Terumo. For more than 80 years, the name Terumo ® has been synonymous with innovative medical devices. From its start as a manufacturer of clinical thermometers, Terumo has grown worldwide to a position of leadership in such areas as hollow fiber technology, blood management systems, and the creation of new technologies in endovascular therapy. Terumo Interventional Systems (TIS), a strategic business unit of Terumo Medical Corporation, directly markets a full line of guidewires, catheters, introducer sheaths, guiding sheaths and embolization products for use in a multitude of interventional procedures. Interventional Radiologists, Interventional Neuroradiologists, Interventional Cardiologists and Vascular Surgeons are among the medical professionals that depend upon TIS products to access and cross difficult-to-reach lesions thereby allowing therapeutic intervention in previously unreachable vascular beds. Terumo has distinguished itself as a high quality manufacturer of medical products, operating four factories and 38 sales branches in Japan, as well as 31 other locations. The company generates annual sales surpassing $2.3 billion and employs 7,500 people worldwide.