Clinical Study of Aerosol Transmission in Two Oxygen Humidifiers
- VernacularTitle:氧疗过程中气溶胶产生与输送的实验研究
- Author:
Hui HUANG
;
Rujun AN
;
Qifeng YI
;
Jiandang ZHOU
- Publication Type:Journal Article
- Keywords:
Oxygen therapy;
Humidification material;
Bubble humidifier;
Bionic humidifier;
Aerosol
- From:
Chinese Journal of Nosocomiology
2009;0(21):-
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE In order to find the way to reduce nosocomial pneumonia through preventing delivery of microbio-aerosol.we investigate whether oxygen humidification process generate and deliver aerosol to the end of oxygen tube,and the difference between two types of humidifier.METHODS Two types of humidifier were used.One was unique bionic humidifier through surface of humidification material,the other was conventional bubble humidifier.The amount of aerosol was counted by laser particle counter at the end of oxygen cannula.Different solute of ferric chloride and soluble starch in two humidification materials were used to testify the generation and transmission of aerosol during oxygen therapy.RESULTS Bubble humidifier produced large amount of aerosol of 0.3,0.5,1.0,3.0,5.0 ?m at 31089.9、28488.6、2873.9、197、1.1particle/cubic meter respectively.Most of the aerosol were between 0.3 and 3 microns in diameter.While bionic humidifier produced small amount of aerosol of 0.3,0.5,1 ?m at 95.3,39.8,2.0 particle/cubic meter respectively,there were no aerosol particle larger than 3?m.The difference of 0.3,0.5,1.0,3.0,5.0?m aerosol between bubble and bionic humidifier was significant(P
