目的 对上消化道手术后瘢痕狭窄进行扩张,改善提高病人生活质量。方法 在内镜直视下用SY—哑铃型气囊导管食管扩张器对食管瘢痕狭窄进行扩张,扩张器直径为1.2cm～1.6cm。结果 扩张成功率高,除1例不是适应证外,其余14例扩张成功,成功率为100％,无并发症。结论 SY—哑铃型气囊导管扩张器扩张食管狭窄简便易行、安全可靠、费用低、易推广。 Objective To dilate scars after upper gastrointestinal surgery to improve the quality of life of patients. Methods Esophageal scar stenosis was expanded with SY-Dumbbell balloon catheter esophageal dilatation under direct endoscope. The dilator diameter was 1.2cm-1.6cm. Results The success rate of expansion was high. Except for 1 case, it was not an indication. The remaining 14 cases were successfully expanded and the success rate was 100% without complications. Conclusion The SY-dumbbell balloon dilator dilation of esophageal stricture is simple, safe, reliable, low cost, and easy to promote.