Medical device with hydrophilic coating
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United States of America Patent
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Oct 7, 2003
Grant Date -
N/A
app pub date -
Jul 31, 1997
filing date -
Jun 26, 1996
priority date (Note) -
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Abstract
Method for the manufacture of a medical device which presents a hydrophilic surface coated elongate shaft for insertion into a body passageway comprising the steps of having the elongate shaft formed from a thermoplastic elastomer material selected from the group consisting of a polyether block amide and a styrene block copolymer and forming the hydrophilic coating on the elongate shaft by applying sequentially to the surface of the elongate shaft a solution comprising between 0.05 to 40% (weight to volume) of an isocyanate compound and a solution containing between 0.5 and 50% (weight to volume) of polyvinylpyrrolidone and curing at an elevated temperature.
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