25-07-2013 дата публикации
Номер: US20130189190A1
Принадлежит:
Lutonix, Inc.
The invention relates to a coated medical device for rapid delivery of a therapeutic agent to a tissue in seconds to minutes. The medical device has a layer overlying the exterior surface of the medical device. The layer contains a therapeutic agent, a contrast agent, and an additive. 1. A medical device for delivering a therapeutic agent to a tissue , the device comprising a layer overlying an exterior surface of the medical device , the layer comprising a therapeutic agent , a contrast agent , and an additive , wherein:the additive comprises a hydrophilic part and a drug affinity part;the drug affinity part is at least one of a hydrophobic part, a part that has an affinity to the therapeutic agent by hydrogen bonding, and a part that has an affinity to the therapeutic agent by van der Waals interactions;the additive is water-soluble;the additive is at least one of a surfactant and a chemical compound; andthe contrast agent is chosen from iobitridol, iohexyl, iomeprol, iopamidol, iopentol, iopromide, ioversol, ioxilan, iotrolan, iodixanol, ioxaglate, and their derivatives.2. The medical device of claim 1 , wherein the chemical compound is chosen from amino alcohols claim 1 , hydroxyl carboxylic acid claim 1 , ester claim 1 , anhydrides claim 1 , hydroxyl ketone claim 1 , hydroxyl lactone claim 1 , hydroxyl ester claim 1 , sugar phosphate claim 1 , sugar sulfate claim 1 , ethyl oxide claim 1 , ethyl glycols claim 1 , amino acids claim 1 , peptides claim 1 , proteins claim 1 , sorbitan claim 1 , glycerol claim 1 , polyalcohol claim 1 , phosphates claim 1 , sulfates claim 1 , organic acids claim 1 , esters claim 1 , salts claim 1 , vitamins claim 1 , combinations of amino alcohol and organic acid claim 1 , and their substituted molecules.3. The medical device of claim 1 , wherein the surfactant is chosen from ionic claim 1 , nonionic claim 1 , aliphatic claim 1 , and aromatic surfactants claim 1 , PEG fatty esters claim 1 , PEG omega-3 fatty esters claim 1 , ether ...
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