| 摘要 |
A non thrombogenic quaternary ammonium-heparin complex coating for a medical article comprising an amount of at least 50% by weight of one or more cationic quaternary ammonium organic salts having the following formula: <IMAGE> Wherein R1 is an alkyl group having from about 14 to about 22 carbons; R2 is an alkyl group having from about 1 to about five carbons; R3 is an alkyl group having from about 1 to about five carbons.
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