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Using Arrays of Microelectrodes Implanted in Residual Peripheral Nerves to Provide Dextrous Control of, and Modulated Sensory Feedback from, a Hand Prosthesis

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Technical Report,30 Sep 2014,29 Sep 2015

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Arizona State University Tempe United States

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The proposed research is focused on restoration of hand motor and sensory functions by utilizing a direct electrical interface with residual peripheral nerves. The direct connection with the residual nerves will enable the patient to have intuitive control over and receive touch sensation from a prosthetic hand that are not provided by current forearm prostheses. The improvement in intuitive control and the providing of sensory feedback will allow patients to use highly articulate prosthetic hands with improved long-term functional outcomes for military personnel and civilians with a forearm amputation. Based on preliminary studies in peripheral nerves it is possible to decode finger movements from electrophysiological signals recorded from peripheral nerves, and to evoke somatosensory perceptions through micro-stimulation of peripheral nerves. The proposed research will determine the type and complexity of movements that can be controlled by a direction connection to arm nerves, and will also determine the type and range touch sensations that can be provide through a direct connection to residual nerves.

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