Large-scale nucleic acid testing has been frequently launched in many places, and the training of nucleic acid testing personnel has been carried out to expand the team of nucleic acid testing personnel
Virtual simulation of "rubber man" makes nucleic acid testing more accurate and efficient
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The "respiratory secretion sampling training simulation system" developed by a national high-tech enterprise engaged in the research and development of virtual reality and simulation technology has been widely used in the training of nucleic acid testing personnel, which has improved the standardization and standardization level of nucleic acid detection work, and has unlimited and broad application prospects.
In the recent training of nucleic acid testing personnel organized by the Tianjin Heping District Health Management Service Center, a "rubber man" was particularly eye-catching in the training classroom: about half a meter high, with his eyes closed, his mouth slightly open, and he looked like a common anatomical model in medical schools.
The scientific name of this model is "respiratory secretion sampling training simulation system", and the product has been widely used in the training of nucleic acid testing personnel in Tianjin and has achieved good results. Tianjin Hanhai Nebulas Digital Technology Co., Ltd., which develops this system, is a national high-tech enterprise engaged in the research and development of virtual reality and simulation technology.
Recently, the outbreak of the epidemic in China has occurred in many places, and large-scale nucleic acid testing has been frequently launched in many parts of the country, which also means that a large number of nucleic acid testing work needs to be completed in a short period of time. In order to further strengthen the capacity building of nucleic acid testing, many places have carried out nucleic acid testing personnel training and expanded the team of nucleic acid testing personnel.
Gao Zhenyuan, founder and chairman of Hanhai Nebulas, said that virtual simulation technology can improve the standardization and standardization of nucleic acid testing for all employees, and has unlimited application prospects in the field of medical teaching.
Nucleic acid testing training faces challenges
In the prevention and control of the new crown pneumonia epidemic, nucleic acid testing is an extremely important part, and the first task of testing is sample collection. Nasopharyngeal swab collection may seem simple, but in practice, each step of the collection is detailed.
In 2020, Tianjin Medical College received a mission notice to train throat swab collection personnel for 16 districts in Tianjin. Lan Xiaoxia, head of the university's Department of Public Health and Health Service Management, is the leader of the training program.
Lan Xiaoxia said: "The sampling is not accurate, the subsequent work links will all be affected, missing a positive, the consequences will be very serious." However, for all trained healthcare workers to quickly grasp the essentials of throat swab collection, it is difficult to explain clearly with video demonstrations alone. ”
"We initially looked for a teaching model, but the human body size ratio of that model was not accurate, and the trainees often put their hands all in the mouth of the model when practicing, and it was very likely to contaminate the sample when actually operating." Lan Xiaoxia said.
Nasal swab collection training is more difficult. The nasal swab is collected in the nasopharynx, and the trainer can only reach the correct position by sending the swab vertically into the lower nasal passage and feeling the sensation of touching the wall.
Lan Xiaoxia said: "The language expression is still too abstract, in actual operation, if the position is not detected, it may cause false negatives, probe too deep and bleed, so we need a suitable intelligent teaching model in training." ”
Close to the real capture feel
Lan Xiaoxia finally found a suitable teaching model. This teaching model was jointly developed by Hanhai Nebulas and Nankai University School of Medicine, called "Respiratory Secretion Sampling Training Simulation System", including a collection terminal and an analysis terminal, and the collection terminal "Rubber Man" is equipped with sensors inside. When used, the collector can watch his or her own operation process on the display terminal.
"The collection terminal of this system and the anatomy of the real person can almost reach 1:1 restoration, and the user can get close to the real collection feel as close as possible." Jia Yanjiang, the person in charge of research and development of the system, told reporters that a variety of sensors are jointly applied within the model, which can accurately detect the location, strength, duration and other information of the swab, and combine the physical model with the computer online training platform to provide the operator with a full range of stereoscopic operation demonstration feedback such as graphics, text, sound, animation and so on.
The reporter learned that after each operation of the collection personnel is completed, the system will give a qualified or unqualified evaluation and indicate the specific reason. After the training is completed, the trainer can also conduct online assessment on this system, which greatly improves the assessment efficiency.
With the help of this system, Tianjin Medical College completed the training and assessment of 411 people in only 4 days from November 26 to 29, 2020.
It is worth mentioning that this system is even more indispensable in nasal swab collection training. With the help of this system, students can clearly see the direction of the swab inside the nasal cavity and grasp the essentials of nasal swab collection faster. At the same time, this high simulation system also effectively helped the trainees overcome the tension in the early stage of sampling.
The virtual simulation medicine market has broad prospects
In 2015, Gao Zhenyuan, who has been entrepreneurial for many years and has been focusing on virtual reality technology, received a project: the research and development of a virtual simulation teaching system for traditional Chinese medicine in Gansu Province. This made Gao Zhenyuan and his team the pioneers of the earliest testing of the medical simulation teaching system in China.
Gao Zhenyuan said that the company has been focusing on virtual reality and simulation technology research and development for a long time, and in early 2020, the company and the School of Medicine of Nankai University began to develop this simulation system. After 4 months, an ordinary "rubber man" was favored by the market with the blessing of high-tech elements such as sensors.
In November 2020, this simulation system entered the nucleic acid detection collection training classroom of Tianjin Medical College for the first time, which aroused great interest among the trainees, and the product took the first step in marketization. A medical staff member who participated in the training said that he had worried about missing the diagnosis of positive cases due to irregular operations, and with the help of this system, he could practice repeatedly and adjust his operating habits according to the feedback results, which is a process of practice.
At present, the Tianjin Municipal Health Commission and the health departments of Shanghai, Chongqing, Fujian, Shandong, Gansu and other places have contacted the procurement matters, and the sales volume of the product has reached more than 120 sets.
"The market prospects for virtual simulation medicine are very broad." Gao Zhenyuan values more than just the training of nucleic acid testing personnel.
In 2019, Hanhai Nebulas set up a special medical division to develop the application of simulation technology in medical teaching. Now, they have developed a "standardized patient system" that can communicate with people voice and help upcoming students "rehearse rehearsals", and the system has been applied in the actual teaching of colleges and universities.
"In the current epidemic prevention and control, we are considering product upgrades, and the future collection will become more intelligent because of the continuous application of virtual reality and simulation technology, and even realize automated collection, thereby greatly improving the efficiency and accuracy of collection and benefiting more people with new technologies." Gao Zhenyuan said. (Reporter Zhang Xi Correspondent Jia Hyatt)
Source: Workers Daily