Patent application number | Description | Published |
20100100009 | Device Having a Hydrophilic Coating Comprising P-Toluene-Sulfonamide and a Method for the Preparation Thereof - The present invention provides a medical device having a substrate polymer surface carrying thereon a hydrophilic coating comprising a cross-linked hydrophilic polymer and p-toluenesulfonamide, and a method for the preparation thereof. | 04-22-2010 |
20100247925 | Preparation of hydrophilic coatings utilizing a 1,3-dioxolane compound - A method for the preparation of a package comprising a packing means holding a medical device element of a substrate polymer, said substrate polymer having on at least a part of the surface thereof a hydrophilic coating, wherein the hydrophilic coating has been applied to the surface of said substrate polymer in the form of a solution of a hydrophilic polymer selected from the groups consisting of polyvinylpyrrolidone and polyethylene oxide in a vehicle comprising an optionally substituted 1,3-dioxolane compound, followed by evaporation of at least part of the vehicle and arranging said medical device element having the coating of the non-cross-linked hydrophilic polymer within a packing means, and sealing said packing means. | 09-30-2010 |
20110106061 | BUFFERED SWELLING MEDIA FOR RADIATION STERILIZED HYDROPHILIC COATINGS - To identify an alternative swelling medium with a hydrophilic polymer, we have observed that a swelling medium containing only 6% PEG 2000 and 0.9% NaCl failed to protect a hydrophilic coating during electron beam sterilization and subsequent storage at ambient and higher temperatures in an accelerated storage stability test. An unacceptably low dry-out time, below the specified 5 minutes, was obtained. However, when the biological buffer sodium citrate was added to a swelling medium containing PEG 2000, the performance of the stored catheters was as good as or better than the performance of catheters stored with the conventional swelling medium. | 05-05-2011 |
20130158151 | GELS FROM POLYSTYRENE-BASED PHOTOINITIATORS - The invention provides a method for the manufacture of a gel precursor. The method comprising the steps of combining a polymeric photoinitiator of the general formula (I): with one or more gel-forming polymers and/or gel-forming monomers to form a matrix composition, and curing the matrix composition obtained in the first step by exposing it to UV radiation. The invention also relates to the gel precursor itself, a method for the manufacture of a hydrophilic gel, the hydrophilic gel itself and a medical device comprising or coated with said gel. | 06-20-2013 |
20140271351 | WETTING MEDIA OF GLYCEROL AND BUFFER - Medical device comprising a hydrophilic coating, sterilised while in contact with a swelling medium comprising a low molecular polyol; and a separate buffer selected from the group consisting of carboxylic acids, amino acids, aminosulphonic acids and inorganic acids. The swelling media provides a stable pH after sterilisation and maintain the low friction of the coating. | 09-18-2014 |
20140363562 | PHOTO-CURING OF THERMOPLASTIC COATINGS - The present invention relates to a method for the preparation of a medical device element by means of extrusion or injection moulding and to medical devices comprising such extruded or injection moulded medical device elements. The medical device elements (e.g. tubes, wires, lines, stents, catheters, guides, endodontic instruments, needles, trocars for e.g. laparoscopic surgery, laparoscopic accessories, surgical instruments, guide wires) are characterized by a prefabricated shaped article or a thermoplastic substrate polymer having thereon a layer of a covalently cross-linked coating composition of a thermoplastic matrix polymer and a hydrophilic polymer. The method involves a coating composition comprising a thermoplastic matrix polymer, a hydrophilic polymer, and one or more photo-initiator(s), e.g. covalently linked to molecules of the thermoplastic matrix polymer and/or to molecules of the hydrophilic polymer. The coating composition is irradiated with UV or visible light so as to covalently cross-link said coating composition. | 12-11-2014 |
20150065998 | Catheter assembly comprising an aqueous solution of hydrogen peroxide - Provided is a catheter assembly with a dry and sterilized catheter with a hydrophilic coating covering at least a portion of the catheter in a first compartment, an aqueous swelling medium comprising an aqueous solution of hydrogen peroxide in a second compartment, and a packing structure comprising the first compartment and the second compartment. The two compartments are separate from each other but are in communication with each other such that when the second compartment is caused to release the aqueous swelling medium, the dry sterilized catheter is subjected to the aqueous swelling medium so as to wet the hydrophilic coating under sterile conditions. | 03-05-2015 |
Patent application number | Description | Published |
20100119833 | PHOTO-CURING OF THERMOPLASTIC COATINGS - The present invention relates to a method for the preparation of a medical device element by means of extrusion or injection moulding and to medical devices comprising such extruded or injection moulded medical device elements. The medical device elements (e.g. tubes, wires, lines, stents, catheters, guides, endodontic instruments, needles, trocars for e.g. laparoscopic surgery, laparoscopic accessories, surgical instruments, guide wires) are characterized by a prefabricated shaped article or a thermoplastic substrate polymer having thereon a layer of a covalently cross-linked coating composition of a thermoplastic matrix polymer and a hydrophilic polymer. The method involves a coating composition comprising a thermoplastic matrix polymer, a hydrophilic polymer, and one or more photo-initiator(s), e.g. covalently linked to molecules of the thermoplastic matrix polymer and/or to molecules of the hydrophilic polymer. The coating composition is irradiated with UV or visible light so as to covalently cross-link said coating composition. | 05-13-2010 |
20130115466 | PHOTO-CURING OF THERMOPLASTIC COATINGS - The present invention relates to a method for the preparation of a medical device element by means of extrusion or injection moulding and to medical devices comprising such extruded or injection moulded medical device elements. The medical device elements (e.g. tubes, wires, lines, stents, catheters, guides, endodontic instruments, needles, trocars for e.g. laparoscopic surgery, laparoscopic accessories, surgical instruments, guide wires) are characterized by a prefabricated shaped article or a thermoplastic substrate polymer having thereon a layer of a covalently cross-linked coating composition of a thermoplastic matrix polymer and a hydrophilic polymer. The method involves a coating composition comprising a thermoplastic matrix polymer, a hydrophilic polymer, and one or more photo-initiator(s), e.g. covalently linked to molecules of the thermoplastic matrix polymer and/or to molecules of the hydrophilic polymer. The coating composition is irradiated with UV or visible light so as to covalently cross-link said coating composition. | 05-09-2013 |