医院内获得的感染,约40%为尿路感染。医源性尿路感染的病人,75%在感染前使用过导尿器械,通常是导尿术。在一些医院中,由导管引起的泌尿道感染占住院病人的1%。此外,导尿病人还常被高抵抗力的微生物定居或感染,这些微生物又可传染给其他病人。因此,长期导尿是医源性感染的一个主要问题。 Infection in the hospital, about 40% of urinary tract infections. Seventy-five percent of patients with iatrogenic urinary tract infections have had catheterization before infection, usually catheterization. In some hospitals, catheter-induced urinary tract infections account for 1% of hospitalized patients. In addition, catheterisers are often colonized or infected by highly resistant microorganisms, which in turn can be transmitted to other patients. Therefore, long-term catheterization is a major problem of iatrogenic infection.