What material is commonly used for ureteral stents?

Ureteral stents are typically made from plastic polymers, which offer several advantageous properties for this medical application. These polymer materials, such as polyurethane or silicone, provide flexibility and the ability to be manufactured in various sizes and designs to fit the needs of individual patients. The smooth surface of these polymers helps minimize friction during insertion and reduces the risk of encrustation or blockage over time.

Additionally, the biocompatibility of plastic polymers makes them suitable for long-term use within the body, as they help to prevent adverse reactions in surrounding tissues. These factors make plastic polymers the preferred choice for ureteral stenting procedures, allowing for effective and safe management of urinary obstruction or other urological conditions.

In contrast, metal alloys are generally not used for ureteral stents due to rigidity and potential complications related to biocompatibility. Silicone alone, while commonly used, is often blended with other substances to enhance its properties rather than serving as the sole material. Glass, being brittle, is unsuitable for ureteral stenting where flexibility and durability are essential. Thus, plastic polymers remain the standard material in this context.