FI964758A0 - Method and apparatus for removing ethylene chloride used for sterilization purposes - Google Patents

Method and apparatus for removing ethylene chloride used for sterilization purposes

Info

Publication number
FI964758A0
FI964758A0 FI964758A FI964758A FI964758A0 FI 964758 A0 FI964758 A0 FI 964758A0 FI 964758 A FI964758 A FI 964758A FI 964758 A FI964758 A FI 964758A FI 964758 A0 FI964758 A0 FI 964758A0
Authority
FI
Finland
Prior art keywords
gas
ethylene oxide
scrubber
sterilisation chamber
gas circuit
Prior art date
Application number
FI964758A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI964758A (en
Inventor
Harmut Leitzke
Bernd Drzevitzky
Hans-Juergen Walke
Original Assignee
Bernd Drzevitzky
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6519440&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI964758(A0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bernd Drzevitzky filed Critical Bernd Drzevitzky
Publication of FI964758A0 publication Critical patent/FI964758A0/en
Publication of FI964758A publication Critical patent/FI964758A/en

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
    • A61L2/206—Ethylene oxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Treating Waste Gases (AREA)
  • Processing Of Solid Wastes (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Epoxy Compounds (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)

Abstract

A process and device are disclosed for disposing of ethylene oxide gas used for sterilising objects within a vacuum sterilisation chamber (5) by means of a pump (10) connected to the sterilisation chamber (5) that supplies ethylene oxide after sterilisation to a gas scrubber (15) that works with acids. The sterilisation chamber (5), the pump (10) and the gas scrubber (15) form a closed gas circuit; the pump (10) continuously delivers ethylene oxide from the sterilisation chamber (5) to the gas scrubber (15), and the exhaust gas from the gas scrubber (15) is supplied to the sterilisation chamber (5). The ethylene glycol formed from ethylene oxide in the gas scrubber (15) is continuously withdrawn from the gas scrubber (15) and further acids are continuously added to the gas scrubber (15) depending on its acid consumption. This cycle is maintained until the residual concentration of ethylene oxide in the gas circuit falls below a predetermined level. An inert gas source (48) is preferably connected to the gas circuit (5, 35, 10, 39, 15, 40, 38) to supply inert gas to the gas circuit in a controlled manner when the ethylene oxide elimination causes the gas circuit inner pressure to fall, the pressure drop in the gas circuit being adjustable.
FI964758A 1994-05-31 1996-11-29 Methylene chloride method and apparatus used for sterilization FI964758A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4419001A DE4419001C2 (en) 1994-05-31 1994-05-31 Process for disposing of the ethylene oxide gas after fumigation of the item to be sterilized and device therefor
PCT/DE1995/000700 WO1995032788A1 (en) 1994-05-31 1995-05-30 Process and device for disposing of ethylene oxide gas used for sterilisation purposes

Publications (2)

Publication Number Publication Date
FI964758A0 true FI964758A0 (en) 1996-11-29
FI964758A FI964758A (en) 1997-01-03

Family

ID=6519440

Family Applications (1)

Application Number Title Priority Date Filing Date
FI964758A FI964758A (en) 1994-05-31 1996-11-29 Methylene chloride method and apparatus used for sterilization

Country Status (15)

Country Link
EP (1) EP0762924B1 (en)
JP (1) JPH10500623A (en)
KR (1) KR970703189A (en)
AT (1) ATE191364T1 (en)
AU (1) AU2610195A (en)
BR (1) BR9507809A (en)
CA (1) CA2191741A1 (en)
CZ (1) CZ345496A3 (en)
DE (4) DE4419001C2 (en)
DK (1) DK0762924T3 (en)
ES (1) ES2147290T3 (en)
FI (1) FI964758A (en)
HU (1) HUT76127A (en)
NO (1) NO964928L (en)
WO (1) WO1995032788A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19609204C2 (en) * 1996-03-09 1999-01-21 Drzevitzky Bernd Process for exhaust gas scrubbing of the exhaust gases from a desorption device of a sterilizer, in which items to be sterilized have been gassed with ethylene oxide to kill germs, and device for carrying out the process
DE19701677C1 (en) * 1997-01-18 1999-01-28 Drzevitzky Bernd Process and assembly to progressively remove especially poison gases e.g. ethylene oxide
DE19708669C5 (en) * 1997-03-04 2006-02-23 Binker Materialschutz Gmbh Environmentally friendly fumigation process
DE102011000184A1 (en) 2011-01-17 2012-07-19 Medicoplast International Gmbh Sterilization device has ethylene oxide fillable sterilization chamber and heated desorption chamber, where internal combustion engine is provided with supporting fuel terminal
CN104128088B (en) * 2014-08-16 2016-06-08 山东新华医疗器械股份有限公司 Ethylene oxide sterilizer exhaust treatment system and waste gas processing method
CN106861388B (en) * 2017-03-23 2023-10-27 杭州博控机电设备有限公司 Ethylene oxide waste gas treatment and energy recovery system
FR3102060B1 (en) 2019-10-21 2023-03-10 Solsteo Ethylene oxide sterilization facility with controlled environmental impacts

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1925412A1 (en) * 1969-05-19 1970-11-26 Muenchener Medizin Mechanik Gm Removing poison gases eg by steam
DE2814132A1 (en) * 1978-04-01 1979-10-11 Leybold Heraeus Gmbh & Co Kg Mechanical vacuum pump with polyethylene oxide sealing liquid - is useful in sterilisation plant operating with ethylene oxide
SE425717B (en) * 1980-01-07 1982-11-01 Vibrasug Ab KIT ON STERILIZATION OF MATTRESSES, SLEEVES AND LIKE GOODS IN A STERILIZER, AND APPARATUS FOR IMPLEMENTATION OF THE KIT
US4517167A (en) * 1983-05-25 1985-05-14 Johnson & Johnson Continuous removal of ethylene oxide from gaseous streams
DE4117306C1 (en) * 1991-05-27 1992-06-04 Air Products Gmbh, 4320 Hattingen, De
DE4138321C2 (en) * 1991-11-21 1995-05-18 Herco Kuehltechnik Hermanns Un Process and plant for the recovery of a sterilizing gas

Also Published As

Publication number Publication date
DE19580562D2 (en) 1997-07-17
EP0762924A1 (en) 1997-03-19
ES2147290T3 (en) 2000-09-01
NO964928D0 (en) 1996-11-20
DE59508139D1 (en) 2000-05-11
CZ345496A3 (en) 1997-04-16
CA2191741A1 (en) 1995-12-07
DE4419001A1 (en) 1995-12-07
FI964758A (en) 1997-01-03
JPH10500623A (en) 1998-01-20
DE4419001C2 (en) 1996-07-25
HUT76127A (en) 1997-06-30
AU2610195A (en) 1995-12-21
KR970703189A (en) 1997-07-03
DE29521705U1 (en) 1998-04-09
EP0762924B1 (en) 2000-04-05
DK0762924T3 (en) 2000-09-11
BR9507809A (en) 1997-09-16
ATE191364T1 (en) 2000-04-15
WO1995032788A1 (en) 1995-12-07
NO964928L (en) 1996-11-20
HU9603286D0 (en) 1997-01-28

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Legal Events

Date Code Title Description
FD Application lapsed