The BUMPY model incorporates an innovative design with distinct compression and expansion zones, allowing it to better adapt to ducts with anatomical variations or tortuosities. Its variable expansion segments generate more effective support in irregular areas and help reduce stent migration, even in hard-to-reach locations. It is ideal for patients with altered anatomy due to previous surgeries or tumors that cause changes in the bile duct course. Delivery is fluid and precise, with excellent radiological visibility. The BUMPY represents an advanced solution for cases where traditional models fail to achieve optimal anchorage.