目的延长气管的切除长度。方法采用犬的自体带肌血管蒂的肋骨，弯曲缝制成环状后，间置在气管两切端，代替部分切除的气管，获得成功。结果间置的肋骨环与气管吻合处组织愈合良好，管腔通畅，气管粘膜爬入并覆盖肋骨环内壁。结论可延长气管切除长度２．５～４．０ｃｍ左右，较人造气管有独到优点，为气管代用材料的研究提供一种新方法。 Objective To extend the resection length of the trachea. Methods The dogs with self-muscle stenosis rib ribs, curved ring made of seams, between the two tracheal ends, instead of partial resection of the trachea, to be successful. Results The intercostal rib ring and tracheal anastomosis tissue healing, lumen patency, tracheal mucosa climbed and covered the inner wall of the rib ring. Conclusions The length of tracheotomy can be prolonged by about 2.5-4.0cm, which is superior to that of man-made trachea and provides a new method for the study of tracheal substitute material.