CA2333826A1 - Method and system for delivering and metering liquid sterilant - Google Patents

Method and system for delivering and metering liquid sterilant Download PDF

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Publication number
CA2333826A1
CA2333826A1 CA002333826A CA2333826A CA2333826A1 CA 2333826 A1 CA2333826 A1 CA 2333826A1 CA 002333826 A CA002333826 A CA 002333826A CA 2333826 A CA2333826 A CA 2333826A CA 2333826 A1 CA2333826 A1 CA 2333826A1
Authority
CA
Canada
Prior art keywords
container
liquid
delivery system
accumulator
delivering
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002333826A
Other languages
French (fr)
Other versions
CA2333826C (en
Inventor
Nick Ngoc Nguyen
Ross G. Krogh
James P. Kohler
Curtis H. Felt
Remigio Guinto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ethicon Inc
Original Assignee
Ethicon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ethicon Inc filed Critical Ethicon Inc
Priority to CA2744090A priority Critical patent/CA2744090C/en
Publication of CA2333826A1 publication Critical patent/CA2333826A1/en
Application granted granted Critical
Publication of CA2333826C publication Critical patent/CA2333826C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
    • A61L2/186—Peroxide solutions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
    • G01F11/28—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with stationary measuring chambers having constant volume during measurement
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/24—Apparatus using programmed or automatic operation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10—Apparatus features
    • A61L2202/12—Apparatus for isolating biocidal substances from the environment
    • A61L2202/122—Chambers for sterilisation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10—Apparatus features
    • A61L2202/14—Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10—Apparatus features
    • A61L2202/15—Biocide distribution means, e.g. nozzles, pumps, manifolds, fans, baffles, sprayers

Abstract

A system and a method for delivering and metering a fixed volume of liquid, such as a liquid sterilant from a container into a vaporization system. The method for the delivering system includes the steps of sensing a requirement for additional liquid sterilant, determining whether the liquid sterilant to be added is acceptable for use, and delivering the liquid sterilant from a container into an accumulator. The method of metering the liquid sterilant into the vaporization system includes creating a vacuum in a chamber connected to the vaporizer and delivering the liquid sterilant into a vaporizer while continually sensing the flow of the delivery. The metering system maintains a slow, controlled flow in order to achieve efficient vaporization of the liquid sterilant and to provide accurate sensing of the gas/liquid interface.

Claims (41)

1. A method of delivering a liquid from a container into an accumulator via a container delivery system, the method comprising:
determining whether the liquid in the accumulator satisfies a first pre-defined specification;
generating a signal prompting the loading of the container into the container delivery system;
releasing the container delivery system to accept the loading of the container into the container delivery system;
loading the container into the container delivery system;
closing the container delivery system;
locking the container delivery system to secure the container in the container delivery system; and delivering the liquid from the container into the accumulator.
2. The method of Claim 1, wherein the liquid is a germicide.
3. The method of Claim 1 further comprising sensing the flow of liquid from the container to the accumulator.
4. The method of Claim 1, wherein the delivering the liquid from the container into the accumulator comprises puncturing a seal on the container.
5. The method of Claim 4, wherein the puncturing a seal on the container occurs at the same time as the closing of the container delivery system.
6. The method of Claim 1, wherein the container delivery system comprises a container carrier assembly with a locking mechanism.
7. The method of Claim 1, wherein the releasing the container delivery system to accept the loading of the container into the container delivery system comprises:

pushing the container carrier assembly in towards the container delivery system in order to release the locking mechanism; and pulling the container carrier assembly out away from the container delivery system after the locking mechanism is released.
8. The method of Claim 1, wherein the determining whether the liquid in the accumulator satisfies a first pre-defined specification comprises sensing the level of the liquid in an accumulator.
9. The method of Claim 1 further comprising determining whether the liquid in the container satisfies a second pre-defined specification.
10. The method of Claim 9, wherein the determining whether the liquid in the container satisfies a second pre-defined specification comprises sensing an identifier unique to the container.
11. The method of Claim 9, wherein the identifier unique to the container is a bar code.
12. The method of Claim 9, wherein the second pre-defined specification is lot code information.
13. A delivery system of delivering a liquid from a container into an accumulator, the system comprising:
the container for delivering the liquid into the accumulator;
the accumulator for receiving the liquid from the container;
a first sensor to determine a first pre-defined specification of the accumulator;
a first delivery mechanism for loading the container into a container carver;
a second delivery mechanism for delivering the liquid in the container into the accumulator;

a release mechanism for releasing the container carrier of the delivery system; and a locking mechanism for securing the container in the delivery system.
14. The delivery system of Claim 13, wherein the liquid is a germicide.
15. The delivery system of Claim 13, wherein the container holds a fixed volume of liquid.
16. The delivery system of Claim 13, wherein the capacity of the accumulator is greater than the capacity of the container.
17. The delivery system of Claim 13, wherein the container comprises a sealing mechanism to retain the liquid in the container.
18. The delivery system of Claim 17 further comprising an opening mechanism to open the sealing mechanism of the container.
19. The delivery system of Claim 13, wherein the first sensor detects the level of the liquid in an accumulator.
20. The delivery system of Claim 13 further comprising a second sensor to determine a second pre-defined specification of the container.
21. The delivery system of Claim 20, wherein the second sensor is a bar code scanner.
22. The delivery system of Claim 20, wherein the second pre-defined specification is lot code information.
23. The delivery system of Claim 20 further comprising a third sensor to detect the flow of liquid from the container into the accumulator.
24. An opening mechanism in a liquid delivery system comprising a sealed container holding liquid and an accumulator for receiving the liquid from the container, the opening mechanism comprising:
a first puncturing device positioned for puncturing a seal on the container and creating a first opening as the container is loaded into the liquid delivery system;
a second puncturing device positioned proximate to the first puncturing device for puncturing a seal on the container and creating a second opening as the container is loaded into the liquid delivery system; and a separating mechanism connected between the first puncturing device and the second puncturing device for cutting a slit between the first opening and the second opening and widening the slit as the container is loaded into the liquid delivery system.
25. A method for opening a seal on a container holding a liquid for delivering into an accumulator, the method comprising:
loading the container into a container delivery system;
closing the container delivery system;
creating a first opening in the seal by puncturing the seal on the container when the container delivery system is closed;
creating a second opening in the seal by puncturing the seal on the container when the container delivery system is closed;
cutting a slit between the first opening and the second opening when the container delivery system is closed; and widening the slit when the container delivery system is closed.
26. The method of Claim 25, wherein a first puncturing device punctures the seal to create the first opening when the container delivery system is closed.
27. The method of Claim 25, wherein a second puncturing device punctures the seal to create the second opening when the container delivery system is closed.
28. The method of Claim 25, wherein a first puncturing device and a second puncturing device are connected by a separating mechanism.
29. The method of Claim 28, wherein the separating mechanism cuts a slit between the first opening and the second opening when the container delivery system is closed and widens the slit when the container delivery system is closed.
30. A method of delivering a liquid from an accumulator into a vaporizer via a metering tube, the method comprising:
evacuating the vaporizer;
evacuating the metering tube;
delivering the liquid from the accumulator into the metering tube at a first flow rate; and delivering the liquid from the metering tube into the vaporizer at a second flow rate, wherein the second flow rate is slower than the first flow rate.
31. The method of Claim 30, wherein the liquid is a germicide.
32. The method of Claim 30 further comprising isolating the metering tube from the accumulator.
33. The method of Claim 30 further comprising isolating the vaporizer from the metering tube.
34. The method of Claim 30 further comprising purging the metering tube with a gas.
35. The method of Claim 30 further comprising sensing a gas/liquid interface between the metering tube and the vaporizer.
36. A system of delivering a liquid from an accumulator into a vaporizer via a metering tube, the system comprising:
the accumulator for delivering the liquid to the metering tube;

the metering tube for receiving the liquid from the accumulator and delivering the liquid to the vaporizer;
the vaporizer for receiving a metered volume of the liquid from the metering tube;
a plurality of valves which control the direction and flow of the fluid in the system;
a first delivery mechanism for delivering the liquid from the accumulator to the metering tube at a first flow rate; and a second delivery mechanism for delivering the liquid from the metering tube to the vaporizer at a second flow rate, wherein the second flow rate is slower than the first flow rate.
37. The system of Claim 36, wherein the liquid is a germicide.
38. The system of Claim 36 further comprising a source of gas.
39. The system of Claim 36 further comprising a third delivery mechanism to deliver gas from the source of gas to the metering tube.
40. The system of Claim 36 further comprising a sensor to detect a gas/liquid interface between the metering tube and the vaporizer.
41. The system of Claim 36 further comprising a screen in the accumulator to filter the flow of liquid from the accumulator into the metering tube.
CA2333826A 2000-02-07 2001-02-05 Method and system for delivering and metering liquid sterilant Expired - Lifetime CA2333826C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2744090A CA2744090C (en) 2000-02-07 2001-02-05 Method and system for delivering and metering liquid sterilant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/499,418 2000-02-07
US09/499,418 US6279622B1 (en) 2000-02-07 2000-02-07 Method and system for delivering and metering liquid sterilant

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA2744090A Division CA2744090C (en) 2000-02-07 2001-02-05 Method and system for delivering and metering liquid sterilant

Publications (2)

Publication Number Publication Date
CA2333826A1 true CA2333826A1 (en) 2001-08-07
CA2333826C CA2333826C (en) 2012-04-24

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CA2744090A Expired - Lifetime CA2744090C (en) 2000-02-07 2001-02-05 Method and system for delivering and metering liquid sterilant
CA2810290A Expired - Lifetime CA2810290C (en) 2000-02-07 2001-02-05 Method and system for delivering and metering liquid sterilant
CA2333826A Expired - Lifetime CA2333826C (en) 2000-02-07 2001-02-05 Method and system for delivering and metering liquid sterilant

Family Applications Before (2)

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CA2744090A Expired - Lifetime CA2744090C (en) 2000-02-07 2001-02-05 Method and system for delivering and metering liquid sterilant
CA2810290A Expired - Lifetime CA2810290C (en) 2000-02-07 2001-02-05 Method and system for delivering and metering liquid sterilant

Country Status (8)

Country Link
US (3) US6279622B1 (en)
EP (3) EP2266632B1 (en)
JP (3) JP4994534B2 (en)
KR (3) KR100785640B1 (en)
AU (2) AU772565B2 (en)
CA (3) CA2744090C (en)
ES (3) ES2366598T3 (en)
TW (1) TW514535B (en)

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EP2266632A1 (en) 2010-12-29
JP5133444B2 (en) 2013-01-30
AU2004200583A1 (en) 2004-03-11
KR100812557B1 (en) 2008-03-13
US20020157726A1 (en) 2002-10-31
US6279622B1 (en) 2001-08-28
CA2810290C (en) 2013-12-17
JP2012016812A (en) 2012-01-26
EP1121942A2 (en) 2001-08-08
JP4994534B2 (en) 2012-08-08
CA2744090A1 (en) 2001-08-07
KR100785640B1 (en) 2007-12-14
CA2333826C (en) 2012-04-24
EP1121942B1 (en) 2011-07-06
EP2266631A1 (en) 2010-12-29
US6530399B2 (en) 2003-03-11
KR100814273B1 (en) 2008-03-18
AU772565B2 (en) 2004-04-29
JP5095845B2 (en) 2012-12-12
ES2452547T3 (en) 2014-04-01
KR20070075369A (en) 2007-07-18
JP2011227091A (en) 2011-11-10
US6390155B1 (en) 2002-05-21
ES2366598T3 (en) 2011-10-21
ES2387874T3 (en) 2012-10-03
TW514535B (en) 2002-12-21
AU1829701A (en) 2001-08-09
AU2004200583B8 (en) 2006-10-26
US20020020464A1 (en) 2002-02-21
EP2266631B1 (en) 2012-06-20
KR20070060061A (en) 2007-06-12
AU2004200583B2 (en) 2006-06-08
CA2744090C (en) 2013-12-17
EP1121942A3 (en) 2003-10-22
KR20010078342A (en) 2001-08-20
EP2266632B1 (en) 2014-01-22
CA2810290A1 (en) 2001-08-07
JP2001289687A (en) 2001-10-19

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