Microport Scientific Corp Microport Scientific Corp is an investment holding company mainly engaged in the sale, manufacture, research and development (R&D) of medical devices. The Company operates in eight segments. The Cardiovascular Devices Business segment includes implantable devices and access devices. The Orthopedics Devices Business segment includes reconstructive joints and spine products. The Cardiac Rhythm Management (CRM) Business segment includes pacemakers and defibrillators. The Endovascular and Peripheral Vascular Devices Business segment includes L-REBOA aortic occlusion balloons. The Neurovascular Devices Business segment includes cerebral atherosclerotic stenosis and coil products. The Structural Heart Disease Business segment includes Transcatheter Aortic Valve Implantation. The Surgical Robot Business segment includes the manufacture and R&D of surgical robot devices. The Surgical Devices Business segment includes the manufacture and R&D of surgical devices.