Implementação de um sistema embarcado aplicado ao controle de pressão arterial

Hypertension is a dangerous disease that can cause serious harm to a patient health. In some situations the necessity to control this pressure is even greater, as in surgical procedures and post-surgical patients. To decrease the chances of a complication, it is necessary to reduce blood pressure as soon as possible. Continuous infusion of vasodilators drugs, such as sodium nitroprusside (SNP), rapidly decreased blood pressure in most patients, avoiding major problems. Maintaining the desired blood pressure requires constant monitoring of arterial blood pressure and frequently adjusting the drug infusion rate. Manual control of arterial blood pressure by clinical personnel is very demanding, time consuming and, as a result, sometimes of poor quality. Thus, the aim of this work is the design and implementation of a database of tuned controllers based on patients models, in order to find a suitable PID to be embedded in a Programmable Integrated Circuit (PIC), which has a smaller cost, smaller size and lower power consumption. For best results in controlling the blood pressure and choosing the adequate controller, tuning algorithms, system identification techniques and Smith predictor are used. This work also introduces a monitoring system to assist in detecting anomalies and optimize the process of patient care.

Grantor dc:publisher

Universidade Federal do Rio Grande do Norte

Year dc:date.issued

2011

Author dc:creator

• Ribeiro, Anna Giselle Camara Dantas

Advisor dc:contributor.advisor

• Maitelli, André Laurindo

• Pressão arterial
• Controlador PID
• Sistemas embarcados
• Monitoramento.
• Arterial pressure
• PID controller
• Embedded systems
• Monitoring.

Statement dc:rights

• Acesso Aberto

Language dc:language

por

Repository record dc:identifier.uri

https://repositorio.ufrn.br/jspui/handle/123456789/15404

OAI identifier oai:identifier

oai:repositorio.ufrn.br:123456789/15404