A novel coplanar X-ray guided method and aiming arm device for insertion of distal locking screws in intramedullary bone nails. The system includes a remote control configured to generate a spot signal in response to input from a user. Further, at this time, when a road is an upward slope, the control unit sets an engagement pressure of the frictional engagement element and an engine torque according to the road slope, prevents slide-down of the vehicle. During operation, the sleeve provides a seal between the patient contact part and the control valve of the suctioning device. The anvil member has a tissue contacting surface that includes a number of pockets arranged for substantially aligning with the retention slots.