Title :
Remotely powered implantable heart monitoring system for freely moving animals
Author :
Kilinc, Enver G. ; Moya, Alejandro C. ; van Lintel, Harald ; Renaud, Pierre ; Maloberti, Franco ; Qing Wang ; Dehollain, Catherine
Author_Institution :
RF-IC Group, EPFL, Lausanne, Switzerland
Abstract :
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 26×13×5.5 mm and the overall power consumption is around 7 mW. Experimental results show the effectiveness of the implantable monitoring system.
Keywords :
amplitude shift keying; biomedical communication; biomedical transducers; blood pressure measurement; cardiology; electric sensing devices; monitoring; piezoresistive devices; power control; prosthetics; radio receivers; radio transmitters; OOK modulated transmitter; autonomous power control system; blood pressure measurement; data transmission; freely moving animal; frequency 8 MHz; frequency 868 MHz; left ventricle; piezoresistive sensor die; power consumption; remotely powered implantable heart monitoring system; Animals; Biomedical monitoring; Coils; Heart; Monitoring; Power demand; Transmitters;
Conference_Titel :
Advances in Sensors and Interfaces (IWASI), 2013 5th IEEE International Workshop on
Conference_Location :
Bari
Print_ISBN :
978-1-4799-0039-8
DOI :
10.1109/IWASI.2013.6576092
