This mesogun with hollow spherical grip belongs to orthopedic spinal surgery instruments, specially designed for channel positioning in UBE dual-channel minimally invasive spine surgery. The lightweight porous spherical handle fits the palm perfectly to prevent slipping and hand fatigue during long puncture procedures. The slender marked needle enables precise penetration depth control, acting as a core instrument for preoperative positioning and channel creation. Made of stainless steel, it can undergo repeated high-temperature sterilization.