Hydrophilic lubricity coating for medical devices comprising a hydrophobic top coat
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United States of America Patent
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Jan 23, 2001
Grant Date -
N/A
app pub date -
May 21, 1999
filing date -
May 21, 1999
priority date (Note) -
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Abstract
The present invention relates to a medical device for insertion into the body wherein the device has at least one surface which periodically comes into contact with a second surface. The first surface comprises an improved lubricious coating having a first hydrogel layer and a second hydrophobic top coating which prevents the hydrogel coating from prematurely absorbing too much moisture. The hydrophobic top coating comprises at least one hydrophilic surfactant which acts as a carrier to facilitate removal of the hydrophobic top coating upon entry into an aqueous environment.
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