Surface modified surgical instruments, devices, implants, contact lenses and the like

摘要

An improved method for modifying the plastic surfaces of articles adapted for contacting living tissue by the gamma or electron beam irradiation induced chemical graft coating thereon of a monomer comprising N-vinylpyrrolidone, 2-hydroxyethylmethacrylate 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 a monomer.