Virtual reality system is a kind of computer virtual system, which can be created and expanded at will without external interference, and can provide realistic experience and cognitive feeling for operators. It has the technical characteristics of perception, immersion, interactivity and conceiving, which enables operators to interact with objects or objects in this virtual environment with the help of necessary equipment and tools, and then comprehensively obtain various spatial information and logical information contained in the virtual environment.
1. Research Status of Virtual Reality Technology in Medical Development
1. 1 Early development of virtual reality technology in medical research
As early as 1980s, American medical researchers first began to study virtual images of human body. They dissected the bodies of a man and a woman respectively, digitally scanned the anatomical parts, and compressed the obtained data, thus establishing the world's first "digital man". The operator can dissect the "digital person" at will on the computer monitor, and can partially enlarge the human image. In 1990s, the Institute of Medical Technology of the University of Hamburg in Europe created a 3D virtual human atlas for 3D visualization teaching research. Students can freely perform various operations in the three-dimensional human body space. 1999, "virtual frog anatomy" appeared on the network. Since the 20th century, with the rapid development of computer technology, virtual reality technology has been applied to the medical field.
1.2 application of virtual reality technology in medical research
Virtual reality technology has many practical applications in the medical field. At present, the widely used virtual systems mainly include: surgical virtual surgery simulation training, virtual internal medicine diagnosis, Chinese medicine massage, sports physiotherapy and rehabilitation, digital hospital medical simulation and teaching, etc.
2. Biomedical simulation application
2. 1 application of virtual reality technology in medical teaching
Virtual reality technology can carry out personalized medical diagnosis and treatment, and realistically expect different reactions of different treatment schemes to the human body. Compared with traditional subjective judgment, we can make scientific analysis and judgment on various diagnosis and treatment experiments of virtual human body according to the obtained treatment data and human reaction, and make more reasonable and real diagnosis and treatment plans. The virtual surgery simulation system can create a virtual surgery environment according to various medical image information and data, and establish a 3D model in the virtual environment to design the incision position and angle, and preview the surgery process, from which possible problems in the surgery process can be predicted in advance and remedial measures can be taken, thus improving the success rate of surgery. With this virtual system, doctors can make more reasonable surgical plans and methods, reduce all kinds of injuries and injuries caused by surgery, improve the accuracy of accurately judging the location of lesions, and have a good auxiliary judgment effect on various complicated internal medicine and surgical operations.
It is a huge burden for medical research institutions to invest expensive experimental objects and equipment. The establishment and application of virtual surgery system can not only greatly reduce the economic burden of medical research institutions, but also effectively shorten the surgical training time of researchers. The virtual surgery training system can provide an immersive virtual environment, and its realistic restoration effect can make the training process consistent with the real surgery, so that researchers can get the real feeling of the actual surgery on the spot.
In addition, in the teaching activities of medical colleges, because it is not limited by many factors such as specimens, venues, time, etc., virtual reality system can make teaching activities be carried out on demand at any time and place. To achieve good teaching results while reducing teaching costs. At present, some virtual reality systems specially developed for medical training, practice and research have a very high degree of simulation, and their advantages and effects are incomparable with traditional teaching activities.
2.2 Application of Virtual Reality Technology in Drug Research
Virtual reality technology can be used to study the micro-world in macro-drug research. By magnifying the chemical molecules in the microscopic world to the size that we can observe with naked eyes, scientists and technicians can visually and clearly see the whole process of chemical reactions of different drug formulations under different conditions, accelerate the drug research and development cycle conveniently and effectively, accurately analyze drug formulations, and improve the reliability of drug functions. For example, American medical researchers proposed to apply VR technology to the so-called "molecular insertion" research. The researchers of the project team are using this method to develop the synthesis of anticancer drugs.
2.3 Application of Virtual Reality Technology in Rehabilitation Medicine
Virtual reality system is also widely used in rehabilitation treatment, mainly in the following aspects: it has achieved good rehabilitation effects in the fields of attention deficit, spatial perception disorder and memory disorder. Virtual reality technology can simulate a variety of different treatment scenarios and set different stimulation treatment schemes, so that patients can carry out rehabilitation treatment in a safe and effective treatment environment.
3. Challenges faced by virtual reality technology
In the medical field, the research level of virtual reality and its related technologies is still in a low application stage at home and abroad. At present, the main difficulties are: there are no related evaluation standards for treatment and evaluation standards, and the interactivity and ease of use of the application system are not perfect. Virtual reality system equipment and its peripherals are unbalanced in cost performance, and the equipment is relatively expensive, which makes the time for large-scale application not mature enough.
4. The prospect of virtual reality technology in medical application.
The research content of virtual reality technology involves artificial intelligence, computer graphics, intelligent control, psychology and many other disciplines, and it is the product of the cross-integration of many related disciplines. However, we must rationally see that although virtual reality technology has broad application prospects and strong technical potential, it is still in the primary stage, and there are still quite a few theoretical problems and technical obstacles that have not been solved, which constitutes the current research and development direction. With the rapid development of science and technology, we will be able to overcome these difficulties in the near future and make virtual reality technology make greater contributions in the medical field.
However, virtual simulation software emerges one after another in the market. What kind of virtual simulation software should I choose? Through the visits to many medical colleges and universities, "Red Apple" software is the most suitable choice, with advanced technology and equipment, far exceeding its peers, and it is the best choice for experiments in modern medical colleges and universities. "Red Apple" software is a brand of Mao Heng Chuangyuan Technology Co., Ltd. Its main products include functional virtual simulation teaching experimental platform, ultra-high-definition microscopic virtual simulation teaching system, clinical thinking training system of integrated traditional Chinese and western medicine, three-dimensional human anatomy system, imaging diagnosis training system, nursing three-dimensional training system and so on, which basically covers all medical majors. This series of products has been widely used in more than 200 schools, responding to the "golden curriculum" created by the Ministry of Education in the new period.