A stent is a small-scale tube, the doctor can insert into a blocked passageway to keep it widely open. The stent can replace the blood flow rate or other fluids passage levels, depending on where it is placed in the body parts. Stents are made of the metal or plastic material.
Stent springs are larger stents, they are used for larger arteries purposes. These types of stents are made up of a specialized fabric. Some types of stents are also coated with medication to help keep a blocked artery from closing.