Controlled transcutaneous powering of a chronically implanted telemetry device

Radiofrequency (RF) powered subcutaneous transmitter devices offer the unique possibility of very long-term measurements from sites within the body under a variety of normal living conditions without percutaneous connections and concomitant dangers such as local tissue infection. Disturbances in the...

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Bibliographic Details
Published inBiotelemetry and patient monitoring Vol. 6; no. 4; p. 176
Main Author De Vel, O Y
Format Journal Article
LanguageEnglish
Published Switzerland 1979
Subjects
Animals
Dogs
Electric Power Supplies
Electromagnetic Phenomena - instrumentation
Electronics, Medical - instrumentation
Radio Waves
Semiconductors
Skin - anatomy & histology
Telemetry - instrumentation
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Summary:Radiofrequency (RF) powered subcutaneous transmitter devices offer the unique possibility of very long-term measurements from sites within the body under a variety of normal living conditions without percutaneous connections and concomitant dangers such as local tissue infection. Disturbances in the energy transport across the cutaneous barrier may, however, give rise to output data signal fluctuations, which are perceived as transients or drift. A RF-powered implanted biotelemetry device is proposed where the energy transport is controlled by continually optimizing the emission frequency and the duration of energy transfer.
ISSN:0378-309X