GAS PERMEABLE THROMBO-RESISTANT COATINGS AND METHODS OF MANUFACTURE

The present invention is directed to thrombo-resistant coatings for use with gas permeable biomedical devices and implants. The coatings include a siloxane surface onto which a plurality of amine functional groups have been bonded. Covalently bonded to the amine functional groups are a plurality of...

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Bibliographische Detailangaben
Hauptverfasser:	SANDERS, CLIFTON, G, SOLEN, KENNETH, A, WINTERS, SUZANNE, MORTENSEN, J., D, BERRY, GAYLORD
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G BEER BIOCHEMISTRY CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS THEREOF CULTURE MEDIA DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY DISINFECTION, STERILISATION, OR DEODORISATION OF AIR ENZYMOLOGY GENERAL PROCESSES OF COMPOUNDING HUMAN NECESSITIES HYGIENE MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METALLURGY METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL MICROBIOLOGY MICROORGANISMS OR ENZYMES MUTATION OR GENETIC ENGINEERING ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SEPARATION SPIRITS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING VINEGAR WINE WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention is directed to thrombo-resistant coatings for use with gas permeable biomedical devices and implants. The coatings include a siloxane surface onto which a plurality of amine functional groups have been bonded. Covalently bonded to the amine functional groups are a plurality of poly(ethylene oxide) chains, such that a single poly(ethylene oxide) chain is bonded to a single amine functional group. A quantity of at least one bioactive molecule designed to counteract a specific blood-material incompatibility reaction is covalently bonded to the poly(ethylene oxide) chains, such that a single bioactive molecule is coupled to a single polyethylene oxide chain. The methods of manufacturing the present invention include preparing a material having a siloxane surface onto which a plurality of amine functional groups have been bonded. This is preferably achieved by plasma etching with ammonia gas. The amine-containing siloxane surface is reacted with poly(ethylene oxide) chains terminated with functional groups capable of reacting with the amine groups on the siloxane surface. The material is then reacted with a solution of at least one bioactive molecule which counteracts a blood-material incompatibility reaction, such that a single bioactive molecule is coupled to a single poly(ethylene oxide) chain. The resulting siloxane surface is capable of resisting blood-material incompatibility reactions while maintaining high gas permeability.