Flexible intraocular implant formed in one piece

Details Flexible intraocular implant formed in one piece Flexible intraocular implant formed in one piece

A - Human Necessities

61

F

A61F 2/16 (2006.01)

Patent

CA 2253359

The invention concerns an intraocular implant comprising a substantially circular optical part (10) and two curved haptic loops (12, 14) each with a first connecting end (12a, 14a) at the periphery of the optical part and a free second end (12b, 14b) intended to come to rest on the internal wall of the eye, characterized in that the optical part (10) and the haptic loops (12, 14) are made of the same flexible material, the elastic modulus thereof being in a range between 0.25 MPa and 1 MPa, and in that the width of each loop decreases from its connecting end to its free end such that the ratio between the bending moment variation and the inertia moment variation at two separate points (P1, P2) of the loop is substantially constant.

L'invention concerne un implant intraoculaire comprenant une partie optique (10) de forme sensiblement circulaire et deux anses haptiques (12, 14) courbes présentant chacune une première extrémité de raccordement (12a, 14a) à la périphérie de la partie optique et une deuxième extrémité (12b, 14b) libre destinée à venir en appui sur la paroi interne de l'oeil. La partie optique (10) et les anses haptiques (12, 14) sont réalisées avec un même matériau souple dont le module d'élasticité est compris entre 0,25 MPa et 1 MPa et en ce que la largeur de chaque anse va en diminuant de son extrémité de raccordement à son extrémité libre de telle manière que le rapport entre la variation du moment de flexion et la variation du moment d'inertie en deux points distincts (P1, P2) de l'anse soit sensiblement constante.

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