If it is a kind of medical device, it can be compared with the patient's physiological value or the monitoring system, and can send out an alarm if it exceeds the known physiological value. The monitor must continuously monitor the patient's physiological parameters for 24 hours, detect the change trend, point out the critical situation, and provide the basis for the doctor's emergency treatment and treatment, so as to minimize the complications and achieve the purpose of alleviating and eliminating the disease. The purpose of the monitor is not only to measure and monitor physiological parameters, but also to monitor and deal with medication and conditions before and after operation.

With the steady growth of China's medical device market, medical monitors have developed from the monitoring of critically ill patients in the past to the monitoring of ordinary wards, and even grass-roots medical units and community medical units have put forward the demand for application.

In 2009, the penetration rate of medical monitors in China was only 20%. The penetration rate of medical monitors was positively correlated with the national living standard of a country. In 2009, China's per capita GDP was US $3678. From the compound growth rate of China's per capita GDP in the past 20 years, the annual compound growth rate of China's medical monitor penetration rate will be about 8.01% in the next five years. From the perspective of the long-term development of the industry, with the further improvement of the R & D level of the industry and the further improvement of China's medical security system, high-end products will gradually become the mainstream.

The monitor is different from the monitoring diagnostic instrument. It must continuously monitor the patient's physiological parameters for 24 hours, detect the change trend, point out the critical situation, and provide the basis for the doctor's emergency treatment and treatment, so as to minimize the complications and achieve the purpose of alleviating and eliminating the disease.

The purpose of the monitor is not only to measure and monitor physiological parameters, but also to monitor and deal with medication and conditions before and after operation.

The standard 6 parameters of the monitor are ECG, respiration, noninvasive blood pressure, blood oxygen saturation, pulse and body temperature. In addition, optional parameters include: invasive blood pressure, end of breath carbon dioxide, respiratory mechanics, anesthetic gas, cardiac output (invasive and non-invasive), bispectral index of EEG, etc.

Clinical application scope of the monitor: during operation, after operation, trauma nursing, coronary heart disease, critically ill patients, newborns, premature infants, hyperbaric oxygen chamber, delivery room, etc.