Neural Prostheses

Electrodes & Neural Interfacing

Development of a stable and reliable neural interface for an implantable neuroprosthesis system is a fundamental challenge for long-term applications. There are a number of electrode-nerve interafaces that have been reported in literature, but none have been shown to be able to selectively record from individual fascicles, while maintaining a stable, biocompatibile interface for several years.

Current methodologies for interfacing with peripheral nerve.
We will use various electrodes to improve recording fidelity and motor command decoding accuracy. We currently us a combination of research-grade intrafasicular electrodes (SMANIA) and custom neural cuff electrodes to record volitional electroneurograms (ENGs) from the median and ulnar nerves of non-human primates. Using our microfabrication facilities, we are also developing a number of novel microfabricated electrode designs aimed at improving specificity and stablity of long-term chronic implants for recording nerve signals.

Intrafascicular electrodes developed by SMANIA

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