Conclusion The self produced Nickel-Titanium alligation stent reset instrument is safe and efficient in retrieving/resetting the displaced Nickel-Titanium alligation stent.

• 结论采用自行研制的上消化道镍钛合金支架取出器对移位的上消化道镍钛合金支架进行取出或重置是安全和有效的。