One mind to fight the epidemic | War "epidemic" in the high-end hospital people

In the 2020 year of Gengzi, a sudden outbreak of novel coronavirus pneumonia broke the rhythm of life of the people of the whole country. This epidemic, like a boulder, smashed into our originally peaceful and orderly life. This Spring Festival is undoubtedly the most special one for all Chinese people. The Party Central Committee and governments at all levels attach great importance to it. All provinces and cities have successively launched the first-level response to major public health events, and use the strength of the whole country to help Wuhan. The people of the whole country are united and in the same boat!

Our respectable and lovely medical workers are fighting against the current, fighting on the front line of the epidemic and racing against time to save patients.In the respectable "retrograde", we also saw a group of unknown scientific researchers.In the face of the ravages of the epidemic, they have been struggling in the front line of scientific research since the second day of the Lunar New year, racing against time to step up the research and development process to provide safer medical equipment and technical support for medical staff fighting on the front line.They are the scientific research team of the high-end institute led by Wang Jiatao, president of the high-end institute, and Zhang Xiangjun, vice president of the high-end institute.

 

Researchers step up research and development

In the first time after the outbreak of the epidemic, Wang Jiadao, head of the Department of Mechanical Engineering of Tsinghua University and dean of the high-end hospital, organized and set up an emergency special team, forming a strong research and development lineup of Tsinghua University, the high-end hospital and Beijing Tsinghua Chang Gung Hospital. The research and development teams of the Institute of Intelligent Security Technology and Equipment of the High-end Institute (referred to as "Security Institute") and the Institute of Surface Interface Micro-nano Technology (referred to as "Surface Interface Institute") are inDevelopment of throat swab sampling robot for doctor-patient isolation, research and development of intelligent isolation and transfer warehouse for anti-virus infection, and continuous disinfection system for hospitals and other spacesAll R & D personnel are still fighting in the front line of scientific research to tackle key technical problems, and have achieved phased results.

This is a race against time, but also a battle of concerted efforts. According to Zhang Xiaohao, director of the Security Institute, and Du Chuan, executive deputy director of the Table Interface Institute, after the start of the work on the second day of the new year, more than 20 R & D personnel from the two teams were all in place. In this special period, it is not easy to accelerate the research and development process. In the absence of processing parties, suppliers, logistics outage and factories unable to resume work, our scientific researchers solve many difficulties through special methods of door-to-door pick-up, self-made equipment, 3D printing and self-production, and work overtime to promote the research and development process.Up to now, the design scheme of throat swab sampling robot and intelligent isolation and transfer warehouse has been completed, and the prototype is being debugged. Gaseous slow-release chlorine dioxide disinfection gel has been delivered to Tsinghua Chang gung hospital for field application testing.

 

Research and development in progress

In this race against the epidemic, medical staff are fighting fate and confronting death. How to race against time to provide medical staff with safer and smarter medical equipment and environmental protection is the biggest mission of scientific researchers. At present, severe patients with novel coronavirus pneumonia (SARI) are often accompanied by organ failure, among which acute myocardial infarction is one of the main diseases of death. Emergency coronary intervention is the most effective rescue treatment at present, and the proportion of transradial artery is the first choice for coronary intervention in China. However, there is no direct equipment at home and abroad that can perform emergency intervention for patients with major infectious diseases such as SARI complicated with myocardial infarction.This time, the movable negative pressure interventional operation isolation cabin developed by the special team can carry out rapid transport and clinical coronary intervention for SARI patients on the premise of ensuring the safety of medical staff and environment, and realize the safe treatment of doctor-patient isolation.After the development and commissioning of the equipment, animal experiments will be carried out and a series of environmental, infection and pollution assessments will be carried out to serve the new coronary pneumonia patients and medical staff as soon as possible.

 

Schematic diagram of throat swab sampling robot

 

Pharyngeal swab sampling robot

The pneumonia epidemic of the new coronavirus infection is still raging across the country, and among patients waiting for confirmation, viral nucleic acid testing is an important basis for confirming the diagnosis of new coronavirus pneumonia patients, and throat swab collection is the most important way to collect nucleic acid testing samples.Throat swab sampling robot can replace manual sampling, reduce the risk of cross infection of medical staff, reduce the workload and intensity of medical staff, and improve the accuracy of sample collection.High-end hospitals already have relevant mature technologies in the fields of grasping manipulators and minimally invasive surgical operation robots, which can quickly build robots and related systems that meet the requirements of throat swab collection. At present, the R & D personnel fighting in the front line are in the process of intense prototype debugging, and strive to deliver the equipment as soon as possible.

 

Researchers step up research and development

At the moment when protective products and disinfection product lines are completely out of stock online and offline, effective disinfection technology is an important means to block virus infection, and systematic disinfection technology in hospitals and other concentrated key places is particularly important. Most of the traditional disinfection techniques are sprayed or atomized, which has a good instantaneous disinfection effect, but it needs to be carried out frequently and cannot be effectively disinfected for a long time. Chlorine dioxide (ClO2) is an internationally recognized broad-spectrum and efficient green disinfectant, which has good disinfection effect at low concentration and is harmless to human.Based on the research on controllable chlorine dioxide gaseous slow-release technology, the surface interface research and development team uses organic gel as the chlorine dioxide slow-release reaction carrier, combined with real-time on-line detection of chlorine dioxide concentration, and through closed-loop control, can realize stable chlorine dioxide concentration in a certain area for a long time according to the disinfection requirements of different places, thus achieving the effect of long-term continuous disinfection and blocking virus infection.At present, the gaseous slow-release chlorine dioxide disinfection gel has been sent to the Tsinghua Chang Gung Hospital trial. In order to facilitate transportation and long-term storage, a special slow-release device designed for products in the separated state has also been designed, and mold manufacturing has begun, and large-scale production is expected by the end of February.

 

gaseous slow-release chlorine dioxide disinfection germicidal gel

 

　
Data detection of slow-release equipment

We have seen that the Wuhan Huoshenshan Hospital, which was completed and delivered in ten days, has once again shocked the world at the speed of China. Tens of millions of Chinese compatriots are contributing ideas and financial contributions to the fight against the epidemic. This is the Chinese spirit and Chinese strength!

Recently, Xi Jinping presided over a meeting of the Standing Committee of the Political Bureau to study the strengthening of epidemic prevention and control work. The meeting emphasized that the prevention and control of the epidemic must adhere to the national game of chess, increase scientific research efforts, and defeat the epidemic cannot be separated from scientific and technological support. All high-end hospital people will be in their respective positions, show technical advantages, race against time, and compete with the epidemic. We believe that as long as we work together and unite as one, we will surely win the battle against the epidemic.

And finally,

Pay tribute to all the desperate

To fight the health care workers on the front line,

Tribute to all who have fought the epidemic

Continuous scientific research personnel,

Tribute to all for the protection of people's lives

Quietly pay every Chinese!

Let's unite as one and overcome the difficulties together!

Come on, Wuhan! Come on, Hubei! Come on, China!

 

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Wen/Wang Xiaotu/Zhang Xiaohao, Guo Jinping, Sun Jie