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A GI stent (Gastrointestinal stent) is a medical device used to relieve narrowing or obstruction in the gastrointestinal tract, including the esophagus, stomach, and duodenum. It is typically inserted through an endoscopic procedure and functions by expanding the narrowed area to allow food and fluids to pass normally.

GI stents are commonly used to manage obstructions caused by conditions such as cancer, inflammation, or post-surgical strictures. For patients who are not suitable candidates for surgery, stent placement can provide a less invasive treatment option.

Most GI stents are designed as Self-Expandable Metal Stents (SEMS). During the procedure, the stent is inserted in a compressed form and then expands automatically once deployed inside the body, supporting the narrowed area and restoring the passageway.

Key characteristics of GI stents include:

• Expansion of narrowed gastrointestinal passages

• Minimally invasive placement via endoscopy

• Improvement of food passage and digestive function

• Enhancement of patient quality of life

With continuous advancements in stent design, materials, and coating technologies, modern GI stents offer improved durability, safety, and clinical performance. These innovations play an important role in enhancing treatment outcomes and patient care.