
A Biliary Metal Stent is a self-expanding metallic tube inserted into the bile duct to relieve obstructions caused by tumors, strictures, or stones.
Key Features:
Self-expandable design: Automatically opens to maintain duct patency
Made of Nitinol or stainless steel: Flexible and durable
Radiopaque markers: Aid accurate placement under fluoroscopy
Available in covered or uncovered types:
Covered: Prevents tumor ingrowth
Uncovered: Allows bile duct side-branch drainage
Long-term patency: Better than plastic stents, ideal for malignant cases
Uses
Palliation of malignant biliary obstruction (e.g., cholangiocarcinoma, pancreatic cancer)
Treatment of benign biliary strictures (in selected cases)
Maintaining bile flow post-tumor compression or post-surgery