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Related Experiment Videos

Integrated power controllers and RF data transmitters for totally implantable telemetry.

H V Allen, J W Knutti, J D Meindl

    Biotelemetry and Patient Monitoring
    |January 1, 1979
    PubMed
    Summary

    Two new integrated circuits enable compact, reliable telemetry systems for implantable devices. An automatic power switch conserves battery life, while a versatile RF transmitter supports advanced data transmission.

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    Implantable telemetry in biomedical research.

    IEEE transactions on bio-medical engineering·1984

    Area of Science:

    • Biomedical Engineering
    • Electrical Engineering
    • Implantable Devices

    Background:

    • Totally implantable instrumentation systems require reliable data transmission and power control.
    • Existing telemetry solutions can be bulky and prone to accidental battery drain.

    Purpose of the Study:

    • To develop custom integrated circuits (ICs) for compact and reliable telemetry packages.
    • To improve power management and data transmission capabilities in implantable systems.

    Main Methods:

    • Design of two custom integrated circuits: an elapsed-time power switch and a precision RF transmitter.
    • The power switch features remote activation via RF burst and automatic shut-off (1-5 min).
    • The RF transmitter operates up to 125 MHz in FM or pulse-coded formats, requiring minimal external components.

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    Main Results:

    • Development of a novel elapsed-time power switch to prevent accidental battery drainage in implanted devices.
    • Creation of a high-frequency (125 MHz) RF transmitter with flexible modulation options (FM, pulse-coded).
    • Both ICs are designed as fundamental building blocks for diverse implantable telemetry applications.

    Conclusions:

    • The developed ICs significantly advance the realization of compact and reliable totally implantable instrumentation systems.
    • These components offer enhanced power efficiency and versatile data transmission for medical implants.
    • The integrated circuits serve as foundational elements for future innovations in implantable telemetry.