Intraocular lenses having closed-loop ring haptic structures
AssigneeAlcon Inc.
InventorsStephen John Collins, Jian Liu, Michael Lee Mangum, Douglas Brent Wensrich
Life of this patent
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Abstract
An ophthalmic device includes an optic including an optic axis and a periphery and a closed-loop ring haptic structure coupled with the optic. The closed loop haptic structure includes a first ring structure having a first characteristic length, a second ring structure having a second characteristic length, and a plurality of connectors coupling the first ring structure and the second ring structure. The first ring structure is positioned adjacent to the periphery of the optic and is coupled to the entire periphery of the optic, and the first characteristic length is less than the second characteristic length.
Claims10
An ophthalmic device comprising:
- an optic including an optic axis;
- and
- a closed-loop ring haptic structure coupled with the optic and including a first ring having a first characteristic length, a second ring having a second characteristic length, and a plurality of connectors coupling the first ring and the second ring, wherein:
- the optic and the first ring are located in a first plane that is substantially perpendicular to the optical axis;
- the second ring is located in a second plane that is substantially perpendicular to the optical axis and spaced apart from the first plane;
- an outer perimeter of the second ring is entirely disposed radially outward of the plurality of connectors;
- each of the plurality of connectors is entirely disposed between the first plane and the second plane;
- and
- the plurality of connectors each comprise:
- a first component extending from the first ring in a radial direction;
- a second component extending away from the first component in an axial direction;
- a radially inward surface having a concave curvature extending between the first component and the second component;
- and
- a radially outward surface having a convex curvature extending between the first component and the second component.
Dependencies are inferred from the claim text.