Patent ID: 8604073

Claim:
A medical device having an antimicrobial composition comprising: a medical device; a cationic surfactant derived from the condensation of fatty acids and esterified dibasic amino acids, according to the following formula: where X is Br, CI, or HSO 4 ; R 1 is a linear alkyl chain from a saturated fatty acid or hydroxyacid having from 8 to 14 carbon atoms bonded to the alpha-amino acid group through an amidic bond; R 2 is a linear or branched alkyl chain from 1 to 18 carbon atoms or an aromatic group; R 3 is one of the following: and n ranges from 0 to 4; and at least one antibiotic selected from the group consisting of penicillins, cephalosporins, carbepenems, other beta-lactam antibiotics, aminoglycosides, amphenicols, ansamycins, macrolides, lincosamides, glycopeptides, polypeptides, tetracylines, chloramphenicol, quinolones, fucidins, sulfonamides, sulfones, nitrofurans, diaminopyrimidines, trimethoprims, rifamycins, oxalines, streptogramins, lipopeptides, ketolides, polyenes, azoles, echinocandins, and any combination thereof.