Patent EA-003287-B1 (EA)
Title: An iris-pupil complex for the artificial eye and method for manufacturing thereof
IPC: A61F2/14
Filed: 2001-06-20
Abstract: 1.An iris-pupil complex for the artificial eye formed from pressed multicolored plastic layers consists of a black pupil and a color iris with a spherical front surface, differing that the complex back surface has a ring-shaped cavity formed as a tore with a cylindrical pupil protruding up to 1.5-3 mm in its center, the back surface sides coupled with the spherical front surface by means of 0.8-1.5 mm edge having a face on the front spherical surface at angle of 10-20 degree to the complex center axis, that an iris color is provided by the color pattern on the back tore surface. 2. The iris-pupil complex of claim 1, differing that the cylindrical black pupil in a point of transferring into the iris has a thin 0.2-0.4 mm interlayer of the transparent disc along the pupil diameter. 3. A method of manufacture of the iris-pupil complex for the artificial eye consists of pressing the color disc layers packet and after-treatment of the front and back complex surfaces, differing that during the mechanical treatment firstly an eye cylinder having height of 1.5-3 mm and diameter of 3-4 mm is turned from the black layer, the back surface is formed by turning a smooth tore-shaped recess from the pupil cylinder to the disc edge in the transparent disc with a special figured cutter, thereafter the front spherical complex surface with the radius of 8 mm is formed by turning and there is an edge having a thickness of 0.8-1.5 mm between front and back surfaces, a face is turned on the spherical surface at angle of 10-20 degree to the complex center axis, thereafter an iris pattern is formed on the back tore-shaped surface. 4. The iris-pupil complex for the artificial thin-walled eye formed from pressed multicolored plastic layers consists of a black pupil and a color iris with a spherical front surface, differing that a concave black disc-pupil having a thickness of 0.4-0.5 mm and diameter of 3-4 mm is formed on the back concave complex surface, between the front and back complex surfaces it is formed an edge with a thickness of 0.8-1.5 mm, having a face on the front spherical surface at angle of 10-20 degree to the complex center axis, that an iris color is provided by the color pattern on the back tore surface. 5. The method of manufacture of the iris-pupil complex for the artificial thin-walled eye consists of pressing the color disc layers packet and mechanical treatment of the front and back complex surfaces, differing that the pressing of the black layer is performed on the concave transparent disc surface having a radius of curvature of 12 mm, during mechanical treatment it is firstly formed the back complex surface by turning a concave spherical surface with the radius of 13 mm on the black layer, a black concave disc-pupil still having thickness of 0.4-0.5 mm and diameter of 3-4 mm, thereafter it is turned the front spherical complex surface with radius of 10 mm, an edge between them is equal to 0.8-1.5 mm, a face is turned on the front spherical surface at angle of 10-20 degree to the complex center axis, thereafter an iris pattern is formed on the back concave complex surface.