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PubMed · 159738

Totally implantable dimension telemetry.

J W Knutti·E Wildi·J D Marshall·H V Allen·J D Meindl
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Abstract

A totally implantable dimension telemetry system has been developed to instrument animals for chronic physiological research. Implantable signal processing electronics allow free-roaming animals with no percutaneous leads while retaining the long-term redproducibility of fixed implanted transducers. Two low-powered, custom-integrated circuits have been developed and assembled into an implantable package capable of measuring one dimension channel. The system has been operated in the amplitude modes of through-transmission and reflection as well as in a new Doppler-power configuration and aimed at determining interfaces between blood and surrounding structures. In a addition to single channel systems, these ICs are key elements in multimode, multidimensional implants capable of more accurate characterization of deep body structures.

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AnatomyAnimalsBlood Flow VelocityDoppler EffectElectronics, MedicalFeedbackPhysiologyRheologyTelemetryTransducersUltrasonicsJournal ArticleResearch Support, U.S. Gov't, Non-P.H.S.Research Support, U.S. Gov't, P.H.S.

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J W Knutti, E Wildi, J D Marshall, H V Allen, J D Meindl. 1979. Totally implantable dimension telemetry.. https://pubmed.ncbi.nlm.nih.gov/159738/

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