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Biliary Self-Expanding Metal Stent (SEMS)

A self-expanding metal stent woven from a single Nitinol wire, placed through the scope.

This page is intended for healthcare professionals.

Biliary Self-Expanding Metal Stent (SEMS)

Single-wire-design self-expanding metal stents (SEMS) made of Nitinol for relieving malignant strictures in the biliary tree.

In which cases?

Malignant biliary obstruction palliated in a patient who will not be operated on.
A stricture that needs to stay open longer than a plastic stent stays patent.
A duct already stented with plastic, where the stent is upgraded at the exchange.
A stricture where a partially covered stent is wanted because tumour ingrowth is expected.

What makes it different?

Nitinol expands at body temperature and holds a steady radial force on the stricture.
Woven from one wire, so there is no cut end sitting against the duct wall.
Tantalum radiopaque markers, so both stent ends are placed under fluoroscopy.
10 mm diameter in 40 to 100 mm lengths, uncovered or partially covered.

This product is not yet available for order in Türkiye. We can share the product documentation and the published studies.

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