This probe has a smaller ball and longer electrode length than P/N 3603-00.
The pedicle screw probe is a monopolar probe designed to aid in the placement of pedicle screws. It has a 2.3mm uninsulated ball on an insulated shaft.
The pedicle screw probe allows the surgeon to stimulate the pedicle hole where the pedicle wall is at its thinnest. This probe reduces the risk of screws accidentally hitting the nerve root.