The respiratory oscillation sputum removal system of Runkai Medical has been selected for the procurement catalog of sputum removal machines at West China Hospital of Sichuan University based on its own advantages. The following figure shows the installation of sputum removal machines by Runkai Medical staff in the intensive care department of West China Hospital of Sichuan University, providing training on sputum removal machine operation for department personnel. The department operators are very satisfied with the sputum removal effect of the equipment.