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CONTACT LENSES
专利权人:
NOVARTIS AG
发明人:
PRJuIT Dzhon Dallas (US),ПРЮИТ Джон Даллас (US),UINTERTON Linn Kuk (US),УИНТЕРТОН Линн Кук (US),PRJUIT DZHON DALLAS,ПРЮИТ Джон Даллас,UINTERTON LINN KUK,УИНТЕРТОН Линн Кук
申请号:
RU2010112234/05
公开号:
RU0002486920C2
申请日:
2008.08.27
申请国别(地区):
RU
年份:
2013
代理人:
摘要:
FIELD: medicine.SUBSTANCE: invention refers to an ophthalmic product represented by a sealed and sterilised package comprising a packaging solution and a soft hydrogel contact lens immersed in the packaging solution. The soft hydrogel contact lens comprises a polymer matrix, a first leaching polymeric lubricant and a second leaching polymeric lubricant, wherein the second leaching polymeric lubricant has an average molecular weight at least 3 times greater than the average molecular weight of the first leaching polymeric lubricant. The packaging solution contains approximately 0.1 wt % to approximately 1 wt % of a hydroxyl-containing polymer increasing the viscosity and specified in the group consisting of hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methylcellulose, and mixtures thereof, polyethylene glycol having a molecular weight of 400 or less, α-oxo-polyatomic acid or a salt thereof in an amount sufficient to provide a reduced oxidative degradability of polyethylene glycol in the packaging solution with the viscosity from approximately 2.0 to approximately 8.0 cps at 25°C, one or more buffer agents in an amount sufficient to provide a pH of the solution equal to 6.0 to 8.0, and wherein the packaging solution has an osmolality from approximately 200 to approximately 450 mOsm/kg. What is also described is a method for producing the soft contact lens.EFFECT: helping with the initial discomfort of an individual who wears the contact lenses and comforting the above individual for a period of time longer than 6 h.15 cl, 6 exИзобретение относится к офтальмологическому продукту, представляющему собой герметизированную и стерилизованную упаковку, включающую упаковочный раствор и мягкую гидрогелевую контактную линзу, погруженную в упаковочный раствор. Мягкая гидрогелевая контактная линза включает полимерную матрицу, первое выщелачивающееся полимерное смазывающее вещество и второе выщелачивающееся полимерное смазывающее вещест
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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