Which design feature of the Synergy XD midshaft section increases flexibility?

• A. Extended bioslide coating; Extended hypotube;
• B. Increased lubricity; Enhanced pushability;

Answer: (B)

The design feature that increases flexibility in the midshaft section of the Synergy XD is increased lubricity. Increased lubricity refers to the property of materials to reduce friction, allowing for smoother movements. In the context of medical devices, especially those employed in complex anatomical areas, higher lubricity allows the device to navigate through tighter spaces and curves more easily. This reduced friction is crucial for maintaining control and flexibility during deployment and manipulation within the anatomy.

Enhanced pushability, while important for ensuring that the device can be effectively advanced through the vasculature, does not inherently contribute to flexibility. Instead, pushability typically relates to the structural properties of the device that allow it to be pushed through various tissues or pathways without kinking or experiencing resistance. Thus, while both increased lubricity and enhanced pushability are valuable features, it is the increased lubricity that distinctly enhances the flexibility of the midshaft section in this design.