Design and acute test of a radially penetrating interfascicular nerve electrode

Presented Is a new Intraneural electrode design capable of slowly placing electrodes between fasclcles of a nerve. The deslgn Is presented with prelimlnary resu l t s f rom acute s t lmula t lon experiments. The results demonstrate the ability o f the Radlally Penetratlng Interfascicular Nerve Electrode (RPINE) to fully penetrate the nerve within 24 hours without macroscopic damage or dlstort lon to the nerve. Stimulation results Indicates functlonal selectlvity with monopolar stlmulatlon. Combinatlons of monopoles generate v e c t o r addltlon of forces indlcatlng the ablllty to span moments space. The RPINE Is easy to fabricate, the implant procedure is simple, and the RPINE design Is sultable for chronlc Implant.