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The influence of pauses on the fatigue of upper limb muscles during the task of...

The aim of this study was to analyze the influence of position and pauses on muscle activity and fatigue during the task of ironing. Ten female participants performed the task of ironing in two different positions (standing and sitting) for 10 minutes each with a one-minute pause at the end of each task. Muscle activity and fatigue from the upper trapezium, anterior deltoid and pectoralis major were analyzed us...

Representação, análise da complexidade, planeamento e execução de processos ind...

Dissertação apresentada para obtenção do grau de Doutor em Engenharia Electrotécnica e de Computadores na Faculdade de Engenharia da Universidade do Porto, sob a orientação do Prof. Doutor Carlos Fernando da Silva Ramos e da Prof. Doutora Zita Maria Almeida do Vale

Concepção e implementação de um sistema pericial no domínio da cardiologia

Dissertação apresentada para obtenção do grau de Mestre em Engenharia Electrotécnica e de Computadores, na Faculdade de Engenharia da Universidade do Porto, sob a orientação do Prof. Doutor Eugénio da Costa Oliveira

Medical device specificities: opportunities for a dedicated product development...

The medical sector, similarly to other industries as the aviation industry, has to comply with multiple regulations, guidelines and standards. In addition, there are multiple definitions for the expression ‘medical device’ and, before entering the market, manufacturers must demonstrate their product’s safety and effectiveness. In such a complex and demanding environment it is crucial to know t...

An Ontology Model for the Medical Device Development Process in Europe

Product development refers to the transformation process of an idea into a product or service. It can be applied to any sector, but special attention must be given to each industry particularities. In the case of medical devices, the development process should consider the multiple definitions of the term ‘medical device’, a vast regulatory framework as well as numerous organizations that evaluate t...

Mechanical properties of stent-graft materials

An aneurysm is a localized blood-filled dilatation of an artery whose consequences can be deadly. One of its current treatments is endovascular aneurysm repair (EVAR), a minimally invasive procedure in which an endoprosthesis, called a stent-graft, is placed transluminally to prevent wall rupture. Early stent-grafts were custom designed for the patient through the assembling of off-the-shelf components by the o...

Modeling of the medical device development process

Models are abstract representations of reality that are built, analyzed and manipulated to augment the understanding of that reality. They can either be mental or codified but, in both cases, they contribute to good decision-making by ensuring that the right people use the right information at the right time. In order to reduce time to market, companies commonly adopt product development processes and the medic...

A dedicated methodology for the development of new medical technologies

The scientific discoveries of the last century are responsible for most of the medical devices currently in use. In this century, considering the advances namely in the computational power and the diffusion of the internet, one can expect a revolution in the use of medical technologies. Most certainly, new products and services will appear but only the ones that are supported by solid business plans will thrive...

Desired features for a novel stent-graft

Abdominal aortic aneurysms are indolent but deadly. Among the current treatments is endovascular aneurysm repair, a minimally invasive procedure that resorts to a stent-graft to shield the aortic wall from blood pressure. Although this procedure allowed more patients to be treated and offers several other advantages, complications still occur and there is a need for a more efficient stent-graft. Here, the early...

Evolution of the cost-effectiveness of Endovascular and Open Surgical Repair of...