1. The unique design of conventional functions can be converted into suction functions, which greatly improves the actual needs of doctors in surgery.
2. Effectively adjust the suction pressure by controlling the negative pressure suction port.
3. The double-layer design of the sheath’s wall, the main cavity (water outlet) and the auxiliary cavity (water inlet) can continuously ensure the balance of intrarenal pressure, reduce the patient's water intoxication, and speed up surgical stone removal.