Please briefly describe the three stages of development of medical equipment maintenance

With the development of medical equipment technology tells, the formation of medical equipment, intelligent, large-scale integration and personalized special line of the main body of technology, these factors according to the top of the maintenance of medical equipment from the early stage of the first phase of the hospital self-maintenance, to the second stage of the dual combination of the hospital maintenance and manufacturers commissioned repair station maintenance, and then today's stage of diversified maintenance model, the development of the medical equipment maintenance industry overall The momentum is good.