Realistic FEM Models for Electrode Design Optimization
Selectively stimulating different muscles innervated by the femoral nerve with a single, multicontact electrode
The long-term goal of our research is to restore
standing function via selective activation of target fascicles in
the femoral nerve by a flat interface nerve electrode (FINE).
The optimal number and location of contacts within a FINE
had not been determined previously. A realistic threedimensional
finite element model based on a cross section of
human femoral nerve and FINE is presented. Simulated
voltages are applied as an extracellular field to the MRG
double-cable axon model. Initial simulations indicate that
optimal contacts may exist for each fascicular group but an
acceptable selectivity may require nerve reshaping.
Ref: Matthew A. Schiefer, Ronald J. Trilo, and Dustin J. Tyler,
"Models of Selective Stimulation with a Flat Interface Nerve Electrode for Standing Neuroprosthetic Systems",
IEEE EMBS 2006 Annual Conference,
New York, Sept. 2006
|
