Introduction
Marker bands are essential components in various medical devices, particularly in minimally invasive procedures. These small, radiopaque markers are often made from materials like tantalum and 90Pt/10Ir (90% platinum and 10% iridium), which provide excellent visibility under imaging technologies such as X-rays. This article delves into the importance of marker bands, their materials, and their applications in the medical field.
What Are Marker Bands?
Marker bands are tiny rings or bands inserted into medical devices like catheters, guidewires, and stents. They are designed to be visible under imaging systems, allowing healthcare professionals to accurately position devices within the body. The most common materials used for marker bands are tantalum and 90Pt/10Ir due to their radiopacity and biocompatibility.
Why Tantalum and 90Pt/10Ir?
Tantalum is a highly radiopaque metal, making it ideal for marker bands. Its density ensures clear visibility under X-rays, while its biocompatibility makes it safe for medical use. Similarly, 90Pt/10Ir offers excellent radiopacity and durability, making it a preferred choice for high-precision medical devices.
Applications in Medical Use
Marker bands are widely used in cardiovascular procedures, such as angioplasty and stent placement. They are also used in capillary tubes for precise fluid delivery in diagnostic and therapeutic applications. Their ability to provide clear imaging guidance ensures safer and more effective medical procedures.
Conclusion
Marker bands play a critical role in modern medicine, enabling accurate device placement and improved patient outcomes. With materials like tantalum and 90Pt/10Ir, these small but mighty components continue to revolutionize medical imaging and device functionality.