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Related Experiment Video

Updated: Jun 22, 2026

Surgical Training for the Implantation of Neocortical Microelectrode Arrays Using a Formaldehyde-fixed Human Cadaver Model
08:11

Surgical Training for the Implantation of Neocortical Microelectrode Arrays Using a Formaldehyde-fixed Human Cadaver Model

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Active microelectronic neurosensor arrays for implantable brain communication interfaces.

Y-K Song1, D A Borton, S Park

  • 1Division of Engineering, Brown University, Providence, RI 02912, USA. yoon-kyu_song@brown.edu

IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society
|June 9, 2009
PubMed
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We developed a wireless implantable device for transmitting brain signals wirelessly. This neural recording system enables 16-channel broadband data acquisition in primates for advanced neural control.

Area of Science:

  • Neuroscience
  • Biomedical Engineering
  • Implantable Devices

Background:

  • Cortical microelectrode arrays are crucial for neural recording.
  • Wireless transmission of neural data is essential for advanced neural control applications.
  • Existing systems often face limitations in bandwidth, power consumption, or invasiveness.

Purpose of the Study:

  • To develop a wireless implantable microelectronic device for transcutaneous transmission of cortical signals.
  • To enable high-channel-count broadband neural recording for neural control.
  • To create a scalable and versatile microsystem for brain-computer interfaces.

Main Methods:

  • Designed a 16-channel implantable microsystem on a flexible polymer substrate.
  • Integrated ultra-low power amplification, analog multiplexing, analog-to-digital conversion, and digital control.

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Last Updated: Jun 22, 2026

Surgical Training for the Implantation of Neocortical Microelectrode Arrays Using a Formaldehyde-fixed Human Cadaver Model
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  • Utilized infrared telemetry for transcutaneous signal transmission.
  • Explored radio frequency and infrared light for power supply.

    • Main Results:

    • Achieved 16-channel broadband neural recording in a nonhuman primate brain.
    • Successfully transmitted digital neural data wirelessly through the skin via infrared light.
    • Demonstrated robust spike and broadband neural data acquisition over approximately one month of subchronic testing.
    • The system proved scalable and compatible with multiple power supply modalities.

    Conclusions:

    • The developed wireless implantable device offers a promising solution for high-fidelity neural recording.
    • This technology facilitates advanced neural control applications by enabling seamless brain-computer interfacing.
    • The microsystem's design offers scalability and flexibility for future advancements in neural prosthetics and research.