For Medical Or Dental Instruments Or Equipment (e.g., Electronic Hematological Analyzer, Etc.) Patents (Class 510/161)
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Patent number: 6916493Abstract: A two-part disinfecting systems, as well as disinfecting compositions and methods for making and using the same. The two-part disinfecting system contains a first part and a second part adapted to be mixed to yield an aqueous disinfecting composition, wherein the first part comprises a chlorite and the second part comprises an acid and an optional oxidizable colorant, and wherein the first part, the second part, or both the first and second parts comprise an alpha olefin sulfonate.Type: GrantFiled: February 25, 2003Date of Patent: July 12, 2005Assignee: Alcide CorporationInventors: Joseph Morelli, C. Cayce Warf, Jr., Maura Aldrich, Cecilia Moser Morse, Jean Wiley
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Patent number: 6908891Abstract: The invention relates to the use of agents, which contain at least one disinfection system based on selected organic peracids and combinations of peracids, in automatically functioning systems, in which fragile medical appliances, in particular, endoscopes, are cleaned and disinfected. According to the invention, the appliances are brought into contact with an aqueous disinfection agent solution after they have been treated and/or at the same time they are being treated with an aqueous cleaning solution. The invention also relates to cleaning and disinfection agents and methods which are all suited for carrying out this purpose.Type: GrantFiled: December 14, 2000Date of Patent: June 21, 2005Assignee: Ecolab GmbH & Co. oGHInventors: Holger Biering, Rudolf Glasmacher, Hubert Schwidden, Jorg Sorns
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Patent number: 6905550Abstract: Removal of water-insoluble organic residues from inorganic surfaces can be accomplished in aqueous cleaning solutions containing an oxidant at a preselected temperature wherein the pH is adjusted with respect to the isoelectric point of the surface material to be removed so that the pH is above the pK, and the isoelectric point of the surface for acid materials, and below the PKa and the isoelectric point of the surface for basic materials. Surfactants can also be added to the cleaning solution.Type: GrantFiled: November 19, 1997Date of Patent: June 14, 2005Assignee: Princeton Trade & Technology, Inc.Inventor: Mohamed Emam Labib
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Patent number: 6855678Abstract: The present invention relates to improved cleaning compositions and new methods for treating medical residue such as that remaining on surgical devices and appliances after use. The medical residue treatment compositions of the invention include: (a) at least one surfactant; (b) at least one solvent; (c) at least one co-solvent; (d) at least one nitrogen containing biocide; and (e) at least one organic chelating agent.Type: GrantFiled: January 20, 2003Date of Patent: February 15, 2005Inventor: Reginald Reith Whiteley
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Patent number: 6825155Abstract: A dental resin material mixed with a composition containing, as a maincomponent, titanium dioxide whose surface has been partly coated with apatite. In the dental resin material, it is preferable that anatase-, rutile-, brookit-type titanium dioxide or a mixture of these components is used as the titanium dioxide. The apatite for partial coating of titanium dioxide is produced by immersing powdery titanium dioxide in a pseudo body fluid and stirring the immersed titanium dioxide approximately at the same temperature as a human body temperature, i.e., 36° C. In this instance, it is important that the apatite is deposited in the form of platy crystals of less than 2 mm in thickness to cover 0.001-10% of the surface of titanium dioxide.Type: GrantFiled: April 4, 2002Date of Patent: November 30, 2004Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Toru Nonami, Takayuki Kumagai, Hiroshi Taoda
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Publication number: 20040224864Abstract: Disclosed are methods for sterilizing embolic compositions under conditions wherein the viscosity of the composition is minimally transformed after sterilization as compared to the composition prior to sterilization.Type: ApplicationFiled: February 26, 2004Publication date: November 11, 2004Inventors: William R. Patterson, Richard J. Greff, Richard S. Bein
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Publication number: 20040209790Abstract: The invention relates to a method for cleaning a contaminated medical instrument including the step of immersing the instrument in a solution containing an enzyme based cleaning composition including a “hospital grade disinfectant”. Compositions useful for cleaning contaminated medical instruments in accordance with the method include an enzyme, a quat biocide and an “activity protector”, which may be for example, enzyme stabilizers, enzyme stabilizing systems, micelle formation modifiers and inhibitors, and combinations thereof.Type: ApplicationFiled: May 12, 2004Publication date: October 21, 2004Inventors: Alex Sava, Steven Kritzler
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Patent number: 6797681Abstract: An environmentally friendly decontaminant solution, which may be disposed of after use without posing significant environmental hazards, is formulated without molybdenum-based corrosion inhibitors and preferably is free of all heavy metals. A zeolite-based buffering system optionally replaces phosphate buffers for maintaining the pH of the decontaminant solution at an appropriate pH for effective antimicrobial decontamination. Molybdenum-free decontaminant solutions containing peracetic acid retain their peracetic acid levels, and thus their antimicrobial effectiveness, for longer periods than comparable solutions formulated with a molybdate corrosion inhibitor.Type: GrantFiled: November 20, 2002Date of Patent: September 28, 2004Assignee: Steris Inc.Inventors: Christopher M. Fricker, Brian C. Wojcieck, Stephanie A. S. Harrington, Iain F. McVey, George E. Grignol
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Patent number: 6790816Abstract: Contact lens cleaning compositions comprising preserved surfactant-containing solutions of a poly(oxypropylene)-poly(oxyethylene) adduct of ethylene diamine having a molecular weight from about 7500 to as high as 27,000 wherein at least 40 weight percent of the adduct is poly(oxyethylene) hydrophilic units. The solutions are effective in removing protein/lipid tear film deposits on both hard and soft contact lenses while providing a prophylactic-like action in retarding the formation of subsequent tear film deposits. The compositions provide effective cleaning and conditioning action using both ambient and high temperature disinfection methods.Type: GrantFiled: February 13, 2001Date of Patent: September 14, 2004Assignee: Bausch & Lomb IncorporatedInventors: Erning Xia, Christine E. Soltys-Robitaille, Lisa C. Simpson
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Patent number: 6762161Abstract: The invention relates to a method for cleaning a contaminated medical instrument including the step of immersing the instrument in a solution containing an enzyme based cleaning composition including a “hospital grade disinfectant”. Compositions useful for cleaning contaminated medical instruments in accordance with the method include an enzyme, a quat biocide and an “activity protector”, which may be for example, enzyme stabilizers, enzyme stabilizing systems, micelle formation modifiers and inhibitors, and combinations thereof.Type: GrantFiled: April 10, 2003Date of Patent: July 13, 2004Assignee: Novapharm Research (Australia) Pty LTDInventors: Alex Sava, Steven Kritzler
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Patent number: 6762160Abstract: This invention relates to compositions for removing biofilms from contaminated surfaces. The compositions minimally comprise a detergent and a salt or a salt-forming acid. Preferably, the compositions comprise a detergent and a salt-forming acid, to provide salts and acids in equilibrium, in such a way that the biofilm is rapidly dismantled and removed in such an environment. The compositions may also comprise a bactericide, for destroying bacteria.Type: GrantFiled: May 9, 2001Date of Patent: July 13, 2004Assignee: Universite de MontrealInventors: Jean Barbeau, Denis Gravel, Abdelkrim Habi
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Publication number: 20040101881Abstract: A solution is disclosed which is useful in removing contaminating nucleic acids from various surfaces, including areas such as laboratory bench tops, floors and walls, as well as surfaces of instruments and equipment in laboratories where nucleic acid amplification reactions are conducted. Further, methods and kits are provided that afford effective decontamination and removal of nucleic acids from such surfaces.Type: ApplicationFiled: December 15, 2003Publication date: May 27, 2004Inventors: Gerard Durmowicz, Christine Martinaitis, Tiffiny Poth
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Publication number: 20040048760Abstract: The present invention relates to methods for cleaning, rinsing, and/or antimicrobial treatment of medical carts, medical cages, and other medical instruments, devices or equipment. The method for cleaning employs a solid alkaline, for example a solid carbonate, cleaning composition for cleaning the medical cart, cage, instrument, device, or equipment. The method for rinsing employs a solid neutral or neutralizing rinse composition for rinsing the medical cart, cage, instrument, device, or equipment. The method for antimicrobial treatment employs a solid, for example a solid quaternary ammonium or solid halogen, antimicrobial composition, for antimicrobial treatment of the medical cart, cage, instrument, device, or equipment.Type: ApplicationFiled: September 2, 2003Publication date: March 11, 2004Applicant: Ecolab Inc.Inventors: Reid Rabon, Sally K. Swart, Denise Chandler, Terrence P. Everson
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Patent number: 6696397Abstract: An antiseptic soap composition includes alcohol as an active ingredient in combination with a sudsing agent. In a preferred embodiment, the composition includes: SD 40 alcohol or isopropyl alcohol in an amount of between 35% and 80% by weight; ammonium lauryl sulfate as a sudsing agent in an amount of between 5% and 30% by weight; one or more oils as a grease cutting agent and fragrance enhancer; one or more thickening agents; a catalyst; and water.Type: GrantFiled: April 14, 2003Date of Patent: February 24, 2004Inventor: Victor Staats
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Publication number: 20040033916Abstract: The invention relates to the preparations used for disinfecting and applied in national economy, medicine, laboratories of all types. The preparation contains a chelating metal complex compound with a monodentate ligand, which exhibits affinity to hydrogen ion, an ionogenic surfactant and a solvent. The preparation displays antiseptic properties and effectiveness of the content. The preparation affects gram positive and gram negative bacteria, viruses, spores. The preparation can be applied in a broad temperature interval.Type: ApplicationFiled: June 28, 2002Publication date: February 19, 2004Inventors: Vladimir Semenovich Kuzmin, Oleg Ivanovich Lukashov, Viktor Stanislavovich Polyakov, Valeriy Vasilievich Ermilov
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Publication number: 20040029752Abstract: The invention relates to a method for cleaning a contaminated medical instrument including the step of immersing the instrument in a solution containing an enzyme based cleaning composition including a “hospital grade disinfectant”. Compositions useful for cleaning contaminated medical instruments in accordance with the method include an enzyme, a quat biocide and an “activity protector”, which may be for example, enzyme stabilizers, enzyme stabilizing systems, micelle formation modifiers and inhibitors, and combinations thereof.Type: ApplicationFiled: April 10, 2003Publication date: February 12, 2004Inventors: Alex Sava, Steven Kritzler
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Publication number: 20030228988Abstract: The invention relates to a method to stabilise ozone in solution. The invention also relates to cleaning compositions using the stabilised ozone solutions that may be used to remove all types of unwanted substances and bacteria, while being stable and having no negative impact on the environment.Type: ApplicationFiled: September 27, 2002Publication date: December 11, 2003Applicant: Otre ABInventors: Lars Kloo, Margareta Eriksson
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Patent number: 6638902Abstract: The present invention relates to a solid enzyme cleaning composition in which the enzyme is stable in the presence of mixtures of carbonate and bicarbonate at alkaline pH, and methods employing this composition. The enzyme cleaning composition preferably employs weight ratios of carbonate and bicarbonate to stabilize one or more enzymes in a solid, a concentrate, and/or a use composition, and at temperatures higher than ambient.Type: GrantFiled: February 1, 2001Date of Patent: October 28, 2003Assignee: Ecolab Inc.Inventors: James J. Tarara, Sally K. Swart, Tareasa Lynn Bradley, Reid Rabon, Denise Chandler
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Patent number: 6634369Abstract: In a process to clean a polyurethane glove, which has been cured on a glove form, so as to remove non-volatile residues and low-volatility residues from the glove before the glove is removed from the form, the form bearing the glove is immersed in a quiescent or agitated bath consisting essentially of a solvent selected from isopropyl alcohol, hexane, and blends of isopropyl and hexane, preferably isopropyl alcohol, at an elevated temperature of approximately 60° C., for a predetermined time not less than approximately five minutes, preferably for a predetermined time of approximately ten to twenty minutes, whereupon the form bearing the glove is withdrawn from the bath and the glove is allowed to be air-dried on the form.Type: GrantFiled: July 12, 2001Date of Patent: October 21, 2003Assignee: Wilshire Technologies, Inc.Inventors: Lee John Jared, Derek Warneke, Ferdinand Frederick Pisacane
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Patent number: 6623695Abstract: An anticorrosive, penetration enhancing composition for cleaning decontaminating and rinsing includes electrochemically activated (ECA) water as the decontamination agent. The anticorrosive decontamination composition has, as the anticorrosive agent, a compound or mixture of compounds capable of inhibiting corrosion of various metals used in sterilization decontamination and rinsing systems and objects such as medical instruments. Preferred anticorrosive compounds include phosphates, azoles, and sulfates. Other additives, including wetting agents, are added to reduce the surface energy of the ECA water. This reduced surface energy permits the ECA water to penetrate into objects of complex design thus permitting complete decontamination of the treated object.Type: GrantFiled: October 27, 1999Date of Patent: September 23, 2003Assignee: Steris CorporationInventors: Paul S. Malchesky, Christopher M. Fricker
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Publication number: 20030096720Abstract: A composition for simultaneous cleaning and decontaminating a device. The composition is a per-compound oxidant in an amount effective for decontaminating the device and an enzyme in an amount effective for cleaning the device. The device may be a medical device such as an endoscope or kidney dialyzer and a plurality of devices can be cleaned using the same composition. The composition may additionally contain a corrosion inhibitor in an amount effective to prevent corrosion of a metal, a chelator, a buffer, a dye and combinations thereof.Type: ApplicationFiled: June 27, 2002Publication date: May 22, 2003Applicant: Metrex Research CorporationInventors: Stanley William Huth, Zhi-Jian Yu
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Publication number: 20030079758Abstract: A composition and a method for decontaminating small diameter water lines for medical equipment which effectively dislodges and eliminates a biofilm and at the same time destroy the microorganism flora in the fresh water and in the dislodged biofilm. In addition the composition or method does not corrode water line materials, it is safe and non-toxic, it does not expose patients to the decontaminaiting chemicals or process, it does not leave significant residual chemicals in the water line, it does not require the use of sterile solutions and aseptic technique by dental personel, and it does not require mixing or dilution of chemicals prior to use.Type: ApplicationFiled: February 8, 2002Publication date: May 1, 2003Inventors: Phyllis B. Siegel, Norman I. Bruckner
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Publication number: 20030073592Abstract: A surface which carries a material which is infected with prions is cleaned with an alkaline cleaning solution to remove as much proteinaceous material as possible from the surface. The cleaning agent is an alkaline cleaning agent which attacks prions remaining on the surface and which attacks prions removed from the surface during the cleaning step. After the cleaning solution is drained, a solution of surfactants, buffers, and heavy metal free corrosion inhibitors is circulated over the surface at 50°-60° C. The surfactants disperse and unclump the prion-contaminated material. A strong oxidant, preferably peracetic acid, is added to the solution to bring the peracetic acid concentration to 1,000-2,500 ppm. The peracetic acid or other strong oxidant attacks the prions, particularly the unclumped prion strands, deactivating the prions. After rinsing and drying, the surface may be wrapped in a microbe impermeable barrier and subjected to terminal sterilization, such as steam autoclaving.Type: ApplicationFiled: March 14, 2002Publication date: April 17, 2003Applicant: STERIS INC.Inventors: Gerald E. McDonnell, Herbert J. Kaiser, Kathleen M. Antloga, Jennifer A. Scocos
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Patent number: 6527872Abstract: An environmentally friendly decontaminant solution, which may be disposed of after use without posing significant environmental hazards, is formulated without molybdenum-based corrosion inhibitors and preferably is free of all heavy metals. A zeolite-based buffering system optionally replaces phosphate buffers for maintaining the pH of the decontaminant solution at an appropriate pH for effective antimicrobial decontamination. Molybdenum-free decontaminant solutions containing peracetic acid retain their peracetic acid levels, and thus their antimicrobial effectiveness, for longer periods than comparable solutions formulated with a molybdate corrosion inhibitor.Type: GrantFiled: October 10, 2001Date of Patent: March 4, 2003Assignee: Steris Inc.Inventors: Christopher M. Fricker, Brian C. Wojcieck, Stephanie A. S. Harrington, Iain F. McVey, George E. Grignol
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Patent number: 6524624Abstract: A two-part disinfecting systems, as well as disinfecting compositions and methods for making and using the same. The two-part disinfecting system contains a first part and a second part adapted to be mixed to yield an aqueous disinfecting composition, wherein the first part comprises a chlorite and the second part comprises an acid and an optional oxidizable colorant, and wherein the first part, the second part, or both the first and second parts comprise an alpha olefin sulfonate.Type: GrantFiled: May 16, 2001Date of Patent: February 25, 2003Assignee: Alcide CorporationInventors: Joseph Morelli, C. Cayce Warf, Jr., Maura Aldrich, Cecilia Moser Morse, Jean Wiley
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Patent number: 6521178Abstract: A method by which medical equipment, such as surgical scalpels, can be sanitized using a detergent or treating composition containing a surfactant and a solvent such as water is disclosed. The method involves taking the used medical equipment and contacting it with the treating composition, and subjecting both the equipment and composition to microwaves. The composition foams during microwaving and/or immerses the equipment such that microwave arcing is avoided, and such that the medical equipment is sanitized.Type: GrantFiled: November 1, 2000Date of Patent: February 18, 2003Assignee: The Procter & Gamble CompanyInventors: Alan Scott Goldstein, Howard David Hutton
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Publication number: 20020192731Abstract: A method and composition for sterilizing articles that are contaminated with infectious prion protein, such as surgical instruments, kitchen utensils, laboratory tools, etc., comprising the steps of: (a) heating the articles to be treated at a moderate temperature well below the incineration temperature of said infectious prion protein, wherein said moderate temperature is sufficient to enhance the proteolytic susceptibility of infective prion protein associated with said articles; and (b) exposing the heated articles to a proteolytic enzyme that is effective for at least partial reduction of the infective protein prion associated with said articles under said moderate temperature.Type: ApplicationFiled: October 26, 2001Publication date: December 19, 2002Inventor: Jason C. H. Shih
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Patent number: 6489276Abstract: The present invention concerns a composition and a method for cleaning instruments and the like. More particularly, it is concerned with compositions for removal of body fluid from surgical instruments and other surfaces such as operating tables and instrument trays.Type: GrantFiled: March 12, 2001Date of Patent: December 3, 2002Assignee: Ebiox LimitedInventor: Anthony Marston Gibbs
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Publication number: 20020173437Abstract: The present invention relates to methods for cleaning, rinsing, and/or antimicrobial treatment of medical carts, medical cages, and other medical instruments, devices or equipment. The method for cleaning employs a solid alkaline, for example a solid carbonate, cleaning composition for cleaning the medical cart, cage, instrument, device, or equipment. The method for rinsing employs a solid neutral or neutralizing rinse composition for rinsing the medical cart, cage, instrument, device, or equipment. The method for antimicrobial treatment employs a solid, for example a solid quaternary ammonium or solid halogen, antimicrobial composition, for antimicrobial treatment of the medical cart, cage, instrument, device, or equipment.Type: ApplicationFiled: March 23, 2001Publication date: November 21, 2002Inventors: Reid Rabon, Sally K. Swart, Denise Chandler, Terrence P. Everson
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Patent number: 6468472Abstract: A composition for cleaning and decontaminating medical devices such as dialyzers. A per-compound oxidant, for example, hydrogen peroxide (H2O2) and/or peracetic acid, is mixed with a buffer such as dipotassium hydrogen phosphate. The pH of the composition is between about 5-11. The composition effectively cleans the device, can achieve high level disinfection and sterilization of the device and is non-corrosive to plastics and adhesives used in the device.Type: GrantFiled: September 16, 1999Date of Patent: October 22, 2002Assignee: Metrex Research CorporationInventors: Zhi-Jian Yu, Stanley William Huth
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Patent number: 6448062Abstract: A composition for simultaneous cleaning and decontaminating a device. The composition is a per-compound oxidant in an amount effective for decontaminating the device and an enzyme in an amount effective for cleaning the device. The device may be a medical device such as an endoscope or kidney dialyzer and a plurality of devices can be cleaned using the same composition. The composition may additionally contain a corrosion inhibitor in an amount effective to prevent corrosion of a metal, a chelator, a buffer, a dye and combinations thereof.Type: GrantFiled: October 29, 1999Date of Patent: September 10, 2002Assignee: Metrex Research CorporationInventors: Stanley William Huth, Zhi-Jian Yu
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Patent number: 6436445Abstract: An oxidizing species is described herein as a reaction product through an in situ preparation combining a quaternary or protonizable nitrogen compound, an oxidant compound and a halide source at controlled proportions in an aqueous, non-aqueous, gel, aerosol, solid-phase or powdered media. The oxidizing species can be used to reduce microbial and viral populations on a surface or object or in a body or stream of water. The invention thus finds applications as a bleach, sanitizer, oxidant, or in any other application in which an oxidizing agent can be beneficially used alone or in a formulation.Type: GrantFiled: March 26, 1999Date of Patent: August 20, 2002Assignee: Ecolab Inc.Inventors: Robert D. P. Hei, Kim R. Smith, Polly D. Laugen, Shaun P. Kennedy
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Publication number: 20020111283Abstract: A chemical cleaning composition for cleaning electronic equipment and electric or electronic appliances, a device for the application of such composition, and a method of cleaning such equipment are disclosed.Type: ApplicationFiled: May 16, 2001Publication date: August 15, 2002Inventors: Andrea Argentieri, Sergio Rossi, Stefano Scialla, Murat Gokce Suer
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Patent number: 6423265Abstract: A method by which dental equipment, such as dental scalers, can be sanitized using a detergent or treating composition containing a surfactant and a solvent such as water is disclosed. The method involves taking the used dental equipment and contacting it with the treating composition, and subjecting both the equipment and composition to microwaves. The composition foams during microwaving and/or immerses the equipment such that microwave arcing is avoided, and such that the dental equipment is sanitized.Type: GrantFiled: November 1, 2000Date of Patent: July 23, 2002Assignee: The Procter & Gamble CompanyInventors: Alan Scott Goldstein, Howard David Hutton
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Patent number: 6387856Abstract: Antimicrobial detergent compositions especially suitable for manual diswashing comprise 0.001-2% iodine ions complexed with an amphoteric surfactant, 5-90% uncomplexed surfactant selected from the group consisting of anionic surfactants, nonionic surfactants, amphoteric surfactants and mixture thereof, and 5-50% water. The detergent compositions have pH of 7-10. Preferably at least a portion of the iodine ions are added as an iodine in the form of a compound selected from the group consisting of KI, NaI, KOI, NaOI and Ca(0I)2.Type: GrantFiled: March 19, 2001Date of Patent: May 14, 2002Assignee: Procter & Gamble CompanyInventors: Kofi Ofosu-Asante, Jeffrey Edward Boucher, Marcus Wayne Evans, David Robert Zint
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Patent number: 6387858Abstract: A method for treating medical instruments after a surgical procedure, which leaves blood or other body fluid on the instrument, includes applying a gel composition that inhibits the fluid from drying on the instruments. The gel composition is preferably a low viscosity gel exhibiting both sufficient flow and coating characteristics. The viscosity is preferably from about 700 to about 4,000 centipoise (cps), preferably around 3,000 cps. Applying a gel to post-surgical medical instruments contains and keeps protein containing fluids moist for extended periods of time and facilitates subsequent transportation, cleaning, and sterilization of such instruments.Type: GrantFiled: March 31, 2000Date of Patent: May 14, 2002Assignee: Steris Inc.Inventors: Sayed S. Shah, Shahin Keller, Mildred R. Bernando
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Patent number: 6376449Abstract: Acidic detergent composition comprising (a) protease I obtainable from Aspergillus aculeatus and having a pH optimum of 3 to 6 and (b) at least one nonionic surfactant and methods for using the composition for cleaning or washing a hard surface or laundry.Type: GrantFiled: March 23, 1999Date of Patent: April 23, 2002Assignee: Novozymes A/SInventor: Hans Sejr Olsen
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Patent number: 6376547Abstract: The invention relates to the use of an N,N′-substituted glycine or of an N,N′-substituted derivative of glycine (a) of the general formula I in which R1 is hydrogen or a straight-chain or branched, saturated or unsaturated alkyl, alkaryl or aralkyl radical having 1 to 30 C atoms, which can optionally contain heteroatoms such as O, S and N, R2 is a straight-chain or branched, saturated or unsaturated alkyl, alkaryl or aralkyl radical having 1 to 30 C atoms containing at least one primary, secondary or tertiary amino group and X is OH, OR3, NH2, NHR4, NR4R5 or O−M+, where R3, R4 and R5 are straight-chain or branched, saturated or unsaturated alkyl, alkaryl or aralkyl radicals which can be identical to or different from one another, and M is a metal cation, as active compound in a tuberculocidal disinfectant.Type: GrantFiled: January 15, 1999Date of Patent: April 23, 2002Assignee: L'Air Liquide SANTE (International)Inventors: Sabine Behrends, Andreas Dettmann, Michael Mohr
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Patent number: 6326340Abstract: Biofilm and debris can be removed from the interior and exterior surfaces of small bore tubing by passing an aqueous cleaning solution of water, one or more surfactants and preferably a source of hydrogen peroxide, optionally including small inert solid particles, together with a gas under pressure, to create a turbulent flow within the tubing that loosens the biofilm and debris so that they can be flushed from the tubing. When the exterior surfaces of tubing are to be cleaned, the tubing is inserted in a sleeve fitted with an adaptor that provides a pressure-tight seal between the tubing and the sleeve.Type: GrantFiled: September 29, 1998Date of Patent: December 4, 2001Inventors: Mohamed Emam Labib, Ching-Yue Lai
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Patent number: 6306219Abstract: The present invention is in the field of liquid or gel detergents. More specifically, the invention relates to a method for removing stains and/or odors and for disinfecting plastics, and other substrates by applying a liquid or gel detergent composition to the substrate and subjecting the substrate to microwaves. This method provides enhanced cleaning and improved stain removal on plastics, and other substrates. These cleaning compositions include a bleaching agent, preferably diacyl peroxide in a liquid or gel detergent formulation. These compositions in combination with the method of microwaving are also very effective in disinfecting and deodorizing substrates.Type: GrantFiled: January 25, 1999Date of Patent: October 23, 2001Assignee: The Procter & Gamble CompanyInventors: Kofi Ofosu-Asante, Howard David Hutton
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Patent number: 6241828Abstract: A method is disclosed for removing impurities from an elastomer intended for medical or pharmaceutical use, which includes a step of performing a first solvent extraction process on the elastomer by contacting the elastomer with a first extracting solvent in a non-supercritical state to substantially remove impurities from the elastomer, thereby leaving a residue of said first extracting solvent in the elastomer. The elastomer is there after subjected to a second solvent extraction process, by contacting the elastomer with a second extracting solvent, which is a supercritical fluid or a mixture of super critical fluids, in order to remove substantially reduce the concentration of the residue of the first extracting solvent remaining in the elastomer after the first solvent extraction process.Type: GrantFiled: September 25, 1998Date of Patent: June 5, 2001Assignee: Bespak, PLCInventor: Paul Barnes
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Patent number: 6235692Abstract: This invention relates to a foaming enzyme composition and delivery method useful for the cleaning and maintenance of moist conditions of the surfaces of soiled instruments, utensils and other devices prior to final cleaning and/or sterilization. The aqueous composition preferably consists of a combination of: (1) an enzyme cleaning solution, (2) foam-building ingredients; (3) a corrosion inhibitor; and (4) an antimicrobial agent. The composition may be dispensed from a pump spray as a stable foam which covers the surfaces of the instrument to be cleaned, and remains on the surface of the instrument for at least 30 minutes, and preferably until the instruments are finally cleaned and sterilized. The composition and delivery method of the present invention is particularly useful for the pre-cleaning of complex medical instruments such as endoscopes.Type: GrantFiled: September 20, 1999Date of Patent: May 22, 2001Assignee: Cottrell International, LLCInventors: John R. Scoville, Inna A. Novicova
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Patent number: 6232280Abstract: A cleaning composition includes a detectable substance which is relatively stable in the cleaning composition, for indicating whether the cleaning composition has been thoroughly removed from a vessel following a cleaning process. For pharmaceutical applications, the detectable substance is preferably a low-foaming surfactant that is detectable by high performance liquid chromatography at concentrations of around 10 ppm, or less. The surfactant is thus detectable in the same analytical procedure as are traces of pharmaceutical residues which have not been removed from the vessel. The analytical procedure is used to develop a cleaning protocol for future cleaning processes by determining the number of rinses needed for reducing the surfactant, and hence the cleaning product, and also the pharmaceutical residues, in the rinse water to predetermined acceptable levels.Type: GrantFiled: May 12, 1999Date of Patent: May 15, 2001Assignee: Steris CorporationInventors: Sayed Sadiq Shah, Herb J. Kaiser, Shahin Keller
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Patent number: 6228128Abstract: A method for antimicrobial treatment of microorganisms and/or viruses which involves treating the microorganisms and/or viruses with an effective amount of a fungal laccase and one or more enhancers in the presence of oxygen, the enhancers having the formula: wherein A, B and C are as defined in the specification.Type: GrantFiled: November 2, 1998Date of Patent: May 8, 2001Inventors: Charlotte Johansen, Anders Hjelholt Pedersen, Claus Crone Fuglsa{dot over (n)}g
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Patent number: 6200939Abstract: Biocompatible aqueous biocompatible cleaning and deodorizing compositions comprise (i) a biocompatible high osmotic pressure material, (ii) a Polycarboxylic acid salt, (iii) a polyhydric alcohol, (iv) a nonionic surfactant, and (v) an odor elimination agent, in water. The compositions are particularly suitable for cleaning and deodorizing medical devices which are designed for receiving and/or holding human waste. Preferably, the compositions are free of non-biocompatible or toxic components and have a relatively neutral pH, whereby the compositions are not harmful to human skin upon contact.Type: GrantFiled: June 18, 1999Date of Patent: March 13, 2001Assignee: National Research LabsInventor: Gerald L. Maurer
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Patent number: 6165281Abstract: A method of removing glass particles adhering to an inner wall of a glass cartridge of an injection syringe. A helical brush remover made of polyhexamethylene dodecanediamide or a helical stone remover made of aluminum oxide and titanium oxide is inserted into the inner wall of the glass cartridge. The helical brush or helical stone remover rubs against the inner wall of the glass cartridge to remove glass particles as water is sprayed onto the inner wall of the glass cartridge.Type: GrantFiled: February 23, 2000Date of Patent: December 26, 2000Assignee: Boo Yoon Tech, Inc.Inventor: Yeo Saeng Yoon
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Patent number: 6114292Abstract: A method of using a cleansing composition for cleansing a quantitatively aspirating sampling probe in an automated hematological analyzer is disclosed. The cleansing composition employed in the method is formulated to cleanse instantaneously on contact, and practically eliminates carry-over of hematological sample material, assaying reagents or of the cleansing composition itself. The cleansing composition is an acidic aqueous solution of pH 5.0 or less, including (1) a substance having a primary amino group; and (2) one or more nonionic surfactants selected from the group consisting of polyoxyethylene alkyl ether, polyoxyethylene alkyl phenyl ether, polyoxyethylene alkyl ester and polyoxyethylene sorbitan ester. Assay-material contaminated surfaces of the sampling probe are contacted with a cleansing amount of the cleansing composition.Type: GrantFiled: January 20, 2000Date of Patent: September 5, 2000Assignee: Sysmex CorporationInventors: Susumu Hoshiko, Miki Miyaji
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Patent number: 6096348Abstract: A low odor, aqueous, quick acting cold temperature disinfectant solution primarily useful for medical instruments to disinfect within a half hour or less. The composition comprises a reacting or synergistic combination of hydrogen peroxide and from about 1% to 30% by weight of a carboxylic acid/carboxylate salt buffered solution.Type: GrantFiled: July 29, 1998Date of Patent: August 1, 2000Assignee: Healthpoint, Ltd.Inventors: Norman A. Miner, William H. Woller, Edward L. Anderson, David W. Hobson
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Patent number: 6043205Abstract: A cleansing composition and method of use are disclosed for cleansing a quantitatively aspirating sampling probe in an automated hematological analyzer. The cleansing composition is formulated to cleanse instantaneously on contact, and practically eliminates carry-over of hematological sample material, assaying reagents or of the cleansing composition itself. The cleansing composition is an acidic aqueous solution of pH 5.0 or less, including (1) a substance having a primary amino group; and (2) one or more nonionic surfactants selected from the group consisting of polyoxyethylene alkyl ether, polyoxyethylene alkyl phenyl ether, polyoxyethylene alkyl ester and polyoxyethylene sorbitan ester.Type: GrantFiled: September 29, 1998Date of Patent: March 28, 2000Assignee: Sysmex CorporationInventors: Susumu Hoshiko, Miki Miyaji
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Patent number: 6040283Abstract: A high level disinfectant and sterilant solution that is useful to disinfect and sterilize heat-sensitive medical, dental and veterinary devices. The disinfectant solution is a two-part system for mixing just prior to use. The first part comprises glutaraldehyde and a phenolic chemical at a concentration of from about 0.5% w/w to 2.2% w/w, and a second separately contained part that is an activated buffer form of ethylene diamine tetraacetic acid (EDTA). The third part of the system is local potable tap water.Type: GrantFiled: July 8, 1998Date of Patent: March 21, 2000Assignee: Microchem Laboratory, Inc.Inventor: Norman A. Miner