HYDRATABLE COPOLYMER (OPTIONS), OPHTHALMOLOGIC MEANS, METHOD OF MANUFACTURING INTRAOCULAR LENS, AND METHOD OF IMPLANTING OPHTHALMOLOGIC MEANS INTO EYE Russian patent published in 2004 - IPC

Abstract RU 2238283 C2

FIELD: ophthalmology.

SUBSTANCE: invention relates to copolymer materials used as ophthalmologic means such as contact lenses, intraocular lenses, keratoprostheses, and corneal rings, or inserts, in particular for intraocular flexible lenses made from acrylic copolymer materials. Invention provides hydratable copolymer containing three monomer components: first component contains aryl (meth)acrylate; second component, which is other than acrylate, contains monomer including aromatic ring with substituent with at least one unsaturated ethylene moiety; and third component contains monomer capable of forming hydrogels with high content of water. Copolymer is prepared via polymerization of the three monomer components in presence of cross-linking agent. Resulting copolymer has high refraction factor (above 1.5) and, in dry state, it is sufficiently hard to be cut and polished and becomes soft and flexible on hydration.

EFFECT: improved consumer's properties of copolymer.

42 cl, 3 tbl, 2 ex

Similar patents RU2238283C2

Title Year Author Number
ACRYLIC MATERIALS WITH HUGH REFRACTIVE INDEX WITH REDUCED QUANTITY OF BLINDING FLASHES FOR OPHTHALMOLOGICAL DEVICES 2011
  • Laredo Uolter R.
  • Friman Charl'Z
  • Kallagan Tomas A.
RU2571091C2
MATERIALS FOR OPHTHALMOLOGICAL OR OTOLARYNGOLOGICAL ARTICLES 2006
  • Shljuter Duglas K.
RU2412211C2
HYDROGEL INTRAOCULAR LENS AND METHOD OF ITS FORMATION 2009
  • Leman Chens
RU2491034C2
MATERIALS FOR OPHTHALMOLOGICAL AND OTORHINOLARYNGOLOGICAL DEVICES 2006
  • Shljuter Duglas K.
  • Karakelle Mutlu
RU2414481C2
SILOXANE MATERIALS FOR INSERT WITH HIGH REFRACTIVE INDEX FOR CONTACT LENSES CONTAINING EMBEDDED ELEMENT 2021
  • Cheng, Jing
  • Zhang, Steve Yun
RU2807549C1
MATERIALS FOR OPHTHALMOLOGICAL AND OTORHINOLARYNGOLOGIC DEVICES 2008
  • Shljuter Duglas K.
RU2469743C2
HYDROPHILIC MATERIALS WITH HIGH REFRACTIVE INDEX 2017
  • Bents, Patrik
  • Rebul, Adam
RU2757857C2
METHODS AND SYSTEMS FOR LEACHING AND EXTRACTING OPHTHAMOLOGIC LENSES BASED ON SILICON HYDROGEL USING ALCOHOL SOLUTIONS 2006
  • Vanderlan Duglas G.
  • Dubej Dkharmesh K.
  • Ford Dzhejms D.
  • Molok Frehnk F.
RU2389608C2
MULTIFOCAL CONTACT LENS SHOWING IMPROVED VISUAL PERFORMANCE 2020
  • Makhadevan, Shivkumar
  • Rajt, Don D.
  • Klark, Ronald Dzh.
  • Karkkainen, Tomas R.
  • Nenkivil, Derek
RU2825122C1
HYDROPHOBIC MATERIALS WITH LOW STICKINESS FOR OPHTHALMOLOGICAL DEVICES 2012
  • Laredo Uolter R.
  • Tszjan Sjujvehj
RU2570575C2

RU 2 238 283 C2

Authors

Mehntak Khalid

Dates

2004-10-20Published

2000-03-29Filed