发明授权
- 专利标题： Plasma surface treatment of silicone hydrogel contact lenses
- 专利标题（中）： 硅胶水凝胶隐形眼镜的等离子体表面处理
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申请号： US09295675申请日： 1999-04-21
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公开(公告)号： US06193369B1公开(公告)日： 2001-02-27
- 发明人: Paul L. Valint, Jr. , George L. Grobe , Daniel M. Ammon, Jr. , Michael J. Moorehead
- 申请人： Paul L. Valint, Jr. , George L. Grobe , Daniel M. Ammon, Jr. , Michael J. Moorehead
- 主分类号： G02C704
- IPC分类号： G02C704
摘要：
The present invention provides an optically clear, hydrophilic coating upon the surface of a silicone hydrogel lens by subjecting the surface of the lens to a process comprising plasma treatment, hydration, and heat sterilization that is controlled to result in a silicate-containing film having a mosaic pattern of projecting plates surrounded by fissures when viewing a 50×50 micron square AFM image, wherein the peak-to-valley distances of the fissures are on average between about 100 and 500 angströms and the plate coverage is on average between about 40% to 99%.