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fully implantable transmitters

Discover our range of advanced fully implantable telemetry transmitters, designed for high-performance monitoring of ECG, EEG, EMG, sympathetic nerve activity (SNA), temperature, and blood pressure. These transmitters, compatible with large and small animal models, feature a robust medical-grade silicone coating and patented inductive energy transfer for seamless recharging. With no need for battery replacements and high signal resolution, our systems offer reliable and uninterrupted data collection. Learn more about achieving your telemetry research goals on our website.

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fully implantable transmitters

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  1. fully implantable transmitters

  2. product range • ecg, eeg, emg, sampled at 2kHz. • sna (sympathetic nerve activity) sampled at 8kHz • temperature • pressure (arterial or venous blood, bladder, pleural), sampled at 500Hz

  3. transmitter features (1/2) • fully implantable • covered with medical grade silicone • completely sealed, • with no battery to be replaced • transmission up to 5m • large and small animal models available

  4. transmitter features (2/2) • designed to be reused in multiple animals • pressure leads are filled with gel that prevents blood from entering the catheter lumen • ecg cables are filled with a biocompatible silicone to avoid contamination

  5. transmitters • 6 types of transmitters • 1 pressure • 1 pressure + 1 biopotential • 1 biopotential • 2 biopotential • 1 SNA + 1 pressure • 1 SNA + 1 biopotential • temperature is standard in all devices • transmitters can remotely be turned on and off • no need to enter the room and disturb the animals

  6. chargers • implants are fitted with a rechargeable battery • recharging is performed through patented inductive energy transfer • measurement from the subject may continue while the implant is recharged • there are no costs or down times due battery replacements and refurbishments

  7. blood pressure, ecg, temperature rat data a few hours after implantation (courtesy Sanofi Aventis, France)

  8. implants for large animals can run up to 200 hours without recharging using the remote on/off feature, allow recording of 10mn every hour for more than 6 weeks long transmission range (5m) high signal resolution ability pair or group house animals

  9. receivers • one receiver can acquire up to 12 transmitters • open system with analog outputs, compatible with all • data acquisition systems

  10. misconceptions about inductive energy transfer • recharging causes an increase in tissue temperature • false: continuous temperature recordings remain stable whether charging is off or on

  11. misconceptions about inductive energy transfer • recharging influences physiological parameters • false: recordings show that blood pressure, heart rate, ecg morphology, and eeg power spectrum remain stable independent of charging status • repeated recharging has long term consequences • false: experiments of more than 130 days, performed to verify pressure sensor stability, • concurrently verified stability of all other physiological parameters

  12. sympathetic nerve activity (SNA) by telemetry • a challenging application • small signal amplitude (+/- 60µV) • high frequency • high sampling rate required

  13. sympathetic nerve activity (SNA) by telemetry • TR system provides • 8kHz sampling rate • integrated output with: • adjustable gain • adjustable integrator time constant • audio output

  14. sympathetic nerve activity (SNA) by telemetry • electrodes and placement of electrodes

  15. sympathetic nerve activity (SNA) by telemetry • sample SNA recording

  16. feature comparison

  17. website visit our websites for complete product descriptions, case studies, a knowledge base, & frequently asked questions: www.emka.fr

  18. contact us! please contact us to see how we can help you meet your implantable telemetry research goals!

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