Publication

Remotely powered implantable heart monitoring system for freely moving animals

Philippe Renaud, Catherine Dehollain, Harald Van Lintel, Enver Gürhan Kilinç, Alejandro Coronado Moya, Franco Maloberti
2013
Conference Papers

Résumé

This paper presents a remotely powered implantable heart monitoring system for freely moving animals. The system measures the blood pressure in the left ventricle of the heart and transmits the data to a database unit. The implanted unit is remotely powered over 25 mm at 8 MHz and has autonomous power control system for changing received power levels due to the moving animal. The blood pressure is measured by a piezoresistive sensor die. The data is transmitted by a OOK modulated transmitter at 868 MHz. The system is realized by using discrete components which are available on the market. The overall size of the implanted unit is 26x13x5.5 mm and the overall power consumption is around 7 mW. Experimental results show the effectiveness of the implantable monitoring system.

Source officielle

https://infoscience.epfl.ch/entities/publication/666adae2-4a5c-41a5-8795-56d243a6cd03

À propos de ce résultat

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Philippe Renaud, Catherine Dehollain, Harald Van Lintel, Enver Gürhan Kilinç, Alejandro Coronado Moya, Franco Maloberti
2013
Conference Papers

Résumé

Source officielle

https://infoscience.epfl.ch/entities/publication/666adae2-4a5c-41a5-8795-56d243a6cd03

À propos de ce résultat

Proximité ontologique

Health sciences

Cardiologie: Maladie cardiovasculaire

Concepts associés (32)

Blood pressure

Blood pressure (BP) is the pressure of circulating blood against the walls of blood vessels. Most of this pressure results from the heart pumping blood through the circulatory system. When used without qualification, the term "blood pressure" refers to the pressure in a brachial artery, where it is most commonly measured. Blood pressure is usually expressed in terms of the systolic pressure (maximum pressure during one heartbeat) over diastolic pressure (minimum pressure between two heartbeats) in the cardiac cycle.

Défibrillateur automatique implantable

vignette|280x280px|Modèle de défibrillateur automatique implantable. Le défibrillateur automatique implantable (DAI) est un dispositif médical implantable actif de type stimulateur cardiaque permettant, outre les fonctions classiques de stimulation, la détection et le traitement des troubles du rythme ventriculaire. Il est indiqué dans la prévention de la mort subite, essentiellement lors des maladies cardiaques avec mauvais fonctionnement mécanique du ventricule gauche.

Ventricule cardiaque

Les ventricules cardiaques sont la ou les deux cavités inférieures du cœur. Les mammifères et oiseaux en possèdent deux parfaitement étanches, les crocodiliens deux partiellement étanches, les autres reptiles deux mais plus ou moins bien formés tandis que les amphibiens n'en possèdent qu'un seul. La contraction ventriculaire suit la contraction atriale, et est plus puissante et plus longue que celle-ci. Lorsque l'espèce possède deux ventricules, ils sont séparées par une paroi musculaire épaisse appelé le septum interventriculaire.

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