Rainmed Medical Ltd. operates as a medical device company. It focuses on the designing, development and commercialization of coronary angiography-derived fractional flow reserve system and coronary angiography-derived index of microvascular resistance system. The firm's core products, caFFR System and caIMR System are medical devices used to evaluate the severity of myocardial ischemia arising from coronary artery stenosis and microvascular dysfunction, which are the underlying causes of coronary artery diseases. The company was founded by Yun Fei Huo in 2014 and is headquartered in Suzhou, China.