Medical device and production thereof
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United States of America Patent
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Apr 6, 1999
Grant Date -
N/A
app pub date -
Aug 8, 1997
filing date -
Aug 9, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A medical device having good surface lubricity in the wet condition, high frictional durability and surface lubricity stability comprises a body and a smoothing or lubricating coating on a surface of the body. The coating is produced by applying a solution of a mixture of maleic anhydride high polymer and polyurethane having allophanate bond on a surface of the body, insolubilizing the resultant coating by heating, and then hydrophilizing the coating with a hydrophilizing agent such as ammonia, amine or alcohol.
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