What does negative pressure rescue mean (what does negative pressure rescue mean)

What does 120 negative pressure ambulance mean?

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 from the outside to the inside of the car under the condition of free flow, and the air in the car is discharged after harmless treatment to prevent more people from 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 requirement

According to the requirements of the Ministry of Health, the air exchange rate is 20 times per hour, the negative pressure value is between 10Pa-38Pa, and the filtration separation rate is 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's cabin is discharged into the atmosphere, it is generally filtered with high efficiency, which can effectively reduce the spread and pollution of pathogenic microorganisms to ambulances and the external environment.

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

What is a negative pressure vehicle?

Negative pressure vehicle refers to:

The biggest feature of negative pressure vehicle is negative pressure, which can minimize the probability of cross-infection when medical staff treat and transport special diseases such as infectious diseases. Negative pressure can also discharge the air in the vehicle after harmless treatment to avoid more people being infected.

The car is also equipped with a full set of rescue equipment such as ventilator, defibrillator and ECG monitor, and is equipped with ultraviolet disinfection lamp and central oxygen supply interface. In the future, debridement and suture surgery, cardiopulmonary resuscitation and other rescues can be carried out in ambulances, which is unimaginable for ordinary ambulances. Mainly used for the rescue of critical patients and infectious diseases and other special diseases.

Configuration:

1, negative pressure system

Negative pressure device module, ozone generator, medium efficiency filter, high efficiency filter, rear air conditioning guide device system, intelligent overload module.

2. Interior decoration and cabinet system

The cabinet of the negative pressure equipment is embedded in the left center of the medical cabin, and is made of polymer material by plastic suction molding, which has the characteristics of no odor, light weight and easy cleaning, and the inner corner is designed with rounded corners to avoid personal injury.

3. Warning and lighting system

Peripheral split embedded flash warning lights, front/rear support points, eye-catching decorative strips, rescue signs, internal lighting and external lighting.

Do you know "negative pressure ambulance"? What's the difference between negative pressure ambulance and ordinary ambulance?

The sudden epidemic has made masks, protective clothing and disinfectant become tight materials. In fact, not only these materials have become tight materials, but also "negative pressure ambulances". Everyone is familiar with ambulances, but few people know about "negative pressure ambulances". So what is a "negative pressure ambulance"? What is the difference between an ordinary ambulance and a "negative pressure ambulance"?

Compared with ordinary ambulances, "negative pressure ambulance" actually embodies "negative pressure". "Negative pressure ambulance" is higher than ordinary ambulance, but it is also produced on the basis of ordinary ambulance. "Negative pressure ambulance" is equivalent to adding an isolation device to the ordinary ambulance, which means that the car is completely isolated from the outside world, thus preventing patients with infectious diseases from spreading germs to the outside world.

The stretcher of "negative pressure ambulance" is equipped with a special air recovery port, which can extract all the gas exhaled by the patient, and then filter and disinfect it before getting out of the car, thus avoiding the spread of germs in the air. The so-called negative pressure, the air in the carriage will be lower than the air 10 to 30pa. Therefore, even if the air in the carriage is polluted by the patient, it will not leak from the car and will not cause air pollution.

In addition, the air conditioning system in the car is also different from ordinary ambulances, which is also the key part of negative pressure ambulances. The sterilization function of air conditioning filter has strict requirements. Not only will the car be equipped with ultraviolet disinfection lights, but the medical emergency equipment in the negative pressure ambulance is also quite complete, which is more complete than ordinary ambulances. Many operations can be performed in negative pressure ambulances, but ordinary ambulances can't meet such conditions.

Due to the sudden epidemic, negative pressure ambulances have also become relatively scarce materials. At present, many car companies have unconditionally donated negative pressure ambulances to hospitals around the country. For example, Chery Automobile urgently deployed its raft car to resume overtime work on the first day of the New Year's Day, and made a special negative pressure ambulance for patient rescue. At present, there are not many car companies that can produce negative pressure ambulances. Shanghai Datong and jiangling motors have received requests from relevant departments to produce negative pressure ambulances.

Negative pressure ambulance is suitable for transporting highly contagious patients, and some operations can also be carried out in negative pressure ambulance. Ordinary ambulances can't meet this requirement and standard. It is precisely because of the extremely high requirements that there are only a handful of automobile manufacturers, and because of the particularity of negative pressure ambulances, mass production cannot be carried out.

There is a great difference between an ordinary ambulance and a negative pressure ambulance. Negative-pressure ambulances are not common due to cost and use. Because of the particularity of the epidemic, negative pressure ambulances have entered people's sight. Car companies that can produce negative pressure ambulances are also fully producing, and some vehicles have been put into use, which shows that our car companies do not value interests, but only reflect the social responsibility of car companies at critical moments. If one more car is produced, the chance of cross-infection will be reduced, and the war without smoke will be won faster.

This article comes from car home, the author of the car manufacturer, and does not represent car home's position.

What's the difference between negative pressure ambulance and ordinary ambulance?

I. Different facilities

1. Negative pressure ambulance: The car is also equipped with a full set of rescue equipment such as ventilator, defibrillator and ECG monitor, and is equipped with ultraviolet disinfection lamp and central oxygen supply interface.

2. Ordinary ambulance: the car is also equipped with splints and brackets to fix the patient's severed limbs to avoid aggravating the injury of the patient's neck and spine. The car is also equipped with oxygen, portable ventilator and cardiac pacing defibrillator. Most ambulances also have patient monitors that can monitor the patient's pulse and breathing on the way to the emergency room.

Second, the characteristics are different.

1. Negative pressure ambulance: The so-called negative pressure means that the air pressure in the car is lower than the external atmospheric pressure by technical means, so that the air can only flow from the outside to the car under the condition of free flow. Negative pressure can also exhaust the air in the car after harmless treatment, so as to avoid more people being infected and minimize the probability of cross-infection when medical staff treat and transport special diseases such as infectious diseases.

2. Ordinary ambulance: Modern ambulances are relatively spacious, so that ambulance personnel have enough space to rescue patients on the way to the hospital. Modern ambulances also carry a large number of bandages and external products, which can help stop bleeding, clean wounds and prevent infection.

Extended data

technical requirement

According to the requirements of the Ministry of Health, the air exchange rate is 20 times per hour, the negative pressure value is between-10Pa and -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.

The air in the patient's cabin is generally filtered by a high-efficiency filter before being discharged into the atmosphere, which can effectively reduce the diffusion and pollution of microorganisms in the patient's body to the ambulance and the external environment. 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

Baidu encyclopedia-ambulance

What is a negative pressure ambulance?

What is a negative pressure ambulance?

Negative pressure ambulance, that is, protective ambulance, is different from ordinary ambulance in that it can be isolated by negative pressure, which is mainly used for the safe isolation and transportation of patients with major infectious diseases.

First of all, it has an independent space. In this space, it needs to complete the air exchange inside and outside the car, and it needs to be disinfected and filtered before it can be completed. This space is called negative pressure cabin, which has good isolation, corrosion resistance, ventilation and antibacterial properties, so it is safe and hygienic. It is most suitable for transporting infectious patients and can provide watertight protection.

Working principle of negative pressure ambulance

This is like, the clear water from the upstream flows to the downstream and passes through a pollution source in the middle. In order to ensure that the water flowing downstream is clean and pollution-free, it is necessary to install a disinfection and filtration device at the pollution source, which is equivalent to the negative pressure device in the negative pressure ambulance. It makes the air pressure inside the car lower than the air pressure outside the car, so that the air can only flow from the outside to the inside of the car, and the air inside the car is disinfected and discharged, so that a fixed air flow field area is formed in the negative pressure cabin. The air flows from the clean area to the infection source area, and the air pressure in the negative pressure cabin is between-10Pa~- 120Pa, so that the dead angle and vortex of the air flow are minimized.

In terms of air flow control in the car, clean air enters the car from above and is discharged from under the car, which can ensure that the air at the head of medical staff is as clean and sterile as possible, while the air where the patient lies is polluted. It is discharged to the outside of the car through the exhaust filtering device, and the air discharged to the outside of the car is filtered and is also clean and sterile air.

What is a negative pressure ambulance?

The so-called negative pressure means that the dust pressure is lower than the outside atmospheric pressure, so air can only flow from the outside to the inside of the car if it flows freely. The negative pressure filter device in front of the two people can also reduce the air in the car for purification and discharge, without polluting the surrounding environment, and can minimize the chance of cross-infection when medical staff treat and transport patients with special infections.

Negative pressure ambulance is equipped with negative pressure stretcher, ventilator, ECG monitor and ultraviolet disinfection lamp, as well as negative pressure purification system. After the polluted air in the sick room is filtered by high efficiency air, it is directly discharged from the bottom of the carriage by centrifugal fan, and a certain negative pressure value is established in the car relative to the outside of the carriage.