Foldable ophthalmic and otorhinolaryngological device materials
AssigneeAlcon Universal Ltd.
InventorsCharles Freeman, Douglas C. Schlueter
Life of this patent
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Abstract
Disclosed are soft, high refractive index, acrylic materials having an elongation of at least 150%. These materials, especially useful as intraocular lens materials, contain an aryl acrylic hydrophobic monomer as the single principal device-forming monomer. In addition to their use as intraocular lens materials, the present materials are also suitable for use in other ophthalmic or otorhinolaryngological devices, such as contact lenses, keratoprostheses, corneal inlays or rings; otological ventilation tubes and nasal implants.
Claims15
A polymeric ophthalmic or otorhinolaryngological device material having an elongation of at least 150%, consisting essentially of a single device-forming monomer, a cross-linking monomer, optionally a reactive UV absorber, and optionally a reactive blue-light absorber wherein the cross-linking monomer is CH2═C(CH3)C(═O)O—(CH2CH2O)n—C(═O)C(CH3)═CH2 having a number-average molecular weight of about 1000, and wherein the single device-forming monomer is present in an amount of at least about 80% by weight and is an aryl acrylic hydrophobic monomer of the formula
- wherein;
- A is CH3, CH2CH3, or CH2OH;
- B is (CH2)m or (O(CH2)2)n;
- m is 2-6;
- n is 1-10;
- Y is nothing, O, S, or NR, provided that if Y is O, S, or NR, then B is (CH2)m;
- R is H, CH3, CnH2n+1 (n=1-10), iso-OC3H7, C6H5, or CH2C6H5;
- w is 0-6, provided that m+w≦8;
- and
- D is H, C1-C4 alkyl, C1-C4 alkoxy, C6H5, or CH2C6H5.
Dependencies are inferred from the claim text.