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导言:医疗器械已成为医院的基本治疗组成部份,也是使美国850000病人/年遭受感染的来源。它创伤了表皮和粘膜损害了其保护作用,提供了细菌生长和栖身之所,阻抑了宿主防卫机制而把病原体感染给病人。医院器械源性感染从1965年起逐步有所增加,病原体主要为革兰氏阴性干菌,最常见的污染医疗器械为泌尿系统导管,静脉注射器械,血液和呼吸器治疗用具有关。前二者更是住院感染败血症的主要来源。为此进一步研究感染病因和预防是很有必要的。
Introduction: Medical devices have become an integral part of hospital care and are a source of infection in 850000 patients / year in the United States. It traumatized the epidermis and mucosa and damaged their protection, providing a place for bacterial growth and shelter, suppressing the host defense mechanism and infecting patients with pathogens. Hospital-acquired infections have gradually increased since 1965. The main pathogens are Gram-negative dry bacteria. The most common contaminated medical devices are related to urinary catheters, intravenous instruments, blood and respirator therapy appliances. The former two are the main source of hospitalized sepsis. To further investigate the etiology and prevention of infection is necessary.