FLEXIBLE ARTIFICIAL INTRAOCULAR LENS Russian patent published in 2005 - IPC

FIELD: medical engineering.

SUBSTANCE: device has optical and supporting parts manufactured from polymer material obtained on basis of polymerizing binary composition in which the composition ingresients portion is not less than 90% having i) one or more low molecular weight olygomers taken from oligourethane acrylate of general formula , where R₁=[-(CH₂)₄-O-]_n; [-CH(CH₃)-CH₂-O-]_n; [-CH₂-CH₂-O-]_n with n=10-80; M is the polyalkyleneglycole monoacrylate: CH₂=C(R₃)-C(O)-[O-CH(R₂)-CH₂-]_m m=1-10; R₂=H; CH₃; R₃= H; CH₃ and ii) one or more acrylic(methacrylic) acid derivatives taken from monoacrylate group of general formula H₂C-C(R₄)-C(O)-O-[-R₆-]-R₅, where R₅=OH; CH₃ R₆=[-(CH₂)₄-O-]_q; [-CH(CH₃)-CH₂-O-]_q; [-CH₂-CH₂-O-]_q [-CH₂]_q where q=1-10. After having exposed the composition to ultraviolet radiation action, flexible polymer material is produced with transmission coefficient being equal to 95% in wavelength band of 380-900 nm and refraction coefficient not less than 1.48.

EFFECT: no washing required for the eye lens; no residual monomers being found with ultraviolet and infrared spectroscopy applied.

5 cl, 1 tbl