None of the patients required additional anesthesia to either vas deferens , the researchers say 研究者称：没有患者需要追加麻醉剂（双侧均不需要） 。
2.
Methods ： reanastomosis of the vas deferens by full thickness six - needle vas ligation suture without stents was carried out for 32 patients who had undergone bilateral vasligation 方法：对32例双侧输精管结扎术后需要再通患者，采用不用支撑物全层6针缝合法进行吻合。
3.
Vasectomy ( male sterilization surgery ) is a relatively simple surgery involving a cut and ligation of the sperm ducts ( vas deferens ) , thereby preventing the sperms from getting outside the body 输精管结扎手术是一项男士绝育手术，这手术把输精管的其中一段切断分开，从而阻止精子的输送。
4.
Methods of 14 normal male japanese white rabbits ( aged approximately 4 months ) , 7 ( randomly chosen ) were subjected to vasal ligation near the cauda epididymidis after exposure of the testis and vas deferens via a scrotal incision , and the other 7 subjected to vasectomy after exposure of the vas in the inguinal canal through a small ventral midline incision 方法正常雄性日本大耳白兔14只（约4月龄） ， 7只（随机选择）经阴囊切口暴露睾丸和输精管后靠近附睾尾进行输精管结扎，另7只从耻骨联合上方的腹正中线上作一小切口，暴露腹股沟管内的输精管后进行输精管结扎。
