Systems, devices, and methods for implanting target-specific multiple intrafascicular electrodes in peripheral nerves are provided to facilitate an implantation process that can reduce the difficulty of the implanting procedure and the time taken to implement the procedure. A longitudinal intrafascicular electrode implantation facilitator (LIFT) and a method for utilization of the LIFT for intrafascicular electrode implantation are provided. The LIFT can flatten the nerve to increase access to the number of fascicles available for implantation and supports the nerve during electrode implantation.