University of Michigan

Daniel C Ursu

Paul S Cederna

Melanie G Urbanchek

Richard Brent Gillespie

Cynthia Anne Chestek

Nicholas B Langhals

Zachary Irwin

The present disclosure provides methods and systems for receiving, with processing circuitry of an implant device, an electrical signal from a free tissue graft attached to a portion of a nerve (e.g., a nerve branch or fascicle) through an electrical conductor in electrical communication with the free tissue graft (e.g., muscle graft), the nerve having reinnervated the free tissue graft. The electrical signal from the free tissue graft has a voltage amplitude of greater than or equal to about 150 microvolts. The processing circuitry stores signal data corresponding to the electrical signal from the free tissue graft in a memory accessible to the processing circuitry.

System for amplifying signals from individual nerve fascicles

Method for amplifying signals from individual nerve fascicles

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Ann Arbor, MI, United States of America

Daniel C Ursu