Ocular implants and methods for their manufacture

B - Operations – Transporting – 05 – D

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B05D 3/06 (2006.01) A61F 2/16 (2006.01) A61L 27/00 (2006.01) A61L 27/16 (2006.01) A61L 27/34 (2006.01) B05D 7/02 (2006.01) G02B 1/04 (2006.01) A61F 2/00 (2006.01)

Patent

CA 2052783

An improved method for modifying the surface of an ocular implant material by the gamma or electron beam irradiation induced chemical graft coating thereon of a monomer comprising N-vinyl-pyrrolidone, 2-hydroxyethyl-methacrylate or a mixture of the two to form a hydrophilic graft polymer coating, the improvement comprising pre-soaking the ocular implant material in a monomer or a solution comprising a monomer prior to conducting the gamma- or electron beam-irradiation induced graft polymerization in a second solution of monomer.

Méthode améliorée pour modifier la surface d'un matériau pour implant oculaire en revêtant ce dernier, par polymérisation chimique par greffe induite par irradiation gamma ou par faisceau électronique, d'un monomère comprenant du N-vinyl-pyrrolidone, du 2-hydroxyéthylméthacrylate ou un mélange des deux pour former un revêtement de polymère greffé hydrophile, l'amélioration comprenant la pré-imbibition du matériau pour implant oculaire dans un monomère ou une solution comprenant un monomère avant la réalisation de la polymérisation par greffe induite par irradiation gamma ou par faisceau électronique dans une seconde solution de monomère.

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