自１９９４年１月，我们采用球囊扩张预防肛门直肠术后狭窄的发生。本组共６２例，男３４例，女２８例，年龄最小２个月，最大１０岁，平均２．９岁。患儿的病种及术式见表１。根据治疗需要设计制作大、中、小号三种规格的球囊，囊壁由乳胶膜构成，充气或水后最大直径３．０ｃ Since January 1994, we have used balloon dilation to prevent the occurrence of stenosis after anorectal surgery. The group of 62 cases, 34 males and 28 females, the youngest 2 months, up to 10 years old, with an average of 2.9 years old. Children’s disease and surgical procedures in Table 1. According to the treatment needs of the design and manufacture of large, medium and small size three kinds of balloons, wall composed of latex film, inflatable or water maximum diameter of 3.0c