GB1215891A - Indicators for steam sterilisation - Google Patents

Indicators for steam sterilisation

Info

Publication number
GB1215891A
GB1215891A GB1385068A GB1385068A GB1215891A GB 1215891 A GB1215891 A GB 1215891A GB 1385068 A GB1385068 A GB 1385068A GB 1385068 A GB1385068 A GB 1385068A GB 1215891 A GB1215891 A GB 1215891A
Authority
GB
United Kingdom
Prior art keywords
sheet
steam
indicator
dyestuff
indicators
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.)
Expired
Application number
GB1385068A
Inventor
Roy Henry Maxwell
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1385068A priority Critical patent/GB1215891A/en
Publication of GB1215891A publication Critical patent/GB1215891A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators
    • G01N31/226—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators for investigating the degree of 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
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/26—Accessories or devices or components used for biocidal treatment
    • A61L2/28—Devices for testing the effectiveness or completeness of sterilisation, e.g. indicators which change colour

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Biophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

1,215,891. Temperature indicators. R.H. MAXWELL. June 17, 1969 [March 22, 1968] No.13850/68. Heading G1D. An indicator for steam sterilization comprises a steam sensitive indicator in the form of an opaque steam porous body, such as a sheet of paper, carrying a dyestuff remote from the front face thereof such that, under the influence of steam, the dyestuff will migrate to the front face thereof, and a temperature sensitive melt-type indicator in the form of a coloured surface coated with an opaque material which melts at a desired temperature, both indicators being sandwiched between a transparent or translucent front viewing sheet and a steam porous backing sheet, preferably of polymeric foam material, which permits access of steam to the indicators, whilst preventing leakage of the dyestuff. In a specific example given, the front viewing sheet was a transparent sheet of polyester resin having a pressure sensitive adhesive on one face. The steam indicator was in the form of a water soluble dye (carmoisine) bonded with a polymeric, preferably acrylic binder and coated on to a sheet of paper, the face of which remote from the dye was stuck to the front viewing sheet. It was arranged that under the action of steam the dyestuff would become visible from the front face in about twelve minutes. The steam indicator was cut in the shape of a disc with a central hole, the temperature sensitive indicator in the form of a sheet of black paper coated with rhamintol, an opaque white material which melts at 121‹ C., being located in the hole. A polymeric foam disc was added to the assembly as a backing sheet. The use is also described of a waterinsoluble dye in a water soluble binder and if desired one sheet of paper may be used to fulfill the functions of both indicators by having at least part of the back surface of the sheet coated with the dyestuff and at least part of the front surface coated with the melt-type indicator.
GB1385068A 1968-03-22 1968-03-22 Indicators for steam sterilisation Expired GB1215891A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1385068A GB1215891A (en) 1968-03-22 1968-03-22 Indicators for steam sterilisation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1385068A GB1215891A (en) 1968-03-22 1968-03-22 Indicators for steam sterilisation

Publications (1)

Publication Number Publication Date
GB1215891A true GB1215891A (en) 1970-12-16

Family

ID=10030496

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1385068A Expired GB1215891A (en) 1968-03-22 1968-03-22 Indicators for steam sterilisation

Country Status (1)

Country Link
GB (1) GB1215891A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2616366A1 (en) * 1975-04-14 1976-10-28 Bio Medical Sciences Inc STERILITY INDICATOR
EP0022284A1 (en) * 1979-06-11 1981-01-14 Py Mah Corporation Steam sterilization indicator
FR2508317A1 (en) * 1981-06-26 1982-12-31 Charvin Guy STERILIZATION INDICATOR
EP0132107A2 (en) * 1983-07-15 1985-01-23 The Victoria University Of Manchester A device for detecting the presence of air in a steam steriliser
WO1987004931A1 (en) * 1986-02-22 1987-08-27 The Victoria University Of Manchester An indicator sheet for an autoclave test pack
US5158363A (en) * 1991-08-16 1992-10-27 Propper Manufacturing Company, Inc. Steam sterilization indicator
EP0628317A1 (en) * 1993-06-09 1994-12-14 PyMaH Corporation Simplified sterilizer vacuum test pack

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2616366A1 (en) * 1975-04-14 1976-10-28 Bio Medical Sciences Inc STERILITY INDICATOR
USRE34515E (en) 1979-06-11 1994-01-18 Pymah Corporation Steam sterilization indicator
EP0022284A1 (en) * 1979-06-11 1981-01-14 Py Mah Corporation Steam sterilization indicator
FR2508317A1 (en) * 1981-06-26 1982-12-31 Charvin Guy STERILIZATION INDICATOR
EP0069037A1 (en) * 1981-06-26 1983-01-05 Guy Charvin Sterilization indicator
EP0132107A2 (en) * 1983-07-15 1985-01-23 The Victoria University Of Manchester A device for detecting the presence of air in a steam steriliser
EP0132107A3 (en) * 1983-07-15 1986-01-22 The Victoria University Of Manchester A device for detecting the presence of air in a steam steriliser
WO1987004931A1 (en) * 1986-02-22 1987-08-27 The Victoria University Of Manchester An indicator sheet for an autoclave test pack
GB2208436B (en) * 1986-02-22 1989-12-06 Univ Manchester
GB2208436A (en) * 1986-02-22 1989-03-30 Univ Manchester An indicator sheet for an autoclave test pack
US5158363A (en) * 1991-08-16 1992-10-27 Propper Manufacturing Company, Inc. Steam sterilization indicator
USRE36062E (en) * 1991-08-16 1999-01-26 Propper Manufacturing Co., Inc. Steam sterilization indicator
EP0628317A1 (en) * 1993-06-09 1994-12-14 PyMaH Corporation Simplified sterilizer vacuum test pack
AU681127B2 (en) * 1993-06-09 1997-08-21 Minnesota Mining And Manufacturing Company Simplified sterilizer vacuum test pack

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