No instrumental failure occured. Conclusion: C(S)DH circular stapler can be used safely and reliably in upper digestive tract surgery.

• 结论：通过与另外两种常用的国产吻合器进行比较 ,作者认为 C(S)DH型圆形吻合器在上消化道重建手术中操作方便，安全可靠。