发明授权
- 专利标题： Silicone hydrogel lenses with water-rich surfaces
- 专利标题（中）： 具有富水表面的硅胶水凝胶镜片
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申请号： US13900136申请日： 2013-05-22
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公开(公告)号： US08939577B2公开(公告)日： 2015-01-27
- 发明人: Yongxing Qiu , John Dallas Pruitt , Sibichen J. Thekveli , Robert Carey Tucker , Jared Nelson
- 申请人： Novartis AG
- 申请人地址： CH Basel
- 专利权人： Novartis AG
- 当前专利权人： Novartis AG
- 当前专利权人地址： CH Basel
- 代理商 Jian Zhou
- 主分类号： G02C7/00
- IPC分类号： G02C7/00 ; G02C7/02 ; G02C7/04 ; G02B1/04
摘要：
The invention is related to a hydrated silicone hydrogel contact lens having a layered structural configuration: a lower water content silicone hydrogel core (or bulk material) completely covered with a layer of a higher water content hydrogel totally or substantially free of silicone. A hydrated silicone hydrogel contact lens of the invention possesses high oxygen permeability for maintaining the corneal health and a soft, water-rich, lubricious surface for wearing comfort.
公开/授权文献
- US20130250234A1 SILICONE HYDROGEL LENSES WITH WATER-RICH SURFACES 公开/授权日：2013-09-26