Erbium laser dental therapeutic instrument handle capable of introducing water and gas

The invention relates to an erbium laser dental therapeutic instrument handle capable of introducing water and gas, which comprises a handle body, a rotating head, a water pipe, a laser pipe, an air pipe, an inner rod, a servo motor, an outer rod, a groove, an L-shaped fixing rod, a clamping block, a pressing block, a clamping groove, a clamping strip, a sleeve, a mounting shell, a through hole, afirst bearing, a spring, a vertical rod, a second bearing, a stop block and a fixing frame. The therapeutic instrument handle is reasonable in structural design, the servo motor is installed in the inner cavity of the inner rod and can drive the rotating head and the outer rod to rotate by a set angle to clean the oral cavity, the handle at the top of the outer rod facilitates medical staff to grab the handle in the treatment process, and the safety of dental treatment is improved; the therapeutic instrument handle is compact in structural design, the L-shaped fixing rod is installed at the tail end of the inner rod,