After connecting to the power supply, the suction device's motor drives the eccentric wheel, drawing air from the intake port of the liquid storage bottle and expelling it through the exhaust port, creating negative pressure in the bottle to extract sputum. The suction device is used to remove secretions and aspirated vomit from the respiratory tract through the oral cavity, nasal cavity, and artificial airway.
This equipment is suitable for use in emergency departments, operating rooms, wards, intensive care units, and as a standard medical device in various clinical departments. It is used for suctioning sputum, pus, blood, and other viscous fluids.