Krüger, Thilo:
ISBN 9783899599602

Investigation of Electrodes as Bidirectional Human-Machine-Interface for Neuro-Technical Control of Prostheses. Biomedical Microtechnologies Vol. 1 # Pb., 260 S., Großformat (24 x 17), 103 Abb., 22 Tab.

SCHLAGWORTE:
Biomedizinische Technik
Neuroprothetik
Signalverarbeitung
Nervenelektrode

Neuroprostheses have found their place in the field of medically untreatable neuronal diseases and in neural rehabilitation to replace lost sensory or motor functions. Often available neuroprostheses provide only the possibility of a forward control without a feedback for the patient. The pursuit of this PhD is to establish a bidirectional link between man and machine. Electrodes are the main component of a neuro-interface and they are researched in their behavior and possible optimization. All necessary components of a bidirectional interface are identified as peripheral nerve, contacting electrodes, analog electric circuitry and digital processing units. A recorded neural signal reveals not all available information at once. For this purpose high sophisticated signal processing routines were used. An automatic signal processing chain, including electrodes, analog signal conditioning, and analog to digital conversion was established. Digital processing algorithms were optimized to recognize automatically different events in the afferent neural signals and discriminate them with high accuracy. The decoding of afferent neural signals is estimated as one last important missing link to establish a reliable neuro-interface. With sufficient afferent decoding working this thesis proved that a robust bidirectional interface to the peripheral nervous system is possible.

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