Flexible intraocular implant with circular haptic

Details Flexible intraocular implant with circular haptic Flexible intraocular implant with circular haptic

A - Human Necessities

61

F

A61F 2/16 (2006.01)

Patent

CA 2696564

A flexible intraocular implant (10) for placing in a capsular bag, the implant comprising an optical portion (12) of substantially circular shape that presents an optical axis (XX'), and a haptic portion (14) connected to the periphery of the optical portion, said haptic portion (14) comprising: .cndot. a contact portion (16) constituted by n (n>=2) contact elements (18) in the form of circular arcs all having the same radius of curvature and each having an outer edge (20) that is in contact with the equatorial zone of the capsular bag, and n connection elements (22), each connection element being connected via respective ends to two consecutive contact elements, presenting a deformable curved shape, and presenting stiffness that is much less than that of the contact elements; and .cndot. n deformable connection arms (24) each connected to the periphery (12a) of the optical portion and to a contact element (18).

Implant intraoculaire (10) souple destiné à être placé dans un sac capsulaire, comprenant une partie optique (12) de forme sensiblement circulaire et présentant un axe optique (xx´) et une partie haptique (14) raccordée à la périphérie de la partie optique, ladite partie haptique (14) comprend : -une partie de contact (16) constituée par n éléments de contact (n=2) (18) en forme d'arcs de cercle ayant tous le même rayon de courbure et dont le bord externe (20) est au contact de la zone équatoriale du sac capsulaire et n éléments de raccordement (22), chaque élément de raccordement étant raccordé à une extrémité de deux éléments de contact consécutifs, ayant une forme incurvée déformable et présentant une rigidité très inférieure à celle des éléments de contact; et -n bras de raccordement déformables (24) raccordés chacun à la périphérie (12a) de la partie optique et à un élément de contact (18).

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