1993年3月至1996年12月用笔者改进的显微吻合技术对89例绝育男子进行输精管复通研究。术后全部对象随访12，复通率为1皿％；配偶宫内妊娠刀例，妊娠率为88．8％。技术改进的要点为4定点粘膜下进针全层缝合，然后间针浆肌层加强4针，这样吻合口对合严正，管腔内膜光滑，无损伤， March 1993 to December 1996 with the improved microsurgical technique of 89 cases of sterilized men vasectomy study. All patients were followed up for 12 years, the rate of 1% recovery of complex; spouses intrauterine pregnancy knife cases, the pregnancy rate was 88.8%. The key points of technical improvement were 4-point submucosal injection of full-thickness suture needle, and then between the four-needle acupuncture to strengthen the muscle layer, so anastomotic coincidence, the luminal smooth, no damage,