CA2497596A1 - Plasma-enhanced vacuum drying - Google Patents

Plasma-enhanced vacuum drying Download PDF

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Publication number
CA2497596A1
CA2497596A1 CA002497596A CA2497596A CA2497596A1 CA 2497596 A1 CA2497596 A1 CA 2497596A1 CA 002497596 A CA002497596 A CA 002497596A CA 2497596 A CA2497596 A CA 2497596A CA 2497596 A1 CA2497596 A1 CA 2497596A1
Authority
CA
Canada
Prior art keywords
plasma
chamber
articles
vacuum drying
sterilizing
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
CA002497596A
Other languages
French (fr)
Other versions
CA2497596C (en
Inventor
Robert M. Spencer
Tralance O. Addy
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
Johnson & Johnson Medical, Inc.
Robert M. Spencer
Tralance O. Addy
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
Priority claimed from US08/320,932 external-priority patent/US5656238A/en
Application filed by Johnson & Johnson Medical, Inc., Robert M. Spencer, Tralance O. Addy, Ethicon, Inc. filed Critical Johnson & Johnson Medical, Inc.
Publication of CA2497596A1 publication Critical patent/CA2497596A1/en
Application granted granted Critical
Publication of CA2497596C publication Critical patent/CA2497596C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • A61L2/20—Gaseous substances, e.g. vapours
    • A61L2/208—Hydrogen peroxide
    • 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
    • A61L2202/20—Targets to be treated
    • A61L2202/24—Medical instruments, e.g. endoscopes, catheters, sharps

Abstract

A plasma-enhanced vacuum drying method is disclosed. It is advantageously applied in plasma sterilization processes in particular, and represents a significant improvement for general evacuation drying methods. Articles to be sterilized are placed in a sealed chamber and the chamber is evacuated. A plasma of residual gas species is generated in the chamber during an initial evacuation step. This promotes drying of the articles and advantageously allows a desized pressure to be attained more quickly than without the plasma. Sterilizing gas is injected into the chamber, and a second plasma is generated to activate the sterilizing gas plasma, thereby sterilizing the articles in the chamber.
CA002497596A 1994-10-11 1995-10-10 Plasma-enhanced vacuum drying Expired - Lifetime CA2497596C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/320,932 1994-10-11
US08/320,932 US5656238A (en) 1994-10-11 1994-10-11 Plasma-enhanced vacuum drying
CA002160208A CA2160208C (en) 1994-10-11 1995-10-10 Plasma-enhanced vacuum drying

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002160208A Division CA2160208C (en) 1994-10-11 1995-10-10 Plasma-enhanced vacuum drying

Publications (2)

Publication Number Publication Date
CA2497596A1 true CA2497596A1 (en) 1996-04-12
CA2497596C CA2497596C (en) 2007-12-04

Family

ID=34423901

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002497596A Expired - Lifetime CA2497596C (en) 1994-10-11 1995-10-10 Plasma-enhanced vacuum drying

Country Status (1)

Country Link
CA (1) CA2497596C (en)

Also Published As

Publication number Publication date
CA2497596C (en) 2007-12-04

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Effective date: 20151013