Method for applying polymeric lens coating

Details Method for applying polymeric lens coating Method for applying polymeric lens coating

C - Chemistry, Metallurgy

08

J

C08J 7/04 (2006.01) A61L 27/34 (2006.01) G02B 1/04 (2006.01)

Patent

CA 2420861

The present invention is directed toward the renewable surface treatment of medical devices such as contact lenses and medical implants. In particular, the present invention is directed to a method of modifying the surface of a medical device to increase its biocompatibility or hydrophilicity by coating the device with a removable hydrophilic polymer by means of reaction between reactive functionalities on the hydrophilic polymer which functionalities are complementary to reactive functionalities on or near the surface of the medical device at reaction temperatures of less than about 55 ~c.

La présente invention concerne le traitement de surface renouvelable de dispositifs médicaux tels que des lentilles de contact et des implants chirurgicaux. En particulier, la présente invention concerne un procédé permettant de modifier la surface d'un dispositif médical afin d'en améliorer la biocompatibilité ou l'hydrophilicité par l'application, sur ledit dispositif, d'un polymère hydrophile pouvant être retiré, au moyen d'une réaction entre des groupes fonctionnels réactifs sur le polymère hydrophile, lesdits groupes fonctionnels étant complémentaires des groupes fonctionnels réactifs sur la surface du dispositif médical, ou à proximité de cette dernière, à des températures de réaction de moins de 55·c environ.

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