Ambulance negative pressure is to use technical means to make the air pressure in the car lower than the outside atmospheric pressure, so that the air can flow freely from the outside to the inside of the car, and the air in the car is discharged after harmless treatment to avoid more people being infected. In the treatment and transportation of infectious diseases and other special diseases, the probability of cross-infection among medical staff can be minimized.
The car is also equipped with a full set of rescue equipment such as ventilator, defibrillator, ECG monitor, ultraviolet disinfection lamp and central oxygen supply interface. In the future, debridement and suture surgery and cardiopulmonary resuscitation can be performed in ambulances, which is unimaginable for ordinary ambulances. Mainly used to rescue critically ill patients, infectious diseases and other special diseases.
Extended data:
Technical requirements According to the requirements of the Ministry of Health, the air exchange rate is 20 times per hour, the negative pressure value is between 10p a-38Pa, and the filtration separation rate reaches 99.9%. The negative pressure in the patient cabin of negative pressure ambulance refers to the relative pressure difference between the cabin and the outside atmosphere, which is mainly realized by the active exhaust of the exhaust fan to the outside atmosphere and the sealing treatment in the cabin. Before the air in the patient cabin is discharged into the atmosphere, it is generally filtered with high efficiency (99.97%@0.3um), which can effectively reduce the spread and pollution of pathogenic microorganisms to the environment outside the ambulance.
This method is just a physical isolation method. Bacteria and viruses are blocked on the surface of the high efficiency filter and cannot be killed. After the ambulance is used, the carriage should be disinfected.
Baidu encyclopedia-negative pressure ambulance.
(Photo/Text/Photo: Pacific Auto Network Q&A called Beast)