Peripheral Nerve Interface, Epineural Electrode
Epineural electrodes are neural interface devices that are placed on or around peripheral nerves. They include one or more electrical contacts that can be used to stimulate or record action potentials from those nerves. These devices are not designed to penetrate through the perineurium and therefore tend to provide macroscale, rather than microscale, interfaces with the nerve. Because the perineurium remains intact and the electrode contacts are relatively large, the interface tends to be stable over time and less sensitive to micromotion and encapsulation than a microelectrode interface. The size and epineural nature of these electrodes often result in a lower degree of selectivity, both for stimulation and recording, than can be achieved via a penetrating microelectrode interface.
KeywordsDepression Platinum Rubber Encapsulation Polypyrrole
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