Self-expanding biliary stent Wallflex

Wallflex Biliary Stent by Boston Scientific: An Innovative Solution for Biliary Stricture Treatment

The Wallflex Biliary Stent by Boston Scientific is an advanced medical device designed for the treatment of biliary strictures, whether malignant or benign. This self-expanding stent is available in fully covered, partially covered, and uncovered versions, providing flexibility to meet various clinical needs. Its innovative design and technical features make it a preferred choice for healthcare professionals seeking to improve outcomes for their patients.

The Wallflex Biliary Stent is particularly effective in treating malignant biliary strictures, where it is often used to palliate obstructions caused by tumors. Covered stents, in particular, are recommended for patients with pancreatic cancer, as they offer longer patency and reduce the risk of occlusion due to tumor ingrowth. Clinical data indicate that covered stents outperform uncovered stents in reducing reinterventions and improving patients' quality of life.

For benign strictures, the fully covered Wallflex Biliary Stent is also approved, providing a durable and effective solution. The Permalume covering technology used in these stents helps prevent tissue ingrowth, which is crucial for maintaining long-term patency.

One of the key advantages of the Wallflex Biliary Stent is its resistance to migration. The elongated and tapered stent ends are designed to reduce the risk of tissue trauma and migration, ensuring greater stability post-placement. Additionally, the closed-cell construction and covered options help prevent tissue ingrowth through the stent, minimizing complications.

Flexibility is another major advantage of the Wallflex Biliary Stent. The Platinol wire construction offers enhanced flexibility, facilitating placement in tortuous anatomies and helping to maintain luminal patency. This flexibility, combined with robust radial force, helps maintain stent patency and resist migration.

The delivery system of the Wallflex Biliary Stent is designed to provide exceptional placement accuracy and control. The deployment system allows up to 80% repositioning, aiding in precise stent adjustment. Additionally, fluoroscopic markers and a yellow transition zone assist in accurate placement under endoscopic visualization.

The Wallflex Biliary Stent is also designed to be removable, featuring an integrated retrieval loop that allows for stent removal during the initial placement procedure. This feature is particularly useful in treating benign strictures, where the stent can be removed up to 12 months after placement.

In summary, the Wallflex Biliary Stent by Boston Scientific is an innovative and effective solution for treating biliary strictures. With its advanced features, flexibility, and resistance to migration, it provides healthcare professionals with a valuable tool for improving clinical outcomes and patient quality of life.

• Availability: Fully covered, partially covered, uncovered
• Covering Material: Permalume
• Diameter: 8 mm, 10 mm
• Length: 40 mm to 120 mm
• Radial Force: Designed to maintain patency and resist migration
• Flexibility: Platinol wire construction for enhanced flexibility
• Delivery System: Allows up to 80% repositioning during deployment
• Fluoroscopic Markers: For precise placement under endoscopic visualization
• Integrated Retrieval Loop: For stent removal during the initial procedure