the power calculation method for the emitted radiation will be described and the compliance of the limiting norms will be verified. The main conclusion from the work here described is that the prototype can be classified as a Group 1 Ophthalmic Device according to the ISO-15004-2 norm.

Related Ontology Subjects/Areas/Topics (4)

Biomedical Engineering		Biomedical Metrology		Imaging and Visualization Devices
Biomedical Instruments and Devices

VMSReport: An Application for Visual Performance and Motor Skills Evaluation

Topics: Health Monitoring Devices; Rehabilitation Technology; Diagnostic Devices

Authors: Ana Ferreira ¹ , Cláudia Quaresma ² and Carla Quintão ²

Affiliations: ¹ Departamento de Física, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Caparica, Portugal, Departamento de Saúde, Escola Superior de Saúde do Instituto Politécnico de Beja, Beja, Portugal, LIBPhys - UNL, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Caparica and Portugal , ² Departamento de Física, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Caparica, Portugal, LIBPhys - UNL, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Caparica and Portugal

Digital Object Identifier: 10.5220/0007581102800284

Proceedings of BIODEVICES 2019, ISBN: 978-989-758-353-7

Quick Abstract

With the increase of evidence-based practice, the registration and dissemination of the assessment data, became more and more important. In paediatric rehabilitation those procedures are particularly important since they allow for an initial characterization of the clinical situation, to compare results in different assessment moments and to disseminate the evaluation outcomes. However, in several kinds of evaluation, data registration is a complex and slow process. Similarly, the comparison of raw score to standard score can be very time consuming. To minimize that challenge it is important to develop a digital system that makes the registration fast and objective. The main purpose of this paper is to present VMSReport: an application to registrate visuomotor performance data, visual perception, as well as and motor coordination, in children aged 2 years and older. That digital tool allows also to compare results between various moments of assessment and can automatically generate a report for each evaluation. It also builds a database, which facilitates the process of global data analysis and modelling. This tool was developed in a clinical environment, giving clear answers to requests from rehabilitation caregivers. A pilot study, with 10 children, has already been carried out. The VMSReport can now be used.

Related Ontology Subjects/Areas/Topics (7)

Biomedical Engineering	Health Monitoring Devices	Physiological Computing Systems
Biomedical Instruments and Devices	Human-Computer Interaction	Rehabilitation Technology
Devices

VR4NEUROPAIN: Interactive Rehabilitation System

Topic: Rehabilitation Technology

Authors: Micaela Fonseca ¹ , Heitor Cardoso ² , Nuno Ferreira ² , Tiago Loureiro ³ , Inês Gomes ⁴ and Claudia Quaresma ⁵

Affiliations: ¹ Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2892-516 Monte da Caparica, Portugal, Laboratório de Instrumentação, Engenharia Biomédica e Física da Radiação (LIBPhys-UNL), Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2892-516 Monte da Caparica, Portugal, VR4NeuroPain, Rua Comandante António Feio nº26 1C1, 2800-255 Almada, Portugal, Universidade Europeia, Laureate International Universities, Estrada da Correia, nº53, 1500-210 Lisboa and Portugal , ² VR4NeuroPain, Rua Comandante António Feio nº26 1C1, 2800-255 Almada and Portugal , ³ Collide, Avenida D. João II, nº 43, 9º. 1990-084 Lisboa and Portugal , ⁴ IMG - Strategy Branding Visual Communication, Avª Oscar Monteiro Torres 16, 2.ºD, 1000-219 Lisboa and Portugal , ⁵ Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2892-516 Monte da Caparica, Portugal, Laboratório de Instrumentação, Engenharia Biomédica e Física da Radiação (LIBPhys-UNL), Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2892-516 Monte da Caparica and Portugal

Digital Object Identifier: 10.5220/0007581402850290

Proceedings of BIODEVICES 2019, ISBN: 978-989-758-353-7

Quick Abstract

Virtual Reality (VR) has finally found its way to be used in the healthcare industry, covering many different areas such as medical training, marketing, patient education, psychotherapy and physiotherapy, and many others. The need to develop increasingly personalized technology to be used during the rehabilitation process is extremely important. Therefore, the VR4NeuroPain solution aims to cover the unique influence that it obtains from the VR applied to the rehabilitation area, creating unique and virtual spaces where patients with neuropathic pain can be submitted to their therapy sessions, not only in hospitals and clinics, but also at home. The VR4NeuroPain system monitors electrophysiological data in real time, and consists of the following components: Virtual Reality Interface, Plataform and a Glove-“GNeuroPathy”. The main objective of this paper is to describe all the components of VR4NeuroPain solution. The system can be used by physicians, occupational therapists and physiotherapists. VR4Neuropain allows the use of innovative and interactive intervention methodologies.

Related Ontology Subjects/Areas/Topics (3)

Biomedical Engineering

Biomedical Instruments and Devices

Rehabilitation Technology

Quadcopter Control Approaches and Performance Analysis

Topics: Optimization Algorithms; Intelligent Fault Detection, Diagnosis and Prognostics; Engineering Applications on Intelligent Control Systems and Optimization

Authors: Vasco Brito ¹ , Alexandre Brito ² , Luis Brito Palma ¹ and Paulo Gil ³

Affiliations: ¹ Universidade Nova de Lisboa-FCT-DEE, 2829-516 Caparica, Portugal, Uninova-CTS, 2829-516 Caparica and Portugal , ² Universidade Nova de Lisboa-FCT-DEE, 2829-516 Caparica and Portugal , ³ Universidade Nova de Lisboa-FCT-DEE, 2829-516 Caparica, Portugal, Uninova-CTS, 2829-516 Caparica, Portugal, Universidade de Coimbra-CISUC, 3030-290 Coimbra and Portugal

Digital Object Identifier: 10.5220/0006902600860093

Proceedings of ICINCO 2018, ISBN: 978-989-758-321-6

Quick Abstract

This article presents the kinematic and dynamic model of a X8 quadcopter, as well as control methodologies based on the PID controller and Sliding Mode Controller. The main contributions are centered on the controllers tuning based on particle swarm optimization algorithm and on the controllers performance comparison for nominal operation and for faulty situations. In order to show the overall performance, simulation results for trajectory and orientation tracking control are presented.

Related Ontology Subjects/Areas/Topics (3)

Informatics in Control, Automation and Robotics

Intelligent Control Systems and Optimization

Optimization Algorithms

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