[Basic Knowledge of Devices for Nurses and Radiologic Technologists]

Endovascular treatment for cerebrovascular disease relies on close collaboration among physicians, nurses, and radiologic technologists. A basic understanding of devices is essential for safe and efficient procedures. This review summarizes key concepts of vascular access routes and commonly used devices from the perspective of nurses and technologists working in neuroangiography suites. First, we outline the selection of arterial and venous access, including transfemoral and transradial approaches, with attention to aortic arch variants, upper-extremity arterial anatomy, and patient factors that influence the puncture site and postprocedural care. Next, we describe the structure and roles of introducer sheaths, guiding and intermediate catheters, high-flow microcatheters, and rotating or push-type hemostatic valves, highlighting how coaxial and triaxial systems support device stability. Finally, we review hemostatic devices for access-site closure and practical aspects of contrast injectors, such as pressure limits, contrast dilution, and selection of contrast media to balance image quality with pain reduction and contrast load. The goal of organizing these foundational topics is to support team-based neuroendovascular practice and facilitate communication among all staff involved in these increasingly complex procedures.