The working principle of the medical suction regulator is relatively simple. Negative pressure is generated by a Bomba de vacío médica or other ways. La presión del gas atraerá el material fuera de la cabeza hacia el interior de la cabeza de succión para lograr el efecto de atracción.. El regulador de succión es ampliamente utilizado en el tratamiento médico. It is commonly used in surgical operations to remove blood or effusion, make the surgical vision clear, and reduce the chance of contamination. Clinically used for sucking sputum and wound exudates. And obstetrics and gynecology for artificial abortion and so on.

Whether the vacuum suction function is normal or not, and whether the negative pressure indicator measurement is accurate, is of great significance for clinical medicine. Regular inspection is very necessary. Since our country has not specifically issued a corresponding verification protocol for the medical suction regulator, the detection of the suction regulator can only be performed with reference to and combined with actual experience. The following items and parameters are mainly tested:

(1). How to check the suction regulator performance is good?

Check whether the suction connected to the catheter is correct, whether the suction force is normal. Adjust the negative pressure (40~53.3KPa) according to the patient’s condition and phlegm viscosity, test with isotonic saline to check if the catheter is open.

(2). What to do in case of resistance or difficulty to suck out phlegm when sucking? What should be paid attention to when sucking sputum for children?

If you encounter resistance, do not insert it with the strong force. When you are not able to suck it out, you can inhale a small amount of liquid medicine such as a-chymotrypsin and can knock back. Through a gentle vibration, to promote sputum suction, or use ultrasonic atomizing inhalation to make the phlegm thin and suck out.

(3). How to grasp the time of sucking?

When using vacuum regulator to sucking for the patient, the movement should be gentle, pull up from the deep, rotate left and right, and suck the phlegm. The time for each sucking should not exceed 15 seconds to avoid the lack of oxygen in the patient. In severe cases of hypoxia, oxygen should be given after sucking.

(4). What should you watch when you suck?

During the sucking process, observe the patient’s breathing changes before and after the sucking, observe the presence or absence of oxygen deficiency, observe the color, quantity, odor, nature, and viscosity of the sucked tincture, and observe whether the oral mucosa is damaged and the general condition of the patient.