What is balloon in catheter?

A balloon in a catheter is a specialized medical device used primarily in procedures like angioplasty. It consists of a flexible tube with a balloon at its tip that can be inflated to dilate a narrowed or blocked blood vessel, facilitating improved blood flow. Once the vessel is expanded, the balloon is deflated and removed, often leaving a stent in place to maintain the vessel's openness. This technique is commonly employed in the treatment of cardiovascular diseases.