1. Special umbrella structure design solves the traditional treat problem of esophagus stomach fistula.
2. Continued gentle radial tensile force effectively dilatesthe stenosis ,reducing patients ’discomfort.
3. The covered structure effectively avoids the tumor tissue ingrowth ,reducing the possibility of second stenosis.
4. Lasso in the near-end of the stent , easy to be recycled.
5. The stent is clear visibleunder image equipment. Positioning is more accurate.