This research includes solutions or strategies
for recording neural signals at a single pointselectively,
involving electrical and biomedical issues in relation to the
nature and electrical characteristics of the nerve at the
point of signal recording and neural channels. During this
process, by studying the field of operation of nerve
strands and their electrical behavior ofthem, the identity
of each signal be recorded by so-called cuff electrodes as
selectively as possible. The goal of current research is to
provide a practical solution using scientifically targeted
research based on world-class scientific methods for the
rehabilitation of people with neurological disorders,
people with disabilities and helping them to regain their
abilities and return to life as soon as possible with the
help of medical and electronics science. In this research,
we tried to design a kind of cuff electrode that has a
higher sensitivity, better signal detection capability, and
better overall performance than previous ones. In this
study, nerve environments were simulated in the Comsol
Multiphysics -5.2a and the available simulation data for
the design of the cuff electrode and the type of the
arrangement of the contacts and their placement were
applied, and then the signal analysis process and the
recorded signal differences in case of Flow and electric
flux were investigated and finally the results of the
approach were obtained. Based on the data provided by
the simulations and medical studies, it was concluded that
the electrical behavior of the nerve is completely different
from the simple conductors and the electrical current of
the nerve is not linear, is completely variable and
nonlinear, and follows the Fitzhugh-Nagumo model
under specific parameters. Then, by understanding the
above subject and forming the above relationship in the
ComSol software under specific parameters that are
specifically discussed in the thesis, the flow was
constructed like the actual flow of the nerve in the
simulation environment, and then, the type of
arrangement and the material of the contacts for
recording were analyzed The precise current flow was
examined and the proposed model of the thesis was
formed
Keywords :
Neural cuff electrode, Neural Problems, Neural impulse, Peripheral nerve, Nerve rehabilitation, Selective recording.
