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LENTILLE INTRAOCULAIRE À ACCOMMODATION PSEUDOPHAQUE
专利权人:
Anew Optics; Inc.
发明人:
申请号:
EP11784384.7
公开号:
EP2571453A2
申请日:
2011.05.23
申请国别(地区):
EP
年份:
2013
代理人:
摘要:
The invention is directed to an assembly comprising a haptic for fixation to, and manufacture in conjunction with, an intraocular lens to be implanted in the natural lens capsule of an eye. The haptic of the invention comprises a continuous ribbon forming an essentially oblong shape having anterior and posterior portions relative to the elliptical center of the haptic, wherein the ribbon loop includes two or more essentially congruent ribbon arches in each portion, and each ribbon arch has a natural index of curvature with an inner and outer edges. designed to expand the eye capsule and put tension on the zonules of the eye. The ribbon affixes to the lens on each side of the optic edge at a point or a series of points that provides suitable centration and stability of the optic, and to suspend the optic in the open capsular space. The material of the haptic is preferably somewhat flexible, and elastic, so as to provide a constant, positive force on the capsule throughout all phases of accommodation, thereby preserving tension of the zonules and allowing the capsule to change shape naturally. The haptic ribbons may be solid or of an open work structure to increase the amount of hydration available to the lens capsule. A secondary haptic ribbon, affixed to a plano optical plate, may be located on the posterior capsular surface and oriented so that the haptic arms extend through the capsular prime meridian to the anterior capsular surface at a 90° angle from the anterior haptic ribbons, thus providing for a capsular configuration as natural as possible, yet associated with an intraocular lens that may be inserted through an incision of less than 3 millimeters.L'invention porte sur un ensemble qui comporte un haptique pour la fixation à une lentille intraoculaire destinée à être implantée dans la capsule de la lentille naturelle du globe oculaire et pour la fabrication en association avec celle-ci. L'haptique selon l'invention comporte un ruban continu formant une forme
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