Medical devices having antimicrobial coatings thereon
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United States of America Patent
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Issued Date -
Jan 13, 2005
app pub date -
Dec 10, 2003
filing date -
Dec 19, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention provides a medical device, preferably a contact lens, which a core material and an antimicrobial metal-containing LbL coating that is not covalently attached to the medical device and can impart to the medical device an increased hydrophilicity. The antimicrobial metal-containing coating on a contact lens of the invention has a high antimicrobial efficacy against microorganisms including Gram-positive and Gram-negative bacterial and a low toxicity, while maintaining the desired bulk properties such as oxygen permeability and ion permeability of lens material. Such lenses are useful as extended-wear contact lenses. In addition, the invention provides a method for making a medical device, preferably a contact lens, having an antimicrobial metal-containing LbL coating thereon.
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