Hydrogel copolymers for biomedical devices

Details Hydrogel copolymers for biomedical devices Hydrogel copolymers for biomedical devices

C - Chemistry, Metallurgy

08

F

C08F 290/06 (2006.01) C08F 220/20 (2006.01) C08G 18/12 (2006.01) C08G 18/32 (2006.01) C08G 18/61 (2006.01) C08G 18/66 (2006.01) G02B 1/04 (2006.01)

Patent

CA 2592227

Hydrogel copolymers which are hydrated polymerization products of monomeric mixtures comprising polysiloxane prepolymers and hydrophilic comonomers are useful for forming biomedical devices, particularly ophthalmic devices including contact lenses, intraocular lenses and ophthalmic implants. The copolymers have a desirable combination of oxygen permeability, tensile modulus, and water content, especially for soft contact lenses.

Des copolymères hydrogel, qui sont des produits de polymérisation hydratés de structures monomériques contenant des prépolymères de polysiloxane et des comonomères hydrophiles, sont utiles pour former des dispositifs biomédicaux, notamment des dispositifs ophtalmologiques comprenant des lentilles de contact, des lentilles intraoculaires et des implants ophtalmologiques. Les copolymères ont une combinaison désirable de perméabilité à l'oxygène, de module d'élasticité en traction et de teneur en eau, ce qui convient particulièrement bien pour les lentilles de contact souples.

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