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Single frequency RF powered ECG telemetry systemIt has been demonstrated that a radio frequency magnetic field can be used to power implanted electronic circuitry for short range telemetry to replace batteries. A substantial reduction in implanted volume can be achieved by using only one RF tank circuit for receiving the RF power and transmitting the telemetered information. A single channel telemetry system of this type, using time sharing techniques, was developed and employed to transmit the ECG signal from Rhesus monkeys in primate chairs. The signal from the implant is received during the period when the RF powering radiation is interrupted. The ECG signal is carried by 20-microsec pulse position modulated pulses, referred to the trailing edge of the RF powering pulse. Satisfactory results have been obtained with this single frequency system. The concept and the design presented may be useful for short-range long-term implant telemetry systems.
Document ID
19790042061
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Ko, W. H.
(Case Western Reserve Univ. Cleveland, OH, United States)
Hynecek, J.
(Case Western Reserve Univ. Cleveland, OH, United States)
Homa, J.
(Case Western Reserve University Cleveland, Ohio, United States)
Date Acquired
August 9, 2013
Publication Date
February 1, 1979
Publication Information
Publication: IEEE Transactions on Biomedical Engineering
Volume: BME-26
Subject Category
Man/System Technology And Life Support
Accession Number
79A26074
Funding Number(s)
CONTRACT_GRANT: NIH-GM-14267
CONTRACT_GRANT: NGR-36-027-053
Distribution Limits
Public
Copyright
Other

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