Produced by Shenyang Institute of Automation, China Academy of Sciences, Dalian Institute of Chemistry and other famous research institutions, Shenyang Song Xin Medical Technology Co., Ltd., the first manufacturer of medical oxygen machine in China, has been committed to the research and development and manufacture of oxygen therapy and respiratory therapy equipment for a long time, and has taken the lead in obtaining the quasi-number registration certificate of medical devices in China and successfully developed the world's first real-time oxygen concentration and flow detection and digital display device, and obtained a number of patented technologies and software copyrights; Among them, 6 ranked first in the world and 4 ranked first in China. With its professional technology, stable quality and excellent performance, it has successfully entered the medical device market in more than 30 countries and regions around the world and is produced by very regular manufacturers.