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目的 介绍一种应用于治疗恶性肿瘤致气道狭窄的支架、推送方法， 并进行疗效观察。方法 应用自行研制与支气管镜相连的支架推送装置直接放置镍钛记忆合金支架，治疗恶性肿瘤致气道狭窄３１ 例。结果 ３１ 例均放置成功， 一次放置成功率９４％ ， 症状明显改善８４％ ， 改善不明显３％ 。结论 经纤支镜放置镍钛记忆合金网状支架安全、迅速、准确， 病人痛苦少， 放置前对患者进行综合评价， 有助于延长患者的生存时间和提高生活质量
Objective To introduce a stent and push method for the treatment of airway stenosis caused by malignant tumors, and to observe the curative effect. Methods Nitinol memory alloy stent was placed directly on the stent pushing device connected with bronchoscope to treat 31 cases of malignant airway stenosis. Results All the 31 cases were successfully placed. The success rate of one placement was 94%. The symptoms were significantly improved by 84% and the improvement was not obvious by 3%. Conclusion The placement of NiTi memory alloy mesh stent by fibrobronchoscope is safe, rapid, accurate and less painful to the patient. Comprehensive evaluation of the patient before placement will help to prolong the patient’s survival time and improve the quality of life.