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US 12,558,213 B2Granted
Multi-part intraocular lens with locking mechanism
AssigneeAlcon Inc.
InventorsKamal K. Das, William Jacob Spenner Dolla
Life of this patent
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Abstract
A multi-part intraocular lens (IOL) with an interchangeable optic seated on a base and secured by a locking mechanism. The optic comprises an anterior surface with a diameter greater than a diameter of a ring of the base. The posterior side of the optic has a posterior surface, a transition region for contact with the base, and sidewalls and tabs radially outward of the transition region. The sidewalls and tabs overlap at least a portion of the ring to reduce or even prevent decentration and tilt of the optic. Each tab has a lateral extension for coupling to the base.
Claims7
An intraocular lens assembly, comprising:
- a ring, comprising:
- an anterior surface and a posterior surface defining a ring thickness;
- and
- a plurality of openings extending through the ring thickness from the anterior surface to the posterior surface;
- and
- an optic, comprising:
- an anterior side, a posterior side, and a plurality of tabs radially inward of a radially outermost boundary of the optic, the plurality of tabs protruding from the posterior side of the optic in a direction substantially orthogonal to the posterior side of the optic, each of the plurality of tabs comprising a lateral extension;
- wherein each of the plurality of tabs is configured to extend through one of the plurality of openings such that an anterior surface of each of the lateral extensions is positioned against the posterior surface of the ring.
5 more elements
Dependencies are inferred from the claim text.