Wireless Implant Communications for Biomedical Monitoring Sensor Network

Galvanic coupling provides a novel data transmission between sensor units for low frequency intra-body communication with electrodes attached to the human skin. In this work, that approach has been adapted to implantable miniaturized pills. A communication system for wireless data transmission in mu...

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Bibliographic Details
Main Authors: Wegmueller, Marc Simon, Hediger, Martin, Kaufmann, Thomas, Buergin, Felix, Fichtner, Wolfgang
Format: Conference Proceeding
Language:English
Subjects:
Biomedical electrodes
Biomedical monitoring
Biosensors
Couplings
Data communication
Frequency conversion
Galvanizing
Implants
Wireless communication
Wireless sensor networks
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Description
Summary:Galvanic coupling provides a novel data transmission between sensor units for low frequency intra-body communication with electrodes attached to the human skin. In this work, that approach has been adapted to implantable miniaturized pills. A communication system for wireless data transmission in muscle tissue is developed capable of transmitting data on four channels concurrently with a throughput of 4.8 kbit/s. The main focus is the future implantability of such a miniaturized system for medical long term surveillance of patients. To achieve this goal, circuit size, low power consumption and electrical safety have to be carefully considered. The implemented frequency division multiple access (FDMA) system works in the frequency range between 100 kHz and 250 kHz. Tests have been processed with 4 transmitters units. The system architecture features the possibility of migration into a single system-on-chip.
ISSN:0271-4302
2158-1525
DOI:10.1109/ISCAS.2007.378029