The radial artery access sheath is used to gain arterial access and facilitate the insertion of catheters or other equipment for diagnostic and vascular interventions. The radial sheath introducer is indicated for the introduction of angiographic catheters, closed end catheters, balloon catheters, and electrodes into a radial vessel where minimizing blood loss is essential.An introducer set contains devices used to access blood vessels for the insertion of vascular catheters. After a needle is inserted through the skin and into the blood vessel, the dilator and sheath are passed together into the blood vessel.