US 5,861,031 AGranted

Intraocular lens from arylalkyl(meth)acrylate polymer(s)

AssigneeNestle S.A.

InventorsFarhad Hod Namdaran, Albert Raymond LeBoeuf

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Abstract

High refractive index copolymers comprised of monomers having the formula: ##STR1## wherein X is H or CH.sub.3 ; m is 0-10; Y is nothing, O, S, or NR wherein R is H, CH.sub.3, C.sub.n H.sub.2n+1 (n=1-10) iso OC.sub.3 H.sub.7, C.sub.6 H.sub.5, or CH.sub.2 C.sub.6 H.sub.5 ; Ar is an aromatic ring which is unsubstituted or substituted with H, CH.sub.3, C.sub.2 H.sub.5, n-C.sub.3 H.sub.7, iso-C.sub.3 H.sub.7, OCH.sub.3, C.sub.6 H.sub.11, Cl, Br, C.sub.6 H.sub.5 or CH.sub.2 C.sub.6 H.sub.3 ; and n is 1-5; and a cross linking monomer having a plurality of polymerizable ethylenically unsaturated groups are disclosed. Intraocular lenses made of the copolymers which can be inserted into an aphakic eye through a relatively small incision are also disclosed.

Claims3

Dependent claims

A foldable intraocular lens comprising an optic wherein the optic comprises a copolymer having a glass transition temperature less than about 37.degree. C. and an elongation of at least 150%, wherein the copolymer comprises

(i) at least two monomers of the formula:
##STR4## wherein X is H or CH.sub.3 ;
m is 0-10;
Y is nothing, O, S, or NR wherein R is H, CH.sub.3, C.sub.n H.sub.2n+1 (n=1-10), iso OC.sub.3 H.sub.7, C.sub.6 H.sub.5, or CH.sub.2 C.sub.6 H.sub.5 ;
Ar is an aromatic ring which can be unsubstituted or substituted with CH.sub.3, C.sub.2 H.sub.5, n-C.sub.3 H.sub.7, iso-C.sub.3 H.sub.7, OCH.sub.3, C.sub.6 H.sub.11, C.sub.6 H.sub.5 or CH.sub.2 C.sub.6 H.sub.5 ;
provided that one of the monomers has X=H and the other monomer has X=CH.sub.3, and further provided that the monomer having X=H is present in an amount greater than the monomer having X=CH.sub.3 ;
and
(ii) a copolymerizable cross-linking monomer having a plurality of polymerizable ethylenically unsaturated groups;
provided that the copolymer does not contain a total of 70% by weight or more of N-vinyl lactam or a total of about 70% by weight or more of a polyfunctional allyl monomer.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/943,082Filed 2 Oct 1997 · continuation
Priority: 7 Nov 1990
Granted: 19 Jan 1999
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

A61F 2/16
Eye parts, e.g. lenses or corneal implants; Artificial eyes: intraocular lenses
A61F 2/1616
Having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having…:…
A61L 27/16
Macromolecular materials: obtained by reactions only involving carbon-to-carbon unsaturated bonds
B29D 11/023
Artificial eyes from organic plastic material: implants for natural eyes

Family

Serial609,863Parent of this continuation-in-part · filed 7 Nov 1990
Serial837,796Parent of this continuation · filed 18 Feb 1992
Serial76,378Parent of this continuation · filed 14 Jun 1993
Serial157,789Parent of this continuation · filed 24 Nov 1993
Serial362,614Parent of this continuation · filed 22 Dec 1994
Serial594,362Parent of this continuation · filed 30 Jan 1996
US 5,674,960 AParent of this continuation
US 5,403,901 AParent of this continuation
US 5,290,892 AParent of this continuation
US 5,861,031 AThis patent

From the US filing history. Foreign family members aren’t listed.