尿道结石绝大多数来自膀胱和肾结石,多发生在学龄儿童。结石容易停留在后尿道段,往往患儿因排尿疼痛或突然发生排尿困难而急诊就医。对尿道结石的处理到目前为止,一般医院均是先用金属探条(或金属导尿管)将结石推入膀胱内,再切开膀胱取石。这样既增加了患儿的痛苦,又加重病人的经济开支。就较大的前尿道结石而言,使用取石钳也往往因受尿道口径的限制,钳子张不开而不易取出,即使强行取出,亦容易造成尿道的损 The vast majority of urethral stones from the bladder and kidney stones, occurred in school-age children. Stones easily stay in the urethra, often due to urinary pain or sudden dysuria and emergency medical treatment. The treatment of urethral stones so far, the general hospital are first with a metal probe (or metal catheter) to push the stone into the bladder, and then cut the bladder stone. This will not only increase the child’s suffering, but also increase the patient’s financial costs. In terms of larger anterior urethral calculus, the use of stone clamp is often limited by the diameter of the urethra, pliers open and not easy to remove, even if forced to remove, but also easily lead to urethral damage