US20050214443A1 - Method for sterilizing a medical device having a hydrophilic coating - Google Patents

Method for sterilizing a medical device having a hydrophilic coating Download PDF

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Publication number
US20050214443A1
US20050214443A1 US11/134,304 US13430405A US2005214443A1 US 20050214443 A1 US20050214443 A1 US 20050214443A1 US 13430405 A US13430405 A US 13430405A US 2005214443 A1 US2005214443 A1 US 2005214443A1
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Prior art keywords
medical device
hydrophilic polymer
hydrophilic
coating
solution
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Abandoned
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US11/134,304
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English (en)
Inventor
Niels Madsen
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Coloplast AS
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Coloplast AS
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Priority claimed from US09/862,030 external-priority patent/US6986868B2/en
Application filed by Coloplast AS filed Critical Coloplast AS
Priority to US11/134,304 priority Critical patent/US20050214443A1/en
Publication of US20050214443A1 publication Critical patent/US20050214443A1/en
Priority to US14/275,910 priority patent/US9138510B2/en
Abandoned legal-status Critical Current

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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
    • A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
    • A61L29/14—Materials characterised by their function or physical properties, e.g. lubricating compositions
    • A61L29/145—Hydrogels or hydrocolloids
    • 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
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • 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
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A61L2/10—Ultraviolet radiation
    • 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
    • A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
    • A61L29/08—Materials for coatings
    • A61L29/085—Macromolecular materials
    • 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
    • A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
    • A61L29/14—Materials characterised by their function or physical properties, e.g. lubricating compositions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/002—Packages specially adapted therefor ; catheter kit packages
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]

Definitions

  • the present invention relates generally to sterilization of medical devices having hydrophilic coatings and more specific to sterilization using radiation. Furthermore, the invention relates to a sterilized set comprising a medical device provided with a hydrophilic coating and a liquid for wetting the hydrophilic coating, a method for protecting the hydrophilic coating of a medical device having such coating during sterilization using radiation as well as a medical device having a hydrophilic coating said medical device showing, after sterilization using radiation, a prolonged water drain off time and reduced friction force.
  • WO 86/06284 (Astra Meditech Aktiebolag) discloses a wetting and storing device for a coated catheter in which the coating may be wetted using water or water comprising common salt and possibly bactericidal compounds or other additives.
  • GB Patent Application No. 2 284 764 discloses the application of a lubricious substance such as a water based jelly to the tip of a non-coated catheter prior to insertion into the urethra.
  • U.S. Pat. No. 3,648,704 discloses a disposable catheter apparatus in which a lubricant may be applied to the tip of the catheter prior to catherisation.
  • the substrate to be provided with a hydrophilic surface coating in the course of one or more process stages with intermediary drying and curing, is coated with one or more (mostly two) layers, which are brought to react with one another in various ways, e.g. by polymerization initiated by irradiation, by UV light, by graft polymerization, by the formation of interpolymeric network structures, or by direct chemical reaction.
  • Known hydrophilic coatings and processes for the application thereof are e.g. disclosed in Danish Patent No. 159,018, published European Patent Application Nos. EP 0 389 632, EP 0 379 156, and EP 0 454 293, European Patent No. EP 0 093 093 B2, British Patent No.
  • a hydrophilic surface coating is prepared on a substrate by applying, in two stages or in one combined stage, on the substrate a primer reactive with or adhesive to the substrate and then the actual hydrophilic surface layer which, in this case, comprises polyvinylpyrrolidone [PVP] as the active constituent.
  • PVP polyvinylpyrrolidone
  • the hydrophilic surface coating will have a tendency to become less slippery and to stick to surrounding tissues, and the removal of the medical device from the body may cause pain or damage the tissue. This is especially a problem when carrying out urodynamic examinations via a catheter.
  • European Patent No. EP 0 217 771 describes a method of forming a hydrophilic coating in order to retain the slipperiness in use for a longer period of time by applying a non-reactive hydrophilic polymer surface layer to a substrate, applying to the non-reactive hydrophilic surface polymer a solution comprising a solvent and above 2% (weight per volume) of an osmolality-increasing compound selected from the group consisting of mono and disaccharides, sugar alcohols, and non-toxic organic and inorganic salts, with the proviso that the osmolality-increasing compound is not a trihalogenide such as KI 3 (KI/I 2 ), and evaporating the solvent.
  • an osmolality-increasing compound selected from the group consisting of mono and disaccharides, sugar alcohols, and non-toxic organic and inorganic salts
  • EP 0 217 771 discloses that when wetting the catheters after drying, catheters having a coating of a non-toxic, osmolality increasing compound retaining their slipperiness for longer times than corresponding untreated surfaces i.e. coated catheters dry more slowly. However EP 0 217 771 is silent with respect to storing the coated catheters in the wetting solution and any type of sterilization or problems in connection herewith.
  • WO 94/16747 discloses a hydrophilic coating with improved retention of water on a surface, especially a surface of a medical device such as a urethra catheter, prepared by applying to the surface in one or more process steps at least one solution of components that will combine to form the hydrophilic coating. During the final step, the surface is coated with an osmolality promoting agent which is dissolved or emulgated in the solution or in the last solution to be applied when forming the hydrophilic coating.
  • WO 94/16747 does not disclose cross-linked coatings.
  • WO 89/09246 discloses solid shaped structures having a surface coated with crosslinked hydrophilic polymer, the coating being durable and exhibiting a low coefficient of friction when wet. It is stated that the degree of crosslinking is critical and is to be controlled by the operating conditions chosen as too much crosslinking reduces or completely eliminates the low friction surface property, and too little crosslinking negatively affects the durability of the coating. WO 89/09246 does not disclose the presence of a water soluble or osmolality-increasing compound in the coating.
  • WO 98/19729 discloses catheter packages wherein the catheter is stored in the wetting medium comprising, e.g., an aqueous solution of NaCl, but WO 98/19729 does not mention a wetting solution comprising a hydrophilic polymer.
  • the present invention relates to a method for sterilizing a medical device comprising a hydrophilic coating using radiation.
  • the invention relates to a sterilized set comprising a medical device provided with a hydrophilic coating and an aqueous liquid for wetting the hydrophilic coating.
  • the invention relates to a method of protecting the hydrophilic coating of a medical device having such coating during sterilizing using radiation.
  • the invention further relates to a medical device comprising a hydrophilic coating said medical device showing, after sterilization using radiation, a prolonged water drain off time and a reduced friction force.
  • the invention yet further relates to methods for preparing sterilized catheters having hydrophilic coatings.
  • the present invention relates to a method for sterilizing a medical device comprising a hydrophilic coating using radiation said method comprising the steps of bringing the medical device having such coating in contact with an aqueous liquid for wetting the hydrophilic coating, said liquid comprising a solution of a hydrophilic polymer and sterilizing the device by applying a sufficient amount of radiation.
  • hydrophilic polymers for example polyvinylpyrrolidone or copolymers containing N-vinylpyrrolidone, poly(meth)acrylic acid or copolymers containing (meth)acrylic acid or (meth)acrylic acid esters, polyacrylamides, polyvinylalcohol and copolymers of partially saponified vinylacetate copolymers, polyethylenglycol, polyvinylmethylether, polyvinylmethylether-maleic anhydride and copolymers containing maleic-anhydride or maleic-acidesters or copolymers containing vinylmethyl-ether, or copolymers thereof, or water soluble polysaccharides or derivatives thereof such as carboxymethylcellulose (CMC) or hydroxyethylcellulose or Xanthane or a derivative thereof to the liquid for wetting a hydrophilic coating and that these compounds also protect these properties during exposure to steriliz
  • Suitable hydrophilic polymers for the wetting agent may be mixtures of the preferred species stated above.
  • Dissolved hydrophilic polymer chains in the aqueous liquid penetrates physically bound or crosslinked coatings and prevent further crosslinking during irradiation.
  • Dissolved polymers may be chemically bonded to the hydrophilic coating during irradiation in the aqueous liquid. This gives rise to a thicker layer of coating contributing to a higher capacity of retaining water.
  • the hydrophilic polymer is a synthetic polymer and especially that the hydrophilic polymer is at least compatible with and preferably of the same type as the hydrophilic polymer of the coating.
  • polysaccharides selected from the group consisting of cellulose derivatives and xanthans. Although polysaccharides show a tendency of break down on sterilisation using radiation, these compounds have still proven effective in giving a long retention time, a low friction. Normally such compounds show a very pronounced thickening effect in water and are used in relatively low amounts.
  • the cellulose derivative is CMC or a derivative thereof.
  • CMC is suitably used in an amount from 0.005 to 3.0%, depending on the molecular weight and degree of substitution of the polymer preferably about 0.5% giving very good results.
  • the amount used is normally in the range from 0.005 to 1%, preferably about 0.15%.
  • the hydrophilic polymer is a polyvinyl pyrrolidone (PVP).
  • the amount of polyvinyl pyrrolidone to be used according to the invention may vary and depends i.a. on the molecular weight of the specific PVP. The higher the molecular weight, the higher is the tendency of gelling. Thus, the use of higher amounts of low molecular weight PVP gives an effect similar to the use of lower amounts of a higher molecular weight PVP.
  • the amount of a PVP of a given molecular weight PVP to be used is easily determined by the skilled in the art by routine experiments testing the water retention. When using a PVP having a relatively low molecular weight above 1000 and preferably above 5000, an amount of 6% by weight has proven to be suitable giving a long retention time, a low friction and no problems with gelling.
  • hydrophilic polymer not forming cross-links with the coating into the coating and to wet or store the medical device in water or saline.
  • Saline or another non-toxic osmolality increasing agent is preferably present in the physiological range.
  • saline is preferably present in an amount of 0.9%
  • the invention relates to a sterilized set comprising a medical device provided with a hydrophilic coating and an aqueous liquid for wetting the hydrophilic coating wherein said device is in contact with the aqueous liquid, wherein said set has been sterilized using radiation while in contact with said liquid comprising a solution of a hydrophilic polymer.
  • the aqueous liquid is placed in the package also comprising the medical device provided with a hydrophilic coating.
  • the catheter is permanently wetted by the wetting liquid and thus ready to use.
  • a set may be of the kind disclosed in WO 98/19729.
  • wetting liquids of the kind disclosed above it is possible to provide a catheter which is permanently wetted by the wetting liquid and thus ready to use and which may be sterilised by irradiation or autoclaving and which will retain the water retention capability and thus low coefficient of friction when the coatings are stored in water for an extended period of time.
  • Sterilization using radiation is normally carried out using beta or gamma radiation.
  • the invention relates in a third aspect to a method of protecting the hydrophilic coating of a medical device having such coating during sterilizing using radiation, characterized in that the coating is brought into contact with an aqueous solution comprising a hydrophilic polymer and exposed for the radiation while in contact with the aqueous solution.
  • the invention in a fourth aspect, relates to a medical device comprising a hydrophilic coating said medical device showing, after sterilization using radiation, a water drain off time >3 minutes and a friction force of ⁇ 0.05 N when testing a 10 cm tube having the hydrophilic coating fixed on a stainless steel plate with two stainless steel rods as shown in ASTM 1894-93 for both physically bonded hydrophilic coatings of the type disclosed in WO 94/16747 and for chemically cross-linked coatings of the types disclosed in i.a. WO 98/58988, WO 98/58989, and WO 98/58990.
  • the invention relates to a method of preparing a sterilized catheter having a crosslinked two-layer hydrophilic coating comprising the steps of
  • the invention relates to a method of preparing a sterilized catheter having a crosslinked hydrophilic coating with unsaturated poly(methyl vinyl ether/maleic anhydride)/hydroxyethylmethacrylate(HEMA) prepolymers comprising the steps of
  • the invention relates to a method of preparing a sterilized catheter having a cross-linked single layer of hydrophilic coating comprising the steps of
  • the wetting liquid comprises an antibacterial agent such as a silver salt, e.g., silver sulphadiazine, an acceptable iodine source such as povidone iodine (also called polyvinylpyrrolidone iodine), chlorhexidine salts such as the gluconate, acetate, hydrochloride or the like salts or quaternary antibacterial agents such as benzalkonium chloride or other antiseptics or antibiotics.
  • an antibacterial agent such as a silver salt, e.g., silver sulphadiazine, an acceptable iodine source such as povidone iodine (also called polyvinylpyrrolidone iodine), chlorhexidine salts such as the gluconate, acetate, hydrochloride or the like salts or quaternary antibacterial agents such as benzalkonium chloride or other antiseptics or antibiotics.
  • Antibacterial agents reduces the risk of infection, especially when performing ur
  • the wetting liquid may according to the invention comprise an osmolality increasing agent such as urea, sodium chloride and/or any salt or organic low molecular weight compound being physiological acceptable and non-irritating for adjusting the ion strength of the coating approximately to the physiological range, the coating preferably being isotonic in use.
  • an osmolality increasing agent such as urea, sodium chloride and/or any salt or organic low molecular weight compound being physiological acceptable and non-irritating for adjusting the ion strength of the coating approximately to the physiological range, the coating preferably being isotonic in use.
  • the added amount may vary within very broad limits.
  • the wetting liquid of the invention may also, if desired, comprise plasticizers for the hydrophilic coating such as diethylene glycol, glycerol, phthalates, sorbitol or the like.
  • Indicators or buffers for pH or antibodies may also be enclosed in the wetting liquid of the invention.
  • compositions such as antioxidants or preservatives such as anti microbial agents or antithrombogenic agents may be added to the composition.
  • Polyvinylpyrrolidone PVP K 90 available from ISP Inc. having a molecular weight 1,300,000 according to ISP.
  • Polyvinylpyrrolidone Plasdone K-25 available from ISP Inc. having a molecular weight 34,000 according to ISP.
  • Poly(methyl vinyl ether/maleic anhydride) is available as the Gantrez AN series of copolymers from ISP
  • Ethanol Absolute Alcohol.
  • Gamma butyrolactone Gamma-butyrolactone from International Specialty Products.
  • UV catalyst ESACURE KIP 150 from Lamberti SpA
  • the tubes or catheters were cut in lengths of 10 cm and fixed on a stainless steel plate with two stainless steel rods as shown in ASTM D 1894-93.
  • the rods had diameters comparable with the inner diameter of the tubes or catheters to keep their shape even when heavy sledges were placed upon them.
  • the friction was determined after wetting after dipping the specimen in wetting liquid for 1 minute.
  • the force for pulling the sledge was measured in Newtons.
  • Water retention was determined by subjectively determining the time for the liquid to drain off after which the coating is dry using a stop watch.
  • PVP K 90 and 0.05 part of ESACURE KIP 150 were dissolved in 94.95 parts of an ethanol/gamma butyrolactone solvent mixture.
  • PVC-catheters were dipped in the solution and dried 1 minute at ambient temperature and then dipped in a PVP-solution containing 5 parts of PVP, 1 part of urea and 94 parts of an ethanol/gamma butyrolactone (85/15) solvent mixture.
  • the catheters were further dried for 30 minutes at 70° C. and exposed to UV-light having a wave length range between 200 and 300 nm. for 5 minutes.
  • a 50:50 primer mixture with 5% solids was prepared by dissolving a medical grade polyurethane and the Poly(methyl vinyl ether/maleic anhydride)/HEMA unsaturated prepolymer in a 50:50 mixture of THF and acetone and was coated on PVC catheters as a primer by dipping in a manner known per se.
  • the catheters were dipped in the solution of poly(methyl vinyl ether/maleic anhydride)/HEMA unsaturated prepolymer in acetone for applying a top coat, dried and exposed to 5 M rads from a high energy electron beam source.
  • the cross-linked coatings were hydrolyzed and neutralized in a sodium hydrogen carbonate buffer solution for one hour before drying.
  • a top coat and a primer solution were prepared as in Example b. To the solutions was added 1% by weight of the solid Darocure® 1173, a UV photo-initiator obtainable from Ciba Geigy.
  • PVC catheters were dipped in the primer solution, dried for 30 minutes and dipped in the top coat solution also containing 1% by weight of the solid of Darocure® 1173 and dried for further 30 minutes. Then, the coating was cross-linked by exposure to UV light.
  • cross-linked coatings were then hydrolyzed and neutralized in a sodium hydrogen carbonate buffer solution for one hour before drying.
  • PVP K 90 5 parts was dissolved in 95 parts of a ethanol/gamma butyrolactone (85/15) solvent mixture. PVC catheters were dipped in the solution, dried for 30 minutes at 70° C. and exposed to a UV light having a wave length between 200 and 300 nm for 6 minutes.
  • the catheter was lubricious in wet condition and had a high abrasion resistance.
  • a cross-linked coating prepared according to Example a and the following commercial catheters: an EasiCath® catheter, from Coloplast A/S, a LoFric® catheter from Astra AB, a PuriCath® catheter from Maersk Medical, an AquaCath® catheter from EMS, and a Uro-flo Silky catheter from Simcare were tested for determination of the water retention time and the friction.
  • the coated catheters were compared to an uncoated raw catheter having no hydrophilic coating.
  • All catheters were stored in a 6% solution of PVP Plasdone K-25 or in saline and sterilized by irradiation, and water reretention of the coatings and the force of friction were determined as described above.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Epidemiology (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
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  • Biomedical Technology (AREA)
  • Anesthesiology (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Dispersion Chemistry (AREA)
  • Materials For Medical Uses (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
US11/134,304 1998-11-20 2005-05-23 Method for sterilizing a medical device having a hydrophilic coating Abandoned US20050214443A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US11/134,304 US20050214443A1 (en) 1998-11-20 2005-05-23 Method for sterilizing a medical device having a hydrophilic coating
US14/275,910 US9138510B2 (en) 1998-11-20 2014-05-13 Sterilized ready-to-use catheter

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DKPA199801534 1998-11-20
DKPA199801534 1998-11-20
US21830598A 1998-12-22 1998-12-22
PCT/DK1999/000641 WO2000030696A1 (en) 1998-11-20 1999-11-19 A method for sterilising a medical device having a hydrophilic coating
US09/862,030 US6986868B2 (en) 1998-11-20 2001-05-18 Method for sterilizing a medical device having a hydrophilic coating
US11/134,304 US20050214443A1 (en) 1998-11-20 2005-05-23 Method for sterilizing a medical device having a hydrophilic coating

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US09/862,030 Division US6986868B2 (en) 1998-11-20 2001-05-18 Method for sterilizing a medical device having a hydrophilic coating

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US14/275,910 Continuation US9138510B2 (en) 1998-11-20 2014-05-13 Sterilized ready-to-use catheter

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US14/275,910 Expired - Lifetime US9138510B2 (en) 1998-11-20 2014-05-13 Sterilized ready-to-use catheter

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US (2) US20050214443A1 (es)
EP (4) EP1131112B2 (es)
JP (1) JP4602556B2 (es)
CN (1) CN1291762C (es)
AT (1) ATE232750T1 (es)
AU (1) AU754585B2 (es)
CA (1) CA2349198C (es)
DE (1) DE69905487T3 (es)
DK (2) DK1131112T4 (es)
ES (2) ES2190289T5 (es)
HU (1) HU226497B1 (es)
PL (1) PL347727A1 (es)
PT (1) PT2065061E (es)
WO (1) WO2000030696A1 (es)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060263404A1 (en) * 2003-02-26 2006-11-23 Nielsen Bo R Assembly for the preparation of a medical device having a coating comprising hydrogen peroxide
US20080044553A1 (en) * 2006-08-15 2008-02-21 Abigail Freeman Sterilization methods for medical devices
US20080292496A1 (en) * 2005-05-02 2008-11-27 Niels Jorgen Madsen Method for Sterilising a Medical Device Having a Hydrophilic Coating
US20090012208A1 (en) * 2003-10-07 2009-01-08 Niels Joergen Madsen Medical Device Having a Wetted Hydrophilic Coating
US20110058982A1 (en) * 2008-05-16 2011-03-10 Terumo Kabushiki Kaisha Method for radiation sterilization of hydrophilic polymer-coated medical device
US20110106061A1 (en) * 2008-06-16 2011-05-05 Bo Rud Nielsen Buffered swelling media for radiation sterilized hydrophilic coatings
US8328792B2 (en) 2005-10-27 2012-12-11 C. R. Bard, Inc. Enhanced pre-wetted intermittent catheter with lubricious coating
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ATE232750T1 (de) 2003-03-15
EP1252898A3 (en) 2003-02-05
CN1326366A (zh) 2001-12-12
JP2002530158A (ja) 2002-09-17
DE69905487D1 (de) 2003-03-27
EP2065061A2 (en) 2009-06-03
DE69905487T3 (de) 2007-06-06
JP4602556B2 (ja) 2010-12-22
CA2349198A1 (en) 2000-06-02
EP1961429A3 (en) 2008-09-24
US20140249489A1 (en) 2014-09-04
EP1131112A1 (en) 2001-09-12
CN1291762C (zh) 2006-12-27
HUP0104136A2 (hu) 2002-03-28
DK2065061T3 (da) 2015-06-22
PL347727A1 (en) 2002-04-22
CA2349198C (en) 2010-10-19
EP1131112B2 (en) 2006-11-29
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EP2065061A3 (en) 2009-08-26
PT2065061E (pt) 2015-07-30
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DK1131112T3 (da) 2003-06-16
AU1374600A (en) 2000-06-13
AU754585B2 (en) 2002-11-21
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US9138510B2 (en) 2015-09-22
EP1131112B1 (en) 2003-02-19
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DE69905487T2 (de) 2003-12-04
WO2000030696A1 (en) 2000-06-02
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ES2190289T5 (es) 2007-08-01
HU226497B1 (en) 2009-03-02

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