When the new coronary virus is still raging, we should realize that healthcare workers are the last wall between the people and the virus, and to win this invisible war, protecting healthcare workers and preventing secondary cross-infection is the most important thing.
In this case, the negative-pressure ambulance has once again become the main bearer of safe isolation and transportation of patients with the new coronavirus.
Recently, the steam field asked the person in charge of the car company that produced the negative pressure ambulance for this epidemic, and learned that there is a huge difference between the negative pressure ambulance and the ordinary ambulance. On weekdays, most of the rescue tasks can be completed using ordinary ambulances, so the existing number of negative pressure ambulances is very small, after the outbreak of the epidemic, want to produce a large number of negative pressure ambulances in a short period of time need to break through the layers of difficulties.
Negative pressure cabin can effectively prevent the spread of the virus:
Negative pressure ambulance - that is, protective ambulance, it is the biggest difference between ordinary ambulances is that it can be "negative pressure isolation", mainly used for the safety of major infectious disease patient The most important difference between the ambulance and the ordinary ambulance is the negative pressure isolation.
In terms of structure, the negative pressure ambulance negative pressure cabin is equipped with a negative pressure generator, negative pressure generator work can make the car produce negative pressure below atmospheric pressure (relative pressure between -30pa to -20pa, the standard atmospheric pressure is 101.325kPa), so the negative pressure ambulance in the work of the outside air can only be inflowed through the negative pressure generator, and the car has been contaminated air needs to be sterilized, filtered and so on. The air inside the vehicle is already contaminated and needs to be sterilized, filtered and discharged to ensure that the virus is not allowed to spread freely.
Negative pressure cabin has good isolation, anticorrosion, ventilation, bacteria resistance and other characteristics, so it is used to transfer infectious patients both safe and hygienic.
All incoming and outgoing air in the negative-pressure chamber must be processed by a negative-pressure generator, so the negative-pressure chamber of the negative-pressure ambulance and the driver's cab are also completely sealed between the negative-pressure chamber of the negative-pressure ambulance, the negative-pressure chamber of the medical staff can only use the car radio telephone communication with the driver to communicate.
In the negative pressure ambulance cabin, the negative pressure generator can also control the direction of air flow in the vehicle, so that the air in the medical cabin forms a directional flow. If the patient is lying down posture, the medical staff is sitting and standing posture, negative pressure cabin air is generally from the front of the upper outflow, from the back of the lower part of the collection and processing shot, this flow can ensure that the medical staff has been in the middle of the clean air.
In addition, part of the negative pressure ambulance is also designed to isolate the warehouse, isolation warehouse is in the stretcher on the basis of increased sealing, negative pressure equipment, which also has a special air inlet and outlet design.
The isolation compartment is the second layer of protection outside the negative pressure compartment, mainly to prevent secondary contamination in the transfer of respiratory tract infected patients on the way.
It can be seen that the negative pressure ambulance is in the respiratory virus treatment of health care workers and to prevent the spread of airborne viruses, played a huge role.
Once in the SARS storm, due to the relative backwardness of medical equipment, still using ordinary ambulances to transfer patients. However, the space inside the car is narrow and poor ventilation, although the medical staff have protective equipment, but for a long time with the patient **** in a compartment, the risk of being infected is still very high, resulting in the later stage of a lot of health care workers were cross-infected.
In the face of this new coronavirus, we already have the ability to produce negative-pressure ambulances, but the number is still far from enough.
Compared with ordinary ambulances, the main difference between negative-pressure ambulances is that the compartments are highly sealed negative-pressure isolation compartments, and all incoming and outgoing air needs to be centrally processed, especially contaminated air, which will be "sucked" into the exhaust purification device for harmless treatment and then discharged, to avoid the transmission of disease through the air, so the negative-pressure ambulances can be used for the production of new coronary viruses. Disease transmission through the air, so negative pressure ambulance on the negative pressure generator, exhaust air purification device is the most important.
In addition, the negative pressure ambulance is also equipped with a respirator, defibrillator, cardiac monitor and a full set of rescue equipment, installed ultraviolet disinfection lamps, central oxygen supply interface, etc., so that trauma suture surgery and cardiopulmonary resuscitation and other salvation can be carried out in the ambulance, which is inconceivable in the ordinary ambulance.
Therefore, producing a negative-pressure ambulance is not only the work of a car company, but also requires a large amount of medical equipment, first-aid medicines and debugging setups for medical staff, etc., which makes it difficult to produce a large number of negative-pressure ambulances that can be put into use in a short period of time.
The SAIC Datsun staff responsible for the production of negative pressure ambulances said that the biggest difficulty in production is that the parts companies do not have inventory, and because of the New Year's reasons, the production line of employees to return to their hometowns, production capacity is reduced, resulting in a shortage of spare parts, if you put it on a normal day will be much easier.
In fact, the ambulance is divided into many types, according to the function can be roughly divided into pre-hospital type, transfer type, women and children emergency type, emergency rescue type, guardianship type emergency vehicle, and the use of negative pressure ambulance in the global scope are special "medical equipment", expensive, under normal circumstances rarely used, so whether it is The company's inventory is very limited," he said.
In addition to the lack of inventory of parts, it takes time for OEMs to produce, assemble, and test and verify.
Normal production of a negative-pressure ambulance goes through two steps: the production of the base vehicle (a basic type of armored vehicle that can be derived from a variety of different types and uses of the vehicle on the chassis), and modification. In accordance with the conventional steps, which base-type vehicle production generally takes 2 weeks, and negative pressure ambulance planning, need to go through the foam insulation treatment, wiring, interior installation, electrical, medical equipment installation, negative pressure facilities installation and other steps, on top of which also need to last 2 weeks, adding up to **** need more than a month.
Finally, from the scale of production, the domestic can be the first time within the production of negative pressure ambulance manufacturers are not many.
SAIC Datsun staff said that the outbreak of the epidemic, the Ministry of Industry and Information Technology the first time to map the production of negative pressure ambulance capacity of the car companies, the final tally of only 6 to 7, a period of 200 units of production tasks.
Time, due to the urgency of the epidemic, the car companies need to ensure the quality of the premise, to shorten the 30-day work period to 10 days, which is undoubtedly a huge challenge for each enterprise. However, a number of domestic companies have already accepted the challenge and risen to the occasion, such as SAIC Datsun.
On Jan. 24, the Ministry of Industry and Information Technology gave SAIC Datsun Automobile Co. the task of producing 60 negative-pressure ambulances, which was coordinated by the Shanghai Municipal Commission of Economy and Information Technology.
After receiving the task, SAIC Vice President Lan Qingsong immediately convened the company's vice presidents and department heads to hold an emergency teleconference, and decided to formally rework the first day of the Lunar New Year on Jan. 25, with more than a hundred, or more than 95 percent of the staff, returning to work on the second day of the Lunar New Year.
Shanghai Automobile Datsun Wuxi Shenlian Special Purpose Vehicle Co., Ltd. executive vice general manager Lv Zhiming said: "Negative pressure equipment over to the power distribution, fan piping links, the body of the car on the hole, the car needs to do some adaptive modifications, negative pressure to add an additional 2 to 3 days, the first batch of negative pressure device on February 3 to the, February 5 on time delivery. "
In addition to SAIC Datsun, at the same time, BAIC Foton received 25 negative pressure ambulance manufacturing task; Brilliance Group received 30 negative pressure ambulance manufacturing task; Yutong Group received 55 negative pressure ambulance manufacturing task; Jiangling Group received 18 negative pressure ambulance manufacturing task; Ningbo Keflex Specialty Vehicles Co. 10 negative pressure ambulance manufacturing tasks, etc.
Beiqi Foton emergency production of negative pressure ambulances
In addition to the production tasks arranged by the Ministry of Industry and Information Technology, some production capacity of the car companies in order to combat the epidemic, have also taken the initiative to help.
Fujian Benz has completed the basic modification of 20 negative pressure ambulances, which were sent to the infected areas overnight.
Fujian Benz new Vito negative pressure ambulance
Chirri Riviera applied for the production task of 20 sets of negative pressure ambulance, and is in the emergency production.
Chery Ruifu negative pressure ambulance
Nanjing Iveco delivered Iveco epidemic prevention and control vehicles in batches, used to help epidemic prevention and control work; Qingdao Suoer Automobile enterprise responsible person Wang Ning, Suoer Automobile existing parts can produce 50-60 sets of negative pressure ambulance, will be delivered one after another.
Finally, there may be some production of negative pressure ambulance enterprise editors did not check, but in the outbreak of the epidemic, can be in the first time to start the emergency plan of the car companies, is playing an active role in the process of epidemic prevention and control of the car companies, are worthy of our respect.
The automobile industry, in the face of the epidemic, is contributing its own strength. In the end, we hope that under the epidemic, everyone can protect themselves, which is also protecting others.
This article comes from the author of the automobile home car family number, does not represent the views of the automobile home position.