Vascular stents are small, tube-like devices used to keep blood vessels open. They are often made of metal or plastic and are inserted into narrowed or blocked arteries to improve blood flow. This procedure is commonly performed during a treatment called angioplasty, where a balloon is used to expand the stent and restore proper circulation. These stents can help prevent serious health issues, such as heart attacks or strokes, by ensuring that blood can flow freely through the vascular system. After placement, stents can remain in the body permanently, providing ongoing support to the affected blood vessels.