The Niti-S Esophageal Stent intended for use in esophageal strictures caused by intrinsic and/or extrinsic malignant tumors. The Niti-S Esophageal Stent consists of an implantable metallic stent and a disposable, flexible introducer system for placement of the stent. The stent is a flexible, expandable tubular device woven from one or two continuous pieces of Nitinol wire to avoid sharp edges. At each end, the stent has a larger diameter resulting in a “dumbbell” shaped stent when viewed from an axial cross-section. The Niti-S Esophageal Stent is provided in three configurations: the Uncovered type, the Full Covered type and the Both Bare type. The Uncovered-type stent is available in two diameters (6, 8mm), and five lengths (60, 80, 100, 120, and 150mm). The Full Covered-type and the Both Bare-type stents are available in three diameters (6, 8, 10mm), and five lengths (60, 80, 100, 120, and 150mm). It has 10 radiopaque markers. This device also includes a disposable introducer. Upon deployment, the stent imparts an outward radial force on the luminal surface esophagus to establish patency. The introducer system consists of an Inner Catheter, Outer Sheath, Hub, Y-connector, Tip and Pusher. All of the components of the introducers are supplied sterile in a disposable package. The usable lengths of the introducer is 70cm. Other information: The shelf-life of Niti-S Esophageal Stent is 3 years.The package is sterilized using Ethylene oxide. The diameter of compatible guide wire is 0.038 inch (0.97mm). Do not use if package is damaged. Do not reuse or resterilize.
A non-bioabsorbable, expandable, tubular device intended to be implanted into the oesophagus to maintain luminal patency in strictures, prevent tumour in-growth, seal oesophageal fistulas, reduce acute bleeding from oesophageal varices, and/or to treat other lesions causing oesophageal leakage (e.g., anastomotic). It consists of a mesh structure made of metal which is covered/lined with a synthetic polymer material (e.g., silicone) that prevents lateral flow and tissue ingrowth and facilitates removability. It is typically expanded in situ (e.g., self-expands) and disposable devices intended to assist implantation may be included.
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