65438+ 10 On October 20th, the 10 negative pressure ambulance donated by China Red Cross Foundation arrived in Shijiazhuang.
Professor Zeng Mei, director of the Department of Infectious Diseases of the Pediatric Hospital affiliated to Fudan University, told the Health Times reporter that from the outside, negative pressure ambulances are no different from ordinary ambulances. However, as the name implies, the air pressure in the negative pressure ambulance is negative pressure. With the negative pressure equipment, the air pressure in the car is lower than the outside atmospheric pressure, and the air can only flow from the outside to the inside of the car when it flows freely. Moreover, there is a filtering system in the car to ensure that the air exhausted by the ambulance is not polluted by viruses. This can avoid cross-infection between doctors and patients and virus pollution to the external environment to the greatest extent. Therefore, negative pressure ambulance is mainly used for the safe isolation and transportation of patients with major infectious diseases.
Compared with ordinary ambulances, negative pressure ambulances also have a special compartment. This compartment is like a big capsule, which can wrap the patient inside. The isolation cabin is mainly suitable for the isolated transportation of toxic gas environment (such as gas bomb pollution) and suspected or diagnosed respiratory infectious diseases.
Special isolation cabin for negative pressure ambulance.
The isolation cabin adopts the principle of positive and negative pressure, which can effectively prevent toxic gases from entering the cabin under positive pressure and prevent polluted air from leaking under negative pressure. Moreover, there is also an efficient filter tank, which effectively filters toxic gases and ensures that the filtered gases are clean. There are several sealing covers on the engine room. When the sealing cover is opened, the medical staff can wear rubber gloves to operate and check and take medicine for the patient.
"If COVID-19 patients have symptoms such as cough, the isolation cabin in the negative pressure ambulance can prevent the droplets generated by the patient's cough from spreading the virus." Professor Zeng Mei, director of the Department of Infectious Diseases of the Pediatric Hospital affiliated to Fudan University, told the Health Times reporter, "According to China's Law on the Prevention and Control of Infectious Diseases, new pneumonia belongs to Class B infectious diseases, but prevention and control measures are taken for Class A infectious diseases. Therefore, as long as it is a COVID-19 patient, it must be arranged in a negative pressure ward, and a negative pressure ambulance is also needed for transshipment. "