Near-infrared spectroscopy technology can achieve non-invasive, real-time, continuous monitoring of tissue oxygenation parameters, providing a basis for clinical monitoring, treatment and evaluation, and is a hot spot for sustainable development in the field of biomedical optics applications.

In 1994, the research group led by Professor Ding Haishu of Tsinghua University School of Medicine undertook the research task of non-destructive monitoring of tissue blood oxygen content by near infrared spectroscopy.

The research team of the Department of Biomedical Engineering, Tsinghua Medical College, after long-term research and development, developed a high-tech product with all independent intellectual property rights (TSAH-100 near-infrared tissue blood oxygen parameter non-destructive monitor) 
Enginmed，which is the first and only original research technical team in the medical field of cerebral oxygenation in China, and the original research technical standards possessed among the world's leading ranks, let’s to be the third country that can produce such products after Japan and the United States.

Enginmed Medical obtained a number of national invention patents and utility model patent certificates, and successfully realized the transformation of scientific and technological achievements.

The product was launched in 2014, and the emergence of Enginmed Medical NIRS non-invasive monitoring has changed the existing clinical practice paradigm.  By giving clinicians such as anesthesia, ICU, neonates, and other clinicians more intuitive, the blood oxygen status of the tissue to be tested, the parameter index display makes diagnosis and treatment more three-dimensional and more accurate.  At the same time, NIRS technology has been successfully applied in many clinical fields, with more than 10,000 cases accumulated.

In recent years, more and more experts and scholars have recognized the significance of oxygen monitoring in clinical tissues, and have published expert consensus and guidelines in different fields.