TherOx, Inc. (TherOx) is a privately-held medical device company engaged in the development and marketing of innovative therapies for the cardiovascular markets. The company developed the SuperOxygenation Therapy which is performed immediately after percutaneous coronary intervention (PCI) in acute myocardial infarction (AMI) patients. It provides cardiologists for addressing myocardial salvage intervention in heart attack patients. Its product portfolio includes The TherOx AO System, Disposables and The Downstream System. TherOx is headquartered in California, the US.