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Relying on scientific weapons and public wisdom, new technologies, products and applications are emerging
The golden idea turned into a new artifact, and "invented in Shanghai" flowers more than once to help fight the epidemic
February 26, 2020 may: focus source: Jiefang Daily
Recyclable mask: new nano materials are used to develop the filter performance for 200 hours. Liu Kun, a reporter of our newspaper, is there a recyclable mask for the need of blowout masks? Recently, a new mask with nano materials has been successfully developed in Shanghai, with the protection level reaching kn95 for civil use, "reusable" is its biggest highlight. The day before yesterday, the daily output of this mask has climbed to 100000. It will go on the market as soon as this week after being tested by relevant departments. In the production line of conventional masks, the masks are spit out from the machine one by one. The new masks that the reporter saw in the production workshop of Shanghai Juchen infant and child Clothing Co., Ltd. located in Fengxian District are more like sewing a small version of clothing. "This mask is completely produced on the original garment processing platform." The head of Jushen company, Bei Shiwei, introduced that the first sample of the export cover was cut by the automatic cutting machine, then transferred to the processing platform, and sewed by the workers using the sewing machine. The reason for such processing is the particularity of materials. The conventional disposable medical mask or N95 mask is made of melt blown non-woven fabric as the main material, and two layers of thick non-woven fabric are "welded" by ultrasonic technology. The protection principle is to use the electrostatic effect of melt blown non-woven fabric to catch fine dust and virus. But the protection function of this new mask is to use the filter material sandwiched in the middle of the mask, namely nanofiber microporous film. Its thickness is not more than 3 microns, but it has water-proof, air permeability and high initial filtration performance for particles, and it is environmentally friendly, corrosion-resistant and can withstand 130 ℃ steam. At the same time, the outer fabric of the new mask is made of all cotton, which is better than the non-woven fabric in air permeability, softness and comfort. It can be worn for a long time without feeling of damp discomfort. Wu Jincheng, director of the Municipal Economic and Information Commission, said Shanghai has been exploring innovative production of masks, especially promoting enterprises to develop new masks with new materials and technologies. At the beginning, when arranging the production capacity of the city's respirators and other epidemic prevention materials, the urban two-level economic and information departments received two applications at the same time: one was Juchen's production application, and the other was the raw material supply intention of Shanghai Hanpu new material company. The latter is the producer of nanofiber microporous film. During the SARS period in 2003, Juchen invented a "three in one" patented product of face isolation protective cover, which is composed of head cover, mask and protective glasses. "The main raw material of this protective cover is non-woven fabric. The initial appeal is to hope that the government can help enterprises coordinate non-woven fabric raw materials and start product production." However, raw materials for non-woven fabrics are scarce, said Bei Shiwei. The Municipal Economic and Information Commission has pointed out a new way for enterprises to cooperate with Hanpu to develop new reusable masks with new polymer materials. Nano microporous film, a new material developed by Hanpu, was granted a national patent last year. The material can block non oil and oil particles, and has a protective effect of more than 99% for droplets, dust, aerosols, bacteria, viruses, etc., and has the advantages of low respiratory resistance, which can be washed and reused. When the government issued a solicitation order, Hanpu submitted a request to "supply nano microporous film to mask and protective clothing enterprises through the government". On the afternoon of February 9, Juchen and Hanpu met at once under the guidance of the urban economic and information department. That night, the factory made the first sample overnight. After testing, novel coronavirus pneumonia has a filtration performance of over 95% of the diameter of 75 nanometer particles, while the diameter of the new crown pneumonia pathogen is about 100 nm. After 20 times of repeated disinfection treatment with boiling water, alcohol and 84 disinfectant, the filter performance of the mask remained basically stable. Under the condition of normal wearing and intact film, the filter performance can be maintained for 200 hours. However, enterprises suggest that the number of times of reuse should not exceed 10. Voice elevator: take the elevator without touching the button, voice report the floor to arrive automatically ■ our reporter Liu Kun "Hello, elevator, I want to go to the eighth floor." "Eighth floor, all right." Recently, the voice-controlled elevator network of Yichang Second People's hospital has become popular. The elevator can arrive at the destination automatically without pressing the button by hand. The reporter learned from the relevant departments that this special elevator with intelligent voice system was manufactured by Shanghai Attenborough elevator company. Since the outbreak, experts have said that the elevator button may infect the new coronavirus. Pan aosuo, senior engineer of edenberg elevator, talked about this problem in a video conference with Li Sui, chairman of the company. He suddenly remembered that he had developed a set of elevator voice control equipment several years ago, which has not been applied. "Isn't this the right time for voice control?" On the first day of the lunar new year, pan azuo, who was still in his hometown of Yancheng, rushed back to Shanghai, gathered more than 10 workers who still stuck to their posts, turned over the previous data, re verified and accelerated the development of voice controlled elevator system. In the past ten years of elevator manufacturing practice, pan Aso has completed more than 40 technical research and innovation projects alone. When he led the team to conquer the voice control system overnight, all the urgent tasks came at the same time. The repair project of Beijing Xiaotangshan Hospital and the expansion project of Yichang Second People's Hospital in Hubei Province all needed to install elevators. So pan ASO led the team to open the "two line operation" mode. When Attenborough told the news that the company was developing the elevator voice control equipment, the other side was very interested. On February 10, the voice control equipment was tested on the company's internal elevator. Later, it was transported to the second people's Hospital of Yichang city without stopping, and on February 22, it was officially on duty on the newly installed elevator. Then, Beijing Xiaotangshan Hospital also completed the installation of voice control equipment. Li Sui told reporters that at present, a number of hospitals and shopping malls in Shanghai have put forward the demand for additional equipment to Attenborough, and the company is preparing goods as soon as possible, which will be completed in the near future. In fact, this set of elevator voice control equipment can not only solve the problem of cross infection during the epidemic, but also solve the embarrassment that the buttons are blocked due to the crowded elevator, and the elevator passengers cannot easily access the buttons. At present, the cost of this set of voice control equipment is about 4000 yuan. With the mass production, it is expected to drop to about 1000 yuan in the future. "Ruijin Xiaobai" and two patents jointly enter the anti epidemic battlefield to improve the response efficiency of medical services and help the front-line medical staff to protect ■ what is the most important in the anti epidemic battlefield of our reporter Huang Yangzi? Protection. Only by protecting themselves can medical staff protect patients. In addition to the daily inspection and protection by the hospital staff, recently, the fourth batch of Ruijin Hospital Affiliated to Shanghai Jiaotong University Medical College supported the Wuhan medical team to use their brains. They not only used the latest IT technology, but also designed two "works" related to protection. The morning before yesterday, the two utility model patents were filed at the same time, namely, "a facial pressure protection component" and "a throat swab sampling protection device". At present, patent transformation has been started, and it is expected that the samples of two invention patents will be used in the first-line work of epidemic prevention in Wuhan this week. In these days, a special medical team member came to the 4-storey ward of E3 District of Optics Valley Hospital of Wuhan Tongji Hospital, i.e. an artificial intelligence medical robot integrating the latest IT technology, which can realize remote control ward round, 5g technology telemedicine and artificial intelligence hospital sense early warning. This robot named "Ruijin Xiaobai" is equipped with laser radar, infrared radar, 5g communication and robot cluster control technology. Through the artificial intelligence algorithm, we can find the potential safety hazards in the process of medical staff's activities in the infected area and wearing and taking off protective clothing, and timely remind them to reduce the risk of infection. This is a new generation of artificial intelligence robot with independent intellectual property rights jointly developed by Shanghai Jiaotong University Medical College and its affiliated Ruijin Hospital. Lin Jingsheng, the fourth batch of Ruijin medical team member and deputy director of discipline planning department, is one of the main inventors. He told reporters that "Ruijin Xiaobai" can become a substitute for doctors to enter dangerous areas, complete rounds, guidance, patient communication and other work. Doctors outside the isolation ward access the medical robot deployed in the ward through mobile app. "To a certain extent, it avoids the risk of infection caused by doctors wearing and taking off protective clothing and entering and leaving the isolation area for many times, and improves the response efficiency of medical services while saving medical resources." Through 5g communication technology and robot cluster control technology, experts of various disciplines in Shanghai can connect with robots at any time to realize multi-disciplinary remote consultation in multiple places and across hospital areas. In this way, novel coronavirus pneumonia in Shanghai and even the whole country can be quickly and conveniently concentrated in the new prevention and control of Wuhan's new crown pneumonia. Since the outbreak, many medical staff have taken photos of the wounded behind their masks, which is distressing. When doctors and nurses wear goggles, masks and other protective articles, they can achieve better sealing effect mainly by tightening the binding on goggles and masks. Because these protective articles and bandages are in direct contact with the face skin, it is easy to form deep scratches on the face of doctors and nurses, and some of them directly form pressure injuries, which also increases the risk of infection exposure. At the beginning, Ruijin medical team cut the existing dressings into the shape suitable for their own face and pasted them on the face to reduce the pressure injury caused by the protective articles. However, these dressings need to be cut by medical staff themselves, which are relatively poor in matching with goggles and masks. Moreover, they are time-consuming and laborious. When wearing the protective articles for a long time, they produce high local temperature, poor permeability and blood flow Problems such as unsmooth can not be solved. For this reason, Liu Qiong, head nurse of neurology department, put forward the idea of prefabricated form of hydrocolloid application, and Xiang Xiaogang, an infectious doctor, was just thinking about this problem. As early as October 2018, Ruijin clinical medical college established the University Student Innovation workshop, and Xiang Xiaogang was the founder. He immediately contacted the doctors Li Xiaoyang and Wang Jun in the Innovation workshop to discuss the feasibility of various schemes through video conference overnight, innovatively designed the application structure, and added ingredients that can protect the skin to the preformed shape of the hydrocolloid. Wang Jun drew the design drawings overnight, and built the patent together with Shanghai Xiaoxiang Intellectual Property Agency Co., Ltd. while Yancheng Jinwo Medical Technology Co., Ltd. worked overtime to make samples and sent them to Wuhan for testing by the medical team. Therefore, a kind of facial anti crush protection component was born, which is expected to be used by major medical teams and play a role in the future epidemic prevention work. At present, novel coronavirus pneumonia is needed for nucleic acid testing. The specimens are usually swabs. But nurses are very susceptible to infection during swallowing specimens from throat. Liang Xiaohong, a post-90s nurse in the emergency department, found that the patients needed to take off masks to cooperate with the medical staff when taking samples of throat swabs. In this process, there will be certain pharyngeal irritation, and patients are likely to cough, sneeze, vomit and other situations, which means that a large number of droplets carrying pathogens may be produced for transmission. For this reason, after discussing with her colleagues, she went through an Innovation workshop