What is the primary characteristic of cobalt chromium used in Abbott stents?

• A. High flexibility
• B. Increased radial strength
• C. Enhanced deliverability
• D. Compatibility with various imaging techniques

Answer: (B)

The primary characteristic of cobalt chromium used in Abbott stents is its increased radial strength. This material provides superior strength compared to other metals commonly used in stents, which is crucial for maintaining vessel patency and resisting thrombosis after implantation. The increased radial strength supports the stent's ability to withstand compressive forces within the arterial wall, ensuring it remains open during the healing process. Additionally, this property contributes to the stent's performance and durability, making it a preferred choice in the construction of vascular implants.

While other properties like flexibility, deliverability, and imaging compatibility are important in stent design, they do not define cobalt chromium as uniquely as its increased radial strength in this context.