EP1153115A1 - Produits pour effectuer un nettoyage desinfectant de surfaces - Google Patents

Produits pour effectuer un nettoyage desinfectant de surfaces

Info

Publication number
EP1153115A1
EP1153115A1 EP00912480A EP00912480A EP1153115A1 EP 1153115 A1 EP1153115 A1 EP 1153115A1 EP 00912480 A EP00912480 A EP 00912480A EP 00912480 A EP00912480 A EP 00912480A EP 1153115 A1 EP1153115 A1 EP 1153115A1
Authority
EP
European Patent Office
Prior art keywords
cleaning
instruments
agents
invert
use according
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.)
Withdrawn
Application number
EP00912480A
Other languages
German (de)
English (en)
Inventor
Henning Schumacher
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.)
Dr Schumacher GmbH
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
Publication of EP1153115A1 publication Critical patent/EP1153115A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/48—Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/38—Cationic compounds
    • C11D1/62—Quaternary ammonium compounds

Definitions

  • the present invention relates to agents for disinfectant cleaning of surfaces in which an invert soap with at least one branched alkyl chain is used.
  • the invention relates in particular to agents for disinfectant cleaning of surfaces, the invert soap used having two short-chain alkyl groups and two long-chain alkyl groups.
  • These devices are operated at room temperature in a 2-step process, the instruments introduced being treated in a first step with known cleaning agents, such as anionic and non-ionic surfactants or enzymes to break down biological contaminants, and then in a second step with disinfectants based on Aldehydes are brought into contact.
  • cleaning agents such as anionic and non-ionic surfactants or enzymes to break down biological contaminants
  • the 2-stage reprocessing of medical instruments is carried out at elevated temperatures up to a maximum of 60 ° C.
  • the inserted goods are introduced into a washing room provided in the device, the cleaning liquor is heated up and, at a certain temperature, a detergent is metered into the washing liquor in the first step.
  • the washing liquor is drained off and fresh water mixed with disinfectant is added in a second step, so that after a certain process time at the selected temperature the instruments should be freed from germs and disinfected.
  • one or two rinses are carried out with clear water, after which the instruments are available for re-use.
  • the means used for this type of processing are modifications of the products that are used for processing at room temperature.
  • Combinations of non-ionic surfactants with complexing agents and enzymes are normally used as cleaners.
  • One goal of all of these cleaning products is to improve the wetting of the hydrophobic surfaces of the instruments and thus to increase the amount of water that flows through the narrow lumens of such devices that may be present during treatment.
  • the disinfectants used in these processes are all based on aldehydes.
  • Aldehydes are only slightly corrosive and enable a large number of microorganisms to be inactivated.
  • the effectiveness of aldehydes against spores is extremely low.
  • viruses such as picornaviruses and mycobacteria
  • inactivation of other viruses is by the currently used Disinfection procedures not possible to a sufficient extent.
  • the known methods also suffer from the disadvantage that the aldehydes used in the primary cleaning step do not fix completely removed blood or protein on the surfaces of the instruments. It has thus been found that fixation often takes place on the surfaces of narrow lumens, so that the residual contamination is not noticed during a surface visual inspection or when flushing through a wide lumen of the instruments. As is known, pathogenic germs can survive the reprocessing process in such residual contamination and infect the patient the next time the instrument is used. It has also been found that despite cleaning the instruments according to the above method, germs from a patient previously treated with this instrument are often transmitted to one The following took place.
  • Another disadvantage of known methods is that the personnel have to deal with products containing aldehyde. If, for example, the device is opened too early in the event of malfunctions or if the device is not adequately vented, aldehyde vapors can escape from the machine into the room air. The personnel can also come into contact with concentrated aldehyde solutions when loading the treatment device with fresh disinfectant products.
  • This object was achieved by a surface disinfectant which contains an invert soap with at least one branched alkyl chain.
  • the at least one branched alkyl chain has between 4 and 20 carbon atoms, preferably 6 to 16, more preferably between 8 and 14 carbon atoms. It is most preferably a branched C 8 or C 12 alkyl chain.
  • the invert soap contains at least one further long-chain alkyl group having 4 to 20 carbon atoms and also has two short alkyl groups, preferably 2 methyl groups.
  • the preparation time of the instruments can be shortened considerably. This is due in part to the bivalent properties of the agents according to the invention.
  • a one-stage preparation of the instruments is now possible, since the agents used have both cleaning and excellent microbicidal properties. Fixation of impurities in narrow lumens of the instruments also no longer occurs, so that the risk of transmission of an infection present in one patient to subsequent patients is also reduced to a minimum.
  • agents according to the invention can be used quite generally for disinfectant cleaning of all types of surfaces, such as floors, in particular floors of hospitals or swimming pools, or because of the good skin tolerance for the superficial control of fungal diseases on the skin, such as athlete's foot. Threats to operating personnel or users can be reduced to a minimum.
  • the disinfectants according to the invention can be used in the processing devices which have been customary up to now or even in open tubs at temperatures from room temperature to about 75.degree. With regard to medical instruments to be treated, treatment temperatures of approximately 40 ° C. to 65 ° C. or approximately 50 ° C. to 60 ° C. are preferred.
  • a disinfectant can be added in the pre-cleaning step, but this does not have to be identical to the agent according to the invention.
  • the water used in the treatment can have any hardness that does not affect the effectiveness of the agent according to the invention.
  • the agent according to the invention is metered into the cold or already heated treatment liquor, which can be done manually or via an automatic control.
  • the person skilled in the art taking into account his general specialist knowledge, will adjust the metered amount of the agent according to the invention and the metering temperature accordingly and determine whether the temperature of the liquor is increased immediately after metering or is maintained for a specific time.
  • the temperature of the fleet is raised to the disinfection temperature without changing the fleet and that this is kept for a certain period of time while circulating the water and cleaning and disinfecting the instruments.
  • the instrument is then washed one or more times with clear, and preferably prepared, i.e. Low-germ or essentially germ-free water is rinsed and is then available for reuse. A final drying of the medical device after rinsing is possible, but not necessary.
  • the agent can simply be added to the washing water and enables a high cleaning and disinfecting effect. It has been shown that the agent according to the invention is well tolerated by the skin and non-foaming.
  • the agent according to the invention contains an invert soap which has at least one branched alkyl group with 4 to 20 carbon atoms.
  • the branches can be located anywhere in the alkyl chain and include methyl, ethyl, propyl or butyl branches on the main chain.
  • there may be more than one branch such as two or more of methyl, ethyl or propyl branches or mixtures thereof, where the branches may be on the same or different carbon atoms on the main chain.
  • Particularly preferred branched chains include C 8 -C 12 alkyl chains which contain methyl and / or ethyl branches.
  • a particularly preferred example of a branched alkyl group is isonyl, which is available from LONZA under the product name Bardac 2170.
  • the other residues of the positively charged nitrogen atom can be branched or unbranched alkyl groups of 1 to about 20 carbon atoms, such as methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl undecyl Dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl and dodecacyl groups.
  • aryl groups or aralkyl groups such as benzyl or phenyl groups, or oxalkyl groups can also be bonded to the nitrogen.
  • Inverted soaps are preferred in which the branched and the unbranched alkyl chains are independently between 4 and 20 carbon atoms, preferably between 6 and 16, particularly preferably between 8 and 14, very particularly preferably contain between 8 and 12 carbon atoms.
  • a combination of branched and unbranched C 8 -C 12 alkyl chains has proven to be particularly effective.
  • the alkyl groups can also be unsaturated, but saturated alkyl radicals are preferred.
  • the invert soaps each have two long-chain alkyl groups each with more than 4 carbon atoms, at least one of which is branched, and two short-chain alkyl groups with 1 to 3 carbon atoms, i.e. Methyl, ethyl and / or propyl.
  • the long-chain or short-chain alkyl groups on a nitrogen atom can each be the same or different, with the proviso that at least 1 branched alkyl group is bonded to the nitrogen.
  • Both inorganic ions such as fluoride, chloride, bromide or iodide and organic anions such as citrate, propionate or ethyl sulfate or methosulfate can be used as counterions.
  • the counterion in the treatment is not the counterion that saturates the positive charge of the invert soap when the microbicidal active ingredient is added, but the counterion that is present in large excess or alone when the agent according to the invention is used and influences the properties of the product.
  • the person skilled in the art will use the appropriate counterion on the basis of his general specialist knowledge and taking into account the circumstances and the objective of the use.
  • the invert soap is dissolved in a solvent, for example water, for better application, and surfactants, corrosion inhibitors, foam suppressants, acids or alkalis for setting a desired pH value, dyes and / or fragrances may also be present.
  • a solvent for example water
  • surfactants, corrosion inhibitors, foam suppressants, acids or alkalis for setting a desired pH value, dyes and / or fragrances
  • further known microbicidal active ingredients such as, for example, aldehydes, in particular glutardialdehyde, benzalkonium chloride, didecylmethyl oxyethylammonium propionate, polyhexamethylene biguanide and its salts, chlorhexidine and its salts, chlorine and chlorine releasers such as chloramine T, and or per compounds such as potassium monopersulfate, or peracetic acid, azine derivatives such as hexahydrotriazine, microbicidal organic acids such as malic acid, sorbic acid, sal
  • the plurality or the individual of the microbicidal active ingredients are formulated into the product in an amount so that, with a customary dosage of the product in the processing device, a safe disinfection of the medical device is ensured during the processing process. This can be determined in advance in simple laboratory tests with contaminated screws or rubber hose pieces.
  • customary dosages of the active compounds according to the invention are about 100 to 1000 ppm, preferably 200-600 ppm. particularly preferably 300-500 ppm, based on the entire liquor, the temperature of the liquor being at room temperature, preferably at elevated temperatures of up to 75 ° C., and the holding time being between 5 minutes and 10 minutes.
  • Foam dampers, perfume oils or colors can be dosed.
  • the surfactants in the product according to the invention are advantageously chosen such that the cloud point of the agent in an aqueous solution at application concentration is approximately at the metering temperature at which the agent is added to the liquor.
  • concentration of the agents according to the invention in the wash water can be increased accordingly and is in the range of up to 1-2%.
  • High concentrations thereof in the wash water are not disadvantageous for the operating personnel due to the low vapor pressure of the agents, since there is essentially no transition into the ambient air. Even contact of diluted solutions with the skin is essentially harmless.
  • the wash water for disinfectant cleaning can be done simply by dosing the agent from a concentrated solution. It is also possible to use a spray, which is used particularly in the treatment of athlete's foot. However, sprays are also conceivable for treating tables, among other things.
  • Examples 2 and 5 are comparative examples and show the superior properties of the products according to the invention when reprocessing instruments.
  • Disinfectant formulations 1 to 9 listed in Table I below were prepared. No invert soap was used in formulations 2 to 5.
  • the products are all clear and stable for at least one week even at an elevated temperature of 50 ° C.
  • the blood solubility of the formulations was investigated with coagulated, heparinized mutton blood on rubber tubes.
  • the pieces of tubing were covered with a thin layer of blood and left to dry for one hour.
  • the tube pieces were then immersed in the disinfectant solution at a preparation temperature of 60 ° C. for 10 minutes, removed after the time had elapsed and assessed after drying.
  • the test was carried out at 50 ° C, the pollution was the one prescribed by CEN. After the exposure time, it was determined whether or not survivable germs were still present in the contamination on the screws after the treatment. The number given indicates the duration of the treatment in minutes. after which growth was no longer detectable.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

La présente invention concerne des produits utilisés pour effectuer un nettoyage désinfectant de surfaces, dans lesquels on utilise un savon antiseptique comprenant au moins une chaîne alkyle ramifiée. L'invention concerne en outre des produits utilisés pour effectuer un nettoyage désinfectant de surfaces, dans lesquels le savon antiseptique utilisé présente deux groupes alkyle à chaîne courte et deux groupes alkyle à chaîne longue.
EP00912480A 1999-02-19 2000-02-18 Produits pour effectuer un nettoyage desinfectant de surfaces Withdrawn EP1153115A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19907120 1999-02-19
DE1999107120 DE19907120A1 (de) 1999-02-19 1999-02-19 Mittel zur desinfizierenden Reinigung von Oberflächen
PCT/EP2000/001334 WO2000049118A1 (fr) 1999-02-19 2000-02-18 Produits pour effectuer un nettoyage desinfectant de surfaces

Publications (1)

Publication Number Publication Date
EP1153115A1 true EP1153115A1 (fr) 2001-11-14

Family

ID=7898131

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00912480A Withdrawn EP1153115A1 (fr) 1999-02-19 2000-02-18 Produits pour effectuer un nettoyage desinfectant de surfaces

Country Status (6)

Country Link
EP (1) EP1153115A1 (fr)
AU (1) AU3423700A (fr)
CA (1) CA2368284A1 (fr)
DE (1) DE19907120A1 (fr)
MX (1) MXPA01008404A (fr)
WO (1) WO2000049118A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10140361B4 (de) * 2001-08-17 2009-07-16 Rüdiger Bode Verwendung einer Biguanide enthaltenden Zubereitung zur Hufpflege
DE10147186A1 (de) * 2001-09-25 2003-04-24 Beiersdorf Ag Wirkstoffkombinationen aus Polyhexamethylenbiguanid-Hydrochlorid und Distearyldimethylammoniumchlorid und Zubereitungen, solche Wirkstoffkombinationen enthaltend
GB0127559D0 (en) 2001-11-16 2002-01-09 Syngenta Participations Ag Organic compounds

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE444112B (sv) * 1978-06-15 1986-03-24 Dental Therapeutics Ab Rengoringsmedel for dentinytor
US4455250A (en) * 1981-01-12 1984-06-19 American Cyanamid Company Stable liquid hard surface cleanser composition containing DGH and a quaternary germicide
GB2157678B (en) * 1982-05-27 1987-12-02 Millmaster Onyx Group Inc Anti-microbial di-decyl quaternary ammonium compounds
DE3503848A1 (de) * 1985-02-05 1986-08-07 Fresenius AG, 6380 Bad Homburg Desinfektionsmittel
DE3620011A1 (de) * 1986-06-13 1987-12-17 Henkel Kgaa Neue kationtenside auf der basis von quartaeren ammoniumverbindungen und ihre verwendung in reinigungsmitteln
DE3719194A1 (de) * 1987-06-09 1988-12-29 Henkel Kgaa Fungizide wirkstoffgemische
GB9020559D0 (en) * 1990-09-20 1990-10-31 Keymed Medicals & Ind Equip Cleaning and disinfecting medical instruments
JP3931254B2 (ja) * 1993-03-30 2007-06-13 スリーエム カンパニー 多表面洗浄組成物およびその使用方法
US5547990A (en) * 1994-05-20 1996-08-20 Lonza, Inc. Disinfectants and sanitizers with reduced eye irritation potential
JPH11342182A (ja) * 1998-06-03 1999-12-14 Matsushita Electric Ind Co Ltd 浴室除菌装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0049118A1 *

Also Published As

Publication number Publication date
DE19907120A1 (de) 2000-08-24
CA2368284A1 (fr) 2000-08-24
WO2000049118A1 (fr) 2000-08-24
MXPA01008404A (es) 2004-08-23
AU3423700A (en) 2000-09-04

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