Neurosign® ball-tip stimulating probes are designed to stimulate nerves and/or aid in the safe placement of pedicle screws during a wide range of spinal or other surgical procedures. The probe allows the surgeon to stimulate the pedicle hole where the pedicle wall is at its thinnest. (Reduces the risk of screws accidentally hitting a nerve root.) Suitable for use with multi-channel nerve monitors. To be used in conjunction with a separate return needle electrode. Sterile, single patient use, individually packaged. Not for purchase by the general public.