Control of gaseous sterilization 机翻标题: 暂无翻译,请尝试点击翻译按钮。

公开号/公开日
US2003031589 A1 2003-02-13 [US20030031589] US7025932 B2 2006-04-11 [US7025932] / 2003-02-13 2006-04-11
申请号/申请日
2001US-10221457 / 2001-03-21
发明人
MARTIN ANTHONY; WATLING DAVID
申请人
BIOQUELL;UNIVERSITY OF WISCONSIN
主分类号
IPC分类号
A61L-002/06;A61L-002/20;A61L-002/24
摘要
(US7025932)
A method of sterilizing a sealable enclosure includes initially adjusting the relative humidity in the enclosure to a level substantially below ambient, circulating a carrier gas to the enclosure at a temperature raised above ambient and supplying a sterilant vapor or vapors to the circulating carrier gas sufficient to saturate substantially the gas. 
On cooling in the enclosure, a condensate of the sterilant vapor is formed on surfaces in the enclosure, which is measured whilst continuing to circulate the gas/vapor until a required amount of condensate has been formed on a the surface. 
Supply of sterilant vapor to the gas is terminated whilst circulating the saturated gas/vapor continues to maintain the condensate on the enclosure surfaces for a predetermined period of time. 
Finally the sterilant vapor is extracted from the chamber.
机翻摘要
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地址
代理人
代理机构
优先权号
2000GB-0006824 2000-03-21 2001WO-GB01254 2001-03-21
主权利要求
(US7025932)
The invention claimed is:
1. 
A method of sterilizing a sealable enclosure comprising: initially adjusting the relative humidity in the enclosure to a required level,circulating a carrier gas to the enclosure at a temperature raised above ambient,supplying a sterilant vapor or vapors to the circulating carrier gas,distributing the gas/vapor throughout the enclosure,continuing to circulate the gas/vapor through the enclosure until sterilization has been completed,terminating the supply of sterilant vapor to the gas while continuing to circulate the saturated gas/vapor to maintain the condensate on the enclosure surfaces for a predetermined period of time, andextracting the sterilant vapor from the chamber;
 sufficient sterilant vapor or vapors being added to the carrier gas to saturate substantially the gas whereby, on cooling in the enclosure, a condensate of the sterilant vapor is formed throughout the enclosure, measuring the amount of condensate formed on the surfaces of the enclosure and continuing to circulate the gas/vapor until a required amount of condensate has been formed on the enclosure surfaces.
2. A method as claimed in claim 1, wherein the relative humidity of the enclosure is adjusted to about thirty to forty percent.
3. A method as claimed in claim 1, wherein the sterilant vapor or vapors comprise hydrogen peroxide vapor and water vapor.
4. A method as claimed in claim 1, wherein after said predetermined period of time for circulating the saturated gas/vapor, the gas/vapor is circulated over a catalyst to cause breakdown of the sterilant vapor into its constituent parts and water vapor is removed from the circulating gas, the dry gas being circulated through the enclosure until all of the sterilant has been extracted from the enclosure.
5. A method as claimed in claim 2, wherein the sterilant vapor or vapors comprise hydrogen peroxide vapor and water vapor.
6. A method as claimed in claim 3, wherein after said predetermined period of time for circulating the saturated gas/vapor, the gas/vapor is circulated over a catalyst to cause breakdown of the sterilant vapor into its constituent parts and water vapor is removed from the circulating gas, the dry gas being circulated through the enclosure until all of the sterilant has been extracted from the enclosure.
7. A method of sterilizing a sealable enclosure comprising: adjusting the relative humidity in the enclosure to a required level;
 circulating a carrier gas to the enclosure at a temperature raised above ambient;supplying one or more sterilant vapors to the circulating carrier gas sufficient to substantially saturate the gas;allowing the enclosure to cool until a condensate of the sterilant vapor is formed on surfaces throughout the enclosure;measuring the amount of condensate formed on the surfaces of the enclosure and continuing to circulate the gas/vapor through the enclosure until a required amount of condensate has been formed on the enclosure surfaces;reducing or terminating the supply of stenlant vapor to the gas while continuing to circulate the saturated gas/vapor to maintain the condensate on the enclosure surfaces for a predetermined period of time;
 and 
  extracting the sterilant vapor from the chamber.
8. A method as claimed in claim 7, wherein the relative humidity of the enclosure is adjusted to about thirty to forty percent.
9. A method as claimed in claim 7, wherein the one or more sterilant vapors comprise hydrogen peroxide vapor and water vapor.
10. A method as claimed in claim 7, wherein after said predetermined period of time for circulating the saturated gas/vapor, the gas/vapor is circulated over a catalyst to cause breakdown of the one or more sterilant vapors into constituent parts and water vapor is removed from the circulating gas, the dry gas being circulated through the enclosure until all of the sterilant has been extracted from the enclosure.
11. A method as claimed in claim 8, wherein the one or more sterilant vapors comprise hydrogen peroxide vapor and water vapor.
12. A method as claimed in claim 9, wherein after said predetermined period of time for circulating the saturated gas/vapor, the gas/vapor is circulated over a catalyst to cause breakdown of the one or more sterilant vapors into constituent parts and water vapor is removed from the circulating gas, the dry gas being circulated through the enclosure until all of the stenlant has been extracted from the enclosure.
法律状态
(US7025932)
LEGAL DETAILS FOR US2003031589

Actual or expected expiration date=2018-05-07   
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Event publication date=2002-09-11 
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Application country=US US10221457 
Application date=2002-09-11 
Standardized application number=2001US-10221457 



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Primary Examiner: CONLEY, SEAN EVERETT



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A1 B2
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