呼吸过滤器临床应用进展

呼吸过滤器（breathing filter，BF）也称生物过滤器、热湿交换过滤器、人工鼻等，是一人类在呼吸回路中使用的过滤器，具有不同程度的生物滤过功能和加温保湿作用。近年BF已逐渐在临床推广使用，是作为机械通气（mechanical ventilation，MV）期间保护气道、降低呼吸回路微生物污染、保护肺功能等的重要措施，也是避免交叉感染和控制院内感染的主要手段。

The advance of clinical application of breathing fllfer

Breathing filter （BF） also is known as bio-filter, heat and moisture exchange filter, artificial nose, etc. BF is used in breathing circuit in mechanical ventilation with different levels of biological filtration function and the role of heat insulation and moisture, in recent years BF has been gradually used in clinic as a protection of the airway during mechanical ventilation to lower respiratory circuit microbial contamination, as well as used in the clinical detection such as pulmonary function test ect. as one of the measures of control hospital infection to prevent crossinfection.