Routine catheterization will insert a catheter urethra spasm of pain in some patients, one-time low success rate of intubation problems, for which we explore ways of intubation and improve.

• 采用常规导尿插入尿管会出现部分患者尿道痉挛疼痛,一次性插管成功率低等问题,为此我们对插管方法进行探讨与改进。