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公开(公告)号：US07090808B2
公开(公告)日：2006-08-15
申请号：US09901389
申请日：2001-07-09
申请人： Ross A. Caputo , Robert R. Reich, Jr. , Robert J. Thrash , Jimmy Fisher , Davoud Khorzad , Thomas F. Cullen
发明人： Ross A. Caputo , Robert R. Reich, Jr. , Robert J. Thrash , Jimmy Fisher , Davoud Khorzad , Thomas F. Cullen
CPC分类号： A61L2/208 , A61L2/28 , A61L2202/122 , A61L2202/14 , G01N21/3504
摘要： Apparatus and method for testing one or more sterilization indicators (e.g., biological indicators or chemical indicators) or other articles by contacting them under controlled sterilization conditions with a flowing antimicrobial gas containing hydrogen peroxide vapor are disclosed. This invention also provides apparatus and method for testing sterilization processes that use a flowing antimicrobial gas containing hydrogen peroxide vapor under controlled sterilization conditions, or for testing materials for such processes under controlled sterilization conditions, or for testing both such processes and such materials under controlled sterilization conditions. There can be an essentially square-wave contact of the sterilization indicators or other articles with the antimicrobial gas (i.e., short rise time to reach full concentration of the antimicrobial gas in contact with the sterilization indicators or other articles and short fall time to remove all of the antimicrobial gas from contact with the sterilization indicators or other articles). A preferred way of generating a substantially constant flow of antimicrobial gas of substantially constant hydrogen peroxide concentration may be used to generate the antimicrobial gas. A preferred way of determining the hydrogen peroxide concentration in the antimicrobial gas may be used.
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公开(公告)号：US06746652B2
公开(公告)日：2004-06-08
申请号：US09901337
申请日：2001-07-09
IPC分类号： A61L900
CPC分类号： A61L2/208 , A61L2/26 , A61L2202/11 , A61L2202/15 , B01D1/14 , B01D1/16
摘要： Apparatus and method for producing at high efficiency vaporization a precisely controllable, continuously adjustable gas-phase flow of a vaporizable liquid (e.g., hydrogen peroxide) in a carrier gas (e.g., air) are disclosed. The gas-phase product flow can be substantially continuous, low-temperature, unsaturated with respect to the vaporized vaporizable liquid, and of substantially constant vaporized vaporizable liquid concentration as a function of time. Fine particles of the vaporizable liquid are produced and introduced into the flow of carrier gas/vapor in a vaporization plenum with a sufficient flow of carrier gas/vapor to provide a curtain of carrier gas/vapor between substantially all of the fine particles of vaporizable liquid and the inner surface of the vaporization plenum.
摘要翻译： 公开了在载气（例如空气）中高效气化生产可气化液体（例如过氧化氢）的精确可控的，连续可调的气相流的装置和方法。 气相产物流可以基本上连续，低温，相对于蒸发的可蒸发液体是不饱和的，并且基本上恒定的蒸发的可汽化液体浓度随时间变化。 可蒸发液体的细颗粒被产生并且在具有足够的载气/蒸汽流量的蒸发气室中引入载气/蒸气流中，以在基本上所有的可蒸发液体的微粒之间提供载气/蒸汽的窗帘 和蒸发气室的内表面。
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公开(公告)号：US06794649B2
公开(公告)日：2004-09-21
申请号：US09901221
申请日：2001-07-09
IPC分类号： A61L208
CPC分类号： G01N21/3504
摘要： Methods are disclosed for determining the monotonic functional relationship between (A) the integrated absorbance of spectral energy within a spectral region of interest of an analyte (i) that decomposes during the time experimental spectral data for determining the relationship are being obtained, or (ii) whose spectral data are pressure sensitive at pressures below a given pressure, or (iii) that decomposes during the time the spectral data are being obtained and whose spectral data are pressure sensitive and (B) the concentration of the analyte before decomposition commences. Methods are also disclosed for using the monotonic functional relationship to determine the concentration of the analyte in an unknown from the integrated absorbance of spectral energy within the spectral region of interest for the unknown. The methods are useful for determining the concentration of gaseous analytes, such as hydrogen peroxide, whose concentrations must be accurately and rapidly determined in processes such as sterilization processes at the time the processes are being conducted.
摘要翻译： 公开了用于确定（A）在用于确定正在获得关系的实验光谱数据之间分解的分析物（i）感兴趣的光谱区域内的光谱能量的积分吸光度之间的单调函数关系的方法，或（ii ），其光谱数据在低于给定压力的压力下对压力敏感，或（iii）在获得光谱数据的时间内分解，其光谱数据是压敏的，（B）分解开始前分析物的浓度。 还公开了使用单调函数关系从未知光谱区域内的光谱能量的积分吸光度确定未知的分析物的浓度的方法。 这些方法可用于测定气体分析物的浓度，例如过氧化氢，其浓度必须在进行过程中的过程如灭菌过程中准确和快速地测定。
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