Self-expanding metal esophageal stent (Double Antireflux)

The Double Anti-Reflux Stent is an advanced solution for the treatment of distal esophageal strictures or lesions near the gastroesophageal junction, where the risk of gastric reflux after stent placement is high. This model combines two key technologies: the double-layer structure (covered inner mesh + uncovered outer mesh) and a one-way silicone valve integrated into the distal end of the stent.

The double mesh provides a perfect balance between fixation and protection. The exposed outer mesh improves anchorage to the esophageal wall, while the covered inner mesh prevents tumor restenosis. This combination significantly reduces the risk of migration, even in difficult anatomical areas.

The built-in anti-reflux valve allows food to pass through but blocks acid reflux, significantly improving patients’ quality of life by reducing symptoms such as heartburn, regurgitation, and esophagitis. It is especially useful for patients with cancer or esophageal motility disorders, where reflux control is essential.

The Double Anti-Reflux is a smart, well-designed solution for clinicians seeking mechanical safety, physiological control, and reliable placement in patients with complex lesions near the cardia.