Real-time monitor and control system and method for hydrogen peroxide vapor decontamination

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5872359
SERIAL NO

08508314

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The invention includes a system and a method for maintaining a selected concentration of a sterilant vapor during vapor phase sterilization. The system includes a sterilization chamber with a source of multicomponent vapor containing a sterilant vapor, an electromagnetic radiation source capable of generating radiation at a plurality of wavelengths, a radiation detector for detecting and quantitating the electromagnetic radiation absorbed at the wavelengths, the detector generating absorbance signals proportional to the concentration of the sterilant vapor in the multicomponent vapor, a microprocessor programmed to compare the absorbance signals with reference absorbance signals, to calculate the sterilant vapor concentration therefrom and to generate an output signal, and a controller to receive the output signal and to control addition of the sterilant vapor to the sterilization chamber to maintain a selected concentration of the sterilant vapor in the sterilization chamber during the sterilization process. The method allows sterilization conditions to be optimized to reduce the time required for and to increase the sterilization efficacy of the sterilization procedure.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
AMERICAN STERILIZER COMPANYMENTOR, OH245

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sparber, George Broadway, NC 1 39
Stewart, Bonnie Durham, NC 2 90
Zell, Peter Raleigh, NC 2 111

Cited Art Landscape

Patent Info (Count) # Cites Year
 
AMERICAN STERILIZER COMPANY (6)
* 4843867 System for monitoring sterilant vapor concentration 47 1987
* 4956145 Optimum hydrogen peroxide vapor sterilization method 99 1987
* RE33007 Method of vaporizing multicomponent liquids 21 1988
* 4909999 Flow-through vapor phase sterilization system 69 1989
* 5173258 Recirculation, vapor and humidity control in a sealable enclosure 59 1989
* 5139957 Chemical indicator that includes potassium dichromate and urea and method of using the same to detect hydrogen peroxide 26 1990
 
Other [Check patent profile for assignment information] (1)
* 5081045 Chemical concentration pressure analyzing apparatus and process 13 1990
 
OZONE STERILIZATION PRODUCTS, INC. (1)
* 5167927 Monitor for ozone, hydrogen peroxide and other gases in fluids 20 1989
 
H. Maihak AG (1)
* 4641973 Method and apparatus for measurement of the concentration of a component of a mixture 21 1982
 
DETECTOR ELECTRONICS CORPORATION (1)
* 5475222 Ruggedized gas detector 9 1994
 
ENVIROTEST SYSTEMS HOLDINGS CORP. (1)
* 5418366 IR-based nitric oxide sensor having water vapor compensation 56 1994
 
Interox Chemicals Limited (1)
* 4680271 Process and apparatus for analysis 13 1985
 
FIAtron-Eppendorf, Inc. (1)
* 5139956 Method and system for determining peroxide content 11 1991
 
TEIJIN LIMITED (1)
* 5445792 Optimum hydrogen peroxide vapor sterlization method 87 1994
 
Hochiki Kabushiki Kaisha (1)
* 4661320 Gas sensor 41 1984
 
GAS RESEARCH INSTITUTE (1)
* 5055690 Method of eliminating water vapor interference in detecting gases 8 1989
 
SECRETARY OF STATE FOR TRADE AND INDUSTRY OF HER MAJESTY'S BRITANNIC GOVERNMENT, THE (1)
* 5339155 Optical wavelength modulated long-path gas monitoring apparatus 15 1993
 
Gaztech Corporation (1)
* 5384640 Gas sample chamber for use with a source of coherent radiation 17 1993
 
OPTICAL FILTER CORPORATION, A CORP. OF NH. (1)
* 4323777 Hydrocarbon gas analyzer 31 1980
 
NIHON KOHDEN CORPORATION (1)
* 4998018 Two-wavelength type respiratory gas concentration measuring apparatus 31 1990
 
KYOWA MEDEX CO., LTD. (1)
* 4916058 Method and test composition for determination of hydrogen peroxide 6 1987
 
GUIDED WAVE, INC. (3)
* 4664522 Optical waveguide spectrum analyzer and method 25 1984
* 4786171 Spectral analysis apparatus and method 41 1986
* 5184193 Dual fiber optic spectrophotometer 8 1989
 
UOP LLC (1)
* 5600142 Measurement of vaporized hydrogen peroxide 50 1995
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
EP TECHNOLOGIES LLC (1)
* 9662412 Plasma vapor chamber and antimicrobial applications thereof 0 2016
 
AMERICAN STERILIZER COMPANY (33)
7157046 High capacity flash vapor generation systems 9 2002
* 2002/0114,727 High capacity flash vapor generation systems 9 2002
7186374 Vapor phase decontamination of containers 27 2002
7803315 Decontamination of surfaces contaminated with prion-infected material with gaseous oxidizing agents 7 2002
6936434 Vapor phase decontamination process biological indicator evaluator resistomer (BIER) vessel 18 2002
6875399 Non-dispersive mid-infrared sensor for vaporized hydrogen peroxide 17 2002
7157045 Infrared monitor and control for vapor hydrogen peroxide processing techniques 4 2002
* 2003/0021,724 Infrared monitor and control for vapor hydrogen peroxide processing techniques 2 2002
7129080 Vitro model of priocidal activity 2 2002
* 2003/0148,385 Vitro model for priocidal activity 0 2002
7071152 Cleaning and decontamination formula for surfaces contaminated with prion-infected material 2 2003
* 2006/0105,930 CLEANING AND DECONTAMINATION FORMULA FOR SURFACES CONTAMINATED WITH PRION-INFECTED MATERIAL 0 2003
* 2005/0084,415 High capacity flash vapor generation systems 16 2004
7217685 Cleaning and decontamination formula for surfaces contaminated with prion-infected material 6 2006
* 2007/0037,723 Cleaning and decontamination formula for surfaces contaminated with prion-infected material 4 2006
7550122 Decontamination system with air bypass 2 2006
* 2008/0279,719 DECONTAMINATION SYSTEM WITH AIR BYPASS 0 2006
7700056 Modular decontamination system 2 2006
* 2008/0038,166 MODULAR DECONTAMINATION SYSTEM 6 2006
7393818 Cleaning and decontamination formula for surfaces contaminated with prion-infected material 8 2007
* 2007/0289,614 Cleaning and decontamination formula for surfaces contaminated with prion-infected material 4 2007
7919059 Vaporized hydrogen peroxide decontamination system with concentration adjustment mode 2 2007
* 7640782 Vaporized hydrogen peroxide probe calibration rig 3 2007
* 2008/0267,818 VAPORIZED HYDROGEN PEROXIDE DECONTAMINATION SYSTEM WITH CONCENTRATION ADJUSTMENT MODE 7 2007
* 7850925 Apparatus for removal of vaporized hydrogen peroxide from a region 6 2007
* 2008/0310,997 METHOD AND APPARATUS FOR REMOVAL OF VAPORIZED HYDROGEN PEROXIDE FROM A REGION 4 2007
8007717 Method and apparatus for decontaminating a region without dehumidification 3 2007
* 2009/0047,174 METHOD AND APPARATUS FOR DECONTAMINATING A REGION WITHOUT DEHUMIDIFICATION 3 2007
8357331 Feed back and dose control of distributed decontamination systems 6 2009
7988911 Method for removal of vaporized hydrogen peroxide from a region 6 2010
7988920 Device for aerating a region after injection with vaporized hydrogen peroxide 6 2010
* 2011/0052,449 DEVICE FOR AERATING A REGION AFTER INJECTION WITH VAPORIZED HYDROGEN PEROXIDE 6 2010
* 2011/0044,851 METHOD FOR REMOVAL OF VAPORIZED HYDROGEN PEROXIDE FROM A REGION 6 2010
 
Other [Check patent profile for assignment information] (5)
* 8205416 Method and device for producing and filling containers 0 2004
* 2008/0163,562 Gutter cleaning system with an independent water supply 4 2007
* 8236240 Method and system for conducting vapor phase decontamination of sealable entities and their contents 7 2007
* 2007/0274,858 Method and system for conducting vapor phase decontamination of sealable entities and their contents 17 2007
* 2008/0279,736 Method and apparatus for low energy vaporization of liquid oxidizing agents or solutions 1 2008
 
AXCELIS TECHNOLOGIES, INC. (2)
* 6107634 Decaborane vaporizer 31 1998
* 2003/0030,010 Decaborane vaporizer having improved vapor flow 13 2001
 
PANASONIC CORPORATION (1)
7973924 Target substance sensor and method thereof using a photonic crystal 1 2005
 
ABBOTT LABORATORIES (1)
* 6318151 Self-contained sterilant monitoring assembly and method of using same 10 1999
 
JBT NETHERLANDS B.V. (3)
9241510 Apparatus and method for optimizing and controlling food processing system performance 0 2012
8893518 Accelerating, optimizing and controlling product cooling in food processing systems 0 2012
9131729 Safe and efficient thermal transfer media for processing of food and drink products 0 2012
 
Sterilucent, Inc. (1)
8230616 Apparatus and method for drying and sterilizing objects in a load 0 2009
 
HITACHI, LTD. (1)
* 2003/0095,062 VEHICLE-ONBOARD SIGNAL PROCESSING DEVICE AND VEHICLE-ONBOARD RADAR SYSTEM 1 2002
 
ETHICON, INC. (9)
* 2002/0122,744 Apparatus and method for monitoring of oxidative gas or vapor 6 2001
* 2002/0081,228 Monitoring sterilant concentration in diffusion-restricted regions as a basis for parametric release 13 2001
* 2003/0063,997 Monitoring sterilant concentration in a sterilization process 26 2002
7807100 Sterilization system and method with temperature-controlled condensing surface 9 2003
* 2005/0025,666 Sterilization system and method with temperature-controlled condensing surface 2 2003
7452504 Sterilization/disinfection cycle control 6 2004
* 2005/0265,889 Sterilization/disinfection cycle control 2 2004
7575716 Sterilization/disinfection cycle control 0 2008
8658092 Sterilization system and method and orifice inlet control apparatus therefor 0 2013
 
ABBOTT LABORATORIES (1)
6532794 Self-contained sterilant monitoring assembly and method of using same 1 2001
 
Steris LLC (1)
7901618 Integrated control and distribution system for the decontamination of large volume convoluted configuration spaces 0 2005
 
HUMAN MEDITEK CO., LTD. (2)
* 7824610 Plasma treatment module-equipped sterilization apparatus and sterilization method 0 2003
* 2004/0120,869 Plasma treatment module-equipped sterilization apparatus and sterilization method 3 2003
 
GEA LYOPHIL GMBH (1)
* 2007/0098,591 Method and apparatus for low energy vaporization of liquid oxidizing agents or solutions 14 2005
 
CARE BIOPHARMA, LLC (3)
7090808 Apparatus for testing sterilization methods and materials 7 2001
6794649 Spectrophotometric determination of gas phase compositions 6 2001
* 2003/0012,689 Apparatus for testing sterilization methods and materials 1 2001
 
TETRA LAVAL HOLDINGS & FINANCE S.A. (1)
* 2004/0013,777 Method and an apparatus for producing a gaseous medium 2 2002
 
UNITED TECHNOLOGIES CORPORATION (2)
* 7145052 Decontamination apparatus and methods 6 2004
* 2006/0270,887 DECONTAMINATION APPARATUS AND METHODS 7 2004
* Cited By Examiner